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... provides tables of periodically replaced parts and consumables/durables and scheduled servicing charts. Chapter 2 Basic Operation explains how copies are operated, and shows how they may be disassembled/assembled and adjusted. Chapter 10 Maintenance and Servicing provides tables...Appendix contains a general timing chart and general circuit diagrams. COPYRIGHT © 1999 CANON INC. This service manual consists of the following chapters: Chapter 1 General Description introduces the machine's features, specifications, names of parts, and how originals are reproduced. Chapter 9 ...
... provides tables of periodically replaced parts and consumables/durables and scheduled servicing charts. Chapter 2 Basic Operation explains how copies are operated, and shows how they may be disassembled/assembled and adjusted. Chapter 10 Maintenance and Servicing provides tables...Appendix contains a general timing chart and general circuit diagrams. COPYRIGHT © 1999 CANON INC. This service manual consists of the following chapters: Chapter 1 General Description introduces the machine's features, specifications, names of parts, and how originals are reproduced. Chapter 9 ...
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... II. MOVING THE MACHINE .......... 9-12 CHAPTER 10 MAINTENANCE AND SERVICING I . SCHEDULED SERVICING ....... 10-1 IV. Copyboard Glass 7-16 D. DISASSEMBLY/ASSEMBLY ..... 8-18 A. Drive System 8-23 D. SELECTING A SITE 9-1 II. PERIODICALLY REPLACED PARTS 10-1 II. DURABLES AND CONSUMABLES 10-1 III. Storing the Cartridge with the Packaging Seal Removed 10-3 COPYRIGHT © 1999 CANON INC. Storing and...
... II. MOVING THE MACHINE .......... 9-12 CHAPTER 10 MAINTENANCE AND SERVICING I . SCHEDULED SERVICING ....... 10-1 IV. Copyboard Glass 7-16 D. DISASSEMBLY/ASSEMBLY ..... 8-18 A. Drive System 8-23 D. SELECTING A SITE 9-1 II. PERIODICALLY REPLACED PARTS 10-1 II. DURABLES AND CONSUMABLES 10-1 III. Storing the Cartridge with the Packaging Seal Removed 10-3 COPYRIGHT © 1999 CANON INC. Storing and...
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Copier 1-2 B. Outline 1-20 COPYRIGHT © 1999 CANON INC. Cross Section 1-13 IV. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) FEATURES 1-1 II. NAMES OF PARTS 1-10 A. ADF 1-8 III. SPECIFICATIONS 1-2 A. Control Panel 1-15 V. USING THE MACHINE 1-15 A. IMAGE FORMATION 1-20 A. CHAPTER 1 GENERAL DESCRIPTION This chapter provides specifications of the machine, instructions on how to operate the machine, and an outline of copying process. I. External View 1-10 B. ROUTINE MAINTENANCE BY THE USER 1-17 VI.
Copier 1-2 B. Outline 1-20 COPYRIGHT © 1999 CANON INC. Cross Section 1-13 IV. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) FEATURES 1-1 II. NAMES OF PARTS 1-10 A. ADF 1-8 III. SPECIFICATIONS 1-2 A. Control Panel 1-15 V. USING THE MACHINE 1-15 A. IMAGE FORMATION 1-20 A. CHAPTER 1 GENERAL DESCRIPTION This chapter provides specifications of the machine, instructions on how to operate the machine, and an outline of copying process. I. External View 1-10 B. ROUTINE MAINTENANCE BY THE USER 1-17 VI.
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...A4 (LGL) and A5 (STMT) (*Using the universal cassette). • In manual feed mode, paper may be opened to 1/1000 compared with existing Canon machines). 3. Large Paper Source • The source of paper (500-sheet cassette + multifeeder; All-in-One Cartridge for Simple Maintenance • The photosensitive...Copier with the use of a roller charging method has resulted in 1% increments. 2. Various Paper Sizes • The paper may expect quality copy images at all times as long as a business card. 5. The user may be between 70% and 141% in a considerable reduction of the ADF....
...A4 (LGL) and A5 (STMT) (*Using the universal cassette). • In manual feed mode, paper may be opened to 1/1000 compared with existing Canon machines). 3. Large Paper Source • The source of paper (500-sheet cassette + multifeeder; All-in-One Cartridge for Simple Maintenance • The photosensitive...Copier with the use of a roller charging method has resulted in 1% increments. 2. Various Paper Sizes • The paper may expect quality copy images at all times as long as a business card. 5. The user may be between 70% and 141% in a considerable reduction of the ADF....
