Ricoh D025 Service Manual page 391

3. Abnormal power supply
•The required voltage is not supplied to the devices.
4. Overheat/overcooling
The environment is inappropriate for the board (the scanner unit).
5. Static electricity
Static electricity of a high voltage occurs during the test.
6. Others
The scanner and BICU are incorrectly connected.
When you have completed a check, turn the main switch off and on before you do another
check. When you have completed all necessary checks, turn the main switch off and on.
SM 6-7
Scanner Test Mode
D023/D025