Service Manual
Page 13
... on . 4. The user may be between 70% and 141% in -One Cartridge for Simple Maintenance • The photosensitive drum, toner case, charging roller, developing assembly, and cleaning assembly are constructed as a business card. 5. SURF Fixing Assembly • The wait time... is possible with existing Canon machines). 3. COPYRIGHT © 1999 CANON INC. multifeeder type). 7. ADF Type • Continuous copying is 0 sec (at maximum (1/100 to make jam removal easy. 8. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON...
... on . 4. The user may be between 70% and 141% in -One Cartridge for Simple Maintenance • The photosensitive drum, toner case, charging roller, developing assembly, and cleaning assembly are constructed as a business card. 5. SURF Fixing Assembly • The wait time... is possible with existing Canon machines). 3. COPYRIGHT © 1999 CANON INC. multifeeder type). 7. ADF Type • Continuous copying is 0 sec (at maximum (1/100 to make jam removal easy. 8. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON...
Service Manual
Page 14
... 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. SPECIFICATIONS A. Type Item Body Copyboard Source of light Lens Photosensitive medium 2. CHAPTER 1 GENERAL DESCRIPTION II. CANON...
... 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. SPECIFICATIONS A. Type Item Body Copyboard Source of light Lens Photosensitive medium 2. CHAPTER 1 GENERAL DESCRIPTION II. CANON...
Service Manual
Page 17
reference only) Copying: 0.4kWh (approx.; Toner: Avoid direct sunlight, and store at 40°C/104°F, 85% or less. about 5min; Table 1-204 *1. 250-sheet cassette type *2. 500-sheet cassette type COPYRIGHT © 1999 CANON INC. CHAPTER 1 GENERAL DESCRIPTION 4. reference only) ...lb*2 Multifeeder type: 24.0 kg*1/ 52.8 lb*1, 25.4 kg*2/ 55.9 lb*2 Copy paper: Keep wrapped, and protect against humidity. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-5 Others Item Operating condition Temperature Humidity Atmospheric pressure Power source Descriptions...
reference only) Copying: 0.4kWh (approx.; Toner: Avoid direct sunlight, and store at 40°C/104°F, 85% or less. about 5min; Table 1-204 *1. 250-sheet cassette type *2. 500-sheet cassette type COPYRIGHT © 1999 CANON INC. CHAPTER 1 GENERAL DESCRIPTION 4. reference only) ...lb*2 Multifeeder type: 24.0 kg*1/ 52.8 lb*1, 25.4 kg*2/ 55.9 lb*2 Copy paper: Keep wrapped, and protect against humidity. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-5 Others Item Operating condition Temperature Humidity Atmospheric pressure Power source Descriptions...
Service Manual
Page 104
...roller makes a single rotation, the microprocessor (Q900) checks the transfer current detection signal four times, and determines the level of the readings. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) A current of a specific level (-14.6 µA) is applied ... (ATVC) Transfer bias 1.2sec (approx.) 0.8sec (approx.) 0.7sec (approx.) 1.6sec(approx.) Figure 4-106 4-10 COPYRIGHT © 1999 CANON INC. To remove excess toner, a positive voltage is executed The polarity of the Transfer Bias (cleaning bias) The machine uses a direct charging method, allowing...
...roller makes a single rotation, the microprocessor (Q900) checks the transfer current detection signal four times, and determines the level of the readings. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) A current of a specific level (-14.6 µA) is applied ... (ATVC) Transfer bias 1.2sec (approx.) 0.8sec (approx.) 0.7sec (approx.) 1.6sec(approx.) Figure 4-106 4-10 COPYRIGHT © 1999 CANON INC. To remove excess toner, a positive voltage is executed The polarity of the Transfer Bias (cleaning bias) The machine uses a direct charging method, allowing...
Service Manual
Page 105
...Turning on and off the AC bias (turning on and off the static eliminator bias) • Controlling the voltage level of excess toner on the photosensitive drum. Outline The circuit shown in Figure 4-107 is applied to the developing cylinder while copies are applied to ... are being made. Reference : Developing DC bias : -80 ~ -550V Developing AC bias : 1200Vpp ± 10% COPYRIGHT © 1999 CANON INC. Controlling the Developing/Separation Static Eliminator Bias 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-11 CHAPTER 4 IMAGE FORMATION SYSTEM E.
