Service manual

ENGINE SERVICE MODE
SM 5-61 G130/G131
Service Tables
[Line Adj.] Line Adjustment
5993
Line Positioning Adjustment ([Color])
M: Main-scan, S: Sub-scan, Reg.: Registration, Mag.: Magnification
For example: M Reg = Main scan registration
Interrupt *BCU [0 or 1 / 1 / -] Alphanumeric
0: Never done, 1: Enable
5993 004
Enables or disables the line position adjustment during a print job when the
temperature differs by the amount specified in SP5-993-003 from the temperature at
the last adjustment.
Stand-by *BCU [0 or 1 / 0 / -] Alphanumeric
0: Disable, 1: Enable
5993 005
Enables or disables the line position adjustment during stand-by mode when the
temperature differs by the amount specified in SP5-993-003 from the temperature at
the last adjustment.
Job Start *BCU [0 or 1 / 1 / -]
0: Disable, 1: Enable
5993 006
Enables or disables the line position adjustment just before starting a color print job
when the temperature differs by the amount specified in SP5-993-003 from the
temperature when the machine woke up from energy saver mode.
Result *BCU 5993 007
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: Error detected on the front ID sensor
<Result>
0 1 0 1 0 1
The 6th digit ↑ ↑ The 1st digit
Refer to the Troubleshooting section for more details about the two-digit codes.
Exe. Counter *BCU 5993 008
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.
5993 009 Error Counter *BCU Displays how many times errors have been
detected during the line position adjustment.
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.
5993 010 M Offset [Y] *BCU
5993 011 M Offset [M] *BCU
5993 012 M Offset [C] *BCU
A fine adjustment to the main-scan registration.
[-128 to 127 / 0
/ 1 dot/step] FA
1 dot = 20µ
5993 013 M Mag Offset [Y] *BCU
5993 014 M Mag Offset [M] *BCU
5993 015 M Mag Offset [C] *BCU
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
affect the next line position adjustment.
5993 016 S Offset 600[Y] *BCU
5993 017 S Offset 600[M] *BCU
5993 018 S Offset 600[C] *BCU
5993 019 S Offset 1200[Y] *BCU
5993 020 S Offset 1200[M] *BCU
5993 021 S Offset 1200[C] *BCU
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