Datasheet

Troubleshooting
Adjustment Procedures
980006-001 Rev. A Zebra P630i & P640i Card Printer Service Manual 145
4.10.4.4 Skew Adjustment Procedure (upper cassette)
Step 1. Check the action of the cassette latch. If necessary adjust its fore-aft position so that
its ears smoothly engage the cassette without nudging the cassette.
Step 2. Print and laminate a few test cards in the usual way, noting the direction of skew.
(Don’t worry about vertical offset at this stage unless the laminate overhangs
grossly, in which case proceed to the Vertical offset adjustment procedure).
Step 3. Unlatch and remove the upper cassette from its pocket. Rotate the laminate core
counterclockwise, reeling in the laminate to bring it even with the lips of the
cassette -
VERY IMPORTANT! Set the cassette aside.
Step 4. Remove the upper transfer guide, then discard the laminate patch on the upper
transfer roller. (If you don’t do this, the next patch to be applied will not reflect the
skew adjustment you are about to make.)
Step 5. Using a fiber-tip pen, mark the skew adjust screw head for reference.
Step 6. Using a 7/64" hex wrench, turn the skew adjust screw in ¼ turn increments as
directed in diagrams below. NOTE: One full turn of the screw de-skews the
laminate by approximately 1°, equivalent to 0.03" (just under 1 mm) measured as
shown in diagram.
Step 7. Re-install the cassette.
Step 8. Adjust the cassette latch screw in the same direction, by the same amount.
Step 9. If you have not already done so, remove and discard the laminate patch on the
upper transfer roller, close the printer cover, then press the
LAMINATE button to
run out a fresh patch from the upper cassette.
Step 10. Print a test card and inspect for skew.
Step 11. Repeat Step 6 through Step 10 until the laminate is correctly positioned.
Note • The following procedure assumes that the horizontal offset has been software
corrected as described in the previous section.
To correct this condition turn the skew
adjust screw clockwise
To correct this condition turn the skew
adjust screw counterclockwise