...Turning on and off the AC bias (turning on and off the static eliminator bias) • Controlling the voltage level of excess toner on the photosensitive drum. Outline The circuit shown in Figure 4-107 is applied to the developing cylinder while copies are applied to ... are being made. Reference : Developing DC bias : -80 ~ -550V Developing AC bias : 1200Vpp ± 10% COPYRIGHT © 1999 CANON INC. Controlling the Developing/Separation Static Eliminator Bias 1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-11 CHAPTER 4 IMAGE FORMATION SYSTEM E.
Service Manual
Page 108
... 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 controller PCB... may be set during manual density adjustment. 4-14 COPYRIGHT © 1999 CANON INC. Controlling the Voltage Level of the Developing DC Bias The DC bias control signal (BIAS_PWM) is varied according to the following settings to...
... 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 controller PCB... may be set during manual density adjustment. 4-14 COPYRIGHT © 1999 CANON INC. Controlling the Voltage Level of the Developing DC Bias The DC bias control signal (BIAS_PWM) is varied according to the following settings to...
Service Manual
Page 115
...Non-image area in Reduce mode A: Position of 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 Operations To blank out the non-image... area in Reduce mode Figure 4-122 COPYRIGHT © 1999 CANON INC. Outline The machine is moved in relation to prevent adhesion of the side blanking lamp in reduce mode, the side blanking lamp is ...
...Non-image area in Reduce mode A: Position of 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 Operations To blank out the non-image... area in Reduce mode Figure 4-122 COPYRIGHT © 1999 CANON INC. Outline The machine is moved in relation to prevent adhesion of the side blanking lamp in reduce mode, the side blanking lamp is ...
Service Manual
Page 118
...sure to rotate it in the direction in a dark place, it will recover to direct sunlight. Be sure to 30000 lux. 4-24 COPYRIGHT © 1999 CANON INC. 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) Clean the drum surface with a flannel cloth coated with toner. Do not use a flannel cloth. CHAPTER 4 IMAGE FORMATION SYSTEM 2. If you must clean it to a level at which it will cause no practical problem...
...sure to rotate it in the direction in a dark place, it will recover to direct sunlight. Be sure to 30000 lux. 4-24 COPYRIGHT © 1999 CANON INC. 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) Clean the drum surface with a flannel cloth coated with toner. Do not use a flannel cloth. CHAPTER 4 IMAGE FORMATION SYSTEM 2. If you must clean it to a level at which it will cause no practical problem...
Service Manual
Page 163
DISASSEMBLY/ASSEMBLY ..... 6-10 A. OPERATIONS 6-1 A. Outline 6-1 B. 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. Fixing Assembly 6-11 COPYRIGHT © 1999 CANON INC. It also shows how these units may be disassembled/assembled and adjusted. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) I. Controlling the Fixing Temperature 6-3 II.
DISASSEMBLY/ASSEMBLY ..... 6-10 A. OPERATIONS 6-1 A. Outline 6-1 B. 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. Fixing Assembly 6-11 COPYRIGHT © 1999 CANON INC. It also shows how these units may be disassembled/assembled and adjusted. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) I. Controlling the Fixing Temperature 6-3 II.
Service Manual
Page 260
...is an organic photoconducting (OPC) material, which would deteriorate if subjected to the direct rays of the sun, i.e., near an air conditioner). d. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-3 Avoid areas subject to storing light. CHAPTER 10 MAINTENANCE AND SERVICING...an extremely high temperature. (This applies even if the cartridge is stored at 40°C/104°F or lower. The cartridge also holds toner, requiring the user to exercise care when storing or handling it. (Be sure that the cartridge is inside a protective box.) b. Avoid...
...is an organic photoconducting (OPC) material, which would deteriorate if subjected to the direct rays of the sun, i.e., near an air conditioner). d. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-3 Avoid areas subject to storing light. CHAPTER 10 MAINTENANCE AND SERVICING...an extremely high temperature. (This applies even if the cartridge is stored at 40°C/104°F or lower. The cartridge also holds toner, requiring the user to exercise care when storing or handling it. (Be sure that the cartridge is inside a protective box.) b. Avoid...
