Ricoh A-P4, Service Manual

Page: 192 / 381

[0~1/0/1] 0:OFF, 1:ON
SP2-xxx: Drum
2001 Charge Roll Bias Charge Roller Bias Adjustment
001 Image Pattern
Adjusts the voltage applied to the charge roller for the image area to
maintain a charge of –800 V on the OPC drum surface.
[–1,000 ~ –2,000 / –1570 V / 10 V step]
002 ID Sensor Patt.
Adjusts the voltage applied to the charge roller when making the ID
sensor pattern (for charge roller voltage correction). The actual charge
roller voltage is this value plus the value of SP2001-01.
[0 ~ 700 / -200 V / 10 V step]
The default is adjusted automatically based on the number of prints.
00 K ~ 10 K: 200 V
10 K ~ 50 K: 230 V
50 K ~ 150 K: 340 V
2101
Prt Erase Margin Printing Erase Margin
Adjusts the leading edge (top), trailing edge (bottom), left, and right margins.
001 Leading Edge
[0 ~ 9.0 / 3 / 0.1 mm step]
Specification:
±
2 mm
002 Trailing Edge
003 Right Edge
[0 ~ 9.0 / 2 / 0.1 mm step]
Specification:
±
1.5 mm
004 Left Edge
005 Trailing Edge Back
Adjusts the trailing edge erase margin on the reverse side of
duplex prints.
[0 ~ 4.0 / 1.2 / 0.1 mm step]
Recommended: 2
±
1.5 mm
006 Back Side Right
Adjusts the right side erase margin in the reverse side of du-
plex prints.
[0 ~ 4.0 / 0.3 / 0.1 mm step]
Recommend: 2
±
1.5 mm
Service Program Mode Tables
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