Service Manual
Page 3
... - Copying speed (cpm) 8 10 10 12 COPYRIGHT © 1994 CANON INC. CHAPTER 2 "COPYING PROCESS" deals with the inner workings of the copier associated with the generation of replacement parts and consumables. In CHAPTER 4, "MECHANICAL SYSTEM," the copier's mechanical system is discussed ...JAPAN omput AU JAPON) CHAPTER 6 "MAINTENANCE AND SERVICING" contains tables of copies. This Service Manual consists of the following respects: Model PC720 PC740 PC750 PC770 Singlefeeding (manual) - - CHAPTER 5 "INSTALLATION" gives step-by-step instructions for installing the copier together ...
... - Copying speed (cpm) 8 10 10 12 COPYRIGHT © 1994 CANON INC. CHAPTER 2 "COPYING PROCESS" deals with the inner workings of the copier associated with the generation of replacement parts and consumables. In CHAPTER 4, "MECHANICAL SYSTEM," the copier's mechanical system is discussed ...JAPAN omput AU JAPON) CHAPTER 6 "MAINTENANCE AND SERVICING" contains tables of copies. This Service Manual consists of the following respects: Model PC720 PC740 PC750 PC770 Singlefeeding (manual) - - CHAPTER 5 "INSTALLATION" gives step-by-step instructions for installing the copier together ...
Service Manual
Page 5
... AND CLEANING SYSTEMS 4-28 III. PICK-UP/FEEDING SYSTEM 4-17 VI. RELOCATING THE COPIER 5-7 5-2 COPYRIGHT © 1994 CANON INC. NAMES OF PARTS 1-6 1-2 IV. BASIC OPERATION 3-1 VI. STANDARDS AND III. FIXING SYSTEM 4-30 IV. EXPOSURE SYSTEM 4-26 VII. POWER ... FORMATION SYSTEM 3-17 ADJUSTMENTS 3-64 IV. EXTERNALS 4-1 V. UNPACKING AND INSTALLATION 5-1 III. SELF DIAGNOSIS 3-71 V. SELECTING THE SITE II. CANON PC7201740,11501170 REV.O AUG. 1994 PRINTED IN JAPAN (IMPRIME AU JAPON) CHARGING, DEVELOPING, II. IMAGE FORMATION 2-1 II. EXPOSURE SYSTEM 3-11...
... AND CLEANING SYSTEMS 4-28 III. PICK-UP/FEEDING SYSTEM 4-17 VI. RELOCATING THE COPIER 5-7 5-2 COPYRIGHT © 1994 CANON INC. NAMES OF PARTS 1-6 1-2 IV. BASIC OPERATION 3-1 VI. STANDARDS AND III. FIXING SYSTEM 4-30 IV. EXPOSURE SYSTEM 4-26 VII. POWER ... FORMATION SYSTEM 3-17 ADJUSTMENTS 3-64 IV. EXTERNALS 4-1 V. UNPACKING AND INSTALLATION 5-1 III. SELF DIAGNOSIS 3-71 V. SELECTING THE SITE II. CANON PC7201740,11501170 REV.O AUG. 1994 PRINTED IN JAPAN (IMPRIME AU JAPON) CHARGING, DEVELOPING, II. IMAGE FORMATION 2-1 II. EXPOSURE SYSTEM 3-11...
Service Manual
Page 6
... HANDLING/STORING THE CARTRIDGE 6-2 APPENDIX A. SENSOR CIRCUIT DIAGRAM.... BLANK EXPOSURE (front) CIRCUIT DIAGRAM A-27 L. PERIODICALLY REPLACED PARTS 6-1 II. GENERAL TIMING CHART A-1 B. BLANK EXPOSURE (rear) CIRCUIT DIAGRAM A-28 M. SOLVENTS/OILS A-30 D COPYRIGHT © 1994 CANON INC. CANON PC720R401750R70 REVD AUG.1994 PRINTEDINJAPAN 0NPRIME AU JAPON) A-3 D. INTENSITY/AE SENSOR CIRCUIT DIAGRAM A-23 H. NOISE FILTER CIRCUIT...
... HANDLING/STORING THE CARTRIDGE 6-2 APPENDIX A. SENSOR CIRCUIT DIAGRAM.... BLANK EXPOSURE (front) CIRCUIT DIAGRAM A-27 L. PERIODICALLY REPLACED PARTS 6-1 II. GENERAL TIMING CHART A-1 B. BLANK EXPOSURE (rear) CIRCUIT DIAGRAM A-28 M. SOLVENTS/OILS A-30 D COPYRIGHT © 1994 CANON INC. CANON PC720R401750R70 REVD AUG.1994 PRINTEDINJAPAN 0NPRIME AU JAPON) A-3 D. INTENSITY/AE SENSOR CIRCUIT DIAGRAM A-23 H. NOISE FILTER CIRCUIT...
