Sharp SX 1075 Service Maintenance Manual page 111

PRINTHEAD POSITION MOTOR (con't)
7. Test the motor cable. Using a Digital Volt/Ohm
Meter (DVOM) set to test for continuity, probe
between pins A+ & A- and B+ & B-. If the
cable passes all continuity checks, it is
functioning properly and further troubleshooting
is required (Refer Section 3 Component
Repair:
Printhead Stepper Drive section for a
more detailed explanation).
Figure 3-224 Print Head Stepper Drive
ADJUSTMENT
The printhead position motor is adjustment-free.
REPLACEMENT
1. Remove the outside cradle cover.
SX™
Service and Maintenance Manual
PRINTHEAD CRADLE ASSEMBLY
A+
A-
B+
B-
Motor
Wires
SECTION 3 – COMPONENT REPAIR
Figure 3-225. Removing the Outside Cradle Cover
2. Unplug the motor cable.
3. Remove the four bolts that mount the printhead
position motor to the outside cradle plate.
Slide the motor to the front of the machine to
release the belt from the motor pulley. Once
the belt is free, slide the motor up to remove
from the machine.
Figure 3-226. Printhead Position Motor Screws
3-91
Outside Cradle
Screws
960714-02B © 2007 I2407