2-2
Confidential
1.2 Initial Check
Check the following items before attempting to repair the printer.
■ Operating Environment
(1) Put your printer on a flat, stable surface such as a desk that is free of vibration and
shocks.
(2) Use the printer in a well-ventilated room; use the printer within the following ranges of
temperature and humidity: temperature between 10°C and 32.5°C (50°F to 90.5°F), and
the relative humidity is maintained between 20% and 80%.
(3) The printer is not exposed to direct sunlight, excessive heat, moisture, or dust.
(4) Keep the printer horizontal when you carry it.
■ Power Supply
(1) The AC input power supply described on the rating plate of the printer should be within
±10% of the rated voltage.
(2) The AC input power supply is within the regulated value.
(3) The cables and harnesses are connected correctly.
(4) The fuses are not blown.
■ Paper
(1) A recommended type of paper is being used.
(Refer to "1.5.2 Media specifications" in Chapter 1.)
(2) The paper is not damp.
(3) The paper is not short-grained paper or acid paper.
■ Consumable Parts
(1) The drum unit (including the toner cartridge) is installed correctly.
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