Adjustment Conditions - Gestetner B147 Service Manual

Adjustment Conditions

Line position adjustment timing depends on several SP mode settings. Among
them, the mode selection, SP5-993-001, takes precedence over the others. The
table below lists the conditions and the processes to be executed. Note that the
adjustments of the sub-scan line position, main scan line position, and
magnification are executed under the same conditions.
The numbers in the mode selection column indicate the setting of SP 5-993-001.
For details, refer to the description for SP 5-993-001 in the SP table.
Mode
selec-
tion
Process
1
control
Temperature
difference
Main scan length detection
1 or 2
Recovery (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 temperature is measured by the sensors on the laser optics
housing unit.
3) You can use SP5-993-035 to select one of the three frequency levels of
color adjustment.
SM
Condition
Job End
Interrupt
Non-use Time 1, 2
Recovery (fusing
tempera-ture 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
SP5-993-024
SP5-993-026
None
SP5-993-002
S-pos./
M-pos./ Skew
Magni.
*
B147/B149/B190