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Alignment and Troubleshooting
4-16
Machine Test
Switch Test
Use this feature to test all keys on the operation control panel. The result is displayed on the LCD window
each time you press a key.
Modem Test
Use this feature to hear various transmission signals to the telephone line from the modem and tocheck the
modem. If no transmission signal sound is heard, it means the modem part of the mainboard malfunctioned.
Dram Test
Use this feature to test the machine’s DRAM. The result appears in the LCD display.If all memory is working
normally, the LCD shows << O K >>ROM TEST
Use this feature to test the machine’S ROM. The result and the software version appear in the LCD display.
• FLASH VER : 1.00 V
• ENGINE VER :1.00V
Shading Test
This function is to get the optimum scan quality out of
the CCD(ChargeCoupled Device).
If the copy image quality is poor, perform this function
to check the condition of the CCD unit.