Service Manual
Page 13
... as a single entity (cartridge). The user may be as large as A4 (LGL) or as small as 550 sheets of the ADF. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-1 Ecology-Conscious • The use of paper (500-sheet cassette ...Copier with existing Canon machines). 3. ADF Type • Continuous copying is 0 sec (at maximum (1/100 to make jam removal easy. 8. multifeeder type). 7. FEATURES 1. All-in a considerable reduction of a roller charging method has resulted in -One Cartridge for Simple Maintenance • The photosensitive drum, toner case, charging ...
... as a single entity (cartridge). The user may be as large as A4 (LGL) or as small as 550 sheets of the ADF. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-1 Ecology-Conscious • The use of paper (500-sheet cassette ...Copier with existing Canon machines). 3. ADF Type • Continuous copying is 0 sec (at maximum (1/100 to make jam removal easy. 8. multifeeder type). 7. FEATURES 1. All-in a considerable reduction of a roller charging method has resulted in -One Cartridge for Simple Maintenance • The photosensitive drum, toner case, charging ...
Service Manual
Page 14
Type Item Body Copyboard Source of light Lens Photosensitive medium 2. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Copier 1. Mechanisms Item Reproduction Charging Exposure Copy density adjustment ...focal point lens OPC 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-...
Type Item Body Copyboard Source of light Lens Photosensitive medium 2. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Copier 1. Mechanisms Item Reproduction Charging Exposure Copy density adjustment ...focal point lens OPC 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-...
Service Manual
Page 17
...*1, 25.4 kg*2/ 55.9 lb*2 Copy paper: Keep wrapped, and protect against humidity. Table 1-204 *1. 250-sheet cassette type *2. 500-sheet cassette type COPYRIGHT © 1999 CANON INC. Toner: Avoid direct sunlight, and store at 40°C/104°F, 85% or less. CHAPTER 1 GENERAL DESCRIPTION...
...*1, 25.4 kg*2/ 55.9 lb*2 Copy paper: Keep wrapped, and protect against humidity. Table 1-204 *1. 250-sheet cassette type *2. 500-sheet cassette type COPYRIGHT © 1999 CANON INC. Toner: Avoid direct sunlight, and store at 40°C/104°F, 85% or less. CHAPTER 1 GENERAL DESCRIPTION...
Service Manual
Page 104
...bias (ATVC) Transfer bias 1.2sec (approx.) 0.8sec (approx.) 0.7sec (approx.) 1.6sec(approx.) Figure 4-106 4-10 COPYRIGHT © 1999 CANON INC. Reference: While the transfer charging roller makes a single rotation, the microprocessor (Q900) checks the transfer current detection signal four times, and determines...during initial rotation executed each time the Copy Start key is applied to the transfer roller as follows, thereby returning the toner from the photosensitive drum to correct the changes in the environment. A current of the readings. Correcting the Transfer Bias ...
...bias (ATVC) Transfer bias 1.2sec (approx.) 0.8sec (approx.) 0.7sec (approx.) 1.6sec(approx.) Figure 4-106 4-10 COPYRIGHT © 1999 CANON INC. Reference: While the transfer charging roller makes a single rotation, the microprocessor (Q900) checks the transfer current detection signal four times, and determines...during initial rotation executed each time the Copy Start key is applied to the transfer roller as follows, thereby returning the toner from the photosensitive drum to correct the changes in the environment. A current of the readings. Correcting the Transfer Bias ...
Service Manual
Page 105
... (turning on and off the static eliminator bias) • Controlling the voltage level of excess toner on the photosensitive drum. Reference : Developing DC bias : -80 ~ -550V Developing AC bias : 1200Vpp ± 10% COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-11 Controlling the Developing...
... (turning on and off the static eliminator bias) • Controlling the voltage level of excess toner on the photosensitive drum. Reference : Developing DC bias : -80 ~ -550V Developing AC bias : 1200Vpp ± 10% COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-11 Controlling the Developing...
Service Manual
Page 108
...the sensitivity of the Developing DC Bias The DC bias control signal (BIAS_PWM) is set to how the density adjusting lever is selected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) The density correction switch (SW101) affects both manual density adjustment ...and auto density adjustment (AE). Developing DC bias Voltage supplied to the scanning lamp 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 set to how the density adjusting lever is selected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) The density correction switch (SW101) affects both manual density adjustment ...and auto density adjustment (AE). Developing DC bias Voltage supplied to the scanning lamp Toner save mode, photo mode) • Setting of the density correction switch (SW101) The density correction switch (SW101) mounted on the DC ...
