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... service manual consists of the following chapters: Chapter 1 General Description introduces the machine's features, specifications, names of operation used for the machine's fixing system. Chapter 2 Basic Operation explains how copies are operated, and shows how they may be disassembled/assembled and adjusted. Chapter...be installed using step-by -step basis. Chapter 9 Installation introduces requirements for the site of operation used for the machine's exposure system. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) i It also explains the timing at which...
... service manual consists of the following chapters: Chapter 1 General Description introduces the machine's features, specifications, names of operation used for the machine's fixing system. Chapter 2 Basic Operation explains how copies are operated, and shows how they may be disassembled/assembled and adjusted. Chapter...be installed using step-by -step basis. Chapter 9 Installation introduces requirements for the site of operation used for the machine's exposure system. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) i It also explains the timing at which...
Service Manual
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... D. Controlling the Pickup Motor 8-14 H. External Covers 8-21 C. Electrical System 8-33 CHAPTER 9 INSTALLATION I . MOVING THE MACHINE .......... 9-12 CHAPTER 10 MAINTENANCE AND SERVICING I . DURABLES AND CONSUMABLES 10-1 III. Storing the Cartridge with the Packaging Seal Removed 10...18 A. PERIODICALLY REPLACED PARTS 10-1 II. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) vii Outline of the Power Supply System 7-3 B. Copyboard Glass 7-16 D. Electrical System 7-21 CHAPTER 8 ADF I . Placing Copy Paper 9-9 III. SCHEDULED SERVICING ....... 10...
... D. Controlling the Pickup Motor 8-14 H. External Covers 8-21 C. Electrical System 8-33 CHAPTER 9 INSTALLATION I . MOVING THE MACHINE .......... 9-12 CHAPTER 10 MAINTENANCE AND SERVICING I . DURABLES AND CONSUMABLES 10-1 III. Storing the Cartridge with the Packaging Seal Removed 10...18 A. PERIODICALLY REPLACED PARTS 10-1 II. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) vii Outline of the Power Supply System 7-3 B. Copyboard Glass 7-16 D. Electrical System 7-21 CHAPTER 8 ADF I . Placing Copy Paper 9-9 III. SCHEDULED SERVICING ....... 10...
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Copier 1-2 B. Cross Section 1-13 IV. Outline 1-20 COPYRIGHT © 1999 CANON INC. ADF 1-8 III. 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. USING THE MACHINE 1-15 A. SPECIFICATIONS 1-2 A. NAMES OF PARTS 1-10 A. FEATURES 1-1 II. I. ROUTINE MAINTENANCE BY THE USER 1-17 VI. Control Panel 1-15 V. External View 1-10 B. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Copier 1-2 B. Cross Section 1-13 IV. Outline 1-20 COPYRIGHT © 1999 CANON INC. ADF 1-8 III. 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. USING THE MACHINE 1-15 A. SPECIFICATIONS 1-2 A. NAMES OF PARTS 1-10 A. FEATURES 1-1 II. I. ROUTINE MAINTENANCE BY THE USER 1-17 VI. Control Panel 1-15 V. External View 1-10 B. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
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... unit may be as large as A4 (LGL) or as small as a single entity (cartridge). ADF Type • Continuous copying is 0 sec (at 20°C room temperature), enabling speedy copying work . 6. FEATURES 1. Personal Copier with existing Canon machines). 3. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-1 multifeeder type). 7. COPYRIGHT © 1999...
... unit may be as large as A4 (LGL) or as small as a single entity (cartridge). ADF Type • Continuous copying is 0 sec (at 20°C room temperature), enabling speedy copying work . 6. FEATURES 1. Personal Copier with existing Canon machines). 3. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-1 multifeeder type). 7. COPYRIGHT © 1999...
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... to a jam. • Indicates the number of copies manually. Standard Mode Ratio: 100% Count: 1 Paper source: cassette Copy density: auto mode Starts copying. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-15 CHAPTER 1 GENERAL DESCRIPTION IV. USING THE MACHINE A. Flashes in response to standard mode. Control Panel [1] [2] [3] [4] [5] [6] [7] [8] [9] [15] [14] [13] [12...
... to a jam. • Indicates the number of copies manually. Standard Mode Ratio: 100% Count: 1 Paper source: cassette Copy density: auto mode Starts copying. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-15 CHAPTER 1 GENERAL DESCRIPTION IV. USING THE MACHINE A. Flashes in response to standard mode. Control Panel [1] [2] [3] [4] [5] [6] [7] [8] [9] [15] [14] [13] [12...
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...the cover with a moist cloth (with water or mild detergent solution); Caution: • You cannot start feeder cleaning mode while the machine is making copies or if an error exists. • The auto power-off mechanism does not operate while feeder cleaning mode is being executed. Feeding...JAPON) 1-17 Soiled Images a. Zoom Figure 1-501 2) Place about 10 sheets of the ADF. 3) Press the Copy Start key. • Copy paper will indicate 'U6'. COPYRIGHT © 1999 CANON INC. then, dry wipe it. b. ROUTINE MAINTENANCE BY THE USER Instruct the user to clean the following if ...
