Zebra Technologies P640I - Manual (Page 67)

980541-001 Rev. A P640i Card Printer User Guide 57
3. Referring to Section 2, Media Handling, 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.
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.)
5. Using a fibertip pen mark the skew adjust screw
head for reference.
6. Using a 7/64" hex wrench turn the skew adjust
screw in ¼ turn increments as directed in the
diagram
below.
7. After each movement of the skew adjust screw do
the following three actions:
a. Adjust the cassette latch screw in the same
direction, by the same amount.
b. 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.
c. Print a test card and inspect for skew.
8. Re-install the cassette.
Lower cassette skew adjustment
procedure
Once the front surface skew is consistently
acceptable, inspect the back surface patches of the last
few cards to pass through the laminator. Note the
direction of skew on the back surface. (Don’t worry
about vertical offset at this stage unless the laminate
overhangs grossly, in which case proceed to the
Vertical offset adjustment procedure, below.) When
flipping the cards for inspection, keep the mag stripe
(if present) toward you.
Correct for skew in the lower laminator using the
same procedure as the upper cassette, but
note that the
“reel in” direction will be clockwise for the lower
cassette as it sits in the printer.
After each movement of the lower cassette skew
adjust screw, perform exactly the
same three actions
described in step 7 of the upper laminator.
Upper cassette vertical offset
adjustment
The following procedure assumes that the horizontal
offset has been software-corrected and that skew has
been adjusted as outlined above.
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.
2. Print and laminate a few test cards in the usual
way, noting the vertical offset (front-to-back
position) of the laminate patch on the front of the
card.
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. Set the
cassette aside.
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 vertical offset adjustment you are about
to make.)
5. Using a fibertip pen mark the vertical offset adjust
screw head for reference.
Note • One full turn of the screw de-
skews the laminate by approximately 1°,
equivalent to 0.03".
Note • One full counterclockwise turn of
the screw pushes out the cassette, and
therefore the laminate patch, by
approximately 0.03" (just under 1 mm)
Flip the cards left to right (not front to
back)