Service Manual
Page 2
... CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER. COPYRIGHT © 1999 CANON INC. Printed in Japan Imprimé au Japon Use of this manual should be strictly supervised to avoid disclosure of confidential information. Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION...
... CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER. COPYRIGHT © 1999 CANON INC. Printed in Japan Imprimé au Japon Use of this manual should be strictly supervised to avoid disclosure of confidential information. Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION...
Service Manual
Page 3
... Chapter 9 Installation introduces requirements for the site of installation, and shows how the machine may be disassembled/assembled and adjusted. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) i Chapter 6 Fixing System discusses the principles of ... adjustments, and problem identification (image fault/malfunction). Chapter 2 Basic Operation explains how copies are reproduced. INTRODUCTION This service manual has been prepared for the PC800/900 Series machines, providing basic information used for servicing the machines in relation to ensure...
... Chapter 9 Installation introduces requirements for the site of installation, and shows how the machine may be disassembled/assembled and adjusted. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) i Chapter 6 Fixing System discusses the principles of ... adjustments, and problem identification (image fault/malfunction). Chapter 2 Basic Operation explains how copies are reproduced. INTRODUCTION This service manual has been prepared for the PC800/900 Series machines, providing basic information used for servicing the machines in relation to ensure...
Service Manual
Page 4
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) The following rules apply throughout this Service Manual and all cases, the internal mechanisms of Service Information bulletins. In the digital circuits, '1' is used to indicate that the voltage level of a ... to have a good understanding of the contents of the DC controller PCB to the timing of the electric sig- The descriptions in this Service Manual are subject to change without notice for product improvement or other reasons, and major changes will be communicated in the form of a microprocessor cannot...
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) The following rules apply throughout this Service Manual and all cases, the internal mechanisms of Service Information bulletins. In the digital circuits, '1' is used to indicate that the voltage level of a ... to have a good understanding of the contents of the DC controller PCB to the timing of the electric sig- The descriptions in this Service Manual are subject to change without notice for product improvement or other reasons, and major changes will be communicated in the form of a microprocessor cannot...
Service Manual
Page 5
... Direct 12 12 12 10 10 10 10 10 13 13 12 12 13 10 13 13 COPYRIGHT © 1999 CANON INC. Model PC860 PC880 PC890 PC920 PC920 PC920 PC920 PC921 PC940 PC941 PC950 PC950 PC950 PC960 PC980 PC981 Type code TYA TZA UAA PUD PUE PUH TVB TVC TVD TVE PUF... PUG TVF TVG TVH TVJ Multi- Be sure to have a good understanding of the difference from model to model before referring to this manual. • This service manual covers the models shown in question is available. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) iii
... Direct 12 12 12 10 10 10 10 10 13 13 12 12 13 10 13 13 COPYRIGHT © 1999 CANON INC. Model PC860 PC880 PC890 PC920 PC920 PC920 PC920 PC921 PC940 PC941 PC950 PC950 PC950 PC960 PC980 PC981 Type code TYA TZA UAA PUD PUE PUH TVB TVC TVD TVE PUF... PUG TVF TVG TVH TVJ Multi- Be sure to have a good understanding of the difference from model to model before referring to this manual. • This service manual covers the models shown in question is available. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) iii
Service Manual
Page 13
... with the use of a roller charging method has resulted in a considerable reduction of ozone: 0.01 ppm or less on . 4. Personal Copier with existing Canon machines). 3. ADF Type • Continuous copying is 0 sec (at maximum (1/100 to make jam removal easy. 8. Various Paper Sizes • The... can choose either a default enlargement/reduction ratio or any ratio between A4 (LGL) and A5 (STMT) (*Using the universal cassette). • In manual feed mode, paper may be between 70% and 141% in -One Cartridge for Simple Maintenance • The photosensitive drum, toner case, charging roller,...
