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Service Manual - Page 1
PET2C11T4CO MOTO
SERVICE MANUAL
REVISION 0
AUG. 1994
COPYRIGHT © 104 CANON INC,
Canon
FY8-13DA-000
CANON PC774740750770 REV.° AMIE% PRINTED 1N JAPANRAPAIIAE AU JAPON)
Service Manual - Page 3
... also available for troubleshooting problems in the copier.
-Note: The contents of this manual, Service Handbook, and Service Information Bulletins, for the following chapters: In CHAPTER 1, "GENERAL DESCRIPTION," a brief discussion of the copier's features, specifications, and an explanation of its operation, disassembly, reassembly, and adjustment.
This Service Manual consists of the...
Service Manual - Page 6
PERIODICALLY REPLACED
PARTS
6-1
II. GENERAL TIMING CHART
A-1
B. SIGNALS AND
ABBREVIATIONS
A-2
C. COMPOSITE POWER SUPPLY
CIRCUIT DIAGRAM
A-13
F. INTENSITY/AE SENSOR
CIRCUIT DIAGRAM
A-23
H. NOISE FILTER CIRCUIT
DIAGRAM
A-25
J. BLANK EXPOSURE (front)
CIRCUIT DIAGRAM
A-27
L.
CANON PC720R401750R70 REVD AUG.1994 PRINTEDINJAPAN 0NPRIME AU JAPON) SCHEDULED SERVICING
6-1
IV....
Service Manual - Page 9
... -
COPYRIGHT @ 1994 CANON INC. Cassette accommodating various types of paper and 2-way pick-up. • The universal cassette (about 250 sheets) accommodates paper of existing machines)
3. Separate top unit. • The copier's top unit may be opened to business card may be given an extra finish.
7.
Fixed copyboard with a color toner cartridge (red, blue, green...
Service Manual - Page 10
...Roller (direct charging)
Exposure
Slit (moving light source)
Copy density adjustment Automatic (AE) or manual
Development
Dry
Auto Pick-up
Manual
Cassette (1 holder) Singlefeeder
Multifeeder
Separation
Curvature separation + static eliminator
Fixing
Flat heater
Cleaning
Blade
Original orientation
Center reference (copyboard)
PC770 PC770
1 - 2
COPYRIGHT © 1994 CANON INC.
Service Manual - Page 11
... size
A4R/LGL (max.), business card (min.)
Cassette
Plain paper (64 to 80 g/m2), tracing paper (SM-1), colored paper
Copy paper type
Single manual feeding
Plain paper (52 to A5/STM (universal)
Multifeeder tray
5 mm /1.96 in . about 5 min; fixed)
*As recommended by Canon.
or more )
Two-sided/ Manual Plain paper (60 to 1.410...
Service Manual - Page 12
...85% or less. 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.
reference only)
Noise ...I A5R A4R
A4R
II B5R .- CANON PC7201740/750R70 REV.O AUG. 1994 PRINTED IN JAPAN (MPRIME AU JAPAN) =GENERAL DESCRIPTION
4. about 5 min; Consumables
Toner
Avoid direct sunshine; Others
Item
PC720
...
Service Manual - Page 19
...Set the copy count you may set more than one is left alone for about 5 min without further key operation, automatically turning off mechanism becomes activated if the copier is delivered. COPYRIGHT © 1994 CANON.../Stop key; a. When you want to manually adjust the copy density, deselect AE, and...Transparencies (PC720/740) 1) Shift the delivery guide plate on the copyboard, and close the ...
Service Manual - Page 24
... 1-415
Figure 1-413
2) Set the cartridge in the copier, and make a copy. If the copy image fails to return to normal, • Replace the cartridge according to open /close lever to the instructions under "2. Replacing the Cartridge
1. see Figure 1-409. Replacing the Cartridge 1) Shift up the open the
body. Figure 1-414 2) Slide the old cartridge out of
toner, the copy image will...
Service Manual - Page 26
... (AE or manual), you may switch among three copy density settings using the Density Correction switch. 1) Shift up . *Be sure to clean the following parts:
1. If the dirt cannot be soiled or copy paper tends to jam frequently, advise the user to wring it .
b. Cassette pick-up roller has dried completely. O
G. CANON PC720/7408EORT0...
Service Manual - Page 56
...DC
controller PCB receives such instructions as copying modes and ...driver circuit
SC-A SC-A*
Q.9 SC-B SC-B` g M2
Figure 3-207
3 - 16
COPYRIGHT © 1994 CANONINC.
The current switching circuit sets...CANON PC7207401150IT10REV.0 AUG.1994 PRINTEDINJAPAN(mput AU JAPAN) and, in response, it . Outline
The scanner motor (M2) is used to control the rated current according to the setting...
Service Manual - Page 145
...copier's top body, and remove the cartridge.
2) Put the cartridge upside down, and open the drum shutter.
3) Clean the surface of the drum to soil the roller surface. The drum must always bp rotated in the direction it in the opposite direction will not cause any practical problems... © 1994 CANON INC.
Do not...toner. MECHANICAL SYSTEM!
2. B. however, take care not to light.
Service Manual - Page 163
... oMPRIME AU JAPON)
6 - 1 II.
SCHEDULED SERVICING
The copier has no part that must be replaced on a periodical basis. DURABLES AND CONSUMABLES
The copier does not have a part to be serviced on a periodical basis.
MAINTENANCE AND SERVICINGMI
PERIODICALLY REPLACED PARTS
The copier does not have a part classified as a durable or consumable part. COPYRIGHT © 1994 CANON INC.
Service Manual - Page 164
... or installed in ...cartridge at 40°C or less.
6 - 2
COPYRIGHT 1994 CANONINC.
Make sure that the conditions in the copier, and its properties change rapidly; b. e.g., near refrigerators. Storing after Removing the Seal a. CANON PC720.74011501T1R0EV.0 AUG.1994 PRINTEDIN JAPAN (IMPRIME-AUJAPON) MAINTENANCE AND SERVICING... The cartridge also contains toner, and it is ...
Service Manual - Page 165
....1994 PRINTER IN JAPAN (IMPRIME AU JAPONI
6 - 3
Work quickly when removing jams or replacing the cartridge.
2. If you soiled the surface of the sun, in Figure 6-401 and rotate it . Do not dry wipe it unprotected. MAINTENANCE AND SERVICING
2.
Do not ever leave it or use solvent. Handling a. Before setting the cartridge to the copier
or if...
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