Epson 4880 C Service Manual

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 271 7. Remove the two screws securing the Motor Assy., CR and remove the 
Motor Assy., CR. (Refer to Figure 4-85.)
„C.C. 3x6: 2 pcs.
Figure 4-85. Motor Assy., CR Removal




Be sure to refer to Chapter 5 “Adjustment” (p.366) and 
perform specified adjustments after installing or replacing 
the Motor Assy., CR.
 C.C. 3x6
Belt, CR 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2724.2.7.3  Harness, CR1. Remove “Release, Lever Unit”. (Refer to 4.2.9.1 Release Unit (p343).)
2. Disconnect Motor Assy., CR harness (CN15: white, 2 pin) from the C533 
MAIN Board, and peel the acetate tape to release the harness. (Refer to 
4.2.4.1 C593 MAIN Board (p226).)
3. Release the “Motor Assy., CR” harness from the “Paper Guide, Lower” tab 
and the two channels. (Refer to Figure 4-86.)
4. Peel two pieces of acetate tape and release “Motor Assy., CR” harness, 
and then pull it out through the hole of the frame.(Refer to Figure 4-87.)
5. Cut the tying band and release the “Motor Assy., CR” harness.(Refer to 
Figure 4-87.)
Figure 4-86. Releasing the Harness_1
Figure 4-87. Releasing the Harness_2
Harness
Channels
Tab
Tying Band
Acetate Tape 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 273 6. Release the Motor Assy., CR harness from the four cramps, four pieces 
of acetate tape and the tab on the frame. (Refer to Figure 4-88.)
7. Disconnect the connector from “Motor Assy., CR” and remove “Harness, 
CR”.(Refer to Figure 4-83.)
Figure 4-88. Releasing the Harness_3
Acetate Tape (x3)
Clamps
Tab
Acetate TapeMotor Assy., CR
Fasten tube to motor end surface 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2744.2.7.4  Motor Assy., PG1.Remove Cover, Side, Right (p217).
2. Peel off the acetate tape and release the tab at the lower part of the 
Sheet, Ink, Stopper, C from the U-shaped cutout of the Frame, Base, 
Side, Right. (Refer to Figure 4-89.)
3. Disconnect relay connector. (Refer to Figure 4-90.)
4. Remove the acetate tape securing the harness, and release Harness, 
CSIC and Motor Assy., PG harness from Duct, Air, C hook. 
(Refer to Figure 4-90.)
5. Release Motor Assy., PG harness and Mount Assy., Plate, Motor, ASF, 
SP harness from the U-shaped cutout of the Frame, Base, Side, Right. 
(Refer to Figure 4-90.)
6. Peel acetate tape and release PG Motor harness. (Refer to Figure 4-90.)
Figure 4-89. Sheet, Ink, Stopper, C Release
Figure 4-90. Releasing the Harness
Frame, Base, Side, Right
Sheet, Ink, Stopper, C
Duct, Air, C
Harness, CSIC
Motor Assy., PG Harness
Step 3
Step 4 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 275 7. Remove the two screws securing Motor Assy., PG.
(Refer to Figure 4-91.)
„C.C. 3x6: 2 pcs.
8. Seen from the right side of the printer, slide the Motor Assy., PG through 
the upper right relief hole and then remove the Motor Assy., PG inward 
while passing the pinion gear through the relief hole. 
(Refer to Figure 4-91.)
Figure 4-91. Motor Assy., PG Removal
When performing the following steps, be careful not to 
scratch the frame with Motor Assy., PG pinion gear.Install PG Motor with the circuit board facing downward.





