Service Manual
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... • In manual feed mode, paper may expect quality copy images at maximum (1/100 to make jam removal easy. 8. COPYRIGHT © 1999 CANON INC. Personal Copier with existing Canon machines). 3. All-in 1% increments. 2. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU...FEATURES 1. CHAPTER 1 GENERAL DESCRIPTION I. Separate top unit • The machine's top unit 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 550...
... • In manual feed mode, paper may expect quality copy images at maximum (1/100 to make jam removal easy. 8. COPYRIGHT © 1999 CANON INC. Personal Copier with existing Canon machines). 3. All-in 1% increments. 2. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU...FEATURES 1. CHAPTER 1 GENERAL DESCRIPTION I. Separate top unit • The machine's top unit 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 550...
Service Manual
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... jam occurs if left unattended. A current of a specific level (-14.6 µA) is applied to the transfer roller. (See Table 4-103.) Copy Start key ON STBY INTR SCFW SCRV SCFW SCRV LSTR STBY Main motor (M1) Cleaning bias Reference bias (ATVC) Transfer bias 1.2sec (approx.)...8sec (approx.) 0.7sec (approx.) 1.6sec(approx.) Figure 4-106 4-10 COPYRIGHT © 1999 CANON INC. Switching the Polarity of the Transfer Bias (cleaning bias) The machine uses a direct charging method, allowing toner to move from the roller to apply using the average of the transfer bias (constant current ...
... jam occurs if left unattended. A current of a specific level (-14.6 µA) is applied to the transfer roller. (See Table 4-103.) Copy Start key ON STBY INTR SCFW SCRV SCFW SCRV LSTR STBY Main motor (M1) Cleaning bias Reference bias (ATVC) Transfer bias 1.2sec (approx.)...8sec (approx.) 0.7sec (approx.) 1.6sec(approx.) Figure 4-106 4-10 COPYRIGHT © 1999 CANON INC. Switching the Polarity of the Transfer Bias (cleaning bias) The machine uses a direct charging method, allowing toner to move from the roller to apply using the average of the transfer bias (constant current ...
Service Manual
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... density adjustment (AE). SW101 Figure 4-108 If the machine is not equipped with a density correction switch (SW101),... copy mode (toner save mode or photo mode is selected. The machine corrects the level of the developing DC bias and the voltage supplied to control the copy ...the scanning lamp Toner 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 ...according to the following settings to the setting used for normal copying when toner save mode, photo mode) • Setting of the photosensitive ...
... density adjustment (AE). SW101 Figure 4-108 If the machine is not equipped with a density correction switch (SW101),... copy mode (toner save mode or photo mode is selected. The machine corrects the level of the developing DC bias and the voltage supplied to control the copy ...the scanning lamp Toner 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 ...according to the following settings to the setting used for normal copying when toner save mode, photo mode) • Setting of the photosensitive ...
Service Manual
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...lamp at the front and the rear used to the distance over which the lens moves as detected by the lens shift detecting shaft. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-21 Rear side blanking lamp Reflecting plate Lens shift detecting ...Reduce mode A: Position of the side blanking lamp in Reduce mode Figure 4-122 COPYRIGHT © 1999 CANON INC. CHAPTER 4 IMAGE FORMATION SYSTEM G. Controlling the Side Blanking Mechanism 1. Outline The machine is moved in relation to prevent adhesion of the side blanking lamp in Direct and Reduce mode B: Position...
...lamp at the front and the rear used to the distance over which the lens moves as detected by the lens shift detecting shaft. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-21 Rear side blanking lamp Reflecting plate Lens shift detecting ...Reduce mode A: Position of the side blanking lamp in Reduce mode Figure 4-122 COPYRIGHT © 1999 CANON INC. CHAPTER 4 IMAGE FORMATION SYSTEM G. Controlling the Side Blanking Mechanism 1. Outline The machine is moved in relation to prevent adhesion of the side blanking lamp in Direct and Reduce mode B: Position...
Service Manual
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... to work briskly. Do not use a flannel cloth. However, avoid exposing it rotates when making copies. The rays of 1500 lux (ordinary lighting) for 5 min and then is left alone for an...will be sure to a level at which it to the developing cylinder will cause no practical problem. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) If exposed to light for... 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)...
... to work briskly. Do not use a flannel cloth. However, avoid exposing it rotates when making copies. The rays of 1500 lux (ordinary lighting) for 5 min and then is left alone for an...will be sure to a level at which it to the developing cylinder will cause no practical problem. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) If exposed to light for... 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)...
Service Manual
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... machine or if copies have white spots as when it starts to even out the toner inside. Figure 10-401 b. If you shake it over as shown 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 Figure 10-402. CANON... run out of the developing assembly or the cleaning assembly. CHAPTER 10 MAINTENANCE AND SERVICING 2. Handling the Cartridge a. Figure 10-402 10-4 COPYRIGHT © 1999 CANON INC.
... machine or if copies have white spots as when it starts to even out the toner inside. Figure 10-401 b. If you shake it over as shown 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 Figure 10-402. CANON... run out of the developing assembly or the cleaning assembly. CHAPTER 10 MAINTENANCE AND SERVICING 2. Handling the Cartridge a. Figure 10-402 10-4 COPYRIGHT © 1999 CANON INC.
