Canon PC800 Series How to use

COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
REVISION 0
FY8-23B6-000
AUG. 1999
PC860
F13-8491 TYA00001-
PC880
F13-8291 TZA00001-
PC890
F13-8242 UAA00001-
PC920
F13-8431 TVB00001-
F13-8441 PUD00001-
PUE00001-
F13-8461 PUH00001-
PC921
F13-8432 TVC00001-
PC940
F13-8436 TVD00001-
PC941
F13-8437 TVE00001-
PC950
F13-8231 TVF00001-
F13-8241 PUF00001-
PUG00001-
PC960
F13-8434 TVG00001-
PC980
F13-8232 TVH00001-
PC981
F13-8233 TVJ00001-

COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
IMPORTANT
THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE
OF REFERENCE FOR WORK INTHE FIELD.
SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY
FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER
PRINTED MATTER.
ANYQUESTIONSREGARDINGINFORMATIONCONTAINEDHEREINSHOULDBEDIRECTED
TOTHE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.
THIS DOCUMENTATION IS INTENDED FOR ALL SALES AREAS, AND MAY CONTAIN INFOR-
MATION NOT APPLICABLETO CERTAIN AREAS.
COPYRIGHT © 1999 CANON INC.
Printed in Japan
Imprimé au Japon
Use of this manual should be strictly su-
pervised to avoid disclosure of confidential
information.
Prepared by
OFFICE IMAGING PRODUCTSTECHNICAL SUPPORT DIVISION
CANON INC.
5-1, Hakusan 7-chome,Toride-shi, Ibaraki 302-8501 Japan

i
Model
PC860
PC880
PC890
PC920
PC920
PC920
PC920
PC921
PC940
PC941
PC950
PC950
PC950
PC960
PC980
PC981
Type
code
TYA
TZA
UAA
PUD
PUE
PUH
TVB
TVC
TVD
TVE
PUF
PUG
TVF
TVG
TVH
TVJ
Multi-
feeder
√
√
√
√
√
√
√
√
Single
feeder
√
√
√
√
√
√
√
√
Zoom
√
√
√
√
√
√
√
√
√
√
√
√
√
Default
ratio
2R2E
2R2E
2R2E
2R2E
2R2E
2R2E
3R1E
3R1E
3R1E
3R1E
2R2E
2R2E
3R1E
3R1E
3R1E
3R1E
ADF
as
standard
√
√
√
√
Cassette
250 sheets
250 sheets
250 sheets
Universal
Universal
Universal
Universal
Universal
Universal
Universal
Universal
Universal
500 sheets
Universal
500 sheets
500 sheets
Copying
speed
(cpm) at
Direct
12
12
12
10
10
10
10
10
13
13
12
12
13
10
13
13
The notation “√” indicates that the item in question is available.
• This service handbook covers the models shown in the following table. Be sure to have
a good understanding of the difference from model to model before referring to this
handbook.
Density
correction
switch
(SW101)
√
√
√
√
√
√
√
√

ii

iii
CONTENTS
CHAPTER 1 MAINTENANCE AND INSPECTION
CHAPTER 2 STANDARDS AND ADJUSTMENTS
CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF
ELECTRICAL PARTS
A. Periodically Replaced Parts.........1-1
B. Durables and Consumables.........1-1
C. Scheduled Servicing ....................1-1
D. Storing and Handling
the Cratridge ................................1-2
D-1.Storing the Cartridge with
the Packaging Seal Intact ............1-2
D-2.Storing and Handling the Cartridge
with the Packaging Seal
Removed......................................1-3
E. Image Adjustment Basic
Procedure.....................................1-7
F. Points to Note for Servicing .........1-8
A. Mechanical...................................2-1
B. ADF ........................................... 2-26
A. Sensors and Solenoids................3-1
B. Switches.......................................3-2
C. Lamp, Heater, Motor, Etc. ............3-3
D. PCBs ............................................3-4
1
2
3
4
C. Electrical ................................... 2-37
E. ADF ..............................................3-5
F. Variable Resistors (VR) and
Check Pins by PCB......................3-6
CHAPTER 4 SELF DIAGNOSIS
A. Self Diagnosis ..............................4-1
APPENDIX
A. General Timing Chart.................. A-1
B. Signals and Abbreviations .......... A-3
C. General Circuit Diagram ............. A-5
D. Special Tools ............................... A-7
E. Solvents/Oils ............................... A-8
F. Specifications.............................. A-9

