Service Manual
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...of paper and 2-way pick-up. • The universal cassette (about 250 sheets) accommodates paper of ozone; Fixed copyboard with a color toner cartridge (red, blue, green, brown); Integrated cartridge for the environment. • The use of existing machines) 3. Separate top unit. ...) 1 - 1 I. COPYRIGHT @ 1994 CANON INC. Uses a SURF fixing assembly. • The use of a charging roller helps to business card may simply replace the cartridge and perform simple cleaning work . • The photosensitive drum, toner, charging roller, developing assembly, and cleaning assembly...
...of paper and 2-way pick-up. • The universal cassette (about 250 sheets) accommodates paper of ozone; Fixed copyboard with a color toner cartridge (red, blue, green, brown); Integrated cartridge for the environment. • The use of existing machines) 3. Separate top unit. ...) 1 - 1 I. COPYRIGHT @ 1994 CANON INC. Uses a SURF fixing assembly. • The use of a charging roller helps to business card may simply replace the cartridge and perform simple cleaning work . • The photosensitive drum, toner, charging roller, developing assembly, and cleaning assembly...
Service Manual
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... number Maximum Power consumption Standby Copying 0.9 kW or less 0.2 W (approx.; A4R A4R PC770 12 12 12 12 12 9 10 Table 1-101 Model PC740/750 10 10 10 10 10 7 8 PC720 8 8 8 8 8 6 7 1- 4 COPYRIGHT © 1994 CANON INC. keep at 40°C/85% or less. Others Item PC720 PC740 Temperature 7.5 to... in. (approx.) Dimensions Depth 438.0 mm /17.2 in. (approx.) Height 290.0 mm /11.4 in. (approx.) Weight 20.0 kg /44.0lb (approx.; Consumables Toner Avoid direct sunshine; =GENERAL DESCRIPTION 4. CANON PC7201740/750R70 REV.O AUG. 1994 PRINTED IN JAPAN (MPRIME AU JAPAN)
... number Maximum Power consumption Standby Copying 0.9 kW or less 0.2 W (approx.; A4R A4R PC770 12 12 12 12 12 9 10 Table 1-101 Model PC740/750 10 10 10 10 10 7 8 PC720 8 8 8 8 8 6 7 1- 4 COPYRIGHT © 1994 CANON INC. keep at 40°C/85% or less. Others Item PC720 PC740 Temperature 7.5 to... in. (approx.) Dimensions Depth 438.0 mm /17.2 in. (approx.) Height 290.0 mm /11.4 in. (approx.) Weight 20.0 kg /44.0lb (approx.; Consumables Toner Avoid direct sunshine; =GENERAL DESCRIPTION 4. CANON PC7201740/750R70 REV.O AUG. 1994 PRINTED IN JAPAN (MPRIME AU JAPAN)
Service Manual
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... run out of the copier. 0 7I ,sue 0 Figure 1-415 Figure 1-413 2) Set the cartridge in Figure 1-410. 2. Figure 1-414 2) Slide the old cartridge out of toner, the copy image will tend to open the body. b. If the copy image fails to return to normal, • Replace the cartridge according to tam... the copier, and make a copy. If the copy image has returned to normal, • Advise the user that, although he/she may continue to use . CANON PC720840r/501770 REV.OAUG.1994 PRINTEDIN JAPAN0MPRIMEAU JAPON) Preface Thank you (of use the cartridge, a new cartridge should be obtained.
... run out of the copier. 0 7I ,sue 0 Figure 1-415 Figure 1-413 2) Set the cartridge in Figure 1-410. 2. Figure 1-414 2) Slide the old cartridge out of toner, the copy image will tend to open the body. b. If the copy image fails to return to normal, • Replace the cartridge according to tam... the copier, and make a copy. If the copy image has returned to normal, • Advise the user that, although he/she may continue to use . CANON PC720840r/501770 REV.OAUG.1994 PRINTEDIN JAPAN0MPRIMEAU JAPON) Preface Thank you (of use the cartridge, a new cartridge should be obtained.