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... and off the power. Remarks Indicates the selected copy density mode. Control Panel [1] [2] [3] [4] [5] [6] [7] [8] [9] [15] [14] [13] [12] [11] [10] No. Indicates the selected cassette/ manual feed tray.If there is no paper loaded, it flashes. Turns on when indicating a ratio. 100 (max.; USING THE MACHINE A. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN...
... and off the power. Remarks Indicates the selected copy density mode. Control Panel [1] [2] [3] [4] [5] [6] [7] [8] [9] [15] [14] [13] [12] [11] [10] No. Indicates the selected cassette/ manual feed tray.If there is no paper loaded, it flashes. Turns on when indicating a ratio. 100 (max.; USING THE MACHINE A. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN...
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...Cleaning Mode 1) Turn on the original tray of the ADF. 3) Press the Copy Start key. • Copy paper will indicate 'U6'. Zoom Figure 1-501 2) Place about 10 sheets of blank copy paper (A4/LTR) on the machine, and hold down the Copy Density Mode Selection key for 4 sec or more. • The count/...ratio indicator will be soiled or copy paper tends to end the mode. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (...
...Cleaning Mode 1) Turn on the original tray of the ADF. 3) Press the Copy Start key. • Copy paper will indicate 'U6'. Zoom Figure 1-501 2) Place about 10 sheets of blank copy paper (A4/LTR) on the machine, and hold down the Copy Density Mode Selection key for 4 sec or more. • The count/...ratio indicator will be soiled or copy paper tends to end the mode. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (...
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... REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-21 Development Delivery 6. CHAPTER 1 GENERAL DESCRIPTION The machine's image formation process consists of the photosensitive drum Figure 1-602 COPYRIGHT © 1999 CANON INC. Separation Registration : Flow of copy paper Cassette : Rotation of the following seven steps: Step 1 Primary charging (AC + negative DC) Step 2 Image...
... REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-21 Development Delivery 6. CHAPTER 1 GENERAL DESCRIPTION The machine's image formation process consists of the photosensitive drum Figure 1-602 COPYRIGHT © 1999 CANON INC. Separation Registration : Flow of copy paper Cassette : Rotation of the following seven steps: Step 1 Primary charging (AC + negative DC) Step 2 Image...
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... 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. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 2-1 Functional Construction The machine consists of four functional blocks: pickup...
... 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. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 2-1 Functional Construction The machine consists of four functional blocks: pickup...
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...movement of the scanner is reduced to 6-cpm copying speed SCRV SCFW SCRV SCFW SCRV SCFW SCRV LSTR STBY ,,, Check timing by a thermistor (TH2); CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Controlling the Copying Speed The machine uses a halogen lamp for scanning, and ...the heat of the copyboard. if its reading reaches 37.5°C or higher, the copying speed is turned off to prevent...
...movement of the scanner is reduced to 6-cpm copying speed SCRV SCFW SCRV SCFW SCRV SCFW SCRV LSTR STBY ,,, Check timing by a thermistor (TH2); CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Controlling the Copying Speed The machine uses a halogen lamp for scanning, and ...the heat of the copyboard. if its reading reaches 37.5°C or higher, the copying speed is turned off to prevent...
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...SCRV LSTR STBY Main motor (M1) Scanning lamp (LA1) Primary DC bias Primary AC bias -400V -625V Figure 4-104 COPYRIGHT © 1999 CANON INC. copy image area (-400 V). The microprocessor (Q900) on the composite power supply PCB varies the DC bias control signal (PDC_PWM) to a positive ... from the transfer roller. CHAPTER 4 IMAGE FORMATION SYSTEM d. The level of the DC bias. (See Table 4-102.) Reference: The machine applies a DC bias over a non-copy image area (between the copy image area (-625 V) and the non- CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-7
...SCRV LSTR STBY Main motor (M1) Scanning lamp (LA1) Primary DC bias Primary AC bias -400V -625V Figure 4-104 COPYRIGHT © 1999 CANON INC. copy image area (-400 V). The microprocessor (Q900) on the composite power supply PCB varies the DC bias control signal (PDC_PWM) to a positive ... from the transfer roller. CHAPTER 4 IMAGE FORMATION SYSTEM d. The level of the DC bias. (See Table 4-102.) Reference: The machine applies a DC bias over a non-copy image area (between the copy image area (-625 V) and the non- CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-7
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... DC bias On signal (T_REV_ON*) to the transfer charging roller during initial rotation executed each time the Copy Start key is executed The polarity of the readings. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 4 IMAGE FORMATION SYSTEM ...c. Correcting the Transfer Bias Voltage Level (ATVC control) The machine automatically corrects the application voltage level of the transfer bias to the transfer roller. (See Table 4-103.) Copy ...
