Sharp MX-4100N Service Manual page 58

* After completion of the adjustment, the drum motor stops and
[EXECUTE] button returns to the normal display and the adjust-
ment result is displayed.
MAIN, SUB Image regist adjustment value is displayed.
( ) is the difference from the previous adjustment value.
Example: This time 105.0, previous time 103.0 : 105.0 (+2)
PHASE OPC drum phase adjustment value is displayed.
( ) is the previous adjustment value.
Example: This time 90°, previous time 45° : 3 (2)
* In case of an error, "ERROR" is displayed with the details.
7-B OPC drum phase adjustment
(Manual adjustment)
NOTE: The OPC drum phase adjustment by manual is not recom-
mended. Cause judgement of adjustment pattern differ in
individuals. Auto adjustment mode with SIM50-22 is rec-
ommended.
1) Enter SIM44-31 mode.
EXECUTE
When the deflection exceeds the range
between 2 lines in the printed result.
EXECUTE
EXECUTE
or end of print
10-key
OK
EXECUTE
or end of print
MX-5001N ADJUSTMENTS 5 – 16
2) Enter "1" with 10-key in the PRINT MODE of set item A, and
press [OK] key.
3) Select the paper feed stage with A3 (or 11" x 17") in it with
PAPER SELECT of set item C, and press [OK] key.
4) Press [EXECUTE] key.
The adjustment patterns (8 pages) are printed.
Each identification number ("1" - "8") is printed on each printed
page of 8 adjustment patterns.
5) Check the deflection in 94mm pitch cycle of each C/M/Y print
pattern. Select a print pattern of the smallest deflection for
each color of C/M/Y, and use the pattern identification number
as the adjustment value, and enter it to set item B. Press [OK]
key.
94mm 94mm
NOTE: If there is a peculiar deflection other than the drum cycle
(94mm pitch), check the following conditions.
• OPC drum drive section
• Transfer belt drive section
• Paper feed drive section
• Each motor speed set value (Set value of SIM48-6)
ADJ 8
Print engine image
magnification ratio adjustment
(BK) (Main scanning direction)
(Print engine section) (Manual
adjustment)
This adjustment is needed in the following situations:
* When the LSU (writing) unit is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
* When the color shift occurs.
94mm 94mm