CHAPTER 1 MAINTENANCE AND INSPECTION
1-1
CHAPTER 1 MAINTENANCE AND INSPECTION
A. Periodically Replaced Parts
The machine does not have parts which must be replaced on a periodical basis.
B. Durables and Consumables
The machine does not have items designated as durables or consumables.
C. Scheduled Servicing
The machine does not have any parts which require scheduled servicing.
1

CHAPTER 1 MAINTENANCE AND INSPECTION
1-2
D. Storing and Handling the Cartridge
The cartridge is subject to the effects of the environment whether its packing seal is intact or
removed or whether it is inside the machine or otherwise, changing over time regardless of the
number of copies made. The degree of change is highly dependent on the site of installation and
how it is maintained, and no general rule may be drawn; however, it is important to exercise care
when storing or handling it.
D-1. Storing the Cartridge with the Packaging Seal Intact
If you are storing the cartridge in a warehouse or workshop, be sure that the environment is as
indicated in Table 1-1; in addition, keep the following in mind:
• Avoid direct rays of the sun.
• Avoid vibration.
• Do not subject it to impact (as by hitting or dropping it).
Table 1-1 Temperature/Humidity Conditions for Storage
Temperature
between -20°C/-4°F and 40°C/104°F Humidity 90% or less
between 0°C/32°F and 35°C/95°F
between 35°C/95°F and 45°C/113°F
between -20°C/-4°F and 0°C/32°F
from 40°C/104°F to 15°C/59°F
from -20°C/-4°F to 25°C/77°F
between 35% and 85% RH
between 85% and 95% RH
between 10% and 35% RH
between 613.3 and 1013.3
(hPa; 0.6 to 1 atm)
Temperature
Normal (9/10 of entire storage period)
Harsh (1/10 of entire storage period)
Temperature changes (within 3-min period; approx.)
Normal (9/10 of entire storage period)
Harsh (1/10 of entire storage period)
Atmospheric pressure
High temperature
Low temperature
Humidity
High humidity
Low humidity
Table 1-2 Conditions for Transportation

CHAPTER 1 MAINTENANCE AND INSPECTION
1-3
D-2. Storing and Handling the Cartridge with the Packaging Seal
Removed
The photosensitive medium is an organic photoconducting (OPC) material, which would dete-
riorate if subjected to storing light.
The cartridge also holds toner, requiring the user to exercise care when storing or handling it.
(Be sure that the user stores it in an appropriate storage box for storage.)
1. Storage after Removing the Packaging Seal
a. Avoid areas subject to the direct rays of the sun, i.e., near a window. Do not keep it in a car for
a long time, as it will be subjected to an extremely high temperature. (This applies even if the
cartridge is inside a protective box.)
b. Avoid areas subjected to high or low temperature/humidity or where temperature or humidity
tends to change abruptly (e.g., near an air conditioner).
c. Avoid areas subject to dust, ammonium gas, or organic solvent.
d. Make sure that the cartridge is stored at 40°C/104°F or lower.

CHAPTER 1 MAINTENANCE AND INSPECTION
1-4
2. Handling the Cartridge
a. Before setting the cartridge in the machine or if copies have white spots as when it starts to run
out of toner, hold the cartridge level and shake it about 90° several times as shown in Figure 1-
1 to even out the toner inside.
If you shake it in a different way, the toner can spill out of the developing assembly or the
cleaning assembly.
Figure 1-1
b. Do not place the cartridge on its end or turn it over as shown in Figure 1-2.
Figure 1-2