User`s manual

MZ SERIES PRINTHEAD REPLACEMENT KITS
Installation Instructions
This kit includes the parts necessary to install the RK18404-001 Printhead
Replacement Kit in the model MZ 220 printer and the RK18447-001 Printhead
Replacement Kit in the MZ 320 Printer. The procedures for both kits are similar
except for the differences noted below. Read these instructions thoroughly before
attempting to install this kit.
Reference Materials
UMAN-MZS MZ Series Users’ Guide
Tools Required
• #1 Phillips head screwdriver
Cautions
Always turn the printer off before performing any repair procedures, unless otherwise specified.
You must use an ESD strap and work at a properly grounded workstation (antistatic mat or tray).
All electronic components must be placed on an ESD protective tray. If stored, any electronic
components must be placed in antistatic bags
The following procedure can only be performed by Zebra authorized service organizations using
approved equipment and software.
Remove the Upper Housing
1 Turn the printer off, and remove the battery pack. Remove any media from the
printer.
2. Remove and retain the four screws retaining the upper housing to the printer
frame. Two screws are inside the media compartment and the remaining two are
on the underside of the printer near the control switches.
3. Remove the upper housing. Retain the latch release button.
NOTE: If the printer is equipped with a radio option: carefully unplug the antenna cable from the
Antenna PCB mounted in the upper housing. Refer to the procedure for RK18408-001, MZ Series
Antenna replacement kit, for more details.
Remove the Printer Frame
1. Remove the two screws securing the printer frame to the lower housing.
2. Lift the Printer frame slightly to gain access to the motor connector and un-plug
it.
3. Un-latch the printhead connector.
4. Carefully lift the printer frame away from the lower housing.
MZ 220 NOTE: The two drive gears that mesh with the motor on the printer frame will become
loose. You can temporarily secure them in place with a piece of tape.
Remove the Printhead Assembly
1. Un-plug the Printhead flex circuit from the main logic board.
2. Remove the two Springs from the printer frame and the Printhead..
RMAN-MZS-002 • MZ Series Repair Procedures • Sect.2-12 •