Epson Artison 800 Service Manual page 235

Epson Artisan 800/Epson Stylus Photo PX800FW/TX800FW/Epson Artisan 700/Epson Stylus Photo PX700W/TX700W
Preparation
Preparing the parallelism adjustment jigs
After assembling the parallelism adjustment jigs, check the origin of each dial
gauge using the fixtures for precision control, and adjust them if necessary.
1. Attach the bits to the shafts of the dial gauges of parallelism adjustment jig.
2. Place the jigs on the fixtures for precision control.
3. Keeping the jig on the fixture, loosen the screws of the jigs with hex wrench,
and adjust the jigs until the values on each dial gauge become those shown in
Figure. 5-32 by sliding the dial gauge up and down.
4. Turn the scale of the dial gauge A keeping it on the fixture until the value
becomes 30.
A
Origins
A B,C,D
Figure 5-32. Setting the origins of dial gauges
ADJUSTMENT
D
B
C
How to set origins
Loosen the screw for each dial gauge and
adjust it by sliding the gauges up and down.
Adjustment without Using Adjustment Program
http://www.manuals4you.com
Checking the status of printer mechanism
Before starting the PG adjustment, confirm the printer mechanism is in the
following status.
• The phases of the spur gear of APG Assy and the Carriage Shaft have been
aligned correctly when assembling the carriage.
Assembled in this status
Figure 5-33. Phase of the spur gear of APG Assy
• The centers of parallelism adjustment bushings on the sides of printer
mechanism are set on the ribs of the frame.
Rear of 80 column side
Rib
Front of 80 column side
Rib
Figure 5-34. Positions of parallelism adjustment bushings
Revision C
Carriage Shaft
Rear of 0 column side
Rib
Front of 0 column side
Rib
C.B.S (P4). 3x8(7±1Kgfcm)
236
Confidential