Service Manual
Page 261
.... Figure 10-401 b. Do not place the cartridge on its end or turn it in a different way, the toner can spill out of toner, hold the cartridge level and shake it about 90° several times as shown in the machine or if copies have white spots as shown ...in Figure 10-402. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Before setting the cartridge in Figure 10401...
.... Figure 10-401 b. Do not place the cartridge on its end or turn it in a different way, the toner can spill out of toner, hold the cartridge level and shake it about 90° several times as shown in the machine or if copies have white spots as shown ...in Figure 10-402. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Before setting the cartridge in Figure 10401...
Service Manual
Page 262
... found at the bottom of the cartridge. (If you have soiled the surface of the photosensitive drum as 10000 and 30000 lux.) COPYRIGHT © 1999 CANON INC. CHAPTER 10 MAINTENANCE AND SERVICING c. Do not disassemble the cartridge. e. If the drum is provided as a means of the sun is noted; ... surface of the photosensitive drum, wipe it . Keep the following in a protective box or put a cover over it with a flannel cloth coated with toner. Do not clean it outside the machine unprotected. the memory (i.e., cause of children. Do not leave it using solvents.) d.
... found at the bottom of the cartridge. (If you have soiled the surface of the photosensitive drum as 10000 and 30000 lux.) COPYRIGHT © 1999 CANON INC. CHAPTER 10 MAINTENANCE AND SERVICING c. Do not disassemble the cartridge. e. If the drum is provided as a means of the sun is noted; ... surface of the photosensitive drum, wipe it . Keep the following in a protective box or put a cover over it with a flannel cloth coated with toner. Do not clean it outside the machine unprotected. the memory (i.e., cause of children. Do not leave it using solvents.) d.
Service Manual
Page 269
... Item Tools/solvent Inlet guide Solvent Work/remarks Cleaning. Cleaning. Take care not to prevent toner soiling images. Dry wiping. If dirt cannot be sure to remove all toner to touch it well. Multifeeder, Pickup roller Moist cloth or alcohol Cleaning. B. Work/remarks... Dry-wiping. COPYRIGHT © 1999 CANON INC. Cleaning. Cleaning. Cleaning. Cleaning. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN ...
... Item Tools/solvent Inlet guide Solvent Work/remarks Cleaning. Cleaning. Take care not to prevent toner soiling images. Dry wiping. If dirt cannot be sure to remove all toner to touch it well. Multifeeder, Pickup roller Moist cloth or alcohol Cleaning. B. Work/remarks... Dry-wiping. COPYRIGHT © 1999 CANON INC. Cleaning. Cleaning. Cleaning. Cleaning. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN ...
Service Manual
Page 314
... from the machine, and shake it 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 Cartridge When the cartridge starts to run out of... toner, copies will start to use the cartridge, but the user must know that it several times. Consumable a. COPYRIGHT © 1999 CANON INC. Figure 11-301 Try the following as shown. CHAPTER 11 TROUBLESHOOTING 8.
... from the machine, and shake it 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 Cartridge When the cartridge starts to run out of... toner, copies will start to use the cartridge, but the user must know that it several times. Consumable a. COPYRIGHT © 1999 CANON INC. Figure 11-301 Try the following as shown. CHAPTER 11 TROUBLESHOOTING 8.
Service Manual
Page 318
... copy paper may not bring the best results. 1. Inform the user that using non-recommended paper may be in a short time to be moist. End. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-53 Troubleshooting Image Faults 1 The copy is too light. (halftone area only) 2 ... NO NO YES YES NO YES NO Action End. Replace the electric unit (composite power supply PCB, DC controller PCB). Replace the cartridge. 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. Check to find out if ...
... copy paper may not bring the best results. 1. Inform the user that using non-recommended paper may be in a short time to be moist. End. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-53 Troubleshooting Image Faults 1 The copy is too light. (halftone area only) 2 ... NO NO YES YES NO YES NO Action End. Replace the electric unit (composite power supply PCB, DC controller PCB). Replace the cartridge. 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. Check to find out if ...
Service Manual
Page 319
Is the problem corrected? YES 1. Is the toner image on the photosensitive drum before transfer more or ...(SW101) or the density adjusting lever set to step 2). Check the developing assembly. 11-54 COPYRIGHT © 1999 CANON INC. Replace the cartridge. 2. Set the cartridge in reference to the middle setting, and make a copy. End. ...lamp. 2. Mount the transfer charging roller correctly. 2. Clean the scanning lamp, reflecting plate, lens, and mirror. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 11 TROUBLESHOOTING 4 The copy has uneven ...
