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3-4
CHAPTER 3 IMAGE TROUBLESHOOTING
9. Others
In winter, moving a machine from a cold storage room to a warm site can cause
condensation inside the machine, leading to various problems.
a. Condensation on the scanning system (glass, lens array, reflecting plate) causes
dark images.
b. When too cold, the photosensitive drum assumes a high electrical resistance,
resulting in poor contrast.
c. Condensation in the pick-up/feeding assembly can cause faulty paper transport.
d. Condensation in the lower roller of the manual pick-up mechanism decreases
friction, leading to pick-up failure.
e. Condensation on the copyboard hinders its smooth movement.
When condensation is noted, dry wipe the parts.
The same holds true of the cartridge. After having moved the cartridge from a cold
to warm room, leave it alone for about one to two hours before unpacking it.