2. MAJOR UNIT REPLACEMENT
EO18-33011
2.8 REPLACING THE RIBBON MOTORS
2-12
4) Remove the four SMW-3x8 screws (small washer type) to detach both ribbon motors (feed and
rewind) from the ribbon motor unit.
5) After replacing the ribbon motors with new ones, reassemble in the following procedure. Attach
the ribbon motor (Feed) aligning the dowels on the ribbon motor mounting plate with the holes in
the ribbon motor unit.
When attaching the ribbon motor (Rewind), secure it with the SMW-3x8 screws (small washer
type) temporarily, insert a 0.06-mm thick backing paper between the motor pinion gear and the slit
gear (Rewind) for adjusting the back lash, and then tighten the screws pushing the motor pinion
gear against the slit gear (Rewind). Lastly remove the backing paper.
NOTES:
1. After installing the ribbon motors, check that there is proper back lash between the motor pinion
gear and the slit gear by rotating the ribbon holder.
2. Apply FLOIL to the pinion gears of the ribbon motors (feed and rewind) during reassembly. At this
time, be careful not to stain the slit sensor with FLOIL.
Ribbon Motor (Feed)
SMW-3x8 Screw
(Small washer type)
Ribbon Motor (Rewind)
Dowels
Apply FLOIL
G-488.
SMW-3x8 Screw
(Small washer type)
Ribbon Motor Unit
Fig. 2-17
Ribbon Motor (Rewind)
Ribbon Motor
Mounting Plate
CAUTION!
Never separate the ribbon motor mounting plate from the ribbon motor (Feed), as doing so
would require a special jig to reassemble it correctly.
Slit Gear (Rewind)
0.06-mm Thick Backing Paper
Motor Pinion
Gear
Slit Sensor
(Rewind)
Ribbon Holder
