Read Sharp AR-C260 (serv.man11) Service Manual online
AR-C260/C260M SETTING AND ADJUSTMENTS 8 - 5
Note:
There are two methods to adjust the color image density sensor; one
method uses the adjustment jig, and the other method does not use it.
method uses the adjustment jig, and the other method does not use it.
If there is no adjustment jig available, the simple adjustment (SIM44-
36) can be made, which may, however, result in insufficient adjustment
accuracy depending on the machine condition.
36) can be made, which may, however, result in insufficient adjustment
accuracy depending on the machine condition.
If toner, the OPC drum, and the transfer belt are not new ones or
almost new ones, the simple adjustment is not recommended.
almost new ones, the simple adjustment is not recommended.
Even though the machine conditions are well, the adjustment by use of
the adjustmment jig gives a higher adjustment accuracy than the
adjustment without the adjustment jig (simple adjustment).
the adjustmment jig gives a higher adjustment accuracy than the
adjustment without the adjustment jig (simple adjustment).
Also note that SIM44-36 must not executed unnecessarily after execu-
tion of the color image density sensor adjustment (adjustment by the
adjustment jig) with SIM44-13.
tion of the color image density sensor adjustment (adjustment by the
adjustment jig) with SIM44-13.
If SIM 44-36 is executed, the contents of the color image density sen-
sor adjustment (adjustment by the adjustment jig) with SIM44-13 are
erased, and the adjustment result of SIM44-36 is saved.
sor adjustment (adjustment by the adjustment jig) with SIM44-13 are
erased, and the adjustment result of SIM44-36 is saved.
When the color image density sensor is adjusted with SIM44-13 and
the black image density sensor is adjsuted with SIM 44-2, the adjust-
ment with SIM44-36 is not required.
the black image density sensor is adjsuted with SIM 44-2, the adjust-
ment with SIM44-36 is not required.
To adjust the black image density sensor, the adjustment jig is not
required.
required.
Before executing this adjustment, check the following items:
• Check that the color imagte density sensor is clean.
• Check that the image density sensor calibration plate is clean.
• Check that the transfer belt is free from scratches.
1) Open the front cover of the machine.
2) Insert the color image density sensor adjustment jig
(CPLTM6305FC01) into the long hole in the transfer unit frame,
and close the left cabinet.
and close the left cabinet.
3) With the front cover of the machine open (with the cover open/
close switch OFF), turn on the power.
4) The Machine enters Sim 44-13 mode.
SIM 44-13
5) Close the front cover of the machine.
6) Press the [EXECUTE] key.
The adjustment is performed automatically. When the adjustment
is completed, the adjustment result is displayed and the the [EXE-
CUTE] key display returns to the original state.
is completed, the adjustment result is displayed and the the [EXE-
CUTE] key display returns to the original state.
7) Remove the color image density sensor adjustment jig.
If the adjustment is not completed normally, "ERROR" is displayed.
In that case, check the following sections for no abnormality. If there is
any abnormality, repair the part and perform the adjustment again. In
case of an error, the adjustment result is not revised.
any abnormality, repair the part and perform the adjustment again. In
case of an error, the adjustment result is not revised.
• Image density sensor
• PCU PWB
• Transfer belt
Note:
The color image density sensor adjustment jig is available in the follow-
ing two forms:
ing two forms:
• The jig metal plate with the calibration sheet attached to it
(CPLTM6305FC01)
• Calibration sheet (for replacement) (TLABZ4843FCZZ)
TLABZ4843FCZZ is the calibration sheet for replacement. When the
calibration sheet attached to CPLTM6305FC01 is dritied or scratched
too much to be used, replace only the calibration sheet with a new one.
calibration sheet attached to CPLTM6305FC01 is dritied or scratched
too much to be used, replace only the calibration sheet with a new one.
ADJ 2A
Color image density sensor adjustment
(adjustment by the adjustment jig)
(adjustment by the adjustment jig)
Display
Content
Min
Value
Max
Value
Default
value
A
PCS_C
CARB ADJ
CARB ADJ
Color image density
sensor LED current
adjustment target value
sensor LED current
adjustment target value
1
255
108
B
PCS_C
DARK
DARK
Color image density
sensor dark voltage
level
sensor dark voltage
level
0
255
0
C
PCS_C LED
ADJ
ADJ
Color image density
sensor current
adjustment value
sensor current
adjustment value
1
255
51
Click on the first or last page to see other AR-C260 (serv.man11) service manuals if exist.