Service Manual
Page 26
INNGENERAL DESCRIPTION F. rection switch. If Images Are Soiled a. then, dry wipe it . CANON PC720/7408EORT0 REVS AUG. 1994 PRINTED IN JAPAN tIMPRIME AU JAPONI O G. If the dirt cannot be ... 2) Open the right cover. 3) Keep the separation pad down, wipe the cassette pick-up . *Be sure to clean the following parts: 1. Cassette pick-up roller has dried completely. Using the Density Correction Switch If the copy density is too high, i.e., the image ...not make copies until the cassette pick-up roller Separation pad Figure 1-421 1 - 18 COPYRIGHT © 1994 CANON INC.
INNGENERAL DESCRIPTION F. rection switch. If Images Are Soiled a. then, dry wipe it . CANON PC720/7408EORT0 REVS AUG. 1994 PRINTED IN JAPAN tIMPRIME AU JAPONI O G. If the dirt cannot be ... 2) Open the right cover. 3) Keep the separation pad down, wipe the cassette pick-up . *Be sure to clean the following parts: 1. Cassette pick-up roller has dried completely. Using the Density Correction Switch If the copy density is too high, i.e., the image ...not make copies until the cassette pick-up roller Separation pad Figure 1-421 1 - 18 COPYRIGHT © 1994 CANON INC.
Service Manual
Page 92
The fixing film displacement correction mechanism consists of the following four parts: • tension roller • swing arm • tension wire • balance spring Displacement, if any, of the fixing film is corrected by moving . If the ...) Drive roller Fixing film PS4 FFD DC controller PCB (front) Tension roller Swing arm Tension wire Balance spring Figure 3-415 3 - 52 COPYRIGHT © 1994 CANON INC. CANON PC720114050/770 REV.O AUG.1994 PRINTEDIN JAPAN omplut AU JAPON) when the fixing film has become displaced toward the rear, the copier moves up and...
The fixing film displacement correction mechanism consists of the following four parts: • tension roller • swing arm • tension wire • balance spring Displacement, if any, of the fixing film is corrected by moving . If the ...) Drive roller Fixing film PS4 FFD DC controller PCB (front) Tension roller Swing arm Tension wire Balance spring Figure 3-415 3 - 52 COPYRIGHT © 1994 CANON INC. CANON PC720114050/770 REV.O AUG.1994 PRINTEDIN JAPAN omplut AU JAPON) when the fixing film has become displaced toward the rear, the copier moves up and...
Service Manual
Page 104
Actions to Take After Replacement Part Work Scanning lamp 1. adjust the intensity of the scanning lamp 2. INNOPERATIONS AND TIMING VII. execute AE adjustment Intensity/AE sensor PCB 1. adjust the leading ...PCB 1. execute AE adjustment DC controller PCB 1. fine-adjust reproduction ratio Table 3-701 3 - 64 COPYRIGHT © 1994 CANON INC. adjust the intensity of the scanning lamp 2. adjust the intensity of the scanning lamp 2. CANON PC720/740850/770 REV.O AUG. 1994 PRINTED IN JAPAN (IMPRIME AU JAPAN) image leading edge margin 5. STANDARDS AND ADJUSTMENTS 1....
Actions to Take After Replacement Part Work Scanning lamp 1. adjust the intensity of the scanning lamp 2. INNOPERATIONS AND TIMING VII. execute AE adjustment Intensity/AE sensor PCB 1. adjust the leading ...PCB 1. execute AE adjustment DC controller PCB 1. fine-adjust reproduction ratio Table 3-701 3 - 64 COPYRIGHT © 1994 CANON INC. adjust the intensity of the scanning lamp 2. adjust the intensity of the scanning lamp 2. CANON PC720/740850/770 REV.O AUG. 1994 PRINTED IN JAPAN (IMPRIME AU JAPAN) image leading edge margin 5. STANDARDS AND ADJUSTMENTS 1....
Service Manual
Page 105
...that the intensity of the scanning lamp has been properly adjusted. avoid one with even density; CANON PC7201740R50M0 REV.O AUG.1994 PRINTED IN JAPAN ompagit AU JAPON) 3 - 65 COPYRIGHT © 1994 CANON INC. Caution; • Check gray scale No. 10 if you are using NB-3. ... is barely visible. Adjusting the Intensity of the Scanning Lamp Adjust the intensity of the scanning lamp whenever you have replaced any of the following parts: • DC controller PCB • composite power supply PCB • AE/intensity sensor PCB • scanning lamp Preparing for Adjustment •...
