Service Manual
Page 3
...in the field. Multifeeding (manual) - Copying speed (cpm) 8 10 10 12 COPYRIGHT © 1994 CANON INC. This Service Manual consists of the following respects: Model PC720 PC740 PC750 PC770 Singlefeeding (manual) - - All service persons are given. INTRODUCTION This Service Manual contains the basic facts ...copier PC720/740/750/770, and is compiled to serve as a handy reference for troubleshooting problems in the copier. -Note: The contents of this manual may be updated from each step. CHAPTER 2 "COPYING PROCESS" deals with the inner workings of its operation, disassembly...
...in the field. Multifeeding (manual) - Copying speed (cpm) 8 10 10 12 COPYRIGHT © 1994 CANON INC. This Service Manual consists of the following respects: Model PC720 PC740 PC750 PC770 Singlefeeding (manual) - - All service persons are given. INTRODUCTION This Service Manual contains the basic facts ...copier PC720/740/750/770, and is compiled to serve as a handy reference for troubleshooting problems in the copier. -Note: The contents of this manual may be updated from each step. CHAPTER 2 "COPYING PROCESS" deals with the inner workings of its operation, disassembly...
Service Manual
Page 16
.../Stop key Description Use it to default". *Default Mode Reproduction ratio: 100% Copy count: 1 Paper select: cassette Copy density: AE Table 1-401a 1- 8 COPYRIGHT © 1994 CANON INC. OPERATIONS A. Control Panel O 0 ®® O O O AMA 1404 Irmecr mosq INARGAI86% 0 0. 10.00770% 0 .100 0 ZOOM /0 -0 ® O O 0 Figure...Indicates the copy count or reproduction ratio. 100 (max.; CANON PC720740/7501770 REV.0 AUG.1994 PRINTED IN JAPAN (IMPRIME AU JAPAN) Stops copying or returns the copy mode to manually adjust the copy density. Remarks Turns on when AE is...
.../Stop key Description Use it to default". *Default Mode Reproduction ratio: 100% Copy count: 1 Paper select: cassette Copy density: AE Table 1-401a 1- 8 COPYRIGHT © 1994 CANON INC. OPERATIONS A. Control Panel O 0 ®® O O O AMA 1404 Irmecr mosq INARGAI86% 0 0. 10.00770% 0 .100 0 ZOOM /0 -0 ® O O 0 Figure...Indicates the copy count or reproduction ratio. 100 (max.; CANON PC720740/7501770 REV.0 AUG.1994 PRINTED IN JAPAN (IMPRIME AU JAPAN) Stops copying or returns the copy mode to manually adjust the copy density. Remarks Turns on when AE is...
Service Manual
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...copies. 1 - 10 COPYRIGHT © 1994 CANON INC. CANON PC7207401750r/70 REV.O AUG.1994 PRINTED IN JAPAN (IMPRIME AU JAPAN) Place the original so that the ")/0' notation on the Copy Count/Ratio indicator has turned off mechanism becomes activated to manual density adjustment mode between 70% and 141% in... lever will be made automatically. however, you cannot switch from automatic density adjustment mode to automatically turn off the power if no key is operated in about 5 min. 2) Lift the copyboard cover, and place an original face down the copyboard cover. a. Figure 1-402 3) If ...
...copies. 1 - 10 COPYRIGHT © 1994 CANON INC. CANON PC7207401750r/70 REV.O AUG.1994 PRINTED IN JAPAN (IMPRIME AU JAPAN) Place the original so that the ")/0' notation on the Copy Count/Ratio indicator has turned off mechanism becomes activated to manual density adjustment mode between 70% and 141% in... lever will be made automatically. however, you cannot switch from automatic density adjustment mode to automatically turn off the power if no key is operated in about 5 min. 2) Lift the copyboard cover, and place an original face down the copyboard cover. a. Figure 1-402 3) If ...
Service Manual
Page 19
...Using Transparencies (PC720/740) 1) Shift the delivery guide plate on the singlefeeder. • You must not set the ratio between 70% and 141% in 1% increments. After copying operation is over,... operation, automatically turning off when the top unit is left alone for removal of the jam.) g. MIN. 70% (Inch- E lBm51"1.- configuration 5) Place a single transparency on the copy tray upright. CANON ...run is delivered. When you press the Zoom key, you want to manually adjust the copy density, deselect AE, and operate the Copy Density Adjust lever. 4) Press the Default Ratio key or...
