Epson 4880 C Service Manual

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 301 14. Disconnect Harness, CSICs (4 connectors: CN38, CN40, CN41, CN44) 
and I/H Lever Sensor (Left)s harness (CN37: black, 2 pin) from 
C593_SUB-C Board.
(Refer to 4.2.4.5 C593_SUB-C Board (p238).)
15. Peel two pieces of acetate tape and release the four Harness, CSICs and 
I/H Lever Sensor (Left)s harness. (Refer to Figure 4-131.)
16. Pull the I/H Left Unit forward from the printer while pulling the four 
Harness, CSIC and I/H Lever Sensor (Left) harness from the hole of the 
frame.
Figure 4-131. Releasing the Harnesses
Figure 4-132. I/H Left Unit Removal
Acetate TapesHarness, CSIC
I/H Lever Sensor (Left) Harness
Pull harness through this hole
1
2 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 302
„Make the rear side screw stop tabs stay under the 
Cover, Motor, PF.
„The four grounding springs on the top of the I/H Left 
Unit make contact with the printer frame, so install the 
I/H Left Unit while lightly holding down the grounding 
springs so as not to deform them.
Cover, Motor, PF
Screw Stop Tabs
Grounding Springs 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 303 17. Pick up and release the two tabs securing the I/H Lever Sensor (Left) and 
remove the I/H Lever Sensor (Left).  (Refer to Figure 4-133.)
18. Disconnect connector from I/H Lever Sensor (Left) 
(Refer to Figure 4-133.)
19. Remove the two screws securing Cover, Holder, IC, Left and remove 
Cover, Holder, IC, Left. 
(Refer to Figure 4-134.)
„C.B.S. 3x6: 2pcs.
Figure 4-133. I/H Lever Sensor (Left) Removal
Figure 4-134. Cover, Holder, IC, Left Removal
„When the Ink Lever is installed against the angle set 
location as shown in the illustration, confirm that the two 
holes of Fan Gear, 34 form a line parallel to the bottom 
of Frame, Holder, IC.
„Align the two dowels on holder side with the two 
positioning holes on the Cover, Holder, IC.
(Refer to Figure 4-134.)Ink LeverAngle Set Location
Holes
Parallel Alignment
Frame, Holder, IC
Fan Gear, 34
I/H Lever Sensor (Left)
Tabs
Connector
Dowels and Positioning Holes
C.B.S. 3x6
Cover, Holder, IC, Left 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 304 20. Loosen the four Coupling Screw, M7 securing the four Tube, Supply, 
Inks and then disconnect Tube, Supply, Ink from I/H Left Unit.
Figure 4-135. I/H Left Unit Removal
When performing the following steps, be careful of the 
points below.
„As ink may leak or splatter, have cleaning rags ready 
and prevent ink from getting on the surrounding work 
area.
„Prevent dust and dirt from getting inside the Tube, 
Supply, Ink.
	


The 4-color model (Stylus Pro 4400) is not equipped with I/H 
Right Unit, so all the eight Tube, Supply, Inks are 
connected to I/H Left Unit.
Refer to 4.2.11.1 I/H Left Unit / I/H Lever Sensor (Left) (4-
color model) (p362), when disassembling the 4-color model 
(Stylus Pro 4400).„Confirm that O-Ring, Coupling M7 has been installed.
„The Tube, Supply, Ink has been marked with its color. 
Install while confirming that the mark matches the 
receptacle.
„Use the following order to install the Tube, Supply, Ink 
while routing it to the installation location.
M →C → MK → Y
„Refer to Figure 4-135 and properly route Tube, Supply, 
Ink.
„Firmly insert Tube, Supply, Ink into receptacles and 
tighten Coupling Screw, M7.
O-Ring, Coupling M7
„To prevent from both ink leak and damage on the joint 
screw, be sure to tighten the Coupring Screw, M7 with 
the prescribed torque and the tool specified below.
•Tool: Torque Wrench 1.25/1.75 (1277142)
•Tightning torque: 1.25 ( ± 0.25) kgf • cm
Locations where ink tubes are routed
Coupling Screw, M7
Tube, Supply, Ink 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3054.2.8.5  I/H Right Unit / I/H Lever Sensor (Right)1.Remove Panel, Front/Panel Unit (p219).
2. Open Cover, I/H, Right.
3. Hold both ends of Cover, I/H, Right and disengage each side from the 
hinge sockets. (Refer to Figure 4-136.)
4. Remove the screw securing the I/C, Lock Lever, Knob, Right and remove 
the I/C, Lock Lever, Knob, Right. 
(Refer to Figure 4-137.)
„C.B.P. 3x6: 1 pc.Figure 4-136. Cover, I/H, Right Removal
Figure 4-137. I/C, Lock Lever, Knob, Right Removal
When performing the following work, remove ink out of the 
ink path before removing the IH Right Unit. Refer to 
Chapter 5 “Adjustment” (p.366) to know how to remove ink.
	