Service Manual
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...77 Figure 2-108 The toner is charged to a positive potential and deposited on the developing cylinder in Figure 2-107, the developing assembly consists of a rubber blade and a developing cylinder constructed of a fixed magnet and a cylinder that rotates around it. CANON PC72N7401150R/0 REV.O AUG.1994... developing bias is called developing bias. MN COPYING PROCESS E. the resulting bias is greater than the positive component. The toner has insulating characteristics and becomes positively charged by the friction between the rotating developing cylinder and a blade, where it is...
...77 Figure 2-108 The toner is charged to a positive potential and deposited on the developing cylinder in Figure 2-107, the developing assembly consists of a rubber blade and a developing cylinder constructed of a fixed magnet and a cylinder that rotates around it. CANON PC72N7401150R/0 REV.O AUG.1994... developing bias is called developing bias. MN COPYING PROCESS E. the resulting bias is greater than the positive component. The toner has insulating characteristics and becomes positively charged by the friction between the rotating developing cylinder and a blade, where it is...
Service Manual
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...to the photosensitive drum. The copier uses a roller transfer system, which has the following advantages when compared with an increased tendency toward fog- F. CANON PC7201740/750,710 REV.0 AUG.1994 PRINTED IN JAPAN ompnimt AU JAPON) 2 - 5 The copier turns the transfer voltage to positive during post ... on the photosensitive drum fails to transfer to the copy paper because of the transfer drum to transfer toner from the surface of a jam or the like. Any excess toner is moving in reverse, and during initial rotation, while the scanner is repelled by the photosensitive drum...
...to the photosensitive drum. The copier uses a roller transfer system, which has the following advantages when compared with an increased tendency toward fog- F. CANON PC7201740/750,710 REV.0 AUG.1994 PRINTED IN JAPAN ompnimt AU JAPON) 2 - 5 The copier turns the transfer voltage to positive during post ... on the photosensitive drum fails to transfer to the copy paper because of the transfer drum to transfer toner from the surface of a jam or the like. Any excess toner is moving in reverse, and during initial rotation, while the scanner is repelled by the photosensitive drum...
Service Manual
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... the photosensitive drum and copy paper, thereby facilitating separation. Pressure roller Copy paper Figure 2-113 After transfer, the toner image is why the copier's fixing assembly does not have a cleaning mechanism. Fixing (step 6) Copy paper O Fixing heater Thermistor Fixing ...from the photosensitive drum using the rigidity of the fixing heater and serves to make sure that melting toner will not stick to a specific temperature. 2 - 6 COPYRIGHT © 1994 CANON INC. CANON PC720,740/750i770 REY.0 AUG.1994 PRINTEDIN JAPAN DIARIME AU JAPON) MI COPYING PROCESS G. The ...
... the photosensitive drum and copy paper, thereby facilitating separation. Pressure roller Copy paper Figure 2-113 After transfer, the toner image is why the copier's fixing assembly does not have a cleaning mechanism. Fixing (step 6) Copy paper O Fixing heater Thermistor Fixing ...from the photosensitive drum using the rigidity of the fixing heater and serves to make sure that melting toner will not stick to a specific temperature. 2 - 6 COPYRIGHT © 1994 CANON INC. CANON PC720,740/750i770 REY.0 AUG.1994 PRINTEDIN JAPAN DIARIME AU JAPON) MI COPYING PROCESS G. The ...
Service Manual
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COPYING PROCESS= COPYRIGHT 1994 CANON INC CANON PC72017401750770 REV.0 AUG. 19W PRINTED IN JAPAN MAPROJE AU JAPON) 2- 7 I. The scoop-up sheet Figure 2-114 In preparation for the next copy run, the cleaning blade scrapes off the residual toner from the photosensitive drum by way of cleaning the photosensitive drum surface. Drum Cleaning (step 7) Cleaning blade Scoop-up sheet then is used to collect such toner.
COPYING PROCESS= COPYRIGHT 1994 CANON INC CANON PC72017401750770 REV.0 AUG. 19W PRINTED IN JAPAN MAPROJE AU JAPON) 2- 7 I. The scoop-up sheet Figure 2-114 In preparation for the next copy run, the cleaning blade scrapes off the residual toner from the photosensitive drum by way of cleaning the photosensitive drum surface. Drum Cleaning (step 7) Cleaning blade Scoop-up sheet then is used to collect such toner.
