Brother ADS-2000e, 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.
„
Document
(1) The recommended paper is used for the document. (Refer to "1.4.2 Media
specifications" in Chapter 1 .)
(2) The document is not damp.
(3) Acid paper is not used.
„
Others
(1) Condensation
When the machine is moved to a warm room from a cold location, condensation may
occur inside the machine, causing various problems as listed below.
• Condensation on the surface of optical devices such as the CIS glass and CIS unit
may result in poor quality of scanned images.
• Condensation on the pick-up roller or separation pad may cause document feed
problems.
If condensation has formed in the machine, leave the machine for at least two hours
until it reaches room temperature.
(2) Low temperature
The motor may not operate normally under a low temperature environment because too
much load is applied to each drive. In this case, increase the room temperature.
„ Cleaning
Use a soft lint-free cloth.
WARNING
DO NOT use any flammable spray or flammable solvent such as alcohol, benzine,
or thinner to clean the machine. DO NOT use these articles near the machine.