Service Manual
Page 38
...instructions of the program stored in advance and sends signals used to drive motors, solenoids, lamps, and other loads as needed. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Sensor DC controller PCB Q101 • Scanner home ...; Transfer charging roller • Static eliminator AE sensor PCB Thermistor • Scanner thermistor • Fixing thermistor Control panel Main motor Main driver PCB motor Solenoid • Pickup clutch solenoid • Registration clutch solenoid • Lens solenoid • Multifeeder pickup solenoid • Cassette...
...instructions of the program stored in advance and sends signals used to drive motors, solenoids, lamps, and other loads as needed. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Sensor DC controller PCB Q101 • Scanner home ...; Transfer charging roller • Static eliminator AE sensor PCB Thermistor • Scanner thermistor • Fixing thermistor Control panel Main motor Main driver PCB motor Solenoid • Pickup clutch solenoid • Registration clutch solenoid • Lens solenoid • Multifeeder pickup solenoid • Cassette...
Service Manual
Page 42
...main motor starts to be a fault in the main motor, and will find the condition to have fluctuations, the MLOCK signal goes '1'. The main motor driver PCB sends the constant speed state signal (MLOCK=0) to the DC controller PCB. Operations The main motor (M1) is a DC motor with a built-...in clock pulse generator, which generates clock pulses (MMCLK) in the display. 2-6 COPYRIGHT © 1999 CANON INC. When the main motor drive signal (MMD) from the DC controller circuit goes '1', the motor diver drive circuit turns on to the rotation of...
...main motor starts to be a fault in the main motor, and will find the condition to have fluctuations, the MLOCK signal goes '1'. The main motor driver PCB sends the constant speed state signal (MLOCK=0) to the DC controller PCB. Operations The main motor (M1) is a DC motor with a built-...in clock pulse generator, which generates clock pulses (MMCLK) in the display. 2-6 COPYRIGHT © 1999 CANON INC. When the main motor drive signal (MMD) from the DC controller circuit goes '1', the motor diver drive circuit turns on to the rotation of...
Service Manual
Page 45
... on. M2 Scanner/ lens drive motor Figure 2-107 See p. 3-7. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 2-9 COPYRIGHT © 1999 CANON INC. Primary charging roller Developing cylinder Transfer charging roller Static eliminator HVT board... M1 Main motor Main motor driver PCB Highvoltage circuit block +24V Microprocessor Communication with the composite power supply ...
... on. M2 Scanner/ lens drive motor Figure 2-107 See p. 3-7. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 2-9 COPYRIGHT © 1999 CANON INC. Primary charging roller Developing cylinder Transfer charging roller Static eliminator HVT board... M1 Main motor Main motor driver PCB Highvoltage circuit block +24V Microprocessor Communication with the composite power supply ...
Service Manual
Page 54
... plate Scanner home position signal (SCHP) Scanner home position sensor (PS1) J110-1 -2 -3 -4 -5 -6 J101-1 Figure 3-104 Q109 Motor driver circuit DC controller PCB 3-4 COPYRIGHT © 1999 CANON INC. when moving the scanner forward in Direct). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Outline The scanner is moved varies according...
... plate Scanner home position signal (SCHP) Scanner home position sensor (PS1) J110-1 -2 -3 -4 -5 -6 J101-1 Figure 3-104 Q109 Motor driver circuit DC controller PCB 3-4 COPYRIGHT © 1999 CANON INC. when moving the scanner forward in Direct). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Outline The scanner is moved varies according...
Service Manual
Page 57
... Scanner/Lens Drive Motor a. The timing at which the drive power (SC-COM) and pulses (SC-A, SCA*, SC-B, SC-B*) are generated is a 4-phase stepping motor. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-7 Outline The scanner/lens drive motor (M2) is controlled to turn on/ off the... its rotation. (Q101) DC controller PCB +24VU R399 J110 SC-COM SC-COM Microprocessor A A* B B* Current switching signal 1 Current switching signal 2 Current switching signal 3 (Q109) Motor driver circuit SC-A SC-A* SC-B SC-B* M2 COPYRIGHT © 1999...