... with the use of a roller charging method has resulted in a considerable reduction of ozone: 0.01 ppm or less on . 4. Personal Copier with existing Canon machines). 3. ADF Type • Continuous copying is 0 sec (at maximum (1/100 to make jam removal easy. 8. Various Paper Sizes • The... can choose either a default enlargement/reduction ratio or any ratio between A4 (LGL) and A5 (STMT) (*Using the universal cassette). • In manual feed mode, paper may be between 70% and 141% in -One Cartridge for Simple Maintenance • The photosensitive drum, toner case, charging roller,...
Service Manual
Page 14
...drum (24-mm dia.) Table 1-201 Descriptions Indirect static reproduction Roller (direct charging) Slit (moving light source) Auto or manual Dry (toner projection) Cassette (1 pc.) Single-feeder (single-feeder type) Multifeeder (multifeeder type) Curvature separation + static eliminator ...Flat heater Blade Center reference (copyboard) Table 1-202 1-2 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Type Item Body Copyboard Source of light Lens Photosensitive medium...
...drum (24-mm dia.) Table 1-201 Descriptions Indirect static reproduction Roller (direct charging) Slit (moving light source) Auto or manual Dry (toner projection) Cassette (1 pc.) Single-feeder (single-feeder type) Multifeeder (multifeeder type) Curvature separation + static eliminator ...Flat heater Blade Center reference (copyboard) Table 1-202 1-2 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Type Item Body Copyboard Source of light Lens Photosensitive medium...
Service Manual
Page 15
...215; 210 mm)/LGL (216 × 356 mm) Inch/AB-configuration: 2R2E Inch-configuration: 3R1E 70% to 128 g/m2), tracing paper (SM-1, GNT80*2; A4R) Manual Feeder: Plain paper (52 to 141% (in 1% increments*1) 0 sec (at 20°C room temperature) 10 sec or less (at 20°C room temperature; A4R... (64 to 128 g/m2), colored paper, business card (200 g/m2 or less), recycled paper (64 to 80 g/m2; fixed)*6 Table 1-203 CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-3 Performance Item Original type Maximum original size Reproduction ratio Zoom Wait time First copy...
...215; 210 mm)/LGL (216 × 356 mm) Inch/AB-configuration: 2R2E Inch-configuration: 3R1E 70% to 128 g/m2), tracing paper (SM-1, GNT80*2; A4R) Manual Feeder: Plain paper (52 to 141% (in 1% increments*1) 0 sec (at 20°C room temperature) 10 sec or less (at 20°C room temperature; A4R... (64 to 128 g/m2), colored paper, business card (200 g/m2 or less), recycled paper (64 to 80 g/m2; fixed)*6 Table 1-203 CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-3 Performance Item Original type Maximum original size Reproduction ratio Zoom Wait time First copy...
Service Manual
Page 22
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) NAMES OF PARTS A. Copyboard Type [2] [6] [3] [5] [4] [1] Copyboard cover [2] Static eliminator cleaner [3] Manual feed tray [4] Right door [5] Cassette [6] Copyboard glass Figure 1-301 [4] [3] [5] [2] [1] [6] [1] Copy tray [2] Power cord connector [3] Open/close lever [4] Static eliminator [5] Copy density correction switch [6] Delivery guide plate Figure 1-302 1-10 COPYRIGHT © 1999 CANON INC. External View [1] 1. CHAPTER 1 GENERAL DESCRIPTION III.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) NAMES OF PARTS A. Copyboard Type [2] [6] [3] [5] [4] [1] Copyboard cover [2] Static eliminator cleaner [3] Manual feed tray [4] Right door [5] Cassette [6] Copyboard glass Figure 1-301 [4] [3] [5] [2] [1] [6] [1] Copy tray [2] Power cord connector [3] Open/close lever [4] Static eliminator [5] Copy density correction switch [6] Delivery guide plate Figure 1-302 1-10 COPYRIGHT © 1999 CANON INC. External View [1] 1. CHAPTER 1 GENERAL DESCRIPTION III.
