Ricoh AC104, Service Documentation, Page: 122 / 160

TECH MODE
B173 5-6 SM
5.2.4 MACHINE TEST
SWITCH TEST
Use this to test all keys on the operation control panel. The LCD window shows the
result when you push a key.
MODEM TEST
Use this to hear the different transmission signals to the telephone line from the
modem and to check the modem. If no transmission signal sound is heard, the
modem part of the main board is not operate correctly.
DRAM TEST
Use this to examine the machine's DRAM. The LCD shows the result.
The LCD shows << O K >> if the memory works correctly.
ROM TEST
Use this to examine the machine's ROM. The LCD shows the result and the
software version.
Example:
• FLASH VER: 6.04 V
•
ENGINE VER:1.08 V
PATTERN TEST
Use this to verify that the printer mechanism is operating correctly.
The patterns are:
•
Pattern-1 ~ Pattern-7
•
QA Pattern-1 ~ QA Pattern-4