... Scanner/Lens Drive Motor a. The timing at which the drive power (SC-COM) and pulses (SC-A, SCA*, SC-B, SC-B*) are generated is a 4-phase stepping motor. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-7 Outline The scanner/lens drive motor (M2) is controlled to turn on/ off the... its rotation. (Q101) DC controller PCB +24VU R399 J110 SC-COM SC-COM Microprocessor A A* B B* Current switching signal 1 Current switching signal 2 Current switching signal 3 (Q109) Motor driver circuit SC-A SC-A* SC-B SC-B* M2 COPYRIGHT © 1999...
Service Manual
Page 58
... 0 Current switching signal 2 0 0 1 Current switching signal 3 0 1 1 Forwarding the scanner 1 1 1 c. In response, it has blown. 3-8 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Caution: The fuse (R339) will blow to cut the power to the scanner/lens... drive motor (M2) through B*) generated by pulse signals (A through the motor driver circuit. Any of the scanner...
... 0 Current switching signal 2 0 0 1 Current switching signal 3 0 1 1 Forwarding the scanner 1 1 1 c. In response, it has blown. 3-8 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Caution: The fuse (R339) will blow to cut the power to the scanner/lens... drive motor (M2) through B*) generated by pulse signals (A through the motor driver circuit. Any of the scanner...
Service Manual
Page 183
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 7-3 POWER SUPPLY SYSTEM A. Outline of the Power Supply System Door switch DS1 Power plug ... +24VR DC +24VU controller PCB +24VU Solenoid Scanner/lens drive motor (M2) +24VU Scanner cooling fan +24VU Blanking lamp +24VU Main motor/ main motor M1 driver PCB Fixing heater Scanning lamp Primary charging roller Developing roller Transfer roller Static eliminator Figure 7-201 COPYRIGHT © 1999...
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 7-3 POWER SUPPLY SYSTEM A. Outline of the Power Supply System Door switch DS1 Power plug ... +24VR DC +24VU controller PCB +24VU Solenoid Scanner/lens drive motor (M2) +24VU Scanner cooling fan +24VU Blanking lamp +24VU Main motor/ main motor M1 driver PCB Fixing heater Scanning lamp Primary charging roller Developing roller Transfer roller Static eliminator Figure 7-201 COPYRIGHT © 1999...
Service Manual
Page 220
... current, thereby preventing damage to pickup faults. When the limiter function is a DC motor. The pickup motor rotates clockwise or counterclockwise according to the motor driver (Q5). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 8 ADF G. Controlling the Pickup Motor 1. Any pickup fault causes the ADF controller...
... current, thereby preventing damage to pickup faults. When the limiter function is a DC motor. The pickup motor rotates clockwise or counterclockwise according to the motor driver (Q5). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 8 ADF G. Controlling the Pickup Motor 1. Any pickup fault causes the ADF controller...
Service Manual
Page 221
... a 4-phase control stepping motor. Q1 A CPU A* B B* ADF controller PCB +24V MA Q4 Motor driver MA* MB MB* Belt motor M1 Figure 8-122 COPYRIGHT © 1999 CANON INC. In response, the motor driver changes the output timing of the pulse signals (MA, MA*, MB, MB*) used to keep the motor ...will cause the ADF controller to flash the Jam indicator on the ADF controller PCB sends control pulse signals (A, A*, B, B*) to the motor driver (Q4). If loads large enough to activate the limiter function occur in succession, the belt motor cannot rotate as specified, possibly leading to ...
... a 4-phase control stepping motor. Q1 A CPU A* B B* ADF controller PCB +24V MA Q4 Motor driver MA* MB MB* Belt motor M1 Figure 8-122 COPYRIGHT © 1999 CANON INC. In response, the motor driver changes the output timing of the pulse signals (MA, MA*, MB, MB*) used to keep the motor ...will cause the ADF controller to flash the Jam indicator on the ADF controller PCB sends control pulse signals (A, A*, B, B*) to the motor driver (Q4). If loads large enough to activate the limiter function occur in succession, the belt motor cannot rotate as specified, possibly leading to ...