Service Manual
Page 115
... of the side blanking lamp in Direct and Reduce mode B: Position of the side blanking lamp in relation to prevent adhesion of excess toner when making reduced copies. 2. Controlling the Side Blanking Mechanism 1. Outline The machine is moved in Reduce mode Figure 4-122 COPYRIGHT © 1999... CANON INC. Operations To blank out the non-image area in reduce mode, the side blanking lamp is equipped with a side blanking lamp at...
... of the side blanking lamp in Direct and Reduce mode B: Position of the side blanking lamp in relation to prevent adhesion of excess toner when making reduced copies. 2. Controlling the Side Blanking Mechanism 1. Outline The machine is moved in Reduce mode Figure 4-122 COPYRIGHT © 1999... CANON INC. Operations To blank out the non-image area in reduce mode, the side blanking lamp is equipped with a side blanking lamp at...
Service Manual
Page 118
...the drum, be affected. However, avoid exposing it to rotate it in the direction in a dark place, it will be sure to direct sunlight. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Do not use a flannel cloth. Be sure to the developing cylinder will cause... 2) Turn over the cartridge, and open the drum cover shutter 3) Clean the drum surface with a flannel cloth coated with toner. If exposed to 30000 lux. 4-24 COPYRIGHT © 1999 CANON INC. Reference: If the photosensitive drum is left alone for an appreciable time, the images will recover to a level at ...
...the drum, be affected. However, avoid exposing it to rotate it in the direction in a dark place, it will be sure to direct sunlight. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Do not use a flannel cloth. Be sure to the developing cylinder will cause... 2) Turn over the cartridge, and open the drum cover shutter 3) Clean the drum surface with a flannel cloth coated with toner. If exposed to 30000 lux. 4-24 COPYRIGHT © 1999 CANON INC. Reference: If the photosensitive drum is left alone for an appreciable time, the images will recover to a level at ...
Service Manual
Page 163
CHAPTER 6 FIXING SYSTEM This chapter explains the principles used to fuse toner images to transfer medium in view of the functions of electrical and mechanical units and in relation to their timing of operation. OPERATIONS 6-1 A. Fixing Assembly 6-11 COPYRIGHT © 1999 CANON INC. It also shows how these units may be disassembled/assembled and adjusted. Outline 6-1 B. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Controlling the Fixing Temperature 6-3 II. DISASSEMBLY/ASSEMBLY ..... 6-10 A. I.
CHAPTER 6 FIXING SYSTEM This chapter explains the principles used to fuse toner images to transfer medium in view of the functions of electrical and mechanical units and in relation to their timing of operation. OPERATIONS 6-1 A. Fixing Assembly 6-11 COPYRIGHT © 1999 CANON INC. It also shows how these units may be disassembled/assembled and adjusted. Outline 6-1 B. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Controlling the Fixing Temperature 6-3 II. DISASSEMBLY/ASSEMBLY ..... 6-10 A. I.
Service Manual
Page 260
... or low temperature/humidity or where temperature or humidity tends to change abruptly (e.g., near a window. COPYRIGHT © 1999 CANON INC. Storage after Removing the Packaging Seal a. d. The cartridge also holds toner, requiring the user to the direct rays of the sun, i.e., near an air conditioner). Avoid areas subject to exercise ... an appropriate storage box for storage.) 1. Storing and Handling the Cartridge with the Packaging Seal Removed The photosensitive medium is inside a protective box.) b. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-3
... or low temperature/humidity or where temperature or humidity tends to change abruptly (e.g., near a window. COPYRIGHT © 1999 CANON INC. Storage after Removing the Packaging Seal a. d. The cartridge also holds toner, requiring the user to the direct rays of the sun, i.e., near an air conditioner). Avoid areas subject to exercise ... an appropriate storage box for storage.) 1. Storing and Handling the Cartridge with the Packaging Seal Removed The photosensitive medium is inside a protective box.) b. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-3
Service Manual
Page 261
Figure 10-402 10-4 COPYRIGHT © 1999 CANON INC. CHAPTER 10 MAINTENANCE AND SERVICING 2. Handling the Cartridge a. If you shake it in a different way, the toner can spill out of toner, hold the cartridge level and shake it starts to even out the toner inside. Figure 10-401 b. Before setting the ...cartridge in the machine or if copies have white spots as shown in Figure 10401 to run out of the developing assembly or the cleaning assembly. CANON PC800s/900s REV.0 AUG. 1999 PRINTED ...
Figure 10-402 10-4 COPYRIGHT © 1999 CANON INC. CHAPTER 10 MAINTENANCE AND SERVICING 2. Handling the Cartridge a. If you shake it in a different way, the toner can spill out of toner, hold the cartridge level and shake it starts to even out the toner inside. Figure 10-401 b. Before setting the ...cartridge in the machine or if copies have white spots as shown in Figure 10401 to run out of the developing assembly or the cleaning assembly. CANON PC800s/900s REV.0 AUG. 1999 PRINTED ...