...the cover with a moist cloth (with water or mild detergent solution); Caution: • You cannot start feeder cleaning mode while the machine is making copies or if an error exists. • The auto power-off mechanism does not operate while feeder cleaning mode is being executed. Feeding...JAPON) 1-17 Soiled Images a. Zoom Figure 1-501 2) Place about 10 sheets of the ADF. 3) Press the Copy Start key. • Copy paper will indicate 'U6'. COPYRIGHT © 1999 CANON INC. then, dry wipe it. b. ROUTINE MAINTENANCE BY THE USER Instruct the user to clean the following if ...
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... : Flow of copy paper Cassette : Rotation of the following seven steps: Step 1 Primary charging (AC + negative DC) Step 2 Image exposure Step 3 Development (AC + negative DC) Step 4 Transfer (negative DC) Step 5 Separation (curvature separation + static eliminator; CANON PC800s/900s REV.0...AU JAPON) 1-21 Primary charging 2. Transfer Manual feed 5. CHAPTER 1 GENERAL DESCRIPTION The machine's image formation process consists of the photosensitive drum Figure 1-602 COPYRIGHT © 1999 CANON INC. Image exposure 7. Drum cleaning 3. positive DC) Step 6 Fixing Step 7 Drum...
... : Flow of copy paper Cassette : Rotation of the following seven steps: Step 1 Primary charging (AC + negative DC) Step 2 Image exposure Step 3 Development (AC + negative DC) Step 4 Transfer (negative DC) Step 5 Separation (curvature separation + static eliminator; CANON PC800s/900s REV.0...AU JAPON) 1-21 Primary charging 2. Transfer Manual feed 5. CHAPTER 1 GENERAL DESCRIPTION The machine's image formation process consists of the photosensitive drum Figure 1-602 COPYRIGHT © 1999 CANON INC. Image exposure 7. Drum cleaning 3. positive DC) Step 6 Fixing Step 7 Drum...
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...machine consists of four functional blocks: pickup/feeding system, exposure system, image formation system, and control system. Control system Control panel Exposure system Copyboard Control circuit Original illuminating block Optical block Primary charging roller Image formation system Drum 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. CHAPTER 2...
...machine consists of four functional blocks: pickup/feeding system, exposure system, image formation system, and control system. Control system Control panel Exposure system Copyboard Control circuit Original illuminating block Optical block Primary charging roller Image formation system Drum 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. CHAPTER 2...
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ture of the lamp increases the tempera- 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. II : By the time the Copy Start key is pressed or the power switch is reduced to and stopped...
ture of the lamp increases the tempera- 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. II : By the time the Copy Start key is pressed or the power switch is reduced to and stopped...
Service Manual
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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- The microprocessor (Q900) on the composite power supply PCB varies the DC bias control signal (PDC_PWM) to a positive ...by the cleaning bias from the transfer roller. Copy Start key ON STBY INTR SCFW SCRV SCFW 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). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN ...
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- The microprocessor (Q900) on the composite power supply PCB varies the DC bias control signal (PDC_PWM) to a positive ...by the cleaning bias from the transfer roller. Copy Start key ON STBY INTR SCFW SCRV SCFW 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). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN ...
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...2sec (approx.) 0.8sec (approx.) 0.7sec (approx.) 1.6sec(approx.) Figure 4-106 4-10 COPYRIGHT © 1999 CANON INC. Correcting the Transfer Bias Voltage Level (ATVC control) The machine automatically corrects the application voltage level of the transfer bias is pressed. In response to the signal, the microprocessor ... signal (T_FW_S), and varies the transfer bias applied to the transfer charging roller during initial rotation executed each time the Copy Start key is switched by the transfer bias ON signal (serial signal) generated by the deterioration of the transfer roller ...
...2sec (approx.) 0.8sec (approx.) 0.7sec (approx.) 1.6sec(approx.) Figure 4-106 4-10 COPYRIGHT © 1999 CANON INC. Correcting the Transfer Bias Voltage Level (ATVC control) The machine automatically corrects the application voltage level of the transfer bias is pressed. In response to the signal, the microprocessor ... signal (T_FW_S), and varies the transfer bias applied to the transfer charging roller during initial rotation executed each time the Copy Start key is switched by the transfer bias ON signal (serial signal) generated by the deterioration of the transfer roller ...
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... save mode -75V -2V*1 -3V*2 Photo mode +15V -2V*1 -3V*2 *1: 120 V model *2: 220 / 240 V model Table 4-105 Relationship between Copying Mode and Voltage Correction Level Figures 4-109 through -112 show the changes in the DC bias occurring as a result of changes in AE mode according... lever is set during auto density correction and how the density adjusting lever is set . CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) SW101 Figure 4-108 If the machine is selected. CHAPTER 4 IMAGE FORMATION SYSTEM 4. The density correction switch (SW101) affects both...
