3-3
Confidential
1.3 Initial Check
Check the following items before attempting to repair the machine.
■ Operating environment
(1) Put your machine on a flat, stable surface such as a desk that is free of vibration and
shocks.
(2) Use the machine in a well-ventilated room; use the machine 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) Ensure the machine is not exposed to direct sunlight, excessive heat, moisture, or dust.
(4) Keep the machine horizontal when you carry it. To prevent injuries when moving or lifting
this machine, make sure to use at least two people.
Fig. 3-2
■ Power supply
(1) The AC input power supply described on the rating plate of the machine 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 “2.5 Paper” 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.
(2) The belt unit and waste toner box are installed correctly.
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