Adjustment Conditions - Ricoh B202 Service Manual

Adjustment Conditions

Line position adjustment timing depends on several SP mode settings. However,
the mode selection, SP5-993-001, takes precedence over the others. The table
below shows the conditions and the processes you need to do. Note that the
adjustments of the sub-scan line position, main scan line position, and
magnification are done under the same conditions.
The numbers in the mode selection column show the setting of SP 5-993-001. For
details, refer to the description for SP 5-993-001 in the SP table.
Mode
selectio
n
Process
1
control
Temperature
difference
Main scan length detection
1 or 2
Initialization (fusing temperature over
60°C)
Replacement of development unit or
PCU
0, 1, or 2 Forced self check
S-pos. : Sub-scan line position
M-pos. : Main scan line position
Magni. : Magnification
NOTE: 1) "Recovery" includes turning on the main switch.
2) Fusing temperature is measured by the thermistor in the fusing unit.
Other temperatures are measured by the sensors on the laser optics-
housing unit.
3) You can use SP5-993-035 to select one of the six frequency levels of
the line position adjustment.
SM
Condition
Job End
Interrupt
Non-use Time 1, 2
Recovery (fusing
temperature 60°C or
lower)
Standby
Job start
Interrupt
: Executed
* : Executed one time when the
conditions are met twice
6-47
LASER EXPOSURE
Setting
SP3-906-001
SP3-906-002
SP3-906-003, 004
None
SP5-993-003, 005
SP5-993-003, 006
SP5-993-003, 04, 022
SP2-919-001
SP5-993-026
None
SP5-993-002
S-pos./
M-pos./ Skew
Magni.
*
B202/B178/B180