Epson 4880 C Service Manual

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3314.2.8.11  Harness, Head, Intermit / Harness, Head1. Remove the Panel, Front.
(Refer to 4.2.3.5 Panel, Front/Panel Unit (p219).)
2. Disconnect the Harness, Head, Intermit and the three Harness, Heads 
from the following connectors on the C593 SUB-D Board.
(Refer to 4.2.4.6 C593_SUB-D Board (p240).)
„CN4: Harness, Head, C
„CN5: Harness, Head, A
„CN6: Harness, Head, B
3. Remove the clamp that attaches the FFC to the printer frame at the front of 
the printer. (Refer to Figure 4-174.)
4. Release the FFC from the tabs of the Cover, Tube and draw out the FFC 
from the hole on the front frame of the printer. (Refer to Figure 4-175.)
5. Release the FFC from the tabs of the Cover, Tube.
(Refer to Figure 4-176.)
Figure 4-174. FFC ReleaseFigure 4-175. Release from Cover, Tube_1
Figure 4-176. Release from Cover, Tube_2
Clamp
Cover, Tube 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 332 6. Remove the five Holder, FFC (Holder, FFC; B).
(Refer to p325 and , p328.)
7. Remove the Carriage Cover.
(Refer to 4.2.4.3 C593_SUB Board (p234).)
8. While releasing the upper tab of the Holeder, FFC, CR ( ), slide the 
Holeder, FFC, CR frontward to remove it ( ). (Refer to Figure 4-177.)
9. Disconnect the Harness, Head, C from the connector on the C593_SUB 
Board. (Refer to Figure 4-177.)
Figure 4-177. Holder, FFC, CR Removal
Figure 4-178. Harness, Head, C Removal
When reassembling the Holder, FFC, CR, match the 
dowels with the positioning holes of the Carriage Unit and 
install the Holder, FFC, CR, then secure it with the tab.
Dowels
Positioning Holes
1
2
Tab
C593_SUB Board 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 333 10. Peel off the three pieces of acetate tape that bundle the FFCs, then 
remove the Harness, Head, C. (Refer to Figure 4-179.)
11. Release the Harness, Head from the Printhead.
(Refer to 4.2.8.1 Printhead (p285).)
12. Draw out the Harness, Heads from the Carriage Unit.
(Refer to Figure 4-180.)
Figure 4-179. FFC Release
Figure 4-180. Harness Head Removal
Acetate Tapes
Carriage Unit 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3344.2.8.12  Harness, Head, Intermit1. Remove the Panel, Front.
(Refer to 4.2.3.5 Panel, Front/Panel Unit (p219).)
2. Disconnect the three Harness, Head, Intermits from the following 
connectors on the C593 MAIN Board.(Refer to 4.2.4.1 C593 MAIN 
Board (p226).)
„CN7: Harness, Head, Intermit
„CN8: Harness, Head, Intermit A
„CN9: Harness, Head, Intermit B
3. Disconnect the three Harness, Head, Intermits from the following 
connectors on the C593_SUB-D Board.(Refer to 4.2.4.6 C593_SUB-D 
Board (p240).)
„CN7: Harness, Head, Intermit
„CN8: Harness, Head, Intermit B
„CN9: Harness, Head, Intermit A
4. Remove the ten clamps shown in Figure 4-181, remove the Ferrite Core, 
and then release the FFC along the left side of the printer.
5. Draw out the FFC from the hole on the left frame.(Refer to Figure 4-182.)Figure 4-181. FFC Release_1
Figure 4-182. FFC Release_2
The Ferrite Core should be attached between the first and 
second clamps from the cutout in the figure below which is 
on the backside of the printer.
Cutout
Clamps
Clamps
Ferrite Core
Step 5 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3354.2.8.13  Tube, Supply, Ink (Y/M/C/MK) on the Left Side of the 
Main Unit1. Remove the I/H Left Unit, and remove the Cover, Holder, IC, Left on the 
backside of the I/H Left Unit.
(Refer to 4.2.8.4 I/H Left Unit / I/H Lever Sensor (Left) (p296).)
2. Loosen the Coupling Screw, M7 that is on the side of theTube, Supply, 
Ink to remove the Tube, Supply, Ink. (Refer to Figure 4-183.)
3. Remove the O-ring, coupling M7 and the Coupling Screw, M7 from the 
Tube, Supply, Ink. (Refer to Figure 4-183.)
Figure 4-183. Coupling Screw, M7 Removal4. Release the Tube, Supply, Ink from both the tabs and tube holder 
sections of the I/H Left Unit. (Refer to Figure 4-184.)
Figure 4-184. Tube, Supply, Ink Release
When performing the following work, remove ink out of ink 
path before removing the Tube, Supply, Ink. Refer to 
Chapter 5 “Adjustment” (p.366) to know how to remove ink.
Some amount of ink remains inside the Tube, Supply, Ink 
even after the ink removal. Prepare pieces of cloth in 
advance and put a sheet of paper on the work area in case 
the ink spatters inside and around the printer. In addition to 
this, keep the removed Tube, Supply, Ink with its head 
coverd with a plastic bag during the work.
Coupling Screws, M7
O-ring, Coupling M7
„The O-ring, Coupling M7 should be attatched 2mm 
away from the end point of the Tube, Supply, Ink.