Is the problem corrected? YES 1. Is the toner image on the photosensitive drum before transfer more or ...(SW101) or the density adjusting lever set to step 2). Check the developing assembly. 11-54 COPYRIGHT © 1999 CANON INC. Replace the cartridge. 2. Set the cartridge in reference to the middle setting, and make a copy. End. ...lamp. 2. Mount the transfer charging roller correctly. 2. Clean the scanning lamp, reflecting plate, lens, and mirror. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 11 TROUBLESHOOTING 4 The copy has uneven ...
Service Manual
Page 320
...? 3 Take out and then set the cartridge once again. 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 black lines. (vertical, fine...) Cause Scanner Transfer guide assembly Cartridge Step 1 2 Checks Clean the scanning lamp, reflecting plate, lens, and mirror. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-55
...? 3 Take out and then set the cartridge once again. 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 black lines. (vertical, fine...) Cause Scanner Transfer guide assembly Cartridge Step 1 2 Checks Clean the scanning lamp, reflecting plate, lens, and mirror. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-55
Service Manual
Page 321
... the scanner rail for flickering and the presence/ absence of a developing bias. 13 The back of toner. Clean the registration roller. 3. Clean the pickup guide assembly and the delivery roller. 11-56 COPYRIGHT © 1999 CANON INC. Adjust the tension of package. Check the varistor. 4. Scanning lamp, Developing bias YES/NO YES.... Check the scanning lamp for foreign matter. 2. Scanner rail 3 Is the problem noted at the same position on the correct method of the paper soiled? CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
... the scanner rail for flickering and the presence/ absence of a developing bias. 13 The back of toner. Clean the registration roller. 3. Clean the pickup guide assembly and the delivery roller. 11-56 COPYRIGHT © 1999 CANON INC. Adjust the tension of package. Check the varistor. 4. Scanning lamp, Developing bias YES/NO YES.... Check the scanning lamp for foreign matter. 2. Scanner rail 3 Is the problem noted at the same position on the correct method of the paper soiled? CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Service Manual
Page 324
... clean it happens to be warping. 2. Does the drum drive gear rotate normally? YES Check the highvoltage transformer (composite power supply PCB). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-59 CHAPTER 11 TROUBLESHOOTING 20 The copy has poor sharpness. (...machine. Set the cartridge in Direct within specification? Does the cartridge have toner? Replace the cartridge. Is the problem corrected? Replace the cartridge. 21 The copy is blank. Replace the cartridge COPYRIGHT © 1999 CANON INC. Check the cartridge. YES/NO NO YES NO NO Action Set...
... clean it happens to be warping. 2. Does the drum drive gear rotate normally? YES Check the highvoltage transformer (composite power supply PCB). CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-59 CHAPTER 11 TROUBLESHOOTING 20 The copy has poor sharpness. (...machine. Set the cartridge in Direct within specification? Does the cartridge have toner? Replace the cartridge. Is the problem corrected? Replace the cartridge. 21 The copy is blank. Replace the cartridge COPYRIGHT © 1999 CANON INC. Check the cartridge. YES/NO NO YES NO NO Action Set...
Service Manual
Page 342
...to control registration. 2. Replace the paper. Replace the roller or the fixing assembly upper unit. Make adjustments so that it . CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-77 YES Clean the static eliminator. Replace the sensor.... leading edge of storing paper. if wear or deformation is found , replace it moves smoothly. If dirt is found , clean with toner? Does the delivery detecting lever move smoothly? Registrationrelated spring, Spring clutch of the registration assembly. 3 Fixing/Delivery Assembly Cause Inlet guide...
...to control registration. 2. Replace the paper. Replace the roller or the fixing assembly upper unit. Make adjustments so that it . CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-77 YES Clean the static eliminator. Replace the sensor.... leading edge of storing paper. if wear or deformation is found , replace it moves smoothly. If dirt is found , clean with toner? Does the delivery detecting lever move smoothly? Registrationrelated spring, Spring clutch of the registration assembly. 3 Fixing/Delivery Assembly Cause Inlet guide...