Epson 4880 C Service Manual

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 341 11. Release the Tube, Supply, Ink from the tabs of the Holder, Tube, A.
Figure 4-194. Tube, Supply, Ink Release12. 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 4-195. Cover, Tube Removal
Tabs
„Hitch the three tabs on the Cover, Tube to the Guide, 
Tube