Brother MFC-8510DN, Service Manual

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2-2
Confidential
1.2 Checks before Commencing Troubleshooting
Check the following items before commencing repairs on the machine.
„
Operating environment
(1) The machine is placed on a flat, stable surface.
(2) The machine is used in a clean environment where the temperature is between 10°C
(50°F) and 32.5°C (90.5°F) and the relative humidity is maintained between 20% and
80%.
(3) The machine is not exposed to direct sunlight, excessive heat, moisture, or dust.
(4) Hold the machine level while moving it.
„ Power supply
(1) Power described on the rating label attached on the machine is supplied. Power
fluctuation 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) The recommended type of paper is being used. (Refer to "1.5.2 Media specifications" in
Chapter 1 .)
(2) The paper is not damp.
(3) Short-grained paper or acid paper is not used.
„
Consumable parts
(1) The drum unit (including the toner cartridge) is set correctly.