...Using Transparencies (PC720/740) 1) Shift the delivery guide plate on the singlefeeder. • You must not set the ratio between 70% and 141% in 1% increments. After copying operation is over,... operation, automatically turning off when the top unit is left alone for removal of the jam.) g. MIN. 70% (Inch- E lBm51"1.- configuration 5) Place a single transparency on the copy tray upright. CANON ...run is delivered. When you press the Zoom key, you want to manually adjust the copy density, deselect AE, and operate the Copy Density Adjust lever. 4) Press the Default Ratio key or...
Service Manual
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...when the transparency has disappeared into the machine in 1% increments. hang on the Copy Start key. When you want. LTR 78% . b. configuration CANON PC12017401750M0 REV.0 AUG. 1994 PRINTED IN JAPAN (IMPRIME AU JAPON) Figure 1-405 Figure 1-406 2) Place an original on the copyboard, and close ...the copyboard cover. 3) If you want to manually adjust the copy density, deselect AE, and operate the Copy Density Adjust lever. 4) Press the Default Ratio key or Zoom Mode key to suit the reproduction ratio you...
...when the transparency has disappeared into the machine in 1% increments. hang on the Copy Start key. When you want. LTR 78% . b. configuration CANON PC12017401750M0 REV.0 AUG. 1994 PRINTED IN JAPAN (IMPRIME AU JAPON) Figure 1-405 Figure 1-406 2) Place an original on the copyboard, and close ...the copyboard cover. 3) If you want to manually adjust the copy density, deselect AE, and operate the Copy Density Adjust lever. 4) Press the Default Ratio key or Zoom Mode key to suit the reproduction ratio you...
Service Manual
Page 67
Developing biasDC component (V) Manual Density Mode Figure 3-311 Position of SW101 Right Center Left AE Mode Figure 3-312 -300 - -400 - -500 - OPERATIONS AND TIMING= a. Color Developing Assembly Test Chart 0 Density of Newspaper original -100 - -200 - -300 - -... PSoWsition of SW101 Right Center Left COPYRIGHT C 1994 CANONINC. V Developing bias DC component (V) Manual Mode Figure 3-313 Position of Right Center Left V Developing bias DC component {V) AE Mode Figure 3-310 b. CANON PC7201740R50/770 REV.0 AUG. 1994 PRINTED IN JAPAN OMPRIME AU JAPON) 3 - 27 Black ...
Developing biasDC component (V) Manual Density Mode Figure 3-311 Position of SW101 Right Center Left AE Mode Figure 3-312 -300 - -400 - -500 - OPERATIONS AND TIMING= a. Color Developing Assembly Test Chart 0 Density of Newspaper original -100 - -200 - -300 - -... PSoWsition of SW101 Right Center Left COPYRIGHT C 1994 CANONINC. V Developing bias DC component (V) Manual Mode Figure 3-313 Position of Right Center Left V Developing bias DC component {V) AE Mode Figure 3-310 b. CANON PC7201740R50/770 REV.0 AUG. 1994 PRINTED IN JAPAN OMPRIME AU JAPON) 3 - 27 Black ...
Service Manual
Page 91
... fuse exceeds 226°C and remains so for a specific period of paper is maintained until copying is over. CANON PC720/740/7501770 REV.() AUG. 1994 PRINTED IN JAPAN piPoit AU JAPAN) 3 - 51 er. if it detects ... the control panel if the power switch is retained only about 5 min or more , copying operation is increased (12 to 8 cpm), thereby decreasing the supply power to the fixing heater to .... The data for overheating. If you have turned on the power switch about 5 min; In multifeeder manual mode, if the detected temperature of the main thermistor (TH1) is 190°C or less for the...
... fuse exceeds 226°C and remains so for a specific period of paper is maintained until copying is over. CANON PC720/740/7501770 REV.() AUG. 1994 PRINTED IN JAPAN piPoit AU JAPAN) 3 - 51 er. if it detects ... the control panel if the power switch is retained only about 5 min or more , copying operation is increased (12 to 8 cpm), thereby decreasing the supply power to the fixing heater to .... The data for overheating. If you have turned on the power switch about 5 min; In multifeeder manual mode, if the detected temperature of the main thermistor (TH1) is 190°C or less for the...