COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON SmartBase PC1200s/iR1200s REV. 0 DEC. 2001
CHAPTER 7 TROUBLESHOOTING
7-18
2.Troubleshooting
A fault that can occur in the machine may be one of the following three: an image fault, a
malfunction, a feeding fault.
If a fault occurs, make initial checks first; then, isolate the problem according to the
troubleshooting flow chart, and take appropriate action with the following in mind:
2.1 Making Initial Checks
1. If you are using a specific terminal of a connector to measure voltage, be
sure to check that the connector is not suffering from poor contact.
2. If you are handling a PCB or the contact sensor, be sure to touch a metal
portion of the machine before starting the work to avoid static damage.
3. The machine’s laser scanner unit cannot be adjusted in the field. Do not
disassemble it.
2.1.1 Site Environment
a. The power source must provide the rated voltage ±10%.
b. The site must be free of high temperature/humidity (not near a water faucet, water
boiler, humidifier), and must not be in a cold place, near a source of fire, or subject to
dust.
c. The site must be free of ammonium gas.
d. The site must be free of direct rays of the sun; otherwise, it must be provided with cur-
tains.
e. The site must be well ventilated.
f.
The machine must be level.
g. If the machine is equipped with fax functions, it must remain powered day and night.
2.1.2 Checking the Cartridge
If the surface of the photosensitive drum has scratches, replace the cartridge.
2.1.3 Checking the Paper
a. Is the paper of a recommended type?
b. Is the paper moist? Try fresh paper out of package.
2.1.4 Others
When a machine is brought from a cold to warm place, its inside can start to develop con-
densation, leading to various problems; for example,
a. condensation in the charging roller system tends to cause electrical leakage.
b. condensation on the pickup/feed path tends to cause a feeding fault.
If condensation occurs, dry wipe the parts or leave the machine ON for 60 min.
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