Zebra Technologies P640I - Manual (Page 47)

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