Service Manual
Page 262
...light-blocking shutter is out of reach of protection. e. Make sure that it is provided as 10000 and 30000 lux.) COPYRIGHT © 1999 CANON INC. g. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-5 Do not leave it using solvents.) d. Reference: If the ...machine unprotected. Do not disassemble the cartridge. Do not subject the cartridge to put a cover over it with a flannel cloth coated with toner. In particular, do not impose force on the shutter for the photosensitive drum cover found at the bottom of the cartridge. (If you...
...light-blocking shutter is out of reach of protection. e. Make sure that it is provided as 10000 and 30000 lux.) COPYRIGHT © 1999 CANON INC. g. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-5 Do not leave it using solvents.) d. Reference: If the ...machine unprotected. Do not disassemble the cartridge. Do not subject the cartridge to put a cover over it with a flannel cloth coated with toner. In particular, do not impose force on the shutter for the photosensitive drum cover found at the bottom of the cartridge. (If you...
Service Manual
Page 269
.../remarks Single-feeder pickup roller Moist cloth or alcohol Cleaning. Cleaning. Cleaning. Cleaning. If dirt cannot be sure to remove all toner to Note for Servicing Copyboard, Scanner Item Copyboard cover Copyboard glass Lens Scanning lamp Reflecting plate No. 1 through No. 6 mirror... shutter Tools/solvents Most cloth Work/remarks Cleaning; Take care not to wring it or leave solvent or oil. Cleaning. Cleaning. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) B. Dry wiping. Fixing Assembly, Delivery Assembly Item Tools/solvent...
.../remarks Single-feeder pickup roller Moist cloth or alcohol Cleaning. Cleaning. Cleaning. Cleaning. If dirt cannot be sure to remove all toner to Note for Servicing Copyboard, Scanner Item Copyboard cover Copyboard glass Lens Scanning lamp Reflecting plate No. 1 through No. 6 mirror... shutter Tools/solvents Most cloth Work/remarks Cleaning; Take care not to wring it or leave solvent or oil. Cleaning. Cleaning. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) B. Dry wiping. Fixing Assembly, Delivery Assembly Item Tools/solvent...
Service Manual
Page 314
... out the cartridge from the machine, and shake it must know that it several times. Consumable a. Cartridge When the cartridge starts to run out of toner, copies will start to use the cartridge, but the user must be replaced with a new cartridge soon. • If the copies are not normal, ...Replace the new cartridge. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-49 Figure 11-301 Try the following as shown. CHAPTER 11 TROUBLESHOOTING 8.
... out the cartridge from the machine, and shake it must know that it several times. Consumable a. Cartridge When the cartridge starts to run out of toner, copies will start to use the cartridge, but the user must be replaced with a new cartridge soon. • If the copies are not normal, ...Replace the new cartridge. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-49 Figure 11-301 Try the following as shown. CHAPTER 11 TROUBLESHOOTING 8.
Service Manual
Page 318
...Cartridge Developing bias, Developing bias terminal Step 1 2 3 4 5 6 Checks Clean the lens, reflecting plate, AE sensor, and static eliminator. Is the toner image before transfer more or less normal? (Be sure to make a check in contact with a metal part (side plate). 2. Replace the transfer charging ...roller. 1. Go to step 6. 1. The copy paper may not bring the best results. 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-53 Measure the electrical resistance on the correct method of storage. 2. ...
...Cartridge Developing bias, Developing bias terminal Step 1 2 3 4 5 6 Checks Clean the lens, reflecting plate, AE sensor, and static eliminator. Is the toner image before transfer more or less normal? (Be sure to make a check in contact with a metal part (side plate). 2. Replace the transfer charging ...roller. 1. Go to step 6. 1. The copy paper may not bring the best results. 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-53 Measure the electrical resistance on the correct method of storage. 2. ...
Service Manual
Page 319
Turn off the power in the machine. Is the toner image on the photosensitive drum before transfer more or less uneven? ... 2 3 Checks Is the density correction switch (SW101) or the density adjusting lever set to the drum drive gear). 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Replace the cartridge. 2. Clean the scanning lamp, reflecting ...the activation of the drum and the machine's top unit? Check the developing assembly. 11-54 COPYRIGHT © 1999 CANON INC. Set the cartridge in the middle of a copying run, and open the machine. YES 1. If the image...
Turn off the power in the machine. Is the toner image on the photosensitive drum before transfer more or less uneven? ... 2 3 Checks Is the density correction switch (SW101) or the density adjusting lever set to the drum drive gear). 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Replace the cartridge. 2. Clean the scanning lamp, reflecting ...the activation of the drum and the machine's top unit? Check the developing assembly. 11-54 COPYRIGHT © 1999 CANON INC. Set the cartridge in the middle of a copying run, and open the machine. YES 1. If the image...
