2FB/2FC-4
1-6-50
Retighten the screw.
Retighten four screws to hold the LSU.
Refit the LSU adjustment plate and
contact glass.
Yes
No
Press the start key and make
a copy at 100% magnification.
Start
End
Is the image correct?
Enter maintenance mode.
Enter 089 using the numeric keys.
Press the interrupt key.
Select 1 dot-LINE.
Press the start key.
Exit maintenance mode.
Press the stop/clear key.
Remove the contact glass (see page 1-6-34).
Loosen four screws holding the LSU
(see page 1-6-42).
Remove the screw and then remove the LSU
adjustment cover.
Loosen the screw and adjust the position of the LSU adjusting
plate and the position for fixing screw A, B as follows.
For output example 1
1. Move the LSU adjustment plate in the direction of the black
arrow ( ).
2. In case adjustment is required even if the position of the LSU
adjusting plate is at the most left position and also adjusting
screw A is tightened in the hole of + marking, tighten
adjustming screw A in the hole of - and then tighten screw B.
3. Move the LSU adjusting plate at the most right position and
again move it in the direction of the black arrow ( ).
For output example 2
1. Move the LSU adjusting plate in the direction of the white
arrow ( ).
2. In case adjustment is required even if the position of the LSU
adjusting plate is at the most right position and also
adjusting screw A is tightened in the hole of - marking,
tighten adjusting screw A in the hole of + and then tighten
screw B.
3. Move the LSU adjusting plate at the most left position and
again move it in the direction of the white arrow ( ).
New procedure
Figure 1-6-96-1
Figure 1-6-96-2
Correct
Output
example 1
Output
example 2
LSU adjusting cover
Screw
Adjusting pin
plate
LSU adjusting
plate
Adjusting screw
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