Service manual

2AV/X
1-6-27
1-6
Figure 1-6-40
Rifit the laser scanner unit and
turn the main switch on.
Yes
No
Press the start key and make
a copy at 100% magnification.
Start
End
Is the image correct?
Enter maintenance mode.
Enter “993” using the numeric keys.
Press the interrupt key.
• 20 cpm
Select “VTC-PG2” using the
cursor up/down keys
• 15 cpm
Select “2” using the copy
exposure adjustment keys.
Press the start key.
Turn the main switch off and remove the
laser scanner unit (see page 1-6-24).
Change the position of the LSU right spacer
(see table 1-6-2).
Press the stop/clear key to
exit maintenance mode.
Correct image
Copy
example 1
Copy
example 2
Vertical shifting : X (mm)
Vertical shifting:
X (mm)*
Top layer
Position of LSU
right spacer
*"–" indicates that the copy image shifts toward the bottom (copy example 1)
"+" indicates that the cop
y
ima
g
e shifts toward the top
(
cop
y
example 2
)
2nd layer from the top
LSU right spacer
LSU right spacer
3rd layer from the top
LSU right spacer
–1.5 mm ⬉ X < –0.5 mm –0.5 mm ⬉ X ⬉ +0.5 mm +0.5 mm < X ⬉ +1.5 mm
(4-2) Adjusting the vertical shifting of the laser scanner unit
Perform the following adjustment if the copy image shifts vertically due to vertical shifting of the position of the laser
scanner unit.
Table 1-6-2