IBM Infoprint 1130, Service Manual

Page: 214 / 433

Repair Information
4-5
IBM Infoprint 1130/1140
Paper Alignment Assembly Adjustment
Do the alignment assembly adjustment whenever you replace the
alignment assembly. Always print a copy of the Quick Test Page
before making any adjustments to the alignment assembly reference
adjustment screw. When replacing the alignment assembly, it is
necessary to back the reference adjustment screw out far enough to
remove the old assembly and install the new one.
If you are replacing the alignment assembly go to step a. If you are
only adjusting the reference adjustment screw go to step b.
a. Print a copy of the Quick Test Page and check the margin
adjustments printed on the test page. These settings should
be within the range specified in
“Registration” on
page 3-28 .
Do the reference adjustment if you are sure the margins are set
correctly.
1. Loosen the locknut on the inside rear of the alignment
assembly.
2. Remove the two screws holding the alignment assembly to the
left side frame.
3. Back the reference adjustment screw out far enough to allow
the alignment assembly to be removed from the printer. It is not
necessary to completely remove the screw.
4. Install the new alignment assembly. Turn the reference screw
clockwise with a 7 mm nut driver until it touches the back of the
reference plate and tighten the nut with a 5.5 mm wrench.
The reference adjustment screw can be adjusted without loosening
the nut. Turn the screw clockwise a few turns and print a copy of the
Quick Test Page as you check the diamonds on the left margin.
Continue adjusting the screw as you check the results of each
adjustment on a new test page until you obtain the results you want.