Zebra Technologies P640i Manual Do Utilizador

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980541-001 Rev. A
P640i Card Printer User Guide
37
Technical Note 2 - Card 
Transport 
No-slip card transport 
The P640 does not rely on friction rollers to drive the 
card through the print station. Instead, the entire pick 
and print process is precisely controlled by a belt 
driven truck riding on parallel rails. 
Card transport knob 
Allows you to move the truck to left or right by hand. 
When the printer cover is lifted, there is no power 
applied to the transport stepper motor. 
Take care of the platen
The platen plays an important part in the printing 
process, providing a rigid supporting surface for the 
card as it passes under the print head. Because 
flatness
 
is important, the platen is surface ground to close 
tolerances. Any irregularities in the surface due to 
abrasion, dings, or even seemingly unimportant 
particles of debris can noticeably degrade printing 
performance, see page TN2-3. Regular cleaning of the 
platen helps maintain performance. 
Removing the platen
Using the card transport knob move the truck back to 
its home position, stopping when the right hand edge 
of the platen is even with the right hand inner sufrace 
of the hopper. 
Push the platen to the left against its spring, then pry 
the platen out using a CR-80 card. 
Stepper
Platen
Truck
Transport belt