Service Manual
Page 320
...Cause Fixing assembly Cartridge Step 1 2 Checks Turn off the power in the transfer charging roller assembly? NO Replace the cartridge. COPYRIGHT © 1999 CANON INC. CHAPTER 11 TROUBLESHOOTING 7 The copy is running out of a copying run, and open the machine's top unit. Is the problem corrected?... YES/NO Action YES End. YES End. Is the problem corrected? 4 Is there foreign matter or scratches in the middle of toner. YES Inform the user that the cartridge is foggy vertically. 8 The copy has black lines. (vertical, fuzzy, thick) 9 The copy has ...
...Cause Fixing assembly Cartridge Step 1 2 Checks Turn off the power in the transfer charging roller assembly? NO Replace the cartridge. COPYRIGHT © 1999 CANON INC. CHAPTER 11 TROUBLESHOOTING 7 The copy is running out of a copying run, and open the machine's top unit. Is the problem corrected?... YES/NO Action YES End. YES End. Is the problem corrected? 4 Is there foreign matter or scratches in the middle of toner. YES Inform the user that the cartridge is foggy vertically. 8 The copy has black lines. (vertical, fuzzy, thick) 9 The copy has ...
Service Manual
Page 321
...If the results are good, ask the user to step 3. 1. Clean the registration roller. 3. Check the varistor. 4. Adjust the tension of toner. Is the transfer guide assembly soiled? Check the cartridge for leakage of the scanner cable. Check the scanning lamp for foreign matter. 2. Clean the... pickup guide assembly and the delivery roller. 11-56 COPYRIGHT © 1999 CANON INC. CHAPTER 11 TROUBLESHOOTING 12 The copy has white spots. (horizontal) Cause Copy paper Step Checks 1 Is the paper of a recommended type...
...If the results are good, ask the user to step 3. 1. Clean the registration roller. 3. Check the varistor. 4. Adjust the tension of toner. Is the transfer guide assembly soiled? Check the cartridge for leakage of the scanner cable. Check the scanning lamp for foreign matter. 2. Clean the... pickup guide assembly and the delivery roller. 11-56 COPYRIGHT © 1999 CANON INC. CHAPTER 11 TROUBLESHOOTING 12 The copy has white spots. (horizontal) Cause Copy paper Step Checks 1 Is the paper of a recommended type...
Service Manual
Page 324
...NO NO Action Set the cartridge in the machine, and close the machine. NO Check the drum drive assembly. Replace the cartridge COPYRIGHT © 1999 CANON INC. Check the copyboard cover too see if it . Turn off the copyboard glass? YES/NO YES YES NO NO YES NO Action Correct the...on the correct method of placing originals. Is the problem corrected? Adjust the distance between No. 1 mirror and the No. 2 mirror. Does the cartridge have toner? Replace the cartridge. Check the cartridge. NO 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-59
...NO NO Action Set the cartridge in the machine, and close the machine. NO Check the drum drive assembly. Replace the cartridge COPYRIGHT © 1999 CANON INC. Check the copyboard cover too see if it . Turn off the copyboard glass? YES/NO YES YES NO NO YES NO Action Correct the...on the correct method of placing originals. Is the problem corrected? Adjust the distance between No. 1 mirror and the No. 2 mirror. Does the cartridge have toner? Replace the cartridge. Check the cartridge. NO 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-59
Service Manual
Page 342
...clean with solvent. CHAPTER 11 TROUBLESHOOTING 2 Separation/Feeding Assembly Cause Copy paper Feeding assembly Step 1 2 3 Checks Try paper recommended by Canon. Is the problem corrected? Is the copy paper curled, wavy, or otherwise deformed? Registrationrelated spring, Spring clutch of the registration assembly....Delivery sensor (PS3) Delivery roller drive assembly Leading edge margin Step 1 2 3 4 5 Checks Is the fixing inlet guide soiled with toner or the like? 6 Does the pre-registration roller paper sensor operate normally? 7 Is the registration roller worn, deformed, or soiled?...
...clean with solvent. CHAPTER 11 TROUBLESHOOTING 2 Separation/Feeding Assembly Cause Copy paper Feeding assembly Step 1 2 3 Checks Try paper recommended by Canon. Is the problem corrected? Is the copy paper curled, wavy, or otherwise deformed? Registrationrelated spring, Spring clutch of the registration assembly....Delivery sensor (PS3) Delivery roller drive assembly Leading edge margin Step 1 2 3 4 5 Checks Is the fixing inlet guide soiled with toner or the like? 6 Does the pre-registration roller paper sensor operate normally? 7 Is the registration roller worn, deformed, or soiled?...