Epson 4880 C Service Manual

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2214.2.3.6  Cover, Printer1.Remove Cover, Side, Left (p216).
2. Remove the two screws securing Plate, P Cover, Left. Then remove 
Plate, P Cover, Left by sliding it to the left side while supporting Cover 
Printer with your hand.
„C.B.S. 3x6: 2 pcs.
Figure 4-23. Plate, P Cover, Left Removal
Follow the steps below when installing Plate, P Cover, 
Left.
1. Insert Plate, P Cover, Left into gap between Cover,...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 222 3. Remove Cover, Printer upward by sliding to left side.
Figure 4-24. Cover, Printer Removal
Insert the right shaft of Cover, Printer into the shaft hole 
on Plate, P Cover, Right.
Shaft of Cover, Printer
Shaft Hole
Plate, P Cover, Right
1
2
Cover, Printer 

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2234.2.3.7  Cover, Rear1.Remove Cover, Printer (p221).
2.Remove Cover, Side, Right (p217).
3. Remove the three screws securing Cover, Rear and remove Cover, 
Rear upward.
„Shaft, Installation, CR: 2 pcs.
„C.B.S. 3x6: 1 pc.
Figure 4-25. Cover, Rear Removal
Align the two ribs of the Cover, Rear with the two 
positioning holes on theRelease Unit.
Ribs and Positioning Holes
Release Unit
Cover, Rear
Shaft,...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2244.2.3.8  P Cover Open Sensor1.Remove Panel, Front/Panel Unit (p219).
2. Release the two tabs securing P Cover Open Sensor and then release 
the P Cover Open Sensor.
3. Disconnect the connector from the P Cover Open Sensor.
Figure 4-26. P Cover Open Sensor Removal
Tabs
P Cover Open Sensor
Connector 

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2254.2.3.9  Rear Cover Sensor1.Remove Paper Guide Assy., M, SP (p215).
2. Remove the screw securing Rear Cover Sensor Unit to the printer frame. 
(Refer to Figure 4-27.)
„C.B.B. 2x10: 1 pc. 
3. Release the tab securing the “Rear Cover Sensor Unit” to the printer frame 
and remove Rear Cover Sensor Unit. (Refer to Figure 4-27.)
4. Disconnect the connector from the “Rear Cover Sensor”.
(Refer to Figure 4-28.)...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2264.2.4  Circuit Board RemovalThis section describes steps for removing “C593 MAIN Board“, “Power Supply 
Board”, and each “C593_SUB Board“.4.2.4.1  C593 MAIN Board1.Remove Holder, Roller, Unit (p214).
2.Remove Paper Guide Assy., M, SP (p215).
3. Remove the two screws securing Cover, Harness. (Refer to Figure 4-30.)
„C.B.S. 3x8: 2 pcs.
4. Slide Cover, Harness outward. (Refer to Figure 4-30.)
5. Release all...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 227 6. Remove the four screws securing the PCB Unit and pull the PCB Unit 
toward you.
„C.B.S. 3x6: 4 pcs.
Figure 4-32. Pulling Out the PCB Unit
Be careful not to pull the PCB Unit too hard and stretch the 
harness when performing the following steps.Align the left and right ribs of the PBC Unit with the 
position locators of the frame.
C.B.S. 3x6
C.B.S. 3x6
PCB Unit
Rib and Position Locator
Rib and...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 228 7. Disconnect all connectors/harnesses from C593 MAIN Board.Note 1: CN3, CN10, CN55 have only the pattern set and are not mounted connectors.
2: Refer to Figure 4-33 for connector positions.
3: When connecting connectors/harnesses to the C593 MAIN Board, connect 
them in the order shown in Table 4-4.
Figure 4-33. C593MAIN Board Connector Positions Table 4-4. Connectors/Harnesses Connected to C593 MAIN...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 229
„The connector number is marked on each connector on 
the board. When connecting the FFCs, match the 
connector numbers with the ones on the board with the 
number printed side of the FFCs facing toward the 
printer rear.
„The wires should be bundled with acetate tapes in three 
places as shown in the figure below to prevent them 
from getting onto the guide rail for the Type-B Board. If 
the wires are...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 230 8. Remove the screw securing USB connector.
(Refer to Figure 4-34.)
„C.P. 3x6: 1 pc.
9. Remove the two screws securing Cover, Connector, Upper; B and then 
remove Cover, Connector, Upper; B. (Refer to Figure 4-34.)
„C.B.S. 3x10: 2 pcs.
10. Remove the two screws securing Cover, I/F and Grounding Board, I/F 
and then remove Cover, I/F and Grounding Board, I/F.
(Refer to Figure 4-35.)
„C.B.S. 3x6: 1 pc....