„To prevent ink leakage and damage on the Coupling 
screw, be sure to tighten the Coupling 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
Approximately 2mm
Tube Holder Sections
Tabs 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 336 5. Loosen the Coupling Screw, M7s that secure the Tube, Supply, Inks to 
the Head Unit to draw out the Coupling Screw, M7s. 
(Refer to Figure 4-185.)
6. Remove the O-ring, Coupling M7s and Coupling Screw, M7s from the 
Tube, Supply, Inks. (Refer to 4.2.8.2 Valve Assy., Head (p291).)
7. Remove the five Holder, FFCs (Holder, FFC; B).
(Refer to p325 and , p328.)
8.Remove C593_SUB Board (p234).
9. Remove the Ink Tube Unit from the Carriage Unit. 
(Refer to 4.2.7.1 Carriage Unit (p266).)
10. Remove the screw that secures both the Holder, Tube, A and Holder, 
Tube, B, and separate the Holder, Tube, A from the Holder, Tube, B.
„C.B.P. 3x8: 1 pc.
Figure 4-185. Coupling Screw, M7 Removal
Figure 4-186. Separation Holder, Tube, A from Holder, Tube, B 
Hitch the two tabs on the Holder, Tube, B to the Holder, 
Tube, A before tightening the screw.
Holder, Tube, B
Tabs
Holder, Tube, A
K
M
Y
CCoupling Screws, M7
Holder, Tube, B
Holder, Tube, A
 C.B.P. 3x8 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 337 11. Release the Tube, Supply, Ink from the tabs of the Holder, Tube, A.
12. Remove the three screws that secures the Cover, Tube to the printer 
frame, lift it upward, release the three upper tabs, and then remove the 
Cover, Tube.
„C.B.P. 3x8: 3 pcs.
Figure 4-187. Tube, Supply, Ink Release
Figure 4-188. Cover, Tube Removal
„Hitch the three tabs on the Cover, Tube to the Guide, 
Tube, CR before tightening the screws.
„Tighten the screws in the order shown in Figure 4-188.
Tabs
1
2
3
Tabs
Cover, Tube
 C.B.P. 3x8 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 338 13. Draw out the Tube, Supply, Ink to remove it from the front side of the 
printer.
Figure 4-189. Tube, Supply, Ink Removal
Tube, Supply, Ink 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3394.2.8.14  Tube, Supply, Ink (LK/LC/LW/LLK) on the Right Side 
of the Main Unit
7
1. Remove the I/H Right Unit, and remove the Cover, Holder, IC, Right on 
the backside of the I/H Right Unit.
(Refer to 4.2.8.5 I/H Right Unit / I/H Lever Sensor (Right) (p305).)
2. Loosen the Coupling Screw, M7s that secure the Tube, Supply, Inks to 
remove the Tube, Supply, Inks. (Refer to Figure 4-190.)
3. Remove the O-ring, Coupling M7s and the Coupling Screw, M7s from 
the Tube, Supply, Inks. (Refer to Figure 4-190.)
Figure 4-190. Coupling Screw, M7 Removal4. Release the Tube, Supply, Ink from both the tabs and tube holder 
sections of the I/H Right Unit. (Refer to Figure 4-191.)
Figure 4-191. Tube, Supply, Ink Release
When performing the following work, remove ink out of the 
ink path befoe removing the Tube, Supply, Ink. Refer to 
Chapter 5 “Adjustment” (p.366) to know how to remove ink.
Some amount of ink remains inside the Tube, Supply, Ink 
even afetr the ink removal. Prepare a cloth in advance and 
put a sheet of paper on the work area in case the ink spatters 
inside and around the printer. In addition to this, keep the 
removed Tube, Supply, Ink with its head coverd with a 
plastic bag during the work.
Coupling Screws, M7
O-ring, Coupling M7
„The O-ring, Coupling M7 should be attatched 2mm 
away from the head of the Tube, Supply, Ink.
„To prevent ink leakage and damage on the Coupling 
screw, be sure to tighten the Coupling 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
Approximately 2mm
Tube Holder Sections
Tabs 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 340 5. Loosen the Coupling Screw, M7s that secure the Tube, Supply, Inks to 
the Head Unit to draw out the Coupling Screw, M7s. 
(Refer to Figure 4-192.)
6. Remove the O-ring, Coupling M7s and Coupling Screw, M7s from the 
Tube, Supply, Inks. (Refer to 4.2.8.2 Valve Assy., Head (p291).)
7. Remove the five Holder, FFCs (Holder, FFC; B). 
(Refer to p325 and , p328.)
8.Remove C593_SUB Board (p234).
9. Remove the Ink Tube Unit from the Carriage Unit. 
(Refer to 4.2.7.1 Carriage Unit (p266).)
10. Remove the screw that secures both the Holder, Tube, A and Holder, 
Tube, B, and separate the Holder, Tube, A from the Holder, Tube, B.
„C.B.P. 3x8: 1 pc.
Figure 4-192. Coupling Screw, M7 Removal
Figure 4-193. Holder, Tube, A and Holder, Tube, B Separation
Hitch the two tabs on the Holder, Tube, B to the Holder, 
Tube, A before tightening the screw.
Holder, Tube, A
Holder, Tube, B
Tabs
LK
LM
LC
LLK
Coupling Screws, M7
 C.B.P. 3x8
Holder, Tube, B
Holder, Tube, A