Epson Stylus Pro 7700 Service Manual page 365

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908
4. Turn the printer ON in the Serviceman Mode.
Turn the power ON while pressing [Menu
simultaneously.
→
5. Select SELF TESTING Mecha Adjustment
6. Press [OK] while [Enter] Start
The Carriage Unit goes and returns three times.
7. Check the CR Timing Belt behavior for the Driven pulley while the Carriage Unit
is running.
The belt runs in the middle of the driven pulley: Go to
The belt does not run stably in the middle of the pulley or keeps running on
one end of the pulley: Go to
CR Timing Belt Driven Pulley
OK
Figure 5-12. Slant Adjustment of Driven Pulley
ADJUSTMENT
] + [Paper Feed ] + [OK]
→
CR Ageing.
is displayed.
Step 12
Step 8
NG
8. Select Mecha Adjustment
9. Press [OK] while
The lock of the Carriage Unit is released.
10. Remove the screw A.
11. Adjust the Driven Pulley slant with the slant adjusting screw. After adjusting the
slant, attach the screw A and return to
The belt leans to the upper side of the Driven Pulley: Rotate the screw in a
clockwise.
The belt leans to the lower side of the Driven Pulley: Rotate the screw in a
counterclockwise.
NG
CR Related Adjustment
→
Temporary PG.
[Enter] Un Cap is displayed.
Step 5.
Slant adjusting screw
Screw A
Figure 5-13. Slant Adjusting Screw
Revision I
365
Confidential