Sharp MX-2314N Service Manual page 63

Display/
Item
MAIN F C Registration adjustment value main scanning
direction (Cyan laser writing position F side)
M Registration adjustment value main scanning
direction (Magenta laser writing position F side)
Y Registration adjustment value main scanning
direction (Yellow laser writing position F side)
MAIN R C Registration adjustment value main scanning
direction (Cyan laser writing position R side)
M Registration adjustment value main scanning
direction (Magenta laser writing position R side)
Y Registration adjustment value main scanning
direction (Yellow laser writing position R side)
SUB C Registration adjustment value sub scanning direction
(Cyan drum  Black drum)
M Registration adjustment value sub scanning direction
(Magenta drum  Black drum)
Y Registration adjustment value sub scanning direction
(Yellow drum  Black drum)
SKEW C Print skew amount calculation result (Cyan)
M Print skew amount calculation result (Magenta)
Y Print skew amount calculation result (Yellow)
ALL_ Print skew amount calculation result (Overall)
ROTATE
PHASE OPC drum phase adjustment value
4) Write down the displayed skew level.
Meaning of the skew level value and the adjustment pro-
cedure
* If "OK" is displayed for all items of SKEW ALL_ROTATE, C,
M, and Y, there is no need to perform the adjustment.
* When "R" is displayed at the head of the value, turn the LSU
skew adjustment screw clockwise.
* When "L" is displayed at the head of the value, turn the LSU
skew adjustment screw counterclockwise.
* The turning amount of the adjustment screw corresponds to
each adjustment value. "ALL_ROTATE" indicates the
number of rotations, and C, M, and Y indicate numbers of
clicks.
The display value is rounded at the decimal point.
* "ALL_ROTATES" shows the number of rotations of
adjustments for all the adjustment screws. "C, M, and Y
(SKEW)" shows the number of adjustment click steps for
each adjustment screw of C, M, and Y.
Contents in ( )
MIAN, SUB: Difference from the previous adjustment value of
image registration.
Example:
If 105 for this time and 103 for the previous time,
it is displayed as 105.0 (+2.0).
SKEW, ALL_ROTATE: Judgment of the LSU skew adjustment
result. OK or NG.
PHASE: OPC drum phase adjustment value of the previous
time
5) If the display of ALL_ROTATE is NG, turn all the LSU skew
adjustment screws to adjust, and perform the procedures 2) to
4).
Repeat the procedures 2) to 5) until the display of
ALL_ROTATE becomes OK. If the display of ALL_ROTATE is
OK, go to the procedure 6).
For the adjustment, remove the front cover and the waste
toner box, and turn the skew adjustment screw.
Content
MX-3114N ADJUSTMENTS AND SETTINGS 5 – 14
Display Default
1.0 - 199.0 100
1.0 - 199.0 100
1.0 - 199.0 100
1.0 - 199.0 100
1.0 - 199.0 100
1.0 - 199.0 100
1.0 - 199.0 100
1.0 - 199.0 100
1.0 - 199.0 100
-99.9 - 99.9 0 If the value is positive (+), "L" is displayed at the head of the
value. If negative (–), "R" is displayed.
-99.9 - 99.9 0
If the value is in the range of –2.1 - +2.1, "(OK)" is displayed at
-99.9 - 99.9 0
the bottom of the value. In the other cases, "(NG)" is displayed.
-99.9 - 99.9 0 If the value is positive (+), "L" is displayed at the head of the
value. If negative (–), "R" is displayed.
If the value is in the range of –1.6 - +1.6, "(OK)" is displayed at
the bottom of the value. In the other cases, "(NG)" is displayed.
1 - 8 1
6) Repeat the procedures 2) to 4) again, and check to confirm
that C, M, and Y (SKEW) are OK.
If any of them is NG, turn the LSU skew adjustment screw of
the corresponding color to adjust.
NOTE