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FY8-13F4-000 FEB. 1998 COPYRIGHT © 1998 CANON INC . CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) SER VICE MANUAL REVISION 0.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) COPYRIGHT © 1998 CANON INC. Printed in Japan Imprimé au Japon Use of this manual should be strictly supervised to avoid disclosure of confidential information.
Introduction i COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) This Service Manual provides basic facts and figures you will need to service the plain paper copier NP6621 in the field.
ii Introduction COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) RDF-F1 (Recirculating Document Feeder) Automatically feeds a set of up to 100 originals to the platen glass for copying. The RDF can also turn over two-sided originals for automatic two-sided copying.
iii COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) CONTENTS CHAPTER 1 GENERAL DESCRIPTION I. FEATURES ................................................ 1-1 II. SPECIFICATIONS ..............................
iv COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. Duplexing Unit ................................... 3-63 D. Pick-Up from the Cassette Feeding Module-A2 ......................................... 3-72 E.
v COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 6 MAINTENANCE AND SER VICING C. Paper Deck Pedestal-K1 ..................... 6-3 III. BASIC SERVICING ................................... 6-4 IV. SERVICING CHART .
vi COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 1 GENERAL DESCRIPTION I. FEATURES ................................................ 1-1 II. SPECIFICATIONS ..................................... 1-2 A.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–1 I. FEA TURES When fitted with options, it provides a maximum of four paper sources. 1. Multiple front loading and multifeeder for space saving.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–2 Item Body Copyboard Light source Lens Photosensitive medium Specifications Deskt.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–3 Specifications Sheet, book, 3-D object (2 kg/2.204 lb. max.) A3 (297 x 420 mm) DIRECT, 2R2E (Table 1-1); zoom between 49% and 204% (fine zooming provided) 30 sec 9.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–4 Item Temperature Operating environment Humidity Atmospheric pressure Power suppl.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–5 Reproduction ratio DIRECT 1: 1 (±0.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–6 C. P aper Deck P edestal-K1 Table 1-204 Clawless Front loading Plain paper (64 t.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–7 III. NAMES OF PAR TS A. Exterior q Body open/close lever w Copy density correcti.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–8 B. Cross Section 1. Cross Section of the Body q No. 3 mirror w No. 2 mirror e No. 1 mirror r Scanning lamp t Fixing unit y Feeding assembly u Copyboard glass i Drum unit o Lens !0 Primary charging roller !1 Transfer roller !2 No.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–9 2. Cassette Feeding Module-A2 q Cassette 3 w Cassette 4 e Cassette 3 pick-up rol.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–10 3. Cassette Feeding Unit-K1 q Cassette 3 w Cassette 4 e Cassette 3 pick-up roll.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–11 4. Paper Deck Pedestal-K1 q Deck pick-up roller w Deck vertical path roller e V.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–12.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–13 q Sorter key w Two-sided key (left side) e Two-sided key (right side) r AE key t Copy exposure key y Reduce/1:1/Enlarge key u Message display Press to set or cancel the Sort, Staple Sort, and Group modes.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–14.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–15 Figure 1-402 Press to set or cancel the Transparency Interleaving mode. The interleaf sheets are printed with the same images as the transparencies.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–16 B. Making Copies 1) Place your originals. a. Placing originals on the platen glass • Lift the platen glass cover. • Place your original on the platen glass.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–17 C. Using the Stack Bypass You can place up to 50 sheets of copy paper (a stack approximately 5 mm high) in the stack bypass to be automatically fed into the copier.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–18 4) Adjust the slide guides to fit the size of the copy stock. Reference: 1. Be sure to adjust the slide guides to fit the size of the copy stock.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–19 7) Press the key. If you set the Two-sided, Two-page separation, Overlay, Image.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–20 Settings –0 –1 –2 –3 –4 –5 –6 –7 –8 –9 Auto Clear Time (min.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–21 a. Zoom Fine Adjustment (Reduction): Press the key.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–22 4) Make fine adjustments to the copy ratio in the X direction. • Press the Exposure keys ( ) to adjust the copy ratio. • The initial setting for Zoom Fine Adjustment is 0%.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–23 7. Stack Bypass Size Entry ON/OFF • When making two-sided and overlay copies, etc. on copy paper placed in the stack bypass, you must specify the size of the paper.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–24 4) Press the Number keys ( 1 , 0 ) to select Auto Sort ON/OFF. • The settings are displayed in the Copy quantity/Copy ratio display.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–25 11. Initializing User Mode • The settings that were changed in the Additional Functions mode can be restored to their initial settings.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–26 V . WARNINGS AND ACTIONS A. Jam Indicator 1. When q Flashes on the Control Panel 1) Open the front door. Figure 1-501 2) Lift the green lever on the left side to open the top of the main unit.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–27 • If a paper jam occurs in a location similar to that shown in the picture to the lower, slowly pull the paper out in the direction of the arrows, taking care not to tear it.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–28 7) Place your finger on the inner guide. • Push the inner guide down towards you and gently pull out any jammed paper so that it does not tear.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–29 2) Open the right door of the cassette. • Place your finger on the green finger grip and pull open the inner guide for the copier main unit cassette.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–30 7) After inspecting all jam location areas that appeared on the control panel, and removing any jammed paper, close the front door.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–31 4. If Flashes (Replacing the Toner Cartridge) • If the toner has run low, the Replace Toner Cartridge indicator ( ) will flash. Follow the procedure described below and replace the used toner cartridge with a new one.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–32 5) Set the new toner cartridge. • Gently insert it into the copier as far as it will go. • Make sure that the toner cartridge is inserted all the way into the copier.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–33 B. Cleaning the Static Charge Eliminator 1) Open the front door. • Remove any originals that have been placed on top of the copier so that they do not fall off when you open the main unit.
GENERAL DESCRIPTION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–34 VI. ROUTINE CLEANING Clean the following parts once a week or when- ever copies appear dirty. Warning: 1. When cleaning the copier, first turn OFF the power switch and unplug the power plug.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 2 COPYING PROCESS I. IMAGE FORMATION ................................ 2-1 A. Outline ................................................. 2-1 B. Latent Static Image Formation Block .
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
2–1 COPYING PROCESS COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) I. IMA GE FORMA TION A. Outline Figure 2-101 Figure 2-102 Static latent image f or m.
2–2 COPYING PROCESS COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) The copier forms images through the following steps, and each of the steps functions as described below.
2–3 COPYING PROCESS COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. Step 1 (pre-exposure) Figure 2-105 Before primary charging takes place, the light of the pre-exposure lamp is directed to the photosen- sitive drum to eliminate the residual charges on the drum, thereby preventing uneven density.
2–4 COPYING PROCESS COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) F . Step 4 (development) Figure 2-109 E. Step 3 (image exposure) Figure 2-107 In this step, the optical image of an original is projected on the photosensitive drum to neutralize the charges in the light areas.
