Backlash Adjsutment - Epson Stylus PHOTO 890 Service Manual

EPSON Stylus Photo 890/1280/1290

5.2.2 Backlash Adjsutment

This section describes Backlash Adjsutment that is to be made after removing the PF
motor. This adjustment provides an appropriate backlash (
motor pinion gear and the gear (76). You need to make this adjustment when you
replace any of the following parts:
n
PF motor assembly
n
Gear 76
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PF roller unit
Failure in making this adjustment causes the printer to operate
C A U T I O N
abnormally as described below:
n
If backlash is too little:
1. The PF motor dose not rotate correctly and paper feeding
accuracy declines.
2. Gear 76 and the PF pinion gear make abnormal noises
during printing.
n
If backlash is too large, the PF motor dose not rotate correctly
and paper feeding accuracy declines.
ADJUSTMENT
Before you begin, make sure the following parts are removed:
=
0.1 mm or less) for PF
See the following figure for locations.
Adjustment
n
COMBINATION GEAR, 13.5, 30
n
TRAY, ABSORBER ASSEMBLY
n
HOUSING, PANEL, LEFT
n
HOUSING, REINFORCING, LEFT
HOUSING,
REINFORCING,
Figure 5-4. Parts to Remove
Be careful not to damage the PF Loop scale when removing
C A U T I O N
COMBINATION GEAR, 13.5, 30.
Revision C
COMBINATIO
N GEAR, 13.5,30
HOUSING, PANEL,
LEFT
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