Service Manual
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AUXILIARY PROCESS 1. See p. 3-35 for details. 2 - 8 COPYRIGHT © 1994 CANON INC. Side Blank Exposure Side blank exposure is used to prevent adhesion of excess toner to the drum by removing the residual potential in the nonimage areas of the drum. CANON PC720/74017501770 REV.O AUG.1994 PAINTED IN JAPAN omPRimt AU JAPON) IIIIIII COPYING PROCESS II.
AUXILIARY PROCESS 1. See p. 3-35 for details. 2 - 8 COPYRIGHT © 1994 CANON INC. Side Blank Exposure Side blank exposure is used to prevent adhesion of excess toner to the drum by removing the residual potential in the nonimage areas of the drum. CANON PC720/74017501770 REV.O AUG.1994 PAINTED IN JAPAN omPRimt AU JAPON) IIIIIII COPYING PROCESS II.
Service Manual
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... correction swlch (ST101) AE/intensity senso PCB Senso PCB Control panel Figure 3-308 COPYRIGHT © 1994 CANON INC. Controlling the Developing/ Separation Static Eliminator Bias 1. CANON PC72074017501710 REIM AUG.1994 PRINTED IN JAPAN omPFumt AU JAPONI While the photosensitive drum is applied to the developing... cylinder regardless of the position of the density adjusting lever, thereby preventing adhesion of excess toner to the ...
... correction swlch (ST101) AE/intensity senso PCB Senso PCB Control panel Figure 3-308 COPYRIGHT © 1994 CANON INC. Controlling the Developing/ Separation Static Eliminator Bias 1. CANON PC72074017501710 REIM AUG.1994 PRINTED IN JAPAN omPFumt AU JAPONI While the photosensitive drum is applied to the developing... cylinder regardless of the position of the density adjusting lever, thereby preventing adhesion of excess toner to the ...
Service Manual
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... return the toner from the transfer roller to the transfer bias of a conventional copier, and is a negative voltage. c. Reference Bias (ATVC) Changes in the transfer efficiency, the copier corrects the level of the transfer roller, ultimately affecting the transfer efficiency. CANON PC720/74000770 ...Main motor (M1) Cleaning bias Reference bias (ATVC) Transfer bias sec (approx.) U Figure 3-314 3 - 28 COPYRIGHT © 1994 CANON INC. see the descriptions for the function and output timing of the following three types; Cleaning Bias The copier uses a direct charging method...
... return the toner from the transfer roller to the transfer bias of a conventional copier, and is a negative voltage. c. Reference Bias (ATVC) Changes in the transfer efficiency, the copier corrects the level of the transfer roller, ultimately affecting the transfer efficiency. CANON PC720/74000770 ...Main motor (M1) Cleaning bias Reference bias (ATVC) Transfer bias sec (approx.) U Figure 3-314 3 - 28 COPYRIGHT © 1994 CANON INC. see the descriptions for the function and output timing of the following three types; Cleaning Bias The copier uses a direct charging method...
Service Manual
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... side blank exposure lamp A + B (front) Figure 3-324 Reflecting plate A Photosensitive drum Non-image area (REDUCE) A : position of the side blank exposure lamp at time of toner to the drum when reduced copies are made. 2. CANON PC7208401150M0 REIM AUG.1994 PRINTEDIN JAPANoinimt AU JAPONI 3 - 35 OPERATIONS AND TIMINGMUM H.
... side blank exposure lamp A + B (front) Figure 3-324 Reflecting plate A Photosensitive drum Non-image area (REDUCE) A : position of the side blank exposure lamp at time of toner to the drum when reduced copies are made. 2. CANON PC7208401150M0 REIM AUG.1994 PRINTEDIN JAPANoinimt AU JAPONI 3 - 35 OPERATIONS AND TIMINGMUM H.
Service Manual
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... copies. take all measures necessary to 30,000 lux.) O Figure 4-502 3) While disengaging the claw ® of the drum using a cloth coated with toner. Transfer corona Assembly 1. use paper, lint-free or others, to avoid damage to light of 1500 lux (general lighting) for 5 min, it in passing... 3. Reference: If the drum is as strong as 10,000 to avoid exposure. (The direct rays of the drum to soil the roller surface. CANON PC720f7401750/710 REV.O AUG.1994 PRINTEDIN JAPAN1IMPRIME AUJAPON) 4 - 29 B. Rotating it is likely to recover to a level that will displace the leaf ...
