Overview; Platen Gap Motor Placement Adjustment - Epson DFX-8500 Service Manual

4.1 OVERVIEW

This chapter describes the printer mechanism adjustments required after any part is replaced or repaired.
Perform the appropriate adjustments before assembling the printer.

4.2 PLATEN GAP MOTOR PLACEMENT ADJUSTMENT

In this adjustment, the platen gap motor pinion gear must mesh smoothly with the platen gap transmission
gear. If the pinion gear is poorly aligned or the two gears are too tight, the printer operation will be noisy or
the character density will be incorrect.
If the platen gap motor placement is too tight, the platen gap motor won't rotate smoothly and the panel will
flash "E3."
1. Loosen 2 screws securing the platen gap motor to the left frame. (See Figure 4-1.)
2. Make sure the platen gap motor pinion gear is properly aligned with the platen gap transmission gear.
The space between them should be 0.002 to 0.01 inches (0.05 to 0.15 mm). (See Figure 4-1.)
3. Tighten the 2 screws securing the platen gap motor to the left frame. (See Figure 4-1.)
Figure 4-1. Platen Gap Motor Mounting Position Adjustment
CAUTION
Screws
Platen Gap Motor
Platen Gap Transmission Gear
0.002-0.01 inch
(0.05 - 0.15 mm)
Platen Gap Motor
Pinion Gear
ADJUSTMENT
4-1