Zebra Technologies P640i Manual Do Utilizador

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.  

 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 

 that the 

“reel in” direction will be 

 for the lower 

cassette as it sits in the printer. 

After each movement of the lower cassette skew 
adjust  screw, perform exactly the 

 

described in step 7 of the upper laminator.   

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. 

One full turn of the screw de-

skews the laminate by approximately 1°, 
equivalent to 0.03".

One full counterclockwise turn of 

the screw pushes out the cassette, and 
therefore the laminate patch, by 
approximately 0.03" (just under 1 mm)