Gestetner B147 Service Manual page 348

COPY SERVICE MODE
5-993-7 Result
Displays the result of the latest line position adjustment in 4 digits.
First and second digits: Error detected on the rear ID sensor
Third and fourth digits: Error detected on the center ID sensor
Fifth and sixth digits:
The 6th digit ↑
Refer to the Troubleshooting section for more details about the two-digit codes.
5-993-8 Exe. Counter
Displays how many times the line position adjustment has been executed.
Counts up by +1 normally.
After a forced adjustment and a PCU replacement, it counts up +3
Also includes adjustments done at the factory.
5-993-9 Error Counter
The way that the auto line position adjustment is done can be adjusted using the
following SP modes (SP5-993-010 to 021). These are coefficients used for the
adjustment.
Normally, do not change except if the automatic adjustment gives poor results
immediately after installing a new optics housing unit. Change the value then do a
forced line position adjustment (SP 5-993-2) to check the effects of the changes.
Example: If magenta is always shifted one dot to the left, reduce 5-993-11 by 1.
5-993-10 M Reg. [Y]
5-993-11 M Reg. [M]
5-993-12 M Reg. [C]
5-993-13 M Mag. [Y]
5-993-14 M Mag. [M]
5-993-15 M Mag. [C]
5-993-16 S Reg. 600[Y]
5-993-17 S Reg. 600[M]
5-993-18 S Reg. 600[C]
5-993-19 S Reg. 1200[Y]
5-993-20 S Reg. 1200[M]
5-993-21 S Reg. 1200[C]
5-993-22 Interrupt
Specifies the number of sheets to be printed before a line position adjustment is done
during a print job.
SP 5-993-4 must be set to 'enabled'.
When the temperature difference meets the conditions specified in SP5-993-3, the
machine starts counting the number of prints in the job. The machine interrupts the
print job and does the line position adjustment if the number of prints exceeds the
number specified in this SP mode.
If the counted number of prints does not exceed the number specified, the machine
resets the counter, then continues to monitor the temperature and does the line
position adjustment next time.
5-993-24 Mscan Lgth Det
Performs the main scan length detection when the polygon motor has operated
consecutively for the time specified in this SP mode.
5-993-25 Drm Gear Phase
Adjusts the phases of the black drum gear and the color drum gear.
B147/B149/B190
*BCU
Error detected on the front ID sensor
0 1 0 1 0 1
↑ The 1st digit
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
*BCU
Displays how many times errors have been
detected during the line position adjustment.
A fine adjustment to the main-scan registration.
[ -128 to 127 / 0 / 1 dot/step ] FA
1 dot = 20µ
A fine adjustment to the main-scan
magnification.
[ -100 to 100 / 0 / 0.01 %/step ] FA
NOTE: The setting changes in this SP mode
will be affect the next line position
adjustment.
A fine adjustment to the sub-scan registration
for each color (color registration).
[ -128 to 127 / 0 / 1 dot/step ] FA
600dpi: 1 dot = 40µ
1200 dpi: 1 dot = 20µ
[ 10 to 250 / 100 / 10 sheets/step ]
[ 100 to 990 / 211 / 10 sec/step ]
[ 0 to 345 / 0 / 15 degrees/step] DFU
5-60 SM