Canon PC740 Service Manual - Page 40

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Section	Page
PC720/740/740/770 SERVICE MANUAL	1
CONTENTS	5
CHAPTER 1	7
I. FEATURES	9
II. SPECIFICATIONS	10
III. NAMES OF PARTS	14
IV. OPERATIONS	16
CHAPTER 2	29
I. IMAGE FORMATION	31
II. AUXILIARY PROCESS	38
CHAPTER 3	39
I. BASIC OPERATION	41
II. EXPOSURE SYSTEM	51
III. IMAGE FORMATION SYSTEM	57
IV. PICK-UP/FEEDING SYSTEM	76
V. FAN	99
VI. POWER SUPPLY	100
VII. STANDARDS AND ADJUSTMENTS	104
VIII. SELF DIAGNOSIS	111
CHAPTER 4	115
I. EXTERNALS	117
II. DRIVE SYSTEM	121
III. PICK-UP/FEEDING SYSTEM	133
IV. EXPOSURE SYSTEM	142
V. CHARGING/DEVELOPING/CLEANING SYSTEM	144
VI. FIXING SYSTEM	146
VII. ELECTRICAL SYSTEM	149
CHAPTER 5	151
I. SELECTING THE SITE	153
II. UNPACKING AND INSTALLATION	154
III. RELOCATING THE COPIER	159
CHAPTER 6	161
I. PERIODICALLY REPLACED PARTS	163
II. DURABLES AND CONSUMABLES	163
III. SCHEDULED SERVICING	163
IV. POINTS TO NOTE WHEN HANDLING/STORING THE CARTRIDGE	164
APPENDIX	167
A. GENERAL TIMING CHART	169
B. SIGNALS AND ABBREVIATIONS	170
C. GENERAL CIRCUIT DIAGRAM	171
D. DC CONTROLLER CIRCUIT DIAGRAM	173
E. COMPOSITE POWER SUPPLY CIRCUIT DIAGRAM	181
F. CONTROL PANEL CIRCUIT DIAGRAM	189
G. INTENSITY/AE SENSOR CIRCUIT DIAGRAM	191
H. SENSOR CIRCUIT DIAGRAM	192
I. NOISE FILTER CIRCUIT DIAGRAM	193
J. HIGH VOLTAGE CONTACT CIRCUIT DIAGRAM	194
K. BLANK EXPOSURE (FRONT) CIRCUIT DIAGRAM	195
L. BLANK EXPOSURE (REAR) CIRCUIT DIAGRAM	196
M. SPECIAL TOOLS	197

Canon PC740 Service Manual - Page 40

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