Ricoh A-P4, Service Manual

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04 Beta (Tray)
Adjusts the transfer current correction coefficient used if the paper width is less than the setting
of SP2309-02. DFU
[1.0 ~ 3 / 1.2 / 0.1 mm step]
05 Gamma (By-pass)
Adjusts the transfer current correction coefficient used if the paper width is less than the setting
of SP2309-01. DFU
[1.0 ~ 3 / 1.5 / 0.1 mm step]
06 Delta (By-pass)
Adjusts the transfer current correction coefficient used if the paper width is less than the setting
of SP2309-02. DFU
[1.0 ~ 3 / 1.5 / 0.1 mm step]
2801
TD Init. Setting TD Sensor Initial Setting
Performs the TD sensor initial setting. This SP mode controls the voltage applied to the TD sensor
to make the TD sensor output about 4.0 V. Press “Execute” to start. After finishing this, the TD
sensor output voltage is displayed.
Use this mode only after installing the machine, changing the TD sensor, or adding new devel-
oper.
2802
TD Manual Set TD Sensor Manual Setting
Allows you to adjust the TD sensor output manually for the following.
001
Initial Vt [1.00 ~ 5.00V / 4.78V / 0.02V step]
Adjusts the TD sensor output (VT).
Change this value after replacing the development unit with another one that already contains
toner. For example, when using a development unit from another machine for test purposes. To
adjust VT, use a similar procedure as for SP2-220.
002
Vt Max [1.00 ~ 5.00V / 4.78V / 0.02V step]
Adjusts the maximum value for SP2802 1.
003
Vt Min [1.00 ~ 5.00V / 1.00V / 0.02V step]
Adjusts the minimum value for SP2802 1.
5. Service Tables
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