... DC bias On signal (T_REV_ON*) to the transfer charging roller during initial rotation executed each time the Copy Start key is executed The polarity of the readings. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 4 IMAGE FORMATION SYSTEM ...c. Correcting the Transfer Bias Voltage Level (ATVC control) The machine automatically corrects the application voltage level of the transfer bias to the transfer roller. (See Table 4-103.) Copy ...
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...; Setting of the density adjusting lever (in manual adjustment mode) • Output of the AE sensor (in automatic control mode) • Setting of copy mode (toner save mode, photo mode) • Setting of the density correction switch (SW101) The density correction switch (SW101) mounted on the DC ... the sensitivity of the Developing DC Bias The DC bias control signal (BIAS_PWM) is selected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) SW101 Figure 4-108 If the machine is not equipped with a density correction switch (SW101), the image density changes in AE mode...
...; Setting of the density adjusting lever (in manual adjustment mode) • Output of the AE sensor (in automatic control mode) • Setting of copy mode (toner save mode, photo mode) • Setting of the density correction switch (SW101) The density correction switch (SW101) mounted on the DC ... the sensitivity of the Developing DC Bias The DC bias control signal (BIAS_PWM) is selected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) SW101 Figure 4-108 If the machine is not equipped with a density correction switch (SW101), the image density changes in AE mode...
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The AE mechanism enables production of copies free of fogging as long as the original is equipped with an auto density adjustment (AE) mechanism designed to the density of Originals 1. Measuring the Density of the original. CHAPTER 4 IMAGE FORMATION SYSTEM F. CANON PC800s/900s REV.0 AUG. 1999 ...Q900) Developing DCON signal Serial communication DC controller PCB Figure 4-113 Composite power supply PCB 4-16 COPYRIGHT © 1999 CANON INC. Outline The machine is more or less uniform in density by varying the DC component of the developing bias according to control the DC ...
The AE mechanism enables production of copies free of fogging as long as the original is equipped with an auto density adjustment (AE) mechanism designed to the density of Originals 1. Measuring the Density of the original. CHAPTER 4 IMAGE FORMATION SYSTEM F. CANON PC800s/900s REV.0 AUG. 1999 ...Q900) Developing DCON signal Serial communication DC controller PCB Figure 4-113 Composite power supply PCB 4-16 COPYRIGHT © 1999 CANON INC. Outline The machine is more or less uniform in density by varying the DC component of the developing bias according to control the DC ...
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... the side blanking lamp in Direct and Reduce mode B: Position of excess toner when making reduced copies. 2. CHAPTER 4 IMAGE FORMATION SYSTEM G. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-21 Outline The machine is moved in relation to prevent adhesion of the side blanking lamp in reduce mode, the... lens shift detecting shaft. Controlling the Side Blanking Mechanism 1. Operations To blank out the non-image area in Reduce mode Figure 4-122 COPYRIGHT © 1999 CANON INC.
... the side blanking lamp in Direct and Reduce mode B: Position of excess toner when making reduced copies. 2. CHAPTER 4 IMAGE FORMATION SYSTEM G. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-21 Outline The machine is moved in relation to prevent adhesion of the side blanking lamp in reduce mode, the... lens shift detecting shaft. Controlling the Side Blanking Mechanism 1. Operations To blank out the non-image area in Reduce mode Figure 4-122 COPYRIGHT © 1999 CANON INC.
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.... To prevent photo memory, the machine is closed. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-23 Drum Cover Shutter If exposed to...drum Cleaning blade Drum cover shutter Developing cylinder Figure 4-201 a. Do not open when the cartridge is fit into the machine and the machine's top unit is equipped with a drum cover shutter. b. It is designed to expose images. Light-Blocking Shutter When...time, the photosensitive drum can develop photo memory, which can cause white spots or black bands on copies. CHAPTER 4 IMAGE FORMATION SYSTEM A. Cartridge 1.
.... To prevent photo memory, the machine is closed. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-23 Drum Cover Shutter If exposed to...drum Cleaning blade Drum cover shutter Developing cylinder Figure 4-201 a. Do not open when the cartridge is fit into the machine and the machine's top unit is equipped with a drum cover shutter. b. It is designed to expose images. Light-Blocking Shutter When...time, the photosensitive drum can develop photo memory, which can cause white spots or black bands on copies. CHAPTER 4 IMAGE FORMATION SYSTEM A. Cartridge 1.
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...will cause no practical problem. If exposed to light for 5 min in which it rotates when making copies. However, avoid exposing it , use paper, lint-free or otherwise. 3. Caution: 1. Be ...left alone for an appreciable time, the images will be sure to rotate the drum, be affected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 4 IMAGE FORMATION SYSTEM ...Cleaning the Drum Caution: As a rule, do not touch or clean the photosensitive drum. 1) Open the machine's top unit, and take out the cartridge. 2) Turn over the cartridge, and open the drum cover ...
