Sharp SX 1075

SX™
Service and Maintenance Manual 3-89 960714-02B © 2007 I2407
SECTION 3 – COMPONENT REPAIR
PRINTHEAD CRADLE ASSEMBLY
PRINTHEAD POSITION ASSEMBLY
PRINTHEAD POSITION MOTOR
This is the motor that drives the cam shaft to
control the up and down motion of the printhead.
Some of the procedures in this section require that
the electrical power to the machine remain ON.
1. Remove the outside cradle cover.
2. Cycle the machine. Watch the printhead
position motor to ensure it rotates. If it does,
the printhead position motor is working properly
and troubleshooting of the printhead stepper
drive (page 3-53) is required.
3. Remove power from the machine.
TESTING
USE EXTREME CAUTION WHILE SERVICING
A MACHINE WHILE POWER IS APPLIED.
UNEXPECTE
D MACHINE STARTUP CAN
CAUSE SERIOUS INJURY.
WARNING
DO NOT ATTEMPT TO SERVICE THE
MACHINE DURING NORMAL OPERATION.
KEEP HANDS AND ARMS CLEAR OF
MOVING PARTS.
WARNING
WHILE TESTING ELECTRICAL
COMPONENTS WITH POWER APPLIED TO
THE MACHINE, USE PROPER
TROUBLES
HOOTING TECHNIQUES TO
AVOID ELECTRICAL SHOCK.
WARNING
Outside Cradle
Screws
Figure 2-219. Removing the Outside Cradle Cover
Always remove electrical power from the
SX

prior to performing any maintenance
on the machine.
WARNING