Ricoh Aficio AP-4510 G065, Service Manual, Page: 170 / 278

PRINTER ENGINE SERVICE MODE
G065 5-12 SM
SP2 Mode Number Function and [Setting]
06 LD Unit Position Displays the current LD unit position (number of
pulses from home position). If this is different
from the value of SP2109-01 or SP2109-02, LD
unit positioning has failed.
07 Pitch Change Count Displays how many times the LD unit position
has been changed (how many times the
resolution has changed.)
When the laser beam pitch adjustment is done,
this counter is reset to zero.
2109*
08 Beam Pitch Data Reset Resets the values of SP2109-06 and SP2109-
07.
After replacing the LD unit, this SP mode must
be performed. See section 3.9.5.
2110 01 Test Mode dpi Sets the scanning resolution (dpi).
[See below /
8 / 0 ~ 18]
Range 0: 400 x 400 dpi
1: 391 x 406 dpi
2: 406 x 391 dpi
4: 300 x 300 dpi
8 : 600 x 600 dpi
15: 439 x 430 dpi
16: 476 x 476 dpi
17: 483 x 465 dpi
18: 465 x 483 dpi
2112 01 Polygon Motor Off Timer Input the time that the polygon motor is to switch
off after the printer has remained idle for the
specified time and entered the standby mode.
If set to zero, the polygon motor never switches
off in standby mode. However, if the machine
enters the energy saver mode, the polygon
motor will ignore the zero setting and switch
itself off.
[0~60 s / 10 s / 5 s step]
Development Bias
01 Image Development Bias Adjusts the development bias for printing.
Use as a temporary measure to correct faint
images printed with an aging drum.
[–200 ~ –700 / 540 V / 10 V step]
2201*
02 ID Sensor Pattern Adjusts the development bias for the ID sensor
pattern for V
SP
(ID sensor output after reading
the ID sensor pattern).
[–200 ~ –700 /
380 V / 10 V step]
2207 01 Forced Toner Supply Forces the toner bottle to supply toner at 1-
second intervals for up to 30 seconds. To start,
press
#(Enter) .
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