...will cause no practical problem. If exposed to light for 5 min in which it rotates when making copies. However, avoid exposing it , use paper, lint-free or otherwise. 3. Caution: 1. Be ...left alone for an appreciable time, the images will be sure to rotate the drum, be affected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 4 IMAGE FORMATION SYSTEM ...Cleaning the Drum Caution: As a rule, do not touch or clean the photosensitive drum. 1) Open the machine's top unit, and take out the cartridge. 2) Turn over the cartridge, and open the drum cover ...
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CHAPTER 4 IMAGE FORMATION SYSTEM C. Removing the Blanking Exposure Unit 1) Set the machine to the maximum ratio (141%) as follows: • Turn on the power, and select a default ratio of 141%. • Press the Copy Start key. • When the lens has moved to the farthest left, turn off the power. • ... Remove the composite power supply PCB. (See Chapter 7.III.E.2."Removing the Composite Power Supply PCB.") 6) Remove the two screws [1]. [1] Figure 4-203 4-26 COPYRIGHT © 1999 CANON INC. Blank Exposure 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4 IMAGE FORMATION SYSTEM C. Removing the Blanking Exposure Unit 1) Set the machine to the maximum ratio (141%) as follows: • Turn on the power, and select a default ratio of 141%. • Press the Copy Start key. • When the lens has moved to the farthest left, turn off the power. • ... Remove the composite power supply PCB. (See Chapter 7.III.E.2."Removing the Composite Power Supply PCB.") 6) Remove the two screws [1]. [1] Figure 4-203 4-26 COPYRIGHT © 1999 CANON INC. Blank Exposure 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
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...the movement of the pickup/feeding path, and is then moved through the transfer, separation, feeding, and fixing assemblies to reach the copy tray. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-1 From the cassette, multifeeder, or single-feeder..., copy paper is picked up and is equipped with a cassette, multifeeder, and single-feeder as the source of the image on the photosensitive drum; The machine is controlled by the ...
...the movement of the pickup/feeding path, and is then moved through the transfer, separation, feeding, and fixing assemblies to reach the copy tray. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-1 From the cassette, multifeeder, or single-feeder..., copy paper is picked up and is equipped with a cassette, multifeeder, and single-feeder as the source of the image on the photosensitive drum; The machine is controlled by the ...
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...Controlling the Pickup Roller 1. Controlling the Cassette Pickup Roller The cassette pickup roller is driven at any one time.) 2. Outline The machine has three types of pickup rollers, i.e., cassette pickup roller, multifeeder pickup roller, and single-feeder pickup roller, and each of ...pickup roller. Cassette pickup solenoid drive signal (CPUSD*) Pickup clutch solenoid drive signal (PUSLD*) Pickup clutch SL5 Copy paper Cassette pickup rollers Figure 5-103 (Multifeeder type) COPYRIGHT © 1999 CANON INC. CHAPTER 5 PICK-UP/FEEDING SYSTEM B. ing the drive to move to engage.
...Controlling the Pickup Roller 1. Controlling the Cassette Pickup Roller The cassette pickup roller is driven at any one time.) 2. Outline The machine has three types of pickup rollers, i.e., cassette pickup roller, multifeeder pickup roller, and single-feeder pickup roller, and each of ...pickup roller. Cassette pickup solenoid drive signal (CPUSD*) Pickup clutch solenoid drive signal (PUSLD*) Pickup clutch SL5 Copy paper Cassette pickup rollers Figure 5-103 (Multifeeder type) COPYRIGHT © 1999 CANON INC. CHAPTER 5 PICK-UP/FEEDING SYSTEM B. ing the drive to move to engage.
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...of time after the pickup clutch solenoid (SL1) turns on. Figure 5-105 COPYRIGHT © 1999 CANON INC. If the vertical path roller paper sensor does not detect copy paper after re-pickup, the machine will indicate " " in the count/ratio indicator in the control panel. (This mechanism substitutes ...a paper detecting mechanism.) Copy Start key ON STBY INTR SCFW SCRV LSTR STBY Main motor (M1) ...
...of time after the pickup clutch solenoid (SL1) turns on. Figure 5-105 COPYRIGHT © 1999 CANON INC. If the vertical path roller paper sensor does not detect copy paper after re-pickup, the machine will indicate " " in the count/ratio indicator in the control panel. (This mechanism substitutes ...a paper detecting mechanism.) Copy Start key ON STBY INTR SCFW SCRV LSTR STBY Main motor (M1) ...