Epson Stylus Pro 4900/Epson Stylus Pro 4910  Revision A
DISASSEMBLY & ASSEMBLY  Disassembly and Assembly Procedure  173
Confidential
3.4.4.4  Ink Mark Sensor
1. Remove the Front Cover. (p142)
2. Remove the Control Panel Cover. (p136)
3. Remove the Right Upper Cover. (p138)
4. Remove the Right Cover. (p139)
5. Remove the Left Cover. (p137)
6. Unlock the carriage, and move the CR Unit to the left end. (p124)
7. Remove the CR Cover. (p149)
8. Remove the Ink Selector Assy from the CR Unit. 
(Step 9 to Step 14 in “3.4.9.1 Ink Selector Assy” (P. 229))
9. Remove the CR Unit. (Step 1 to Step 20 in “3.4.4.5 CR Unit/CR Belt” (P. 175))
10. Remove the two screws that secure the sensor cover, and remove the sensor cover.
A)  Silver, Phillips, Bind P-tite with S.W & P.W. M2.3x10 (bit: No.1): two pieces
Figure 3-82.  Removing the sensor cover
C A U T I O N
Be sure to move the CR Unit to the left end before performing the 
following steps. Performing the following step with the CR on the 
platen may damage the Printhead.
Sensor cover
A
A