... save mode -75V -2V*1 -3V*2 Photo mode +15V -2V*1 -3V*2 *1: 120 V model *2: 220 / 240 V model Table 4-105 Relationship between Copying Mode and Voltage Correction Level Figures 4-109 through -112 show the changes in the DC bias occurring as a result of changes in AE mode according... lever is set during auto density correction and how the density adjusting lever is set . CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) SW101 Figure 4-108 If the machine is selected. CHAPTER 4 IMAGE FORMATION SYSTEM 4. The density correction switch (SW101) affects both...
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Outline The machine is more or less uniform in density by varying the DC component of the developing bias according to control the DC component of Originals 1. 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 the original. CHAPTER 4 IMAGE FORMATION SYSTEM F. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (...
Outline The machine is more or less uniform in density by varying the DC component of the developing bias according to control the DC component of Originals 1. 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 the original. CHAPTER 4 IMAGE FORMATION SYSTEM F. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (...
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... in Reduce mode A: Position of the side blanking lamp in Reduce mode Figure 4-122 COPYRIGHT © 1999 CANON INC. 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 Direct and Reduce mode B: Position...
... in Reduce mode A: Position of the side blanking lamp in Reduce mode Figure 4-122 COPYRIGHT © 1999 CANON INC. 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 Direct and Reduce mode B: Position...
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... cartridge is fit into the machine and the machine's top unit is provided to strong light for a long time, the photosensitive drum can develop photo memory, which can cause white spots or black bands on copies. As in a single container referred to expose images. CANON PC800s/900s REV.0 AUG. ...1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-23 Drum Cover Shutter If exposed to protect the photosensitive drum from the machine, light makes its way through the opening...
... cartridge is fit into the machine and the machine's top unit is provided to strong light for a long time, the photosensitive drum can develop photo memory, which can cause white spots or black bands on copies. As in a single container referred to expose images. CANON PC800s/900s REV.0 AUG. ...1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-23 Drum Cover Shutter If exposed to protect the photosensitive drum from the machine, light makes its way through the opening...
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...it to rotate it in the direction in a dark place, it , use paper, lint-free or otherwise. 3. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Be sure to a level at which it will... sunlight. 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 shutter 3)... spring used to apply a developing bias to 30000 lux. 4-24 COPYRIGHT © 1999 CANON INC. If exposed to light for 5 min in which it rotates when making...
...it to rotate it in the direction in a dark place, it , use paper, lint-free or otherwise. 3. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Be sure to a level at which it will... sunlight. 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 shutter 3)... spring used to apply a developing bias to 30000 lux. 4-24 COPYRIGHT © 1999 CANON INC. If exposed to light for 5 min in which it rotates when making...
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CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 4 IMAGE FORMATION SYSTEM C. Blank Exposure 1. 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....") 5) 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.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 4 IMAGE FORMATION SYSTEM C. Blank Exposure 1. 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....") 5) 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.
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..., feeding, and fixing assemblies to monitor the movement of the image on the photosensitive drum; The machine is equipped with four sensors used to reach the copy tray. Notation Name PS3 Delivery sensor Remarks PS4 Vertical path roller paper sensor PS5 Single-feeder paper sensor...only Q751 Pre-registration roller paper sensor Table 5-101 COPYRIGHT © 1999 CANON INC. CHAPTER 5 PICK-UP/FEEDING SYSTEM I. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-1 Outline The machine moves paper using a center reference method, in which paper is moved in...
..., feeding, and fixing assemblies to monitor the movement of the image on the photosensitive drum; The machine is equipped with four sensors used to reach the copy tray. Notation Name PS3 Delivery sensor Remarks PS4 Vertical path roller paper sensor PS5 Single-feeder paper sensor...only Q751 Pre-registration roller paper sensor Table 5-101 COPYRIGHT © 1999 CANON INC. CHAPTER 5 PICK-UP/FEEDING SYSTEM I. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-1 Outline The machine moves paper using a center reference method, in which paper is moved in...
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... edge of the main motor switched by a spring clutch, control ring, pickup clutch solenoid (SL1), and cassette pickup solenoid (SL5). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-3 Controlling the Pickup Roller 1. CHAPTER 5 PICK-UP/FEEDING ...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. Outline The machine has three types of pickup rollers, i.e., cassette pickup roller, multifeeder pickup roller, and...
... edge of the main motor switched by a spring clutch, control ring, pickup clutch solenoid (SL1), and cassette pickup solenoid (SL5). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-3 Controlling the Pickup Roller 1. CHAPTER 5 PICK-UP/FEEDING ...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. Outline The machine has three types of pickup rollers, i.e., cassette pickup roller, multifeeder pickup roller, and...
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Figure 5-105 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-5 Re-Pickup (cassette pickup) If the vertical path roller paper sensor (PS4) does not detect copy paper within 0.5 sec after the pickup clutch solenoid (SL1) has turned don. II : ... pickup solenoid (SL5) turns on . CHAPTER 5 PICK-UP/FEEDING SYSTEM 3. 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...
Figure 5-105 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-5 Re-Pickup (cassette pickup) If the vertical path roller paper sensor (PS4) does not detect copy paper within 0.5 sec after the pickup clutch solenoid (SL1) has turned don. II : ... pickup solenoid (SL5) turns on . CHAPTER 5 PICK-UP/FEEDING SYSTEM 3. 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...