Epson Stylus Pro 9900 - Page 365

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908 Revision I
ADJUSTMENT CR Related Adjustment 365
Confidential
4. Turn the printer ON in the Serviceman Mode.
Turn the power ON while pressing [Menu ] + [Paper Feed ] + [OK]
simultaneously.
5. Select SELF TESTING → Mecha Adjustment → CR Ageing.
6. Press [OK] while [Enter] Start is displayed.
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 Step 12
 The belt does not run stably in the middle of the pulley or keeps running on
one end of the pulley: Go to Step 8
Figure 5-12. Slant Adjustment of Driven Pulley
8. Select Mecha Adjustment → Temporary PG.
9. Press [OK] while [Enter] Un Cap is displayed.
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 Step 5.
 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.
Figure 5-13. Slant Adjusting Screw
CR Timing Belt
Driven Pulley
NG NGOK
Screw A
Slant adjusting screw