Sharp Sx™ With Printer - Sharp SX 1075 Service Maintenance Manual

Sharp SX with Printer
The Sharp SX with Printer utilizes seven drive
belts during operation: one to drive the pressure
jaw, two to drive film feed rollers, one for the platen
roller, one for the printhead lift cams, and two to
drive the printer ribbon rewind hub.
WARNING
Always remove electrical power from the
SX prior to performing any maintenance
on the machine.
1. Follow steps 1 through 6 on pages 2-6 and 2-7
to check for proper tension of the pressure bar
drive belt and the two film feed drive belts.
2. Check the platen roller drive belt for tension
(Figure 2-10).
approximately 1/16" using one finger to push
on the center of the belt span.
Platen Roller
Drive Belt
Figure 2-10 Platen Roller Drive Belt
Note: Cradle Removed for Clarity
3. If belt tension is incorrect, loosen the idler
screw and slide idler to add or remove tension.
Tighten screw and check belt.
necessary.
4. Replace the pulley guard by reinstalling the two
mounting screws.
5. Remove the four screws that hold the outside
cradle cover (Figure 2-11). Slide the cover off
to expose the ribbon rewind hub drive and the
printhead lift drive.
SX™
Service and Maintenance Manual
MACHINE ADJUSTMENTS
This belt should deflect
Repeat as
SECTION 2 – MAINTENANCE AND ADJUSTMENTS
Figure 2-11. Removing the Outside Cradle Cover
6. Check the tension on the ribbon rewind motor
drive belt (Figure 2-12) using the same
procedure for the film feed drive belt. This belt
should deflect about 1/16".
Figure 2-12. Ribbon Rewind Motor Belt and
7. If belt does not have proper tension, loosen
four motor
pressure to motor towards the rear of the
machine. Retighten motor screws and check
for tension. Repeat as necessary.
2-8
Outside Cradle
Screws
Ribbon Rewind
Motor Belt
Printhead Lift
Drive Belt
Printhead Lift Drive Belt
mounting screws
960714-02B © 2007 I2407
and apply