The 4-color model is not equipped with this unit.
Refer to 4.2.11.2 Cover, Front, Right 4 Color (4-color Model) 
(p365) for information on how to remove the I/H Right Unit.The I/C, Lock Lever, Knob, Right has upward and 
downward directions. Install it in the correct direction.
Release Mark: TopSet Mark: Bottom
Hinge Sockets
I/C, Lock Lever, Knob, Right
C.B.P. 3x6 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 306 5. Remove the four screws securing Guide, I/H, Right and remove Guide, I/
H, Right by pulling forward. (Refer to Figure 4-138.)
„C.B.S. 3x6: 4 pcs.
6. Remove the screw securing Installation Plate, I/H Guide, B and then 
remove Installation Plate, I/H Guide, B. 
(Refer to Figure 4-139.)
„C.B.S. 3x6: 2 pcs.
Figure 4-138. Screws  Securing Guide,  I/H, Right
Figure 4-139. Installation Plate, I/H Guide, B Removal
Guide, I/H, Right
C.B.S. 3x6C.B.S. 3x6
Installation Plate, I/H 
Guide, B
Dowels and Positioning Holes
C.B.S. 3x6 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 307 7. Remove the screw securing Installation Plate, I/H Guide, C and remove 
Installation Plate, I/H Guide, C.
„C.B.S. 3x6: 1 pc.
Figure 4-140. Installation Plate, I/H Guide, C Removal
„The shapes of Installation Plate, I/H Guide, B and 
Installation Plate, I/H Guide, C differ, so be careful 
when installing them.
„Align Installation Plate, I/H Guide, B and Installation 
Plate, I/H Guide, C dowels (2 each) with frame 
positioning holes (2 each). 
(Refer to Figure 4-139 and  4-140.)
Installation Plate, I/H Guide, C
Installation Plate, I/H Guide, B
Dowels and Positioning Holes
Installation Plate, 
I/H Guide, C
C.B.S. 3x6 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 308 8. Peel acetate tape and release the four Tube, Supply, Ink from the notch 
of the frame. (Refer to Figure 4-141.)
Figure 4-141. Releasing the Tube, Supply, Ink
When performing the following step, be careful not to bend 
the Tube, Supply, Ink or scratch it with the edge of the 
frame.„Secure “Tube, Supply, Ink” to the frame with acetate 
tape.
„The Tube, Supply, Ink should be slackened to the 
direction (center of the printer) as shown in Figure 4-141.
Tube, Supply, Ink
Notch
Slack Direction
Acetate Tape 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 309 9. Disconnect Harness, CSICs (5 connectors: CN39, CN42, CN43, CN45, 
CN461) and I/H Lever Sensor (Right) harness (CN36: white, 2 pin) from 
C511_SUB-B Board. 
(Refer to 4.2.4.4 C511_SUB-B Board (p236).)
10. Peel off four pieces of acetate tape shown in Figure 4-142 and 4-143. 
Figure 4-142. Releasing Harnesses_1
Figure 4-143. Releasing Harnesses_2
Step 10
Acetate TapeStep 10
Acetate Tape 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 310 11. Remove the four clamps securing the harnesses. (The Sheet Ink Stopper 
will be released at the same time.)
12. Release both the FFC and the harnesses from the tabs of the printer.
(Refer to Figure 4-145.)
Figure 4-144. Releasing Harnesses_3
Figure 4-145. Releasing Harnesses_4
Sheet Ink Stopper, D should be attached to the printer 
frame with the three tabs of the clamps inside the printer as 
shown in Figure 4-144.
Secured together with Sheet 
Ink Stopper, D
Sheet Ink Stopper, D
Clamps
Tabs