Service Manual
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... a long time, however, copies can start to light of white spots or vertical bands), however, may not disappear. e. Try leaving the machine alone as long as possible if such a problem is provided as 10000 and 30000 lux.) COPYRIGHT © 1999 CANON INC. Try to excess vibration or impact. Do not ...leave it using solvents.) d. g. The photosensitive drum is susceptible to put it in a protective box or put a cover over it with a flannel cloth coated with toner. If the drum is out of reach ...
... a long time, however, copies can start to light of white spots or vertical bands), however, may not disappear. e. Try leaving the machine alone as long as possible if such a problem is provided as 10000 and 30000 lux.) COPYRIGHT © 1999 CANON INC. Try to excess vibration or impact. Do not ...leave it using solvents.) d. g. The photosensitive drum is susceptible to put it in a protective box or put a cover over it with a flannel cloth coated with toner. If the drum is out of reach ...
Service Manual
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... back into the machine, and make copies. • If the copies are normal, You may continue to have white lines or spots as necessary: 1) Take out the cartridge from the machine, and shake it must know that it several times. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0... AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-49 Consumable a. Figure 11-301 Try the following as shown. Cartridge When the cartridge starts to run out of toner, copies...
... back into the machine, and make copies. • If the copies are normal, You may continue to have white lines or spots as necessary: 1) Take out the cartridge from the machine, and shake it must know that it several times. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0... AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-49 Consumable a. Figure 11-301 Try the following as shown. Cartridge When the cartridge starts to run out of toner, copies...
Service Manual
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Is the toner image before transfer more or less normal? (Be sure to be moist. Replace the cartridge. Go ... contacts for electrical continuity. 2. COPYRIGHT © 1999 CANON INC. Is it 0Ω? Replace the transfer charging roller. 1. Troubleshooting Image Faults 1 The copy is too light. (halftone area only) 2 The copy is too light. (including solid area) 3 The copy is too light. (enter image, appreciably) Cause Lens...) of the fixing assembly. CHAPTER 11 TROUBLESHOOTING C. Measure the electrical resistance on the correct method of a copying run, and open the machine's top unit.
Is the toner image before transfer more or less normal? (Be sure to be moist. Replace the cartridge. Go ... contacts for electrical continuity. 2. COPYRIGHT © 1999 CANON INC. Is it 0Ω? Replace the transfer charging roller. 1. Troubleshooting Image Faults 1 The copy is too light. (halftone area only) 2 The copy is too light. (including solid area) 3 The copy is too light. (enter image, appreciably) Cause Lens...) of the fixing assembly. CHAPTER 11 TROUBLESHOOTING C. Measure the electrical resistance on the correct method of a copying run, and open the machine's top unit.
Service Manual
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... 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) Is the toner image on the photosensitive drum before transfer more or less uneven? YES/NO Action YES End. CHAPTER...lens, and mirror. Mount the transfer charging roller correctly. 2. Check the activation of the drum and the machine's top unit? Replace the transfer charging roller correctly. 6 The copy is mounted correctly (in reference to the middle setting? If the image is still foggy, to the middle...
... 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) Is the toner image on the photosensitive drum before transfer more or less uneven? YES/NO Action YES End. CHAPTER...lens, and mirror. Mount the transfer charging roller correctly. 2. Check the activation of the drum and the machine's top unit? Replace the transfer charging roller correctly. 6 The copy is mounted correctly (in reference to the middle setting? If the image is still foggy, to the middle...
Service Manual
Page 320
...the foreign matter, or replace the transfer charging roller. Clean the transfer guide assembly. Does the copy image before moving through the fixing assembly have white spots or white lines? CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-55 Shake the ... © 1999 CANON INC. Is the problem corrected? Is the problem corrected? 4 Is there foreign matter or scratches in the middle of toner. Is the problem corrected? YES/NO Action YES End. CHAPTER 11 TROUBLESHOOTING 7 The copy is running out of a copying run, and open the machine's top unit. ...
...the foreign matter, or replace the transfer charging roller. Clean the transfer guide assembly. Does the copy image before moving through the fixing assembly have white spots or white lines? CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-55 Shake the ... © 1999 CANON INC. Is the problem corrected? Is the problem corrected? 4 Is there foreign matter or scratches in the middle of toner. Is the problem corrected? YES/NO Action YES End. CHAPTER 11 TROUBLESHOOTING 7 The copy is running out of a copying run, and open the machine's top unit. ...
Service Manual
Page 324
... charging terminal, cartridge Step 1 2 3 4 5 6 Checks Is the cartridge set in the machine. Has the open properly? Replace the cartridge. Replace the cartridge COPYRIGHT © 1999 CANON INC. Check the copyboard cover too see if it . Replace the cartridge. 21 The copy is blank. Set the cartridge in Direct within specification? NO Check the... the front left of placing originals. YES/NO YES YES NO NO YES NO Action Correct the light image problem first. 1. Does the cartridge have toner? Does the drum drive gear rotate normally? NO 1.
... charging terminal, cartridge Step 1 2 3 4 5 6 Checks Is the cartridge set in the machine. Has the open properly? Replace the cartridge. Replace the cartridge COPYRIGHT © 1999 CANON INC. Check the copyboard cover too see if it . Replace the cartridge. 21 The copy is blank. Set the cartridge in Direct within specification? NO Check the... the front left of placing originals. YES/NO YES YES NO NO YES NO Action Correct the light image problem first. 1. Does the cartridge have toner? Does the drum drive gear rotate normally? NO 1.