EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Disassembly & Assembly Disassembly Procedures 263
4.2.6.4  ASF Phase Sensor
1. Remove "Cover, Side, Left" (p216).
2. Remove the four screws securing "Cover, Motor, PF" and then remove 
"Cover, Motor, PF" in the upward direction while avoiding the "Roller, PF". 
(Refer to Figure 4-72.)
 C.B.S. 3x6: 4 pcs.
3. Rotate "Lever, Hopper, Release" with hand and align the "Wheel, Detector" 
notch with the "ASF Phase Sensor" detection section.
(Refer to Figure 4-73.)
Figure 4-72. Cover, Motor, PF Removal
Figure 4-73. Wheel, Detector Removal Position
1
2
Cover, Motor, PF
Roller, PF
 C.B.S. 3x6
 C.B.S. 3x6
ASF Phase Sensor
Notch and 
Detection Section
Wheel, Detector
Lever, Hopper, Release