2–5 COPYING PROCESS COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) G. Step 5 (transfer) Figure 2-111 The transfer roller deposits negative charges on the back of copy paper to attract toner from the drum surface to the copy paper.
2–6 COPYING PROCESS COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) H. Step 6 (separation) Figure 2-113 The copier uses a curvature separation method, which separates copy paper from the photosensi- tive drum by the rigidity of the paper.
2–7 COPYING PROCESS COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) J. Step 8 (drum cleaning) I. Step 7 (fixing) Figure 2-114 In this step, the copy paper is pressed between two heated rollers to make the toner image permanent.
2–8 COPYING PROCESS COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) II. AUXILIAR Y PR OCESS A. Blank Exposure Blank exposure is executed to remove the drum surface potential of the non-image area that occurs as a result of the difference among copy sizes or when making copies in Reduce mode.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 3 OPERA TIONS AND TIMING In outline diagrams, represents mechanical drive paths, and indicates electrical signal paths. Signals in digital circuits are identified as ‘1’ for High and ‘0’ for Low.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) I. Fixing/Delivery Assembly .................. 3-87 J. Detecting Jams .................................. 3-92 V. POWER SUPPLY ...............................
3–1 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) I. BASIC OPERA TIONS A. Functional Construction The machine can be divided into four functional blocks: pick-up/feeding system, exposure system, image formation system, and control system.
3–2 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) B. Outline of Electrical Cir- cuitry The machine’s most electrical mechanisms are controlled by the microprocessor on its DC controller PCB.
3–3 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. Inputs to the DC Controller 1. Inputs to the DC Controller PCB (1/5) Figure 3-103 5V PS 1 Registration sensor 5V J 310A- 3 - 2 - 1 PS 2 LHP When the home position sensor detects lens, '1'.
3–4 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Inputs to the DC Controller (2/5) Figure 3-104 5V PS 11 Vertical path roller 1 paper sensor 5V J 309- 6 - 5 - 4 PS 12 VP2P When PS12 detects paper, '1'.
3–5 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Inputs to the DC controller (3/5) Figure 3-105 J 310B- 8 - 7 - 9 PS 21 Original size sensor 2 5V J 310B- 2 - 1 - 3 SIZE1 PS 23 DC controller SIZE2 Varies according to paper size.
3–6 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 4. Inputs to the DC Controller PCB (4/5) Figure 3-106 J 651 - 6 - 5 - 4 - 3 - 2 - 1 J 318 - 7 - 8 - 9 - 10 - 11 - 12 CS CSZ1 CSZ2 CSZ3 CSZ4 Cassette size sensor 2 See p.
3–7 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 5. Inputs to the DC Controller PCB (5/5) Figure 3-107 DC controller PCB AEVR1 .
3–8 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) D. Outputs from the DC Controller 1.
3–9 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Outputs from the DC Controller PCB (2/5) Figure 3-109 When '0', the registration clutch turns ON.
3–10 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Outputs from the DC Controller PCB (3/5) Figure 3-110 DC controller PCB COM A COM B A A* B B* J326- 1 - 2 - 3 - 4 - 5 - 6 Duplexing unit motor While M5 is rotating, alternates between '1' and '0.
3–11 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 4. Outputs from the DC Controller PCB (4/5) Figure 3-111 DC controller PCB Change solenoid +24V SL1 CHSLD* When '1', the solenoid turns OFF.
3–12 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 5. Outputs from the DC Controller PCB (5/5) Figure 3-112 AST-CNTP* +24V J 315.
3–13 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) E. Inputs to and Outputs from the Cassette Feeding Module-B2 Driver PCB 1.
3–14 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) F . Inputs to and Outputs from the Cassette Feeding Module-A2 Driver PCB 1.
3–15 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Inputs to and Outputs from the Cassette Feeding Module-A2 Driver PCB (2/2).
3–16 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) G. Inputs to and Outputs from the Cassette Feeding Unit-K1 Driver PCB 1.
3–17 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Inputs to and Outputs from the Cassette Feeding Unit-K1 Driver PCB (2/3) F.
3–18 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Inputs to and Outputs from the Cassette Feeding Unit-K1 Driver PCB (3/3) C.
3–19 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 4. Inputs to Paper Deck-K1 Controller (1/2) Figure 3-119 5V PS 5 Deck open sensor 5V J 112- 3 - 2 - 1 PS 2 DVRPD When PS2 detects paper, "1".
3–20 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 5. Outputs from Paper Deck-K1 Controller (2/2) Figure 3-120 Pedestal controller PCB When "0" , CL3 goes ON. "1" or "0" depending on the type of copier, thereby changing revolution.
3–21 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) H. Main Motor Control Circuit 1. Outline Figure 3-121 shows the circuit that controls the main motor (M1), and the circuit has the following functions: q Turns ON/OFF the main motor.
3–22 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) I. Basic Sequence of Operations (2 copies, continuous, AE) Figure 3-122 Main .
3–23 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) From switch on until the fixing roller temperature reaches 165°C for the black developer or 145°C for the CT Unit.
3–24 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) when the copyboard cover is closed and identify the original as being any of the default paper sizes.
3–25 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Operations When the copyboard cover is brought down to about 30° or less, the copyboard cover sensor (PS11) turns ON, i.e., the light-blocking plate blocks PS11.
3–26 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Original Size Detection The size of an original is identified with reference to the presence/absence of an original at each sensor based on the sensor output combinations given in Table 3-102.
3–27 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) B. Lens Drive System 1. Outline The lens drive system is driven by the lens motor (M3), and the drive generated by the lens motor is transmitted to the blanking shutter exposure unit through a relay gear.
3–28 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Figure 3-202 Change solenoid (SL1) Lens motor (M3) Lens cable Lens motor (M3).
3–29 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Lens Motor Drive Circuit The lens motor (M3) is a stepping motor and is rotated by the drive power supply signal LNSCA/ LNSCB and pulse signals LNSA/LNSA* and LNSB/ LNSB*.
3–30 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Basic Sequence of Operations for the Lens Drive System (enlargement/ reduc.
3–31 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. Scanner Drive System 1. Outline The scanner drive system is driven by the scanner motor (M2).
3–32 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Signal SCHP Description Registration clutch ON Scanner reverse OFF 0.1 sec later Scanner sensor PS1 Scanner home position sensor Scanner Forward Reverse ▲ 2.
3–33 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 4. Driving the Scanner Motor a.
3–34 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) D. Operations of the Scanner in Page Separation Mode Figure 3-208 I, II, and .
3–35 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) III. IMA GE FORMA TION SYSTEM A. Outline The machine’s image formation system con- sists of the following: • Controls the scanning lamp.
3–36 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) B. Sequence of Operations (image formation system) Main motor/ Pre-exposure l.
3–37 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) The machine exerts phase control by the zero- cross signal (ZXDP) to stabilize the light intensity. The intensity of the scanning lamp is switched controlled by the LIGHT INTENSITY CONTROL command (FLS).
