Sp2-Xxx (Drum) - Ricoh B121 Service Manual

SERVICE PROGRAM MODE

SP2-XXX (Drum)

2001* Charge Roller Bias Adjustment
2001 1 Printing
Adjusts the voltage applied to the charge roller when printing. The actually applied
voltage changes automatically as charge roller voltage correction is carried out. The
value you set here becomes the base value on which this correction is carried out.
2001 2 ID sensor pattern
Adjusts the voltage applied to the charge roller when generating the Vsdp ID sensor
pattern (as part of charge roller voltage correction). The actual charge-roller voltage
is obtained by adding this value to the value of SP2-001-1.
2101* Erase Margin Adjustment
2101 1 Leading edge
Adjusts the leading edge erase margin.
2101 2 Trailing
Adjusts the trailing edge erase margin. The rear trailing edge is this value plus 1.2
mm.
2101 3 Left side
Adjusts the left edge erase margin. The rear left edge is this value plus 0.3 mm.
2101 4 Right side
Adjusts the right edge erase margin. The rear right edge is this value plus 0.3 mm.
2201* Development Bias Adjustment
2201 1 Printing
Adjusts the voltage applied to the development roller when printing. This can be
adjusted as a temporary measure if faint copies are being produced due to an aging
drum.
2201 2 ID sensor pattern
Adjusts the voltage applied to the development roller when generating the ID
sensor pattern. The actual voltage applied is this setting plus the value of SP2-201-
1. The setting affects ID sensor pattern density, which in turn affects the toner
supply.
2213* Outputs after Near End
2213 1 [0 = 50 pages / 1 = 20 pages]
Sets the number of copy/print/fax pages that can be made after toner near-end has
been detected. Reduce the number of pages if the user normally makes copies with
a high image ratio.
2214 Developer Initialization
2214 1 Initializes both the TD sensor toner supply target voltage and the TD sensor gain
value. Carry this out after replacing the developer or the TD sensor.
B121 Series/B259 Series
[–2100 ~ –1500 / –1700 / 1 V/step]
[0 ~ 400 / 300 / 1 V/step]
[0.0 ~ 9.0 / 2.0 / 0.1 mm/step] (
Specification: 2 ± 1.5 mm
[0.0 ~ 9.0 / 3.0 / 0.1 mm/step] (
Specification: 2 +2.5/–1.5 mm
[0.0 ~ 9.0 / 2.0 / 0.1 mm/step] (
Specification: 2 ± 1.5 mm
[0.0 ~ 9.0 / 2.0 / 0.1 mm/step] (
Specification: 2 +2.5/–1.5 mm
[–1500 ~ –200 / –650 / 1 V/step]
[–2 = LL (220 V) / -1 = L (260 V) / 0 = N (300 V) / 1 =
H (340 V) / 2 = HH (380 V)]
5-30
3.13.1)
3.13.1)
3.13.1)
3.13.1)
SM