User`s manual

3. If so equipped, remove the radio board from the printer frame assembly.
Optional step for MZ 320:
4. Remove the Gear Retainer from the printer frame. Remove the two (black) gears
farthest from the Motor from the printer frame.
NOTE: Refer to procedure RK18450-001 MZ 320 Motor and Gears for more complete details.
You may wish to retain the remaining gear in place during this procedure with a piece of tape.
5 Push on the two pivot points of the printhead until it snaps free from the printer
frame and pull the assembly free.
Install the Replacement Printhead Assembly
1. Secure the ground strap to the Printhead with the supplied Screw and Flat
Washer. The exposed metal on the ground strap must make contact with the
Printhead.
2. Plug the Printhead Flex Cable into the connector on the replacement Printhead.
Ensure that the stiffener on the Flex Circuit faces down, and the ground strap,
which is part of the Flex Circuit leads off to the r.h. side. Ensure the Flex Circuit is
pressed in completely and evenly into the Printhead connector.
3. Snap the replacement Printhead assembly into the Printer Frame.
Optional step for MZ 320:
4. If you have removed the two black gears from the Printer Frame, replace them,
ensuring the black compound gear meshes with the white compound gear. If you
continued
• Sect.2-13 • RMAN-MZS-002 • MZ Series Repair Procedures
Printhead
Spring (2)
Printer
Frame
Ground Strap)
Printhead Flex Circuit
Printhead
Assembly
Screw & Flat
Washer
Snap Printhead Assembly
into pivot points on Printer
frame, both sides.