Epson 4880 C Service Manual

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2914.2.8.2  Valve Assy., Head1. Remove the Carriage Cover.
(Refer to 4.2.4.3 C593_SUB Board (p234).)
2. Loosen the eight Coupling Screw, M7s that secure the Tube, Supply, 
Ink to remove the Tube, Supply, Ink from the Head Unit.Figure 4-115. Tube, Supply, Ink Removal




When performing the following work, remove ink out of the 
ink route before removing the Valve Assy., Head. Refer to 
Chapter 5 “Adjustment” (p.366) to know how to remove ink.

When performing the following steps, pay attention to the 
followings:
„Prepare pieces of cloth in case the ink leaks or spatters 
around the printer.
„Do not allow dust or foreign matters to get into the 
Tube, Supply, Ink.
„Do not bend the Tube, Supply, Ink or damage it with 
frame edges.
Coupling Screw, M7Tube, Supply, Ink
Head Unit 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 292
„Make sure that the O-ring, Coupling M7 is attached 
approximately 2mm away from the end point of the 
Tube, Supply, Ink.
„The ink color marked on the Tube, Supply, Ink 
indicates its own color. Make sure that the marked color 
corresponds to the color of the socket before attaching 
the Tube, Supply, Ink.
„Attach the Tube, supply, Ink from the left in the order 
below and route it, referring to the figure below.
LK (Y) 
→ LM (M) 
→ LC (C) 
→ PK (MK) 
→ MK 
→ C →
 M 
→ 
Y 
„Insert the Tube, Supply, Ink all the way seated, then 
tighten the Coupling Screw, M7.
Approximately 2mm
O-ring, coupling M7
LK (Y)
LM (M)
LC (C)
PK (MK)
MK
C
M
Y
M
„To prevent from both ink leak and damage on the joint 
screw, be sure to tighten the Coupling Screw, M7 with 
prescribed torgue and the tool sperified below.
•Tool: Torque Wrench 1.25/1.75 (1277142)
•Tightning torque: 1.25 ( ± 0.25) kgf • cm 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 293 3. Remove the Head Unit from the Carriage Unit.
(Refer to 4.2.7.1 Carriage Unit (p266).)
4. Separate the Carriage, C from the Carriage, B.
(Refer to 4.2.8.1 Printhead (p285).)
5. Draw out the Plate, Damper with a plier or a similar tool.
(Refer to Figure 4-116.)
6. Remove the Valve Assy., Head by following the steps below.
(Refer to Figure 4-117.)
6-1. Slide the joint section on the Valve Assy., Head, which connects 
Tube, Supply, Ink, to remove the joint section.
6-2. Release the tab and remove the Valve Assy., Head in the 
direction of an allow.Figure 4-116. Plate, Damper Drawing
Figure 4-117. Valve Assy., Head Removal
When performing the following work, pay attention to the 
followings:
„Do not hold the film area of the Valve Assy., Head.
„Do not damage or deform the joint section on the Valve 
Assy., Head which connects the Tube, Supply, Ink.