...that the intensity of the scanning lamp has been properly adjusted. avoid one with even density; CANON PC7201740R50M0 REV.O AUG.1994 PRINTED IN JAPAN ompagit AU JAPON) 3 - 65 COPYRIGHT © 1994 CANON INC. Caution; • Check gray scale No. 10 if you are using NB-3. ... is barely visible. Adjusting the Intensity of the Scanning Lamp Adjust the intensity of the scanning lamp whenever you have replaced any of the following parts: • DC controller PCB • composite power supply PCB • AE/intensity sensor PCB • scanning lamp Preparing for Adjustment •...
Service Manual
Page 115
.... 2. EXTERNALS II. FIXING SYSTEM VII. be sure to ensure electric continuity; The fixing screw for the grounding wire and varistors is the reverse of its parts removed. 5. CANON PC/2074005770 REV.0 ma 1991 PRINTED IN JAPAN input AU JAPON, 4-28 4-30 4-33 PICK-UP/FEEDING SYSTEM IV. CHARGING, DEVELOPING, AND CLEANING SYSTEMS...
.... 2. EXTERNALS II. FIXING SYSTEM VII. be sure to ensure electric continuity; The fixing screw for the grounding wire and varistors is the reverse of its parts removed. 5. CANON PC/2074005770 REV.0 ma 1991 PRINTED IN JAPAN input AU JAPON, 4-28 4-30 4-33 PICK-UP/FEEDING SYSTEM IV. CHARGING, DEVELOPING, AND CLEANING SYSTEMS...
Service Manual
Page 161
SCHEDULED SERVICING 6-1 IV. DURABLES AND CONSUMABLES 6-1 III. POINTS TO NOTE WHEN HANDLING/STORING THE CARTRIDGE 6-2 COPYRIGHT@ 1994 CANONRC COON PertrOVW50770 REV.O AUG.1994 PAINTEDIN JAPAN FALPPoitE AU10040 PERIODICALLY REPLACED PARTS 6-1 II. CHAPTER 6 MAINTENANCE AND SERVICING I.
SCHEDULED SERVICING 6-1 IV. DURABLES AND CONSUMABLES 6-1 III. POINTS TO NOTE WHEN HANDLING/STORING THE CARTRIDGE 6-2 COPYRIGHT@ 1994 CANONRC COON PertrOVW50770 REV.O AUG.1994 PAINTEDIN JAPAN FALPPoitE AU10040 PERIODICALLY REPLACED PARTS 6-1 II. CHAPTER 6 MAINTENANCE AND SERVICING I.
Service Manual
Page 163
MAINTENANCE AND SERVICINGMI PERIODICALLY REPLACED PARTS The copier does not have a part classified as a durable or consumable part. CANON PC720/140R50M0 REU AUG.1994 PRINTEDIN JAPAN oMPRIME AU JAPON) 6 - 1 DURABLES AND CONSUMABLES The copier does not have a part to be serviced on a periodical basis. SCHEDULED SERVICING The copier has no part that must be replaced on a periodical basis. COPYRIGHT © 1994 CANON INC. III. II.
MAINTENANCE AND SERVICINGMI PERIODICALLY REPLACED PARTS The copier does not have a part classified as a durable or consumable part. CANON PC720/140R50M0 REU AUG.1994 PRINTEDIN JAPAN oMPRIME AU JAPON) 6 - 1 DURABLES AND CONSUMABLES The copier does not have a part to be serviced on a periodical basis. SCHEDULED SERVICING The copier has no part that must be replaced on a periodical basis. COPYRIGHT © 1994 CANON INC. III. II.
Service Manual
Page 198
SOLVENTS/OILS No. CANON PC720174017501770REV.O AUG.1994 PRINTEDIN JAPAN oMPRIMEAU JAPONI external covers Hydrocarbon (fluorine family) Alcohol Surface active agent Cleaning: e.g., metal; Name Uses Composition 1 Alcohol 2 Solvent Cleaning: e.g., glass, plastic, rubber parts; =APPENDIX N. oil or toner dirt Hydrocarbon...Alcohol 3 Lubricating oil Lubricating spring clutch Mineral oil (paraffin family) 4 Lubricating oil Lubricating Silicone oil drive and friction parts, scanner rail Remarks • Do not bring near fire. • Procure locally. • Isopropyl alcohol may ...
SOLVENTS/OILS No. CANON PC720174017501770REV.O AUG.1994 PRINTEDIN JAPAN oMPRIMEAU JAPONI external covers Hydrocarbon (fluorine family) Alcohol Surface active agent Cleaning: e.g., metal; Name Uses Composition 1 Alcohol 2 Solvent Cleaning: e.g., glass, plastic, rubber parts; =APPENDIX N. oil or toner dirt Hydrocarbon...Alcohol 3 Lubricating oil Lubricating spring clutch Mineral oil (paraffin family) 4 Lubricating oil Lubricating Silicone oil drive and friction parts, scanner rail Remarks • Do not bring near fire. • Procure locally. • Isopropyl alcohol may ...