COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4-1 T
1 Making Initial Checks
1.1 Checking the Site of Installation
1. There must be a source of power rated as indicated (rated voltage ± 10%). The source
must be exclusively of the machine, and the power plug must remain connected through-
out the night.
2. The machine must not be in a high-temperature/-humidity area (near a water faucet, wa-
ter boiler, humidifier), must not be cold or subject to dust. There must not be a source of
fire nearby.
3. The machine must not be subjected to ammonium gas.
4. The machine must not be subjected to the direct rays of the sun; as necessary, curtains
must be provided.
5. The room must be well ventilated.
6. The floor must be flat to keep the machine level.
7. The source of power must provide power night and day.
Check the sight against the above requirements.
1.2 Checking the Originals
Check to find out if the symptom is caused by the originals used or by the machine:
1. The copy density is optimum if set to index 5 ± 1.
2. Originals with a reddish tone tend to prevent reproduction of good contrast.
3. Originals of specific densities can produce copies that can be mistaken as faulty.
Memo
•
An original with a reddish tint can produce copies with poor contrast.
•
Diazo copies used as originals or originals with a high degree of trans-
parency can produce copies that can be mistaken as “light copies.”
•
Originals prepared in pencil or with a greenish tint can produce copies
that can be mistaken as “light copies.”
1.3 Checking the ADF Platen, Copyboard cover, and
Copyboard glass (standard white plate)
If the ADF platen, copyboard cover, or copyboard glass is soiled, clean it with a solution
of mild detergent; if scratched, replace it.
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