Service Manual
Page 23
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-11 ADF Type [5] CHAPTER 1 GENERAL DESCRIPTION [1] [2] [4] [1] ADF [2] Manual feed tray [3] Right door [5] [3] [4] Cassette [5] Copyboard glass Figure 1-303 [6] [4] [7] [3] [2] [1] [1] Static eliminator cleaner [2] Delivery guide plate [3] Copy tray [4] Power cord connector [5] Open/close lever [6] Static eliminator [7] Copy density correction switch Figure 1-304 COPYRIGHT © 1999 CANON INC. 2.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-11 ADF Type [5] CHAPTER 1 GENERAL DESCRIPTION [1] [2] [4] [1] ADF [2] Manual feed tray [3] Right door [5] [3] [4] Cassette [5] Copyboard glass Figure 1-303 [6] [4] [7] [3] [2] [1] [1] Static eliminator cleaner [2] Delivery guide plate [3] Copy tray [4] Power cord connector [5] Open/close lever [6] Static eliminator [7] Copy density correction switch Figure 1-304 COPYRIGHT © 1999 CANON INC. 2.
Service Manual
Page 27
... Standard Mode Ratio: 100% Count: 1 Paper source: cassette Copy density: auto mode Starts copying. USING THE MACHINE A. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-15 Flashes in response to standard mode. Remarks Indicates... the selected copy density mode. continuous copying) Stops copying or returns copying mode to a jam. • Indicates the number of copies manually. Control Panel [1] [2] [3] [4] [5] [6] [7] [8] [9] [15] [14] [13] [12] [11] [10] No. Indicates the selected default ratio. ...
... Standard Mode Ratio: 100% Count: 1 Paper source: cassette Copy density: auto mode Starts copying. USING THE MACHINE A. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-15 Flashes in response to standard mode. Remarks Indicates... the selected copy density mode. continuous copying) Stops copying or returns copying mode to a jam. • Indicates the number of copies manually. Control Panel [1] [2] [3] [4] [5] [6] [7] [8] [9] [15] [14] [13] [12] [11] [10] No. Indicates the selected default ratio. ...
Service Manual
Page 28
Turns on when zoom mode is selected. Selects the cassette/ manual feed tray. CHAPTER 1 GENERAL DESCRIPTION No. Applies only to a model equipped with a zoom function. 1-16 COPYRIGHT © 1999 CANON INC. Selects/deselects zoom mode. Remarks May be between 70% and 141% in 1% increments. 14 Default ratio key Selects a default reproduction ratio...*2 12 Zoom key*2 13 Paper selection key*1 Description Sets the number of copies or a zoom ratio. Table 1-401 *1. Applies only to a multifeeder model. *2. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Turns on when zoom mode is selected. Selects the cassette/ manual feed tray. CHAPTER 1 GENERAL DESCRIPTION No. Applies only to a model equipped with a zoom function. 1-16 COPYRIGHT © 1999 CANON INC. Selects/deselects zoom mode. Remarks May be between 70% and 141% in 1% increments. 14 Default ratio key Selects a default reproduction ratio...*2 12 Zoom key*2 13 Paper selection key*1 Description Sets the number of copies or a zoom ratio. Table 1-401 *1. Applies only to a multifeeder model. *2. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Service Manual
Page 33
...; CHAPTER 1 GENERAL DESCRIPTION The machine's image formation process consists of the photosensitive drum Figure 1-602 COPYRIGHT © 1999 CANON INC. Drum cleaning 3. Image exposure 7. positive DC) Step 6 Fixing Step 7 Drum cleaning Static latent image formation block 1. Fixing 4. Transfer Manual feed 5. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-21
...; CHAPTER 1 GENERAL DESCRIPTION The machine's image formation process consists of the photosensitive drum Figure 1-602 COPYRIGHT © 1999 CANON INC. Drum cleaning 3. Image exposure 7. positive DC) Step 6 Fixing Step 7 Drum cleaning Static latent image formation block 1. Fixing 4. Transfer Manual feed 5. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-21
Service Manual
Page 37
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 2-1 Control system Control panel Exposure system Copyboard Control circuit Original illuminating block Optical... cleaning block Photosensitive drum Developing assembly Copy tray Feeding Fixing assembly/ delivery assembly Transfer/ separation Cassette Figure 2-101 Pickup control block Manual feed block Pickup/ feeding system COPYRIGHT © 1999 CANON INC. BASIC OPERATIONS A. Functional Construction The machine consists of four functional blocks: pickup/feeding system, exposure system, image formation system...
