Epson Stylus PHOTO 1270 Service Manual page 122

EPSON Stylus Photo 870/1270
1. Loosen the screw (CBS, 3x6) securing the PF motor assembly to the
left frame by rotating it half.
2. Holding the PF motor assembly, get the pinion mesh the gear 76.
3. Press the gear 76 by the point 2 in the figure below lightly and release
it to ensure the gear comes back to its original position.
2
3
GEAR, 76
Figure 5-4. Checking for Gear Engagement
When pressing the gear 76 together with the PF scale, be
C A U T I O N
careful not to damage or stain the scale.
4) Press the gear by the indicated positions 1 and 3 (each point is 2.5 cm
apart from the point 2) and check that the gear squeaks at each point.
If not, start over from the step 2.
ADJUSTMENT
1
2
3
PINION
5. Fasten the screw (CBS, 3x6) to secure the PF motor assembly to the
left frame.
6. Press the gear 76 by the point 2 and release it again to ensure it
returns to its original position.
7. Using a microscope, check for a correct backlash. Backlash at its
minimum point should be 0 - 0.1 mm. If larger, repeat the adjustment.
Figure 5-5. Checking for the Backlash
Adjustment
Revision B
GEAR, 76
0 - 0.1 mm
PINION
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