... copies. take all measures necessary to 30,000 lux.) O Figure 4-502 3) While disengaging the claw ® of the drum using a cloth coated with toner. Transfer corona Assembly 1. use paper, lint-free or others, to avoid damage to light of 1500 lux (general lighting) for 5 min, it in passing... 3. Reference: If the drum is as strong as 10,000 to avoid exposure. (The direct rays of the drum to soil the roller surface. CANON PC720f7401750/710 REV.O AUG.1994 PRINTEDIN JAPAN1IMPRIME AUJAPON) 4 - 29 B. Rotating it is likely to recover to a level that will displace the leaf ...
Service Manual
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... organic solvent gas. Avoid areas subject to the direct rays of the sun-windows or bright places. CANON PC720.74011501T1R0EV.0 AUG.1994 PRINTEDIN JAPAN (IMPRIME-AUJAPON) MAINTENANCE AND SERVICING IV. The cartridge also contains toner, and it is important to advise the user to handle it with attention to the following: •...
... organic solvent gas. Avoid areas subject to the direct rays of the sun-windows or bright places. CANON PC720.74011501T1R0EV.0 AUG.1994 PRINTEDIN JAPAN (IMPRIME-AUJAPON) MAINTENANCE AND SERVICING IV. The cartridge also contains toner, and it is important to advise the user to handle it with attention to the following: •...
Service Manual
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... about 90° in mind: *Caused by mistake, clean it . f. g. Do not swing it with a flannel cloth coated with a light-blocking shutter. CANON PC720174011501770 REV.0 AUG.1994 PRINTER IN JAPAN (IMPRIME AU JAPONI 6 - 3 e. Keep the cartridge outside of reach of the sun, in passing, is likely to... or use solvent. however, take all measures necessary to touch the photosensitive drum. Do not shake the cartridge in ways not instructed, or toner may disappear when the cartridge is exposed to light of 1500 lux (general lighting) for 5 min and left alone for a long period ...
... about 90° in mind: *Caused by mistake, clean it . f. g. Do not swing it with a flannel cloth coated with a light-blocking shutter. CANON PC720174011501770 REV.0 AUG.1994 PRINTER IN JAPAN (IMPRIME AU JAPONI 6 - 3 e. Keep the cartridge outside of reach of the sun, in passing, is likely to... or use solvent. however, take all measures necessary to touch the photosensitive drum. Do not shake the cartridge in ways not instructed, or toner may disappear when the cartridge is exposed to light of 1500 lux (general lighting) for 5 min and left alone for a long period ...
Service Manual
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oil or toner dirt Hydrocarbon (fluorine/chlorine family) Alcohol 3 Lubricating oil Lubricating spring clutch Mineral oil (paraffin family) 4 Lubricating oil Lubricating Silicone oil drive and friction ...; CK-0451 (10Occ) • CK-0551 (20g) A - 30 COPYRIGHT © 1994 CANONINC. external covers Hydrocarbon (fluorine family) Alcohol Surface active agent Cleaning: e.g., metal; =APPENDIX N. CANON PC720174017501770REV.O AUG.1994 PRINTEDIN JAPAN oMPRIMEAU JAPONI Name Uses Composition 1 Alcohol 2 Solvent Cleaning: e.g., glass, plastic, rubber parts; SOLVENTS/OILS No.
oil or toner dirt Hydrocarbon (fluorine/chlorine family) Alcohol 3 Lubricating oil Lubricating spring clutch Mineral oil (paraffin family) 4 Lubricating oil Lubricating Silicone oil drive and friction ...; CK-0451 (10Occ) • CK-0551 (20g) A - 30 COPYRIGHT © 1994 CANONINC. external covers Hydrocarbon (fluorine family) Alcohol Surface active agent Cleaning: e.g., metal; =APPENDIX N. CANON PC720174017501770REV.O AUG.1994 PRINTEDIN JAPAN oMPRIMEAU JAPONI Name Uses Composition 1 Alcohol 2 Solvent Cleaning: e.g., glass, plastic, rubber parts; SOLVENTS/OILS No.