Ricoh A-P4, Service Manual

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[0 = No, 1 = Yes]
Selects whether or not the toner overflow sensor is activated.
2964
Transfer Cleaning Blade Forming
[0 ~ 30/ 3 / 1 sheets]
Applies a pattern of toner to the transfer belt at a defined interval between sheets on the transfer
belt in order to reduce friction between the belt surface and the cleaning blade.
Under conditions of high temperature and high humidity, the density control feature may reduce
the amount of toner, which also reduces the amount of toner on the surface of the transfer belt.
With less toner on the belt, the friction between the belt and the blade increases, and could
cause the blade to bend or scour the surface of the belt.
2969 LD PWM Select LD – PWM Selection
001
LD PWM Select Printer Output LD – PWM Selection
[1 ~ 5 / 1 / 1 step]
Changes the LD power PWM control for printed copies. A smaller value produces a lighter
image. Use this SP to adjust the image density for printing from a personal computer:
1:100% 2:87.5% 3:75% 4:62.5% 5:50%
002
Fax Output Fax Output LD – PWM Selection
[1 ~ 5 / 1 / 1 step]
Changes the LD power PWM control for printed fax messages. A smaller value produces a
lighter image. Use this SP to adjust the image density for printing fax messages.
1:100% 2:87.5% 3:75% 4:62.5% 5:50%
2971 Toner Full Cnt Toner Full Sensor Count
Counter that confirms that the contact of the waste toner full sensor is operating normally. Exe-
cution of SP5801 initializes this value by setting it to 0. DFU
2972
Grayscale Limit
A new feature of this machine that controls the halftone density level to prevent deterioration of
the OPC. The halftone density is detected by the ID sensor, and the machine adjusts the intensity
of the LD beam according to the upper/lower limit setting.
001 Grayscale Max
Grayscale Maximum - Upper Limit
Service Program Mode Tables
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