Be sure to refer to Chapter 5  “Adjustment” (p.366) and 
perform specified adjustments after replacing the Motor 
Assy., PG.
Circuit Board
Pinion Gear
Relief Hole
1
2
C.C. 3x6
PG Motor 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2764.2.7.5  CR_HP Sensor1.Remove Cover, Side, Right (p217).
2. Move Carriage Unit to center of printer.
(Refer to 4.2.4.3 C593_SUB Board (p234).)
3. Release CR_HP Sensor harness from clamp.
4. Unfasten the two upper hooks securing CR_HP Sensor, release the 
lower tab and then release CR_HP Sensor.
5. Disconnect the connector from CR_HP Sensor.
Figure 4-92. CR_HP Sensor Removal
After installing the CR_HP Sensor, wrap the harness 
around the outside as shown in Figure 4-92.
Wrap around
1
1
2
Clamp
ConnectororCR_HP Sensor
Tabs 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2774.2.7.6  Multi Sensor1.Remove Cover, Side, Left (p216).
2. Move Carriage Unit to center of printer. 
(Refer to 4.2.4.3 C593_SUB Board (p234).)
3. Remove the two screws securing Multi Sensor to the Carriage Unit.
(Refer to Figure 4-93.)
„C.B. (P2) 3x6: 2 pcs.
4. While holding the Multi Sensor so as not to drop, and move the Carriage 
Unit to the left end of the printer keeping clear of the platen.
5. Remove the Multi Sensor from the Carriage Unit in the downward 
direction. (Refer to Figure 4-94.)
6. Disconnect the connector connected to the Multi Sensor and remove the 
Multi Sensor. (Refer to Figure 4-95.)
Figure 4-93. Screws Securing Multi SensorFigure 4-94. Multi Sensor Removal
Figure 4-95. Connecting Status of Multi Sensor Connector




Be sure to refer to Chapter 5 “Adjustment” (p.366) and 
perform specified adjustments after replacing or installing a 
Multi Sensor.
C.B. (P2) 3x6
Connector 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2784.2.7.7  PG Phase Sensor1.Remove Cover, Side, Left (p216).
2.Remove Cover, Side, Right (p217).
3. Rotate the PG Cam manually so that the PG Lock Lever enter the groove 
at the extream end of the PG Cam as shown in Figure 4-96. Doing so 
releases the shield plate from the PG Phase Sensor.  
(Refer to Figure 4-96.)
Figure 4-96. Rotating the Shield Plate
	


As the PG Cam (Bush, Shaft, Rear) and PG Detection Shield 
Plate operate simultaneously, the shield plate can be rotated 
by rotating the PG Cam.
PG Cam
PG Lock Lever
Detection Section
Shield Plate 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 279 4. Remove Extension Spring, 2.58 from the frame and the two tabs of the 
Installation Plate, Detector, HP. (Refer to Figure 4-97.)
5. Disconnect the connector from the PG Phase Sensor.  
(Refer to Figure 4-98.)
6. Release the tabs securing the PG Phase Sensor and remove the PG 
Phase Sensor. (Refer to Figure 4-98.)
Figure 4-97. Extension Spring, 2.58 Removal
Figure 4-98. PG Phase Sensor Removal
Extension Spring, 2.58
Installation Plate, Detector, HP
Tabs
Hooks
Connector 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2804.2.7.8  CR Encoder Sensor1.Remove Cover, Rear (p223).
2. Move Carriage Unit to center of printer and remove the Carriage Cover. 
(Refer to 4.2.4.3 C593_SUB Board (p234).)
3. Disconnect the FFC from CR Encoder Sensor.
4. Remove the screw securing CR Encoder Sensor to the Carriage Unit 
and remove CR Encoder Sensor.
„C.P.P. 2.6x6: 1 pc.
Figure 4-99. CR Encoder Sensor Removal
Do not touch Scale, CR when removing CR Encoder 
Sensor.Align the two dowels on the CR Encorder Sensor with the 
two positioning holes on the Ink Tube Unit.





Be sure to refer to Chapter 5 “Adjustment” (p.366) and 
perform specified adjustments after replacing or installing 
the CR Encoder Sensor.
Dowels
Positioning holes
C.P.P. 2.6x6
Scale, CR
FFC
Shield Plate
CR Encoder Sensor