Ricoh A250 Service Manual page 749

Rev. 03/2000
Mode No.
Class Class
1 and 2 3
⇒
1-908* 18
1-909*
2-001*
1
2
2-101*
3
4
2-103*
2-106*
SM
Paper Tray Adj.
(M Size Setting - 2)
NOTE: The "T" after A4
and LT refer to length-
wise feeding direction.
Tray Motor Reverse
Time
Charge Roller Bias
Adjustment
Erase Margin
Adjustment
(Leading Edge)
Erase Margin
Adjustment
(Trailing Edge)
Erase Margin
Adjustment
(Left Side)
Erase Margin
Adjustment
(Right Side)
LD Power Adjustment
ID Adj. for Test Pattern
SERVICE PROGRAM MODE
Function
Optional Paper Tray Unit Only:
Selects the middle size threshold for
the lower tray.
"0" means that this setting is not
used.
With the default settings, this SP is
not used in this machine.
The value must be larger than the
small size threshold (SP1-908-17).
The size used by SP1-908 is
determined by paper width. See
"Option - Paper Tray Unit" for details
on SP1-908.
Adjusts the tray motor reverse time.
The tray motor reverses when the
tray is pulled out. The tray can be
put back in the machine without
damage while the motor reverses.
See "Option - Paper Tray Unit" for
details on SP1-908.
Adjusts the voltage applied to the
charge roller.
Do not change the value.
Adjusts the leading edge erase
margin.
The specification is 2 ± 1.5 mm. See
"Replacement and Adjustment -
Copy Adjustment" for details.
Adjusts the trailing edge erase
margin.
The specification is more than 0.5
mm. See "Replacement and
Adjustment - Copy Adjustment" for
details.
Adjusts the left edge erase margin.
The specification is 2 ± 1.5 mm. See
"Replacement and Adjustment -
Copy Adjustment" for details.
Adjusts the right edge erase margin.
The specification is more than 0.5
mm. See "Replacement and
Adjustment - Copy Adjustment" for
details.
Adjusts the LD power.
Do not change the value.
Adjusts the image density level for
black pixels on test pattern printouts
(patterns are made with SP5-902).
4-11
Settings
0: Non
(Not use)
1: HLT/A5
2: A4T
3: Lg, LTT
4: DLT, LT
5: A3, A4
0 ~ 9000
1 ms/step
1700 ms
0 ~ –1500
1 V/step
–600 V
0 ~ 9
1 mm/step
2 mm
0 ~ 9
1 mm/step
3 mm
0 ~ 9
1 mm/step
2 mm
0 ~ 9
1 mm/step
2 mm
0 ~ 255
1 /step
129
0 ~ 255
1 /step
255
A250