Be sure to refer to Chapter 5 “Adjustment” (p.366) and 
perform specified adjustments after replacing or removing 
the Valve Assy., Head.
Plate, Damper1
Joint Section
1
2
Tab
Valve Assy., Head
Film Area 
(both sides) 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2944.2.8.3  Gutter, Ink1.Remove Fan, Blower (p244).
2. Remove the two screws securing Duct, Air, D and remove Duct, Air, D. 
(Refer to Figure 4-118.)
„C.B.S. (P2) 3x6: 2 pcs.
3. Remove the two screws securing Duct, Air, A and remove Duct, Air, A. 
(Refer to Figure 4-119.)
„C.B.S. (P2) 3x6: 2 pcs.
4. Remove the screw securing Gutter, Waste Ink. (Refer to Figure 4-119.)
„C.B.S. (P2) 3x6: 1 pc.
5. Slide the Gutter, Waste Ink to the left, move it downward and then 
remove it to the left side. (Refer to Figure 4-119.)Figure 4-118. Duct, Air, D Removal
Figure 4-119. Duct, Air, A and Gutter, Waste Ink Removal
When removing the Gutter, Ink, prepare pieces of cloth in 
case the waste ink leaks or splatter inside the printer. Make 
sure that the ink is not ejected from the ink ejection route 
during the work.„Insert the shaft of the Duct, Air, D into the bearing hole 
of Gutter, Ink to position the Duct, Air, D.
„Secure with screws after confirming that Gutter, Waste 
Ink is closely fitted to the printer frame.
Duct, Air, D
Step 2Duct, Air, A
Gutter, Waste Ink
Step 5
Step 4
Step 3
Closely Fitted Location 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 295 6. Remove the screw securing Gutter, Ink.
 (Refer to Figure 4-120.)
„C.B. (P1) 3x4: 1 pc.
7. Remove Gutter, Ink by following the steps below. (Refer to Figure 4-121.)
7-1. Slide Gutter, Ink to left side.
7-2. Move Gutter, Ink right side downward.
7-3. Pull out Gutter, Ink left lower side toward you.
Figure 4-120. Screw Securing Gutter, Ink
Figure 4-121. Gutter, Ink Removal
Make sure that Push Spring, Absorbent Pad, Gutter is 
attached to Gutter, Ink. If it has removed, install it as 
shown in the figure below.
Push Spring, Absorbent Pad, Gutter
Assembly Catch
Assembly Catch
Gutter, Ink
C.B. (P1) 3x41
2
3 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2964.2.8.4  I/H Left Unit / I/H Lever Sensor (Left)1.Remove Panel, Front/Panel Unit (p219).
2. Open Cover, I/H, Left.
3. Hold both ends of Cover, I/H, Left and disengage each side from the 
hinge sockets. (Refer to Figure 4-122.)
4. Remove the screw securing the I/C, Lock Lever, Knob, Left and then 
remove the I/C, Lock Lever, Knob, Left. 
(Refer to Figure 4-123.)
„C.B.P. 3x6: 1 pc.
Figure 4-122. Cover, I/H, Left Removal
Figure 4-123. I/C, Lock Lever, Knob, Left Removal
When performing the following work, remove ink out of the 
the ink path before removing the IH Left Unit. Refer to 
Chapter 5 “Adjustment” (p.366) to know how to remove ink.The I/C, Lock Lever, Knob, Left has upward and downward 
directions. Install it in the correct direction.
Release Mark: TopSet Mark: Bottom
Hinge Sockets
I/C, Lock Lever, Knob, Left
C.B.P. 3x6 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 297 5. Remove the four screws securing Guide, I/H, Left and remove Guide, I/
H, Left by pulling forward. (Refer to Figure 4-124.)
„C.B.S. 3x6: 4 pcs.
6. Remove the screw securing Installation Plate, I/H Guide, A and remove 
Installation Plate, I/H Guide, A. 
(Refer to Figure 4-125.)
„C.B.S. 3x6: 1pc.
Figure 4-124. Guide, I/H, Left Removal
Figure 4-125. Installation Plate, I/H Guide, A Removal
Guide, I/H, Left
C.B.S. 3x6
C.B.S. 3x6
Installation Plate, I/H Guide, A
Dowels and Positioning Holes
C.B.S. 3x6 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 298 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 4-126. Installation Plate, I/H Guide, C Removal
„The shapes of Installation Plate, I/H Guide, A and 
Installation Plate, I/H Guide, C differ, so be careful 
when installing them.
„Align Installation Plate, I/H Guide, A and Installation 
Plate, I/H Guide, C dowels (2 each) with frame 
positioning holes (2 each).
(Refer to Figure 4-125 and  4-126.)
Installation Plate, I/H Guide, A
Installation Plate, I/H Guide, C
Installation Plate, I/H Guide, C
Dowels and Positioning Holes
C.B.S. 3x6 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 299 8. Peel acetate tape and release the four Tube, Supply, Ink from the notch 
of the frame. (Refer to Figure 4-127.)
9. Remove the two screws securing the front side of I/H Left Unit.
(Refer to Figure 4-128.)
„C.B.S. 3x6: 2 pcs.Figure 4-127. Releasing the Tube, Supply, Ink
Figure 4-128. I/H Left Unit Front Side_1
When performing the following step, be careful not to bend 
the Tube, Supply, Ink or scratch it with the edge of the 
frame.

The width of the frame notch allows passage of one tube at a 
time. Be sure to release each tube in order.„When installing “Tube, Supply, Ink” to the frame, secure 
it with acetate tape.
„The Tube, Supply, Ink should be slackened to the 
direction (center of the printer) as shown in Figure 4-127.
„For the 4-color model, place all the eight “Tube, Supply, 
Ink in the notch on the left frame, and secure them with 
acetate tape.
Acetate Tape
Tube, Supply, Ink
Notch
Slack Direction
I/H Left Unit
C.B.S. 3x6 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 300 10. Remove the six screws securing the I/H Left Unit to the pinter.
„C.B.S. 3x8: 6 pcs.
11. Disconnect the FFCs from the CN1 to CN3 connectors on the “C593_SUB-
D Board”, and pull out the FFCs toward the left side of the printer frame.
12. Peel off the acetate tape that secures the front side of the I/H Left Unit.
13. Remove the four screws securing rear side of I/H Left Unit.
(Refer to Figure 4-130.)
„C.B.S. 3x6: 4 pcs.
Figure 4-129. I/H Left Unit Front Side_2
Figure 4-130. Screws Securing Rear Side of I/H Left Unit
Harnesses are routed through the area of screws as shown 
by the arrows in Figure 4-130.
When installing the unit, install it without pinching 
harnesses by the screw after removing the Cover, Motor, 
PF. Refer to 4.2.6.4 ASF Phase Sensor (p263). 
Step 12
Acetate TapeC.B.S. 3x8
C.B.S. 3x6
Cover, Motor, PF