Epson 4880 C Service Manual

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3514.2.9.4  P_THICK Sensor (0.8) / P_THICK Sensor (0.3)1.Remove Cover, Rear (p223).
2. Remove PT Sensor Unit. (Refer to 4.2.9.1 Release Unit (p343).)
3. Disconnect connectors from P_THICK Sensors.
4. Release the three tabs securing P_THICK Sensor, and remove the 
P_THICK Sensors.
Figure 4-212. P_THICK Sensors Removal




Be sure to refer to Chapter 5 “Adjustment” (p.366) and 
perform specified...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3524.2.9.5  PE Sensor1.Remove Release Unit (p343).
2. As seen from the printer rear surface, release the two left Extension 
Spring, 8.08s from hooks on the frame. (Refer to Figure 4-213.)
3. Peel off acetate tape securing the FFC. (Refer to Figure 4-213.)
4. Remove the screw securing Holder, Detector, PE.
(Refer to Figure 4-213.)
„C.B.S. 3x6: 1 pc.
5. Slide Holder, Detector, PE to the rear side, release the...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 353 6. Release the two tabs securing PE Sensor and remove PE Sensor from 
Holder, Detector, PE.
7. Disconnect FFC from PE Sensor.
Figure 4-215. PE Sensor Removal
Checking front and back of FFC and connect properly.





Be sure to refer to Chapter 5 “Adjustment” (p.366) and 
perform specified adjustments after replacing the PE 
Sensor.
PE Sensor
FFC
Tabs 

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3544.2.9.6  Rear Manual Insertion Sensor1.Remove Holder, Roller, Unit (p214).
2.Remove Paper Guide Assy., M, SP (p215).
3. Release Rear Manual Insertion Sensor harness from the two tabs. 
(Refer to Figure 4-216.)
4. Release Guide, Roll Paper along with Rear Manual Insertion Sensor. 
(Refer to 4.2.9.1 Release Unit (p343).)
5. Remove the screw securing Installation Plate, Detector, Rear and 
remove...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 355 6. Release the two tabs securing Rear Manual Insertion Sensor and remove 
Rear Manual Insertion Sensor from Installation Plate, Detector, Rear. 
(Refer to Figure 4-218.)
7. Disconnect the connector from Rear Manual Insertion Sensor. 
(Refer to Figure 4-219.)
Figure 4-218. Installation Plate, Detector, Rear Removal
Figure 4-219. Rear Manual Insertion Sensor Removal
„Route Rear Manual Insertion Sensor...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3564.2.9.7  Paper Eject Phase Sensor1. Pull out I/H Left Unit from printer.
(Refer to 4.2.8.4 I/H Left Unit / I/H Lever Sensor (Left) (p296).)
2. Release the two tabs securing Paper Eject Phase Sensor and remove 
Paper Eject Phase Sensor.
3. Disconnect the connector from Paper Eject Phase Sensor.4.2.9.8  Paper Eject Release Sensor1. Pull out I/H Right Unit from printer. 
(Refer to 4.2.8.5 I/H Right Unit /...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3574.2.9.9  PF Encoder Sensor1.Remove Cover, Side, Left (p216).
2. Remove the two screws securing the PF Encoder Sensor.
„C.P.P. 2.6x8: 2 pcs.
3. Disconnect the connector from the PF Encoder Sensor and then remove 
the PF Encoder Sensor.
Figure 4-222. PF Encoder Sensor Removal
Be careful not to deform or damage the Scale, PF attached 
to the Pulley, Roller, PF.„Align the two dowels of the PF Encoder...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3584.2.10  Harness RoutingThis section explains cautions and points in routing the harnesses. Referring to 
this section, route the harnesses correctly. For the sections that is not 
described here, refer to the corresponding diassembly/assembly procedures.4.2.10.1  Harnesses on Left Side of PrinterPG Sensor • Harness
†Should be secured with the parts below.
„Clamp: 1 pc.
„Acetate tape: 1 pc.
Figure 4-223....

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 359Harness, Head / Harness, R1 / Harness, R2
†
Should be routed along the outside of the two Harness, Heads and the 
Harness, Head, Intermit from the  C593_MAIN Board until they reach 
the point where the Harness, R1 and Harness, R2 are connected to the 
C593_SUB-C Board, and there, get the Harness, R1 and Harness, R2 
through under the two Harness, Heads and the Harness, Head, Intermit.
Figure 4-225. Head...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3604.2.10.2  Harnesses on Right Side of PrinterRouting on the right frame
†Should be secured with the parts below.
„Clamp: 4 pcs.
„Acetate tape: 6 pcs.
Figure 4-228. Routing on the Right Frame
Acetate tapes
Acetate tapes
Clamps