Epson Stylus Pro 9900 - Ink Mark Sensor Height Adjustment

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908 Revision I
ADJUSTMENT Head Related Adjustments 399
Confidential
5.4.10 Ink Mark Sensor Height Adjustment
This allows you to adjust the position of the Ink Mark Sensor to make proper position
to the platen.
REQUIRED TOOLS
 Thickness Gauge (2.6/2.7)
 Metal Ruler
STANDARD VALUE
 2.6 pass
 2.7 stop
PROCEDURE
1. Turn the printer ON in the Serviceman Mode.
Turn the power ON while pressing [Menu ] + [Paper Feed ] + [OK]
simultaneously.
2. When any paper is loaded, remove it.
NOTE: A paper out error occurs at this time, but the adjustment can be
continued.
3. Select SELF TESTING
→ Mecha Adjustment → IM Sensor Gap.
4. Press [OK] while [Enter] Un Cap is displayed.
The carriage unit will be unlocked.
5. Open the Front Cover (Middle).
6. Secure the ruler with the double-sided tape on the position shown in Figure 5-60.
7. Place the thickness gauge on the ruler. See Figure 5-60 for the position.
8. Move the Carriage Unit slowly over the gauge.
9. Use the thickness gauge of 2.6 and 2.7 and check if the height of the Ink Mark
Sensor is within the standard value.
 Within the standard value: Go to Step 12
 Out of the range: Go to Step 10
Figure 5-60. Position for the ruler and gauge
10. Loosen the screws (x3) that secure the Ink Mark Sensor Assy.
11. Slide the Ink Mark Sensor to up or down to adjust the height.
After the adjustment, secure the screws and return to Step 8.
12. Close the Front Cover (Middle) and press [OK] while [Enter] Cap is displayed.
The Carriage Unit will be locked.
13. Turn the printer OFF.
Thickness Gauge
Ruler
Screws
Thickness Gauge
Ruler
Platen
Sub Platen
Cross-section diagram