Ricoh Aficio MP 2550B, Service Manual

Page: 286 / 1153

SP2xxx: Drum
D017/D018/D019/D020 5-22 SM
When the value of Vsdp/Vsg is greater than this value, the charge roller
voltage decreases by 50V (e.g. from –550 to –500). The size of the
decrease depends on SP2005 3.
[0 to 100 / 95 / 1 %/step]
Charge Roller Bias Correction
3
Adjusts the size of the charge roller voltage correction.
[0 to 200 / 50 / 1 V/step]
2101* Erase Margin Adjust
Leading Edge
1
Adjusts the leading edge erase margin.
The specification is 3 ±2 mm. See “Replacement and Adjustment - Copy
Adjustment” for details.
[0.0 to 9.0 / 3.0 / 0.1 mm/step]
Trailing Edge – Small Paper
2
Adjusts the trailing edge erase margin for paper of length 216 mm or less.
The specification is 3 ±2 mm. See “Replacement and Adjustment - Copy
Adjustment” for details.
[0.0 to 9.0 / 2.0 / 0.1 mm/step]
Trailing Edge – Middle Paper
3
Adjusts the trailing edge erase margin for paper of length 216.1 to 297 mm.
The specification is 3 ±2 mm. See “Replacement and Adjustment - Copy
Adjustment” for details.
[0.0 to 9.0 / 3.0 / 0.1 mm/step]
Trailing Edge – Large Paper
4
Adjusts the trailing edge erase margin for paper longer than 297 mm.
The specification is 3 ±2 mm. See “Replacement and Adjustment - Copy
Adjustment” for details.
[0.0 to 9.0 / 4.0 / 0.1 mm/step]