Service Manual
Page 328
...-63 Thermistor (TH1) Composite power supply PCB DC controller PCB 3 Replace the fixing assembly upper unit. Check the wiring from the main motor driver PCB to the main motor (M1) normal? YES End. Replace the main motor (M1). Is the problem corrected? Correct the connection and ...on ." Is the voltage between J207-1 and -2 on the power switch. if normal, see "DC power fails to the thermistor (TH1) normal? COPYRIGHT © 1999 CANON INC. NO Replace the DC controller PCB. 5 E010 Cause Wiring 1 Wiring 2 DC power supply Main motor (M1) DC controller PCB Step 1 2 3 4 Checks ...
...-63 Thermistor (TH1) Composite power supply PCB DC controller PCB 3 Replace the fixing assembly upper unit. Check the wiring from the main motor driver PCB to the main motor (M1) normal? YES End. Replace the main motor (M1). Is the problem corrected? Correct the connection and ...on ." Is the voltage between J207-1 and -2 on the power switch. if normal, see "DC power fails to the thermistor (TH1) normal? COPYRIGHT © 1999 CANON INC. NO Replace the DC controller PCB. 5 E010 Cause Wiring 1 Wiring 2 DC power supply Main motor (M1) DC controller PCB Step 1 2 3 4 Checks ...
Service Manual
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... NO YES Connector Pin Output Remarks J202 1 GND To DC 2 24V controller 3 5V PCB 4 5V 5 GND 6 24V J205 1 - motor 3 GND driver 4 24V PCB Action See "AC power fails to turn on. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 11 TROUBLESHOOTING 15 DC power fails to turn... Table 11-401 3 Is the fuse (FU102) on the power switch. NO Replace the composite power supply PCB. 11-68 11-68 COPYRIGHT © 1999 CANON INC. Set the meter range to 30 VDC, and turn on the composite power supply PCB blown? 120V model: 125 V, 5 V 220/240V model: 250 V, 2.5 A YES...
... NO YES Connector Pin Output Remarks J202 1 GND To DC 2 24V controller 3 5V PCB 4 5V 5 GND 6 24V J205 1 - motor 3 GND driver 4 24V PCB Action See "AC power fails to turn on. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 11 TROUBLESHOOTING 15 DC power fails to turn... Table 11-401 3 Is the fuse (FU102) on the power switch. NO Replace the composite power supply PCB. 11-68 11-68 COPYRIGHT © 1999 CANON INC. Set the meter range to 30 VDC, and turn on the composite power supply PCB blown? 120V model: 125 V, 5 V 220/240V model: 250 V, 2.5 A YES...
Service Manual
Page 360
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) J751 3 2 1 Q751 Pre-registration roller paper sensor SENSOR PCB M 12 12 J601 J602 M2 ...-feeder position sensor paper sensor (Single-feeder type only) SL5 Cassette pickup solenoid PS4 Vertical path roller paper sensor COPYRIGHT © 1999 CANON INC. GENERAL CIRCUIT DIAGRAM MAIN MOTOR DRIVER PCB 1. [220/240V] H N Line filter J502 J501 FT2 FT4 LF1 2 2 FT1 FT3 1 1 J1 DS1 Door switch NF1 NOISE FILTER PCB Thermal fuse...
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) J751 3 2 1 Q751 Pre-registration roller paper sensor SENSOR PCB M 12 12 J601 J602 M2 ...-feeder position sensor paper sensor (Single-feeder type only) SL5 Cassette pickup solenoid PS4 Vertical path roller paper sensor COPYRIGHT © 1999 CANON INC. GENERAL CIRCUIT DIAGRAM MAIN MOTOR DRIVER PCB 1. [220/240V] H N Line filter J502 J501 FT2 FT4 LF1 2 2 FT1 FT3 1 1 J1 DS1 Door switch NF1 NOISE FILTER PCB Thermal fuse...