Ricoh D025 Service Manual page 792

System Service Mode
4020 [Dust Check]
001 Detection: ON/OFF
002 Dust Detect: Level
003 Correction Level
[APS Operation Check]
4301
Displays a code that represents the original size detected by the original
sensors. (See "Input Check Table".)
001 APS Operation Check
D023/D025
Turns the ADF scan glass dust check on/
off.
*ENG
[0 or 1 / 0 / 1 /step]
0: OFF, 1: ON
Selects the detect level.
[0 to 8 / 4 / 1 /step]
*ENG
0: lowest detection level
8: highest detection level
Selects the level of the sub scan line
correction when using the ARDF.
[0 to 4 / 0 / 1 /step]
0: Off
*ENG
1: Weakest
2: Weak
3: Strong
4: Strongest
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8-196 SM Appendix