Making Initial Checks - Canon LBP-2000 Service Manual

CHAPTER 4
B. Making Initial Checks
Before starting troubleshooting steps, make the following checks; if a fault is discovered, correct it
and then advise the user on how to avoid it:
1. Installation environment
a. The power supply voltage is ±10% of the rated voltage.
b. The Printer is kept level.
c. The ambient temperature is between 7.5ºC to 32.5ºC and the humidity is between 5% and
90%.
d. The Printer is not in an area subject to ammonium gas or high temperature/humidity (e.g.,
near water faucet, water boiler, humidifier). Nor is it in a cold area or near a source of fire or
dust.
e. The Printer must not be in an area subject to the direct rays of the sun. As necessary, advise
the user to provide curtains.
f. The room must be well ventilated.
g. The power plug is securely connected to the Printer and the power outlet.
2. Types of paper
a. The paper used must be of a type recommended and suited to the Printer.
b. The paper must not be moist.
3. Paper
a. The source of paper must have paper (not in excess of a indicated amount).
b. The paper must be correctly placed against the pickup slot.
4. EP-65 cartridge
The cartridge must be correctly fitted to the Printer.
5. Condensation
If a Printer is brought in from a cold to warm place, its inside can start to develop condensation,
triggering various problems; for example,
• On the optical system (6-face mirror, reflecting mirror, lens), it can cause light images (the
photosensitive drum tends to be cold, causing the electrical resistance of its photoconducting
layer to be high).
If condensation is noted, dry wipe the parts, or leave the Printer alone (powered) for 10 to 20 min.
The same is true of the cartridge. Do not open the cartridge without allowing it to become used
to the room temperature (1 to 2 hr) before taking it out of its package.
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