2-1
Confidential
CHAPTER 2 ERROR INDICATIONS & TROUBLESHOOTING
1.
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 5°C (41°F)
and 35°C (95°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.
(5) AC adapter and AC code included in the package are used.
Document
(1) The recommended paper is used for the document. (Refer to
(2) The document is not damp.
(3) Acid paper is not used.
(4) The document is not bent, torn, or wrinkled.
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 ASSY may cause document feed
problems.
If condensation has formed in the machine, leave the machine for about 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.