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 2-1 Control system Control panel Exposure system Copyboard Control circuit Original illuminating block Optical... cleaning block Photosensitive drum Developing assembly Copy tray Feeding Fixing assembly/ delivery assembly Transfer/ separation Cassette Figure 2-101 Pickup control block Manual feed block Pickup/ feeding system COPYRIGHT © 1999 CANON INC. BASIC OPERATIONS A. Functional Construction The machine consists of four functional blocks: pickup/feeding system, exposure system, image formation system...
Service Manual
Page 108
... control mode) • Setting of the Developing DC Bias The DC bias control signal (BIAS_PWM) is set during manual density adjustment. 4-14 COPYRIGHT © 1999 CANON INC. SW101 Figure 4-108 If the machine is not equipped with a density correction switch (SW101), the image density...auto density correction and how the density adjusting lever is selected. The density correction switch (SW101) affects both manual density adjustment and auto density adjustment (AE). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Controlling the Voltage Level of copy...
... control mode) • Setting of the Developing DC Bias The DC bias control signal (BIAS_PWM) is set during manual density adjustment. 4-14 COPYRIGHT © 1999 CANON INC. SW101 Figure 4-108 If the machine is not equipped with a density correction switch (SW101), the image density...auto density correction and how the density adjusting lever is selected. The density correction switch (SW101) affects both manual density adjustment and auto density adjustment (AE). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Controlling the Voltage Level of copy...
Service Manual
Page 109
...Center Left -300 -400 -500 Position of SW101 Right Center Left Developing bias DC component (V) AE Mode Figure 4-109 (SW101) Developing bias DC component (V) Manual Density Mode Figure 4-110 (SW101) Test sheet 0 Original Newspaper density Copy density adjusting lever 1 3.5 0 6.5 9 -100 -100 -200 -300 -... F5 -400 -500 F9 Developing bias DC component (V) AE Mode Figure 4-111 (Non-SW101) Developing bias DC component (V) Manual Density Mode Figure 4-112 (Non-SW101) COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-15
...Center Left -300 -400 -500 Position of SW101 Right Center Left Developing bias DC component (V) AE Mode Figure 4-109 (SW101) Developing bias DC component (V) Manual Density Mode Figure 4-110 (SW101) Test sheet 0 Original Newspaper density Copy density adjusting lever 1 3.5 0 6.5 9 -100 -100 -200 -300 -... F5 -400 -500 F9 Developing bias DC component (V) AE Mode Figure 4-111 (Non-SW101) Developing bias DC component (V) Manual Density Mode Figure 4-112 (Non-SW101) COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-15
Service Manual
Page 195
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS B. Control Panel 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 7-15 then, detach the control panel [7]. [2] [1] Figure 7-314 [6] [4] Move to the farthest right,... unit. 2) Remove the two screws [1], and detach [1] the front upper cover [2]. Move the copy density adjusting lever [5] to the right Lighter Darker Auto Exposure Manual Exposure Photo Timer Saver [3] [7] [5] Figure 7-315 COPYRIGHT © 1999 CANON INC. Caution: A flexible cable for the control panel is connected to the front upper cover.
