Specifications
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18. Refer to Figure 4-6 on page 4-12 and replace J2 (motor harness) and J1 (printhead
harness). J2 and J1 are keyed and fit only one way. Do not force them into the
connectors.
19. Refer to Figure 4-8 on page 4-14. Route all harnesses to avoid pinching and screw
posts.
20. Refer to Figure 4-7 on page 4-13. Ensure the battery access door is in the slot in the
front cover with the flat side facing in.
21. Replace the cover and shoulder strap.
22. Place the printhead assembly into the replacement print mechanism module by
reversing steps 5 through 9. Ensure the 16-pin connector on the printhead, the 4-pin
connector on the ribbon sensor board (PT40x only), the ground wire(s), and
head-open switch wire are connected to the printhead before operating. Ensure all
connections are fully seated.
23. Close and latch the print mechanism module access door.
24. Install a battery, load the media, and calibrate the unit. Connect a battery charger if
necessary.
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1. Turn the printer Off (2). Disconnect the battery charger.
2. Slide the battery compartment door open and remove the battery.
3. Open the media access door and remove any media.
4. Stand the printer on a flat surface with the front of the printer facing you.
5. Refer to Figure 4-10 on page 4-18. Remove the printhead assembly by first lifting
the printhead off the platen roller. Gently bend in one of the printhead pivot arms.
Carefully pull the printhead assembly out of the print mechanism module far enough
to gain access to the cabling.
6. Refer to Figure 4-11 on page 4-18. Loosen, but do not remove, the screw securing
the ground wire(s). Remove the ground wire(s).
7. Carefully slide the head-open switch wire off the spade lug on the printhead.
8. Refer to Figure 4-12 on page 4-20. Carefully remove the 16-pin connector from the
printhead.
9. (PT40x only)Carefully remove the 4-pin connector from the ribbon sensor board.
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