3–38 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) D. Controlling the Primary Charging Roller 1.
3–39 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Turning ON/OFF the Primary Charg- ing Roller Bias Under the control of the.
3–40 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) The sequence of this control mechanism is as follows during initial rotation after the power switch is turned ON: • Flow A specific voltage (about -1.
3–41 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) E. Contr olling the T ransf er Roller Bias 1. Outline The machine uses a direct transfer method that uses a roller; and, for this reason, it executes bias control in a way different from copiers that rely on corona charging.
3–42 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Figure 3-306 shows the circuit that controls the foregoing three types of biases, and the circuit has the following functions: • Turns ON/OFF the transfer roller bias.
3–43 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Turning ON/OFF the Transfer Roller Bias The TFWON signal is generated unde.
3–44 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) F . Controlling the Static Elimi- nator Bias 1.
3–45 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Switching the Voltage Level of the Static Eliminator Bias The microprocess.
3–46 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) G. Controlling the Developing Bias 1. Outline Figure 3-308 shows the circuit that controls the developing bias, and the circuit has the following functions: • Turns ON/OFF the developing bias AC component.
3–47 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Turning ON/OFF the Developing Bias DC Component and Controlling to Constan.
3–48 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) H. Copy Density A utomatic Control 1. Outline The machine is equipped with an automatic density correction (AE) function that controls the DC component of the developing bias to suit the density of the original used.
3–49 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. AE Adjustment The machine’s AE adjustment may be performed in service mode, and it consists of the following three: • automatic adjustment of the lamp intensity during AE scanning (No.
3–50 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) I. Developing/Cleaning As- sembly 1. Outline The machine’s photosensitive drum, developing cylinder, No. 1 stirring rod, and No.
3–51 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Toner Level Detection Control The level of toner inside the cartridge is monitored by the antenna sensor circuit. Inside the cartridge is the toner level sensor, and an AC bias is applied to the developing cylinder.
3–52 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) q If the toner is more than a specific level, Since toner exists around the toner level sensor, the AC bias generated by the sensor is greater than the reference signal.
3–53 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) J. Blank Exposure Control 1.
3–54 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Blanking the Non-Image Area (re- duction) In reduction mode, the change solenoid (SL1) turns ON, and the lens is moved to suit the selected reduction ratio.
3–55 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) K. Primary Charging Roller Cleaning Control 1. Outline The machine’s primary charging roller is equipped with an automatic cleaning mechanism.
3–56 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Transfer roller locking releasing solenoid Photosensitive drum Transfer roller Fulcrum Locking Releasing L. T ransfer Roller Locking/ Releasing Control 1.
3–57 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) IV . PICK-UP/FEEDING SYSTEM A. Pick-Up from the Machine 1. Outline When the pick-up clutch (CL2, CL3, or CL5) turns ON while the main motor is rotating, the appropriate pick-up roller rotates to pick up paper.
3–58 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Figure 3-401 SL2 SL8 M5 M1 CL6 CL3 CL2 CL5 CL1 DC controller PCB CL4 Paper de.
3–59 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Figure 3-402 DC controller PCB PS8 PS15 PS7 PS6 PS3 PS17 PS16 PS14 PS12 PS4 P.
3–60 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Sequence of Operations (pick-up/feeding system; A4, 2 copies, cassette 1) Figure 3-403 3.
3–61 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) B. Making T wo-Sided Copies (1 copy) 1.
3–62 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Copying on the 2nd Side Figure 3-407 2.
3–63 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. Duplexing Unit 1. Outline The machine uses a set-back method and a separation flapper during continuous two-sided copying.
3–64 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Set-Back Operations The lower feeding inlet roller and the lower feeding outlet roller are driven by the main motor, and the set- back roller is driven by a special stepping motor.
3–65 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) a. Set-Back Operations 1. The first copy moves from the delivery assembly to the duplexing unit. Figure 3-412 2. The leading edge of the copy paper butts against the set-back roller 1 and forms an arch.
3–66 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. The set-back rollers 1 rotate counterclockwise, and the leading edge of the copy paper stops at a point about 12 mm past the set-back roller 1.
3–67 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6. The set-back rollers 1 rotate clockwise, thereby pulling the trailing edge of the second copy paper out the duplexing unit inlet.
3–68 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 9. The set-back rollers 1 rotates counterclockwise, thereby stopping the trailing edge of the first copy paper 6 mm before the set-back rollers 1.
3–69 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Re-Pick Up Operation After copying on the first side, the copy paper stacked in the duplexing unit is picked up once again for copying on the second side.
3–70 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1. After the Copy Start key is pressed for the second side, the set-back roller and the duplexing unit outlet roller rotate clockwise.
3–71 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 4. When the registration sensor turns ON, the set-back roller and the duplexing unit outlet roller rotate clockwise to pick up the second copy paper.
3–72 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) D. Pick-Up from the Cassette Feeding Module-A2 1.
3–73 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Sequence of Operations (cassette 3; A4, 2 copies) INTR SRFW SCRV SRFW SCRV.
3–74 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) E. Pick-Up from the Cassette Feeding Unit-K1 1. Pick-Up Operation The cassette unit motor 1 (M1cu) is used to drive the vertical path roller, and its drive is also used by the pick-up operation for cassettes 3 and 4.
3–75 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Sequence of Operations (pick-up/feeding system; A4, 2 copies, cassette 3) Figure 3-429 3.
3–76 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) F . Paper Deck Pedestal-K1 1. Basic Construction The paper deck unit controls the operation of each load according to the signals from the pedestal controller PCB to send paper to the copier.
3–77 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Pick-Up/Feeding Operation a. Mechanism When the copier’s COPY START key is pressed, the deck pick-up clutch (CL1) turns on to rotate the deck pick-up roller.
3–78 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) b. Sequence of Pick-Up Operations (A4, 2 copies) INTR SCFW SCRV SCFW LSTR Cop.
3–79 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Lifter Operation a. Operation When the deck is slid inside the pedestal, the pick-up roller lowers and the light-blocking plate leaves the deck lifter position sensor (PS3).
3–80 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) b. Lifter Operation Figure 3-435 M Deck motor Feeding roller Separation rolle.
3–81 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 4. Detecting Paper in the Deck a. Identifying the Size of Paper You must set the switch (SW1) on the deck size switch PCB to suit the size of paper set inside the paper deck.
3–82 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) G. Multifeeder 1. Outline The multifeeder is a mechanism which picks up paper from its tray and which is capable of continuous pick-up operation.
3–83 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. Identifying the Size of Paper on the Multifeeder Tray The size of paper on.
3–84 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Sequence of Operations (multifeeder; A4, 2 copies) Figure 3-440 INTR SRFW .
3–85 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) H. Identifying the Size of the Cassette Specific photointerrupters (Q651, Q652, Q653, Q654) turn OFF or ON when a cassette is slid into a cassette holder.
3–86 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) To change the size of a cassette, move the guide plates (horizontal, vertical.
3–87 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) I. Fixing/Delivery Assembly 1. Controlling the Fixing Roller Tem- perature The upper and lower rollers of the fixing assembly and the delivery roller of the delivery unit are driven by the main motor (M1).
3–88 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Target temperatures for the following size paper: A3 – A4 Argentine letter .
3–89 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) The copier is equipped with three protection mechanisms to prevent the fixing heater from going ON at wrong timing.
3–90 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Operation of Fixing Assembly Tem- perature Control System Figure 3-443 Mai.
3–91 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 4. Detecting Overheating of the End of the Fixing Heater The rear end of the machine’s fixing heater is equipped with a sub thermistor (TH2) to detect and prevent overheating of the end of the fixing heater.
3–92 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) J. Detecting Jams As many as ten paper sensors (3 of which are in the cassette unit) are used to find out whether copy paper is moving normally.
3–93 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1. Vertical Path Roller 1 Delay Jam Copy paper does not reach the vertical path roller 1 paper sensor (PS16) within a specific time after the cassette 1 pick-up clutch (CL2) has turned ON.
3–94 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3. Vertical Path Roller 2 Delay Jam Paper does not reach the vertical path roller 2 paper sensor within a specific time after the cassette 2 pick- up clutch (CL5) has turned ON.
3–95 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 5. Pre-Registration Delay Jam (vertical path roller) Copy paper does not reach the pre-registration sensor (PS6) within a specific time after it has reached the vertical path roller 1 paper sensor (PS16).
3–96 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 7. Separation Delay Jam Copy paper does not reach the separation sensor (PS7) within a specific time after the registration clutch (CL1) has turned ON.
3–97 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 9. Delivery Delay Jam Copy paper does not reach the delivery sensor (PS8) within a specific time after the separation sensor (PS7) has turned ON.
3–98 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 10. Delivery Stationary Jam Copy paper does not move past the delivery sensor (PS8) within a specific time after the delivery sensor has turned ON because of feeding faults.
3–99 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 12. Pick-Up Delay Jam (cassette unit) Copy paper does not reach the cassette .
3–100 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 13. Pick-Up Delay Jam (Paper Deck Pedestal-K1) Figure 3-456 14.
3–101 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) V . PO WER SUPPL Y A. Outline of Power Distribution Figure 3-501 Door switch.
3–102 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) B. Power Supply Circuitry The machine’s power supply unit uses a single main transformer (T101) to supply DC power. AC power is supplied to the DC power supply when the power switch (SW1) and the door switch are turned ON.
3–103 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. Detecting Errors on the Power Supply PCB The microprocessor (U402) and LE.
3–104 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) D. Protection Mechanisms for the Power Supply Circuit The composite power su.
3–105 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) VI. SER VICE MODE A. Outline The machine’s service mode is grouped into the following six: B. Using Service Mode 1. Starting Service Mode 1) Open the front door, and insert the door switch actuator.
3–106 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 7. Recording on the Service Label Figure 3-601 shows the label attached behind the front door. Each machine is adjusted and set at the factory, and the appropriate values are re- corded on the label.
3–107 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. Control Display Mode (‘1’) • To select an item, press the appropriate number on the numeric keypad and then the Start key.
3–108 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) No. 101 Jam Location Display The type of jam is indicated using the copy counter.
3–109 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) No. 120 Jam interval indication By pushing key 1 2 3 4 5 6 7 8 9 0 Table 3-605 Jam interval indication 120 First lates jam interval.
3–110 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) D. I/O Mode (‘2’) • To start I/O display mode, press ‘2’ (numeric keypad) and then the AE key. • To select an item, press the appropriate number on the numeric keypad and then the Start key.
3–111 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) No. 214, No. 215, No. 216, No.
3–112 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) No. 219, No. 220, and No. 221 No. 219 220 221 Description ON: light-blocking plate present ON: light-blocking plate present ON: light-blocking plate present ON: light-blocking plate present See the table below.
3–113 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) No. 222 Port P0 Display Description ON: paper present ON: paper present ON: .
3–114 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) E. Adjustment Mode (‘3’) • To start the mode, press ‘3’ on the numeric keypad and press the AE key. • To select an item, press the appropriate number on the numeric keypad and then the Start key.
3–115 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) No. 312 313 314 315 316 318 319 320 321 322 323 Item Left/right margin adjus.
3–116 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) No. 324 325 326 327 328 Item Duplex paper stack timing adjustment Set-back r.
3–117 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Description Execute the mode after supplying toner during installa- tion work. Use the mode when checking the nip or when adjusting the pressure of the lower fixing roller.
3–118 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Description See p. 3-131. 9-step: 0 17-step: 1 default: 0 (9-step) • Entering ‘1’ on the numeric keypad causes the indica- tion to change to ‘ON’, activating the auto energy saver function.
3–119 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) No. 509 510 511 512 Item Universal cassette paper size storage (cassette 2) .
3–120 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) H. Counter Mode (‘6’) • To start counter mode, press the ‘6’ key on the numeric keypad and press the AE key. • To select an item, press the appropriate number on the numeric keypad and then the Start key.
3–121 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) VII. SELF DIAGNOSIS The microprocessor on the machine’s DC con- troller is.
3–122 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Possible cause • Composite power supply (faulty) • DC controller (faulty.
3–123 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Initializing Back-Up Error Codes If the self-diagnosis mechanism has turned .
3–124 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Code Cause • Cassette feeding unit control- ler (faulty) • Cassette feeding unit motor (faulty) Description • The motor clock signal is not detected within 1 sec after the pedestal motor drive signal has been generated.
3–125 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Code Cause • Data communication with copier (faulty) • Pick-up motor (fa.
3–126 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Code Cause • CPU or communication IC on sorter controller (faulty) • Fee.
3–127 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) VIII. ST AND ARDS AND ADJUSTMENTS A. Electrical 1 Adjustment after Replacing PCBs You must perform the following adjustments whenever you have replaced the following PCBs: a.
3–128 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) If you have replaced the AE sensor, scanning lamp, or DC controller or if you performed scanning lamp intensity adjustment (VR301), you must per- form • AE basic adjustment, • No.
3–129 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) • default: 0 settings: –26 to +26 • If the value is negative, ‘%’ is turned ON. To enter a negative value, press the ‘%’ key before entering the value.
3–130 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Remarks The lamp intensity is automatically adjusted so that the copies of the Test Chart will be made at density 5. q A lower setting in service mode causes the AE copies to be darker.
3–131 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 4 Multifeeder Paper Width Sensor Adjustment In this adjustment, you will be storing the char- acteristics of the multifeeder paper width sensor using service mode No.
3–132 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Numeric keypad 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 5 Setting the Paper Size f.
3–133 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6 Initializing the Back-Up RAM 1) Open the front door, and insert the door switch actuator into the door switch. 2) Press the service mode switch (SW850) with a hex key.
3–134 OPERATIONS AND TIMING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 4 MECHANICAL SYSTEM I. EXTERNALS ............................................. 4-1 A. External Covers ................................... 4-1 B. Control Panel .
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
4–1 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM I. EXTERNALS A. External Covers Note: Remove the covers as necessary to clean, inspect, or repair the inside of the machine. Those covers that may be detached by merely removing their mounting screws are left out of the discussions.
4–2 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM B. Control Panel 1. Removing the Control Panel 1) Remove the copyboard glass. 2) Remove the upper left cover. 3) Open the front door.
4–3 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM D. Fan 1. Removing the Exhaust Fan 1) Open the front door. 2) Pull the open/close door, and open the body. 3) Remove the relay connector q .
4–4 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM E. Counter* * This may not be available for sale in same areas. 1. Installing the Option Counter (CNT2) 1) Open the top body. 2) Remove the inside upper cover.
4–5 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM II. DRIVE SYSTEM A. Scanner Drive System 1. Removing the Scanner Drive Motor 1) Remove the copy board glass. 2) Remove the spring q , the E ring w , the tensioner e , and the belt r .
4–6 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 3. Assembling the Mirror Positioning Tool 1) Remove the screw from position B. Figure 4-208 2) Put the screw removed in step 1) to position A; then, tighten it slightly.
4–7 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 4. Routing the Scanner Cable Caution: You must keep the mirror positioning tool (FY9- 3009) and the pulley clip (FY9-3010) near at hand when routing the scanner cable.
4–8 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM Figure 4-211 Caution: When installing the cable spring, pay attention to the orientation of the spring. Be sure to install as indicated; if installed in the wrong direction, the hook tip of the spring can interfere with the cable.
4–9 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 5. Adjusting the Mirror Position (opti- cal length between No. 1 mirror and No. 2 and No. 3 mirrors) 1) Keep the mirror positioning tool near at hand.
4–10 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM B. Lens Drive Assembly 1. Removing the Lens Drive Motor 1) Remove the upper rear cover and the right glass retainer. 2) Remove the copyboard glass.
4–11 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 8) Remove the two screws o , and disconnect the connector !0 ; then, remove the lens motor !1 . Caution: When removing the screw o , disconnect the connector !0 first to avoid contact between the harness and the driver.
4–12 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 2. Routing the Lens Cable Figure 4-222 Lens Drive Assembly 1) Stop the lens cable at each pulley q , and wind it around the pulley w .
4–13 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 3. Positioning the Change Solenoid Loosen the two screws t to adjust so that the gear r moves through the arm e in the direction of b until it stops when the steel core q of the solenoid is fully pushed in the direction of B, i.
4–14 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM C. Main Motor 1. Removing the Main Motor Unit 1) Disconnect the two connectors q , and remove the three mounting screws w ; then, remove the main motor unit e .
4–15 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM III. PICK-UP/FEEDING SYSTEM A. Pick-Up Assembl y 1. Removing the Pick-Up Roller Unit 1) Remove the lower rear cover. 2) Remove the grip ring q , and remove the pick- up clutch w .
4–16 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 5. Adjusting the Left/Right Registration Make adjustments so that the image position is as indicated in Figure 4-308 when the Test Sheet is copied in Direct.
4–17 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM B. Multifeeder Assembly 1. Removing the Multifeeder Pick-up Roller Unit 1) Open the right door. 2) Remove the E-ring q , and pull out the bushing w .
4–18 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 3. Points to Note When Installing the Multifeeder Pick-Up Roller When installing the multifeeder pick-up roller q , make sure that the side with a cross w on the collar is toward the rear.
4–19 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 5) Remove the two E-rings i , and remove the two bushings o . 6) Remove the spring !0 of the actuator. 7) Remove the three screws !1 , and remove the solenoid mounting plate !2 .
4–20 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM C. Registration Roller Assem- bly 1. Removing the Registration Clutch 1) Remove the lower rear cover. 2) Remove the clip ring q , and disconnect the connector w ; then, remove the registration clutch e .
4–21 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM Figure 4-324 Caution: At this time, take care so that the springs at the front and the rear will not fly away. 3) Remove the upper registration roller e by lifting it.
4–22 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM D. Feeding Assembly 1. Removing the Feeding Belt 1) Remove the mounting screw w , and remove the feeding center guide w . 2) Pull the feeding roll e toward the fixing assem- bly, and remove it.
4–23 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM F . Duplexing Assembl y 1. Removing the Duplexing Assembly Inlet Unit 1) Remove the left cover. 2) Remove the delivery roller. 3) Disconnect the connector q , and remove the duplexing unit w inlet unit.
4–24 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM G. Cassette Unit 1. Removing the Copier from the Cas- sette Unit 1) Disconnect the copier’s power plug. 2) Disconnect the cassette unit connector q from the copier.
4–25 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 4. Points to Note When Installing the Pick-Up Roller When installing the pick-up roller q , install it so that the marking w shown in Figure 4-338 is toward the rear.
4–26 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 7. Removing the Pick-Up Clutch 1) Remove the pick-up drive unit. (See “Removing the Pick-Up Drive Unit.”) 2) Remove the cassette motor.
4–27 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 4) Remove the six screws w and two E-rings e ; then, remove the support plate r . 5) Remove the two pick-up clutches t . Figure 4-347 11.
4–28 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM Figure 4-351 (left) 3) Slide out the paper deck slowly to the front. 3. Removing the Lifter Wire 1) Remove the paper deck. 2) Remove the deck front cover.
4–29 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 8) Remove the E-ring !1 ; then, remove the gear !2 , parallel pin, and pulley cover (front/rear in common). Figure 4-357 9) Remove the end of the wire from the pulley (front/rear in common).
4–30 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 14 3 1 4 2 4 3 2 6) Remove the six mounting screws t , and re- move the pick-up assembly. Figure 4-361 5. Removing the Pick-Up Roller 1) Remove the pick-up assembly.
4–31 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 6. Points to Note a. The collars for the pick-up roller are identified by color; use the gold collar for the front, and the silver collar for the rear.
4–32 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 8. Points to Note When installing the feeding roller q , make sure that the belt pulley w attached to the feeding roller is toward the rear of the copier.
4–33 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 11. Adjusting the Pressure of the Sepa- ration Roller If double feeding or pick-up failure occurs fre- quently during pick-up operation, adjust the posi- tion of the pressure spring for the separation roller.
4–34 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM I V . EXPOSURE SYSTEM A. Illuminating Assembly 1. Removing the Scanning Lamp/Fluo- rescent Heater 1) Disconnect the power plug. 2) Remove the copyboard glass.
4–35 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 3. Removing the Blank Exposure Lamp 1) Remove the blank exposure lamp. (See “Re- moving the Blank Exposure Assembly.”) 2) Remove the four screws q , and disconnect the connector w .
4–36 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 6. Routing the Blank Shutter Cable Figure 4-410 7. Adjusting the Left/Right Margin Po- sition Turn the blank adjusting screw on the front plate shown in Figure 4-411 so that the measurements meet the standards.
4–37 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 9. Installing the Lens Heater 1) Remove the copyboard glass and the lens hood. 2) Remove the three screws, and disconnect the two connectors; then, remove the original size sensor q together with its mount.
4–38 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM V . CHARGING SYSTEM A. Drum Unit 1. Removing the Drum Unit 1) Open the front door. 2) Pull the developing assembly releasing lever q to the front, and turn it clockwise.
4–39 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM B. Primar y Charging Assem- bly 1. Removing the Primary Charging Unit 1) Remove the drum unit from the body. 2) Slide the locks q found on the top of the drum unit in the direction of the arrows.
4–40 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 3. Positioning the Primary Charging Roller Cleaning Solenoid Loosen the two screws used to fix the solenoid e in place and move the solenoid e in the the direction of arrow B so that the distance l in Figure 4-507 is 5.
4–41 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM D. Drum Heater* * This may not be available for sale in some areas. 1. Installing the Drum Heater 1) Remove the transfer guide from the copier.
4–42 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 1) Remove the developing assembly from the copier.
4–43 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 5) Remove the three E-rings u , and gear i , gear o , and gear !0 . Figure 4-606 6) Remove the screw !1 , and remove the butting roll !2 and roll case !3 .
4–44 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 8) Remove the side seal !5 . (both sides) Figure 4-609 Figure 4-610 4. Installing the Side Seal and the Blade Assembly 1) Clean the area where the side seal will be installed with alcohol.
4–45 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM VII. FIXING SYSTEM 1. Construction Figure 4-701 2. Removing the Upper Fixing Unit 1) Open the front cover. 2) Open the top body. 3) Remove the two screws q , and remove the fixing assembly cover w .
4–46 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 5) Open the fixing shutter t with the screw driver inserted into the hole u , after lifting the fixing shutter. Figure 4-704 6) Pull out the upper fixing unit slowly toward the rear.
4–47 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 15 14 13 13 13 10 11 12 8) Push the thermal switch t in the direction of the arrow, and remove it. Figure 4-708 9) Remove the screw y , and remove the metal plate u .
4–48 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM Figure 4-715 4) Remove the lower fixing roller r together with the bushing. Figure 4-716 5) Remove the bushing y from the front, and remove the HOT warning cover u .
4–49 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 7. Adjusting the Lower Fixing Roller Pressure (nip) If fixing faults are noted, make adjustments as follows: The nip is correct if it is as indicated in Figure 4- 718; otherwise, turn the bolt to adjust.
4–50 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM B. Composite Power Supply PCB 1. Removing the Composite Power Sup- ply PCB 1) Remove the lower rear cover and the left cover. 2) Disconnect all connectors of the composite power supply PCB.
4–51 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM 5) Remove the grounding wire r , screw t , the remaining connectors,and cord guide hook y ; then, remove the composite power supply PCB u .
4–52 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) MECHANICAL SYSTEM.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 5 INST ALLA TION VI. CASSETTE HEATER KIT 5 INSTALLATION PROCEDURE .......................................... 5-16 A. Unpacking ......................
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
5–1 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) I. SELECTING THE SITE Keep the following in mind when selecting the site of installation; if possible, pay a visit to the user’s before the delivery of the machine.
5–2 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) II. UNP A CKING AND INST ALLING THE COPIER When a metal part is brought in from a cold to warm environment, droplets of water can develop on the surface of the part.
5–3 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Step 6 7 8 Work Open the front cover, and push the lever found on the left side up in the direction of the arrow to open the copier’s top body.
5–4 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Work Pull the developing locking lever toward the front, and turn it clock- wise to release it. Remove the knob, and remove the dummy drum from the copier.
5–5 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) B. T urning On the Copier Work Connect the power plug to the power outlet. Turn on the power switch. Turn off the power switch. Supply toner according to the instructions given on the toner supply label attached behind the front door.
5–6 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Work Execute ‘No. 401’ in service mode. • Press the service mode switch (SW850), ‘4’ on the keypad, AE Key, and Start key in sequence.
5–7 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. Checking the Images and Operations Work Place the Test Sheet on the copyboard, and check the copies. Make copies in manual mode. Make sure that the external covers are free of scratches and deforma- tions.
5–8 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) D. Attaching the Drum Unit Step 1 2 3 4 Checks/Remarks Take care not to damage the surface of the drum and not to touch the primary charging roller.
5–9 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) E. Changing the Cassette Size Change the cassette size to suit the user’s needs. 1) Slide the cassette out of the copier. 2) Move the length plate inside the cassette to suit the length of the paper size.
5–10 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6) Set the paper size plates selected in step 4).
5–11 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Step 1 2 3 4 5 Work Move the lens to the Direct position. Take out the drum unit. Fix the scanner in place. Tape the front door and delivery assembly in place.
5–12 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) I V . REPLACING THE DRUM UNIT Go through the following when replacing the drum unit: Step 1 2 3 4 5 6 7 Work Turn off the copier, and open the front door and the copier’s top unit.
5–13 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Remarks To enter settings, • Select ‘No. 313’ in service mode, and enter the setting recorded on the label (PRIMARY) using the keypad.
5–14 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) V . INST ALLING THE CONTROL CARD IV N Caution: Be sure to disconnect the copier’s power plug before starting the installation work. 1) Open the front cover 2) Open the copier’s top body by operating its open/close lever.
5–15 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 11) Connect the connector t of the Control Card IV N. Figure 5-504 12) Connect the copier’s power plug, and turn on its power switch to check the operation of the Control Card IV N.
5–16 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) VI. CASSETTE HEA TER KIT 5 INST ALLA TION PROCEDURE A. Unpacking Open the shipping box, and check to make sure that none of the parts shown in Fig.
5–17 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Connector Support member Screw Connector cover Cassette heater Screws Mounting plate 1 Front cover Front lower cover Rear cover B.
5–18 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Connector on the heater Connector on the copier Screws Cassette heater Heater mounting hole 5) Put the screw back, and tighten it.
5–19 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Switch for the cassette heater 12) Turn on the copier’s cassette heater switch. (Of the two switches, one at the rear; the heater will be supplied with power when the copier is switched off.
5–20 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Cassette heater Screw Mounting plate 2 Screws C. Installation (to a Cassette Feeding Module-A2/B2/ Cassette Feeding Unit-K1) 1) Remove the cassettes and all rear covers from the cassette feeding unit/pedestal.
5–21 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6) Close the cover. 7) Connect the connector on the relay harness to the connector of the cassette heater (rear side plate of the cassette feeding unit/module).
5–22 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 10) Lead the other connector on the relay harness through the copier’s bottom plate as shown. Figure 5-617 11) Connect the connector on the relay harness with the copier’s connector.
5–23 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) • Cassette Feeding Module-A2 Figure 5-620 Caution: Make sure that the relay harness is outside the area indicated by dashed lines to prevent it from interfering with the feet of the cassette.
5–24 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) VII. CASSETTE HEA TER KIT 7 INST ALLA TION PRO- CEDURE A. Unpacking Open the shipping box, and make sure that none of the parts indicated Fig.
5–25 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) B. Installation 1) Remove the copier’s bottom cassette. 2) Remove the two screws, and remove the copier’s front right cover; then, disengage the snap, and remove the front lower cover.
5–26 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 7) Connect the relay harness to the heater. Figure 5-706 8) Install the heater to the paper deck, and fix it in place with a screw (black; M4 × 6).
5–27 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. Attaching the Ratings Label 1) Peel the backing sheet from the label, and attach the label to the rear cover of the pedestal as indicated.
5–28 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) B. Installation to the Copier Caution: This model may not be available for sale in some areas. Caution: Keep the following in mind when installing the RDD to the copier: 1.
5–29 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 3) Remove the two screws y , and detach the face cover t from the copier’s rear cover.
5–30 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6) Remove the slack from the cable between the copier and the RDD; keep the excess cable to the RDD using the harness band !0 .
5–31 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Switch SW3-1 SW3-2 SW3-3 SW3-4 SW3-5 SW3-6 Setting AII OFF ON ON OFF ON OFF – Descri.
5–32 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 12) After making sure that LED5 !8 (red) has come on, set the bits on the DIP switch 2.
5–33 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 16) Call up the service station to check if the initial settings have been successfully made; if the attempt has failed, reset the RAM once again starting with step 11) through 13).
5–34 INSTALLATION COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 6 MAINTENANCE AND SER VICING C. Paper Deck Pedestal-K1 ..................... 6-3 III. BASIC SERVICING ................................... 6-4 IV. SERVICING CHART .
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
MAINTENANCE AND SERVICING COPYRIGHT © 1996 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6–1 I. PERIODICALL Y REPLA CED PAR TS Of the parts used in the machine, those given in the table must be replaced on a periodical basis to maintain a specific level of machine performance.
MAINTENANCE AND SERVICING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6–2 Parts name Pick-up roller Pick-up separation pad Multifeeder pick-up rolle.
MAINTENANCE AND SERVICING COPYRIGHT © 1996 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6–3 No. 1 2 Parts name Pick-up roller Pick-up separation pad Parts No. FB2-2251-000 FG5-3614-000 Life (copies) 100,000 100,000 Q’ty 1 through 3 1 through 3 Remarks Actual copies made.
MAINTENANCE AND SERVICING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6–4 Step 1 2 3 4 5 6 7 8 9 10 11 Work Meet the person in charge. Make test copies in DIRECT, REDUCE, ENLARGE. Clean the static eliminator and feeding assembly.
MAINTENANCE AND SERVICING COPYRIGHT © 1996 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6–5 : clean : replace ✩ : lubricate : adjust : check or clean I V . SER VICING CHAR T Caution: Do not use solvents or oils other than those indicated.
MAINTENANCE AND SERVICING COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 6–6.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) APPENDIX A. GENERAL TIMING CHART ..................... A-1 B. SIGNALS AND ABBREVIATIONS ........... A-2 C. GENERAL CIRCUIT DIAGRAM ............... A-5 D. DC CONTROLLER CIRCUIT DIAGRAM .
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
A–1 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A. GENERAL TIMING CHART 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Sequence STBY.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–2 B. SIGNALS AND ABBREVIA TIONS 1. Signals A/A* HORIZONTAL REGISTRATION / DELIVERY/ DUPLEX MOTOR PHASE.
A–3 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) PWSW POWER SWITCH command RDOP RIGHT DOOR OPEN signal RGCLD REGISTRATION CLUTCH DRIVE command RGHP D.
A–4 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
A–5 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) C. GENERAL CIRCUIT DIA GRAM not available.
A–6 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
A–7 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) D. DC CONTROLLER CIRCUIT DIAGRAM DC Controller (1/14) + 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–8 DC Controller (2/14) 1 26 2 23 21 24 25 3 4 5 6 7 8 9 10 20 22 27 ADD14 ADD13 ADD12 ADD1 1 ADD10 ADD.
A–9 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) DC Controller (3/14) VCC R360 DA T A[8..15] WR RD CSIPC AST -RXD AST -TXD S-RXD S-TXD D-RXD D-TXD VC.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–10 DC Controller (4/14) RES RAMWR CSGA CSRAM CLCK VCC R384 VCC R382 VCC R380 WR RD VCC C330 VCC L6 INDUCTOR C326 OPTPHA OPTPHB OPTENB CSRAMOU VCC C329 C324 R383 PT[60.
A–11 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) DC Controller (5/14) + + + +24VF2 DUPLEX-COMA DUPLEX-COMB DUPLEX-A R409 TP8 Q334 VBG R410 TP9 Q335 .
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–12 DC Controller (6/14) +24V2 ZD303 Q338A 11 6 98 Q338C DSR-CL 31 4 Q338B 21 5 Q338D L WPU-CL 41 3 MF .
A–13 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) DC Controller (7/14) PT51 PT27 PT17 21 5 Q348B CHNG-SL 41 3 Q348D TRCLSL 51 2 Q348E MFMRLSL 31 4 Q3.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–14 DC Controller (8/14) PT51 PT27 PT17 21 5 Q348B CHNG-SL 41 3 Q348D TRCLSL 51 2 Q348E MFMRLSL 31 4 Q3.
A–15 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) DC Controller (9/14) PH0 PH1 PH2 PH3 PH4 PH5 PH6 C338 C339 C340 C341 C342 C343 C344 R487 R489 R491 .
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–16 DC Controller (10/14) VCC C337 P[30..37] P[30..37] P30 Q381H SEG0 P31 Q381G SEG1 P32 Q381F SEG2 P33 Q381E SEG3 P34 Q381D SEG4 P35 Q381C SEG5 P36 Q381B SEG6 P37 Q381A SEG7 81 1 71 2 61 3 51 4 41 5 31 6 21 7 11 8 VCC C335 P[60.
A–17 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) DC Controller (11/14) M6 M7 M8 M10 M1 1 M12 M6 M7 M8 M9 M1 1 M12 M6 M7 M8 M9 M1 1 M12 M6 M7 M8 M9 M.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–18 DC Controller (12/14) – + – + – + – + – + – + – + M-TH VCC R556 R557 +24V2 R553 R554 .
A–19 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) DC Controller (13/14) VCC J301 MOLEX 53258-0620 VBG GND GND34 + 34V VCC + 24VFI J302 J303 + 24VF1 +.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–20 DC Controller (14/14) + 24VF2 + 24V2 F302 J313 D-TXD GND D-RXD GND 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 .
A–21 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) E. COMPOSITE PO WER SUPPL Y CIRCUIT DIA GRAM Composite Power Supply PCB (1/6) 1/6 C2 ++ + + + + + +.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–22 Composite Power Supply PCB (2/6) U2B L4 -BA TT 24V + 5FBT + 31 2 9 14 + - C40 8 + + + + 24V 24V 36V.
A–23 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Composite Power Supply PCB (3/6) 1 2 J3 1 2 MV -L MRES HV -L HV -L HV -H HV -H HV -L HV -H P-CTRL-S.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–24 Composite Power Supply PCB (4/6) MV - L MV - H C70 C74 C76 C75 C77 C72 C71 C78 C80 C79 C81 J-CTRL J.
A–25 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Composite Power Supply PCB (5/6) R123 R1 17 3 7 6 5 2 1 4 8 DIS THR CV Q TR VCC R GND 1 5 6 27 6 5 .
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–26 Composite Power Supply PCB (6/6) R160 J13 1 2 R166 R159 R158 R219 R165 R157 R164 R162 R161 R163 R16.
A–2 7 COPYRIGH T © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) F . CONT R OL P ANEL KEY PCB Control Panel Key PCB (1/3) 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 .
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–28 Control Panel Key PCB (2/3) S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S1 1 S12 S13 S14 S0 S1 S2 S3 S4 S5 S6.
A–29 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Control Panel Key PCB (3/3) 1 2 3 4 5 6 7 8 9 0 CLEAR STOP COPY RESET OK ENLARGMENT 1:1 REDUCTION D.
A–30 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
A–31 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) G. AE SENSOR CIRCUIT DIA GRAM PD601 C601 +24V Q601 1 2 3 R601 8 4 R603 R602 R605 +24V J601.
A–32 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) H. INTENSITY SENSOR CIRCUIT DIA GRAM FROM POWER SUPPL Y J403 WHITE W1 W2 AC INPUT CABLE 1 .
A–33 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) I. T ONER LEVEL DETECTION CIRCUIT DIA GRAM R769 D762 2 3 8 4 - + +24V 1 2 J752 J752 ADJ- A.
A–34 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) J . CASSETTE FEEDING MODULE-B2 GENERAL CIRCUIT DIAGRAM 3 2 1 2 1 13 12 11 10 9 8 7 6 5 4 3.
A–35 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) K. CASSETTE FEEDING MODULE-B2 DRIVER CIRCUIT DIAGRAM Driver Circuit Diagram (1/2) C104 +5V.
A–36 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Driver Circuit Diagram (2/2) C100 + C109 Q102 +34V R102 R101 +5V R104 Q104 +5V R103 Q103 R.
A–37 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) L. CASSETTE FEEDING MODULE-A2 GENERAL CIRCUIT DIAGRAM PS4 J2227F Paper Detector2 3 2 1 2 1.
A–38 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) M. CASSETTE FEEDING MODULE-A2 DRIVER CIRCUIT DIAGRAM Driver Circuit Diagram (1/2) +5V C104.
A–39 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Drivcr Circuit Diagram (2/2) C100 + C109 Q102 +34V R102 R101 +5V R104 Q104 +5V R103 Q103 R.
A–40 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON).
A–41 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) N. CASSETTE FEEDING UNIT -K1 GENERAL CIRCUIT DIA GRAM M 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–42 O . CASSETTE FEEDING UNIT -K1 Cassette Feeding Unit-K1 (1/3) D124 D123 D122 D121 6 5 4 3 2 1 12 11 .
A–43 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Cassette Feeding Unit-K1 (2/3) C1 10 Q1 10 +5V 20 10 VCC GND MTR-COM3 Q105 +5V R105 9 11 19 Q124 Q1.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–44 Cassette Feeding Unit-K1 (3/3) COM A A A COM B B B +5V R309 Q302 +34V 1 3 5 7 9 11 13 15 17 2 4 6 8.
A–45 COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) P . P APER DECK PEDEST AL-K1 GENERAL CIRCUIT DIA GRAM CL J92F 3 2 1 J94F 3 2 1 J95F 3 2 1 J91F 3 2 .
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A–46 Q . P APER DECK PEDEST AL-K1 DRIVER CIRCUIT DIA GRAM CLR C104 C103 D1 13 Q1 13 5 6 PR D CK 2 3 Q120.
A–47 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) R. SPECIAL TOOLS See the table for the special tools used to service the machine in addition to the standard tools set. No. 1 2 3 Remarks For adjusting the distance between No.
A–48 APPENDIX COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) S. SOL VENTS/OILS No. 1 2 3 4 5 6 7 Name Ethyl alcohol (Ethanol) Isopropyl alcohol (Isopro.
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION CANON INC. Printed in Japan REVISION 0 (FEB.
PRINTED IN JAPAN (IMPRIME AU JAPON) 0398S1.11-1 This publication is printed on 70% reprocessed paper ..
Ein wichtiger Punkt beim Kauf des Geräts Canon NP6621 (oder sogar vor seinem Kauf) ist das durchlesen seiner Bedienungsanleitung. Dies sollten wir wegen ein paar einfacher Gründe machen:
Wenn Sie Canon NP6621 noch nicht gekauft haben, ist jetzt ein guter Moment, um sich mit den grundliegenden Daten des Produkts bekannt zu machen. Schauen Sie zuerst die ersten Seiten der Anleitung durch, die Sie oben finden. Dort finden Sie die wichtigsten technischen Daten für Canon NP6621 - auf diese Weise prüfen Sie, ob das Gerät Ihren Wünschen entspricht. Wenn Sie tiefer in die Benutzeranleitung von Canon NP6621 reinschauen, lernen Sie alle zugänglichen Produktfunktionen kennen, sowie erhalten Informationen über die Nutzung. Die Informationen, die Sie über Canon NP6621 erhalten, werden Ihnen bestimmt bei der Kaufentscheidung helfen.
Wenn Sie aber schon Canon NP6621 besitzen, und noch keine Gelegenheit dazu hatten, die Bedienungsanleitung zu lesen, sollten Sie es aufgrund der oben beschriebenen Gründe machen. Sie erfahren dann, ob Sie die zugänglichen Funktionen richtig genutzt haben, aber auch, ob Sie keine Fehler begangen haben, die den Nutzungszeitraum von Canon NP6621 verkürzen könnten.
Jedoch ist die eine der wichtigsten Rollen, die eine Bedienungsanleitung für den Nutzer spielt, die Hilfe bei der Lösung von Problemen mit Canon NP6621. Sie finden dort fast immer Troubleshooting, also die am häufigsten auftauchenden Störungen und Mängel bei Canon NP6621 gemeinsam mit Hinweisen bezüglich der Arten ihrer Lösung. Sogar wenn es Ihnen nicht gelingen sollte das Problem alleine zu bewältigen, die Anleitung zeigt Ihnen die weitere Vorgehensweise – den Kontakt zur Kundenberatung oder dem naheliegenden Service.