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS B. Control Panel 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 7-15 then, detach the control panel [7]. [2] [1] Figure 7-314 [6] [4] Move to the farthest right,... unit. 2) Remove the two screws [1], and detach [1] the front upper cover [2]. Move the copy density adjusting lever [5] to the right Lighter Darker Auto Exposure Manual Exposure Photo Timer Saver [3] [7] [5] Figure 7-315 COPYRIGHT © 1999 CANON INC. Caution: A flexible cable for the control panel is connected to the front upper cover.
Service Manual
Page 244
This phenomenon is missing: • Cassette • Copy tray • Power cord • ADF auxiliary tray (ADF type only) • User's Manual • Manual feed tray (for some areas only) • Language label for cassette (included with universal cassette) • Language label for ADF (ADF type only) ... alone at least for one hour before starting to make sure that none is known as "condensation" and, in step 9. 9-2 COPYRIGHT © 1999 CANON INC. Shipping attachment [1] You will be storing the shipping attachment [1] inside the machine in copiers, can cause blank copies...
This phenomenon is missing: • Cassette • Copy tray • Power cord • ADF auxiliary tray (ADF type only) • User's Manual • Manual feed tray (for some areas only) • Language label for cassette (included with universal cassette) • Language label for ADF (ADF type only) ... alone at least for one hour before starting to make sure that none is known as "condensation" and, in step 9. 9-2 COPYRIGHT © 1999 CANON INC. Shipping attachment [1] You will be storing the shipping attachment [1] inside the machine in copiers, can cause blank copies...
Service Manual
Page 245
... type only) Protective member Caution: This step applies only if the manual feed tray is attached. Attach the manual feed tray that comes with the machine. (Multifeeder type only) Caution: This applies only if the manual feed tray comes packaged with the machine. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU...
... type only) Protective member Caution: This step applies only if the manual feed tray is attached. Attach the manual feed tray that comes with the machine. (Multifeeder type only) Caution: This applies only if the manual feed tray comes packaged with the machine. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU...
Service Manual
Page 254
... stored in which the shipping attachment is not too hot. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Step 1 2 3 4 5 Work Checks and remarks Turn on the power, and press the Default Ratio key to select the manual The count/ratio indicator will indicate ' '. then, press the...unit. [2] [1] 6 Detach the copy tray. 7 Press down on the marking on the machine's top unit to fully close lever found on the manual feed tray. Turn off the power switch, and disconnect the power plug from the outlet. CHAPTER 9 INSTALLATION III. MOVING THE MACHINE If you may ...
... stored in which the shipping attachment is not too hot. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Step 1 2 3 4 5 Work Checks and remarks Turn on the power, and press the Default Ratio key to select the manual The count/ratio indicator will indicate ' '. then, press the...unit. [2] [1] 6 Detach the copy tray. 7 Press down on the marking on the machine's top unit to fully close lever found on the manual feed tray. Turn off the power switch, and disconnect the power plug from the outlet. CHAPTER 9 INSTALLATION III. MOVING THE MACHINE If you may ...
Service Manual
Page 315
... can develop condensation if it has been brought from a cold place (e.g., warehouse) to cause feeding faults. Condensation on the lower roller of the manual feed assembly will cause dark images. c. Condensation on the scanner (glass, lens, mirror, reflecting plate) will reduce friction, causing pickup faults. ...dry wipe the parts in question. Condensation in from a cold to be cold (high OPC electrical resistance), not enabling good contrast. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Others When a machine is brought in the pickup/feeding assembly ...
... can develop condensation if it has been brought from a cold place (e.g., warehouse) to cause feeding faults. Condensation on the lower roller of the manual feed assembly will cause dark images. c. Condensation on the scanner (glass, lens, mirror, reflecting plate) will reduce friction, causing pickup faults. ...dry wipe the parts in question. Condensation in from a cold to be cold (high OPC electrical resistance), not enabling good contrast. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Others When a machine is brought in the pickup/feeding assembly ...