Ld2 Offset Adjustment (7145 Only) - Konica Minolta 7145 Service Manual

36 MODE
9. Repeat the procedures 4 to 7 until the specified
value is attained.
10. Press the [RETURN] key to return to the "36
mode menu screen".
8.7 LD2 Offset Adjustment
(7145 only)
The write position of the LD2 laser is adjusted.
This adjustment must be made when replacing the
write unit, drum and the developer.
Preparation: The drum cartridge must be set in
advance. The developing unit must be filled with
developer. The L detection adjustment, toner den-
sity adjustment, dot diameter adjustment and the
LD1 offset adjustment must be completed.
A. Procedure
1. Enter the 36 mode.
2. "36 mode menu screen"
Press the [1. Process adjustment] key.
3. Press the [Next item] key repeatedly until the
"LD2 offset adjustment" is displayed in the mes-
sage column.
4. "LD2 offset adjustment screen"
Press the [COPY] key.
5. Select A3 or 11 x 17 size paper, then press the
START button to print the test pattern.
6. Check the test patterns.
Specification: Check to see if the LD2 laser out-
put patterns are uniform as shown in the draw-
ing below and the starting points of the low
density section are matched between the refer-
ence lines.
3
LD1 LD2 LD1 LD2 LD1 LD2 LD1 LD2
Reference line
[1]
7. If it is not within specification, press the # button
while holding down the
8. "LD2 offset adjustment screen"
Enter the offset value through the numeric keys
and press the [SET] key.
• Setting range: -128 ~ +127
9. Repeat the procedures 4 to 7 until the specified
value is attained.
10. Press the [RETURN] key to return to the "36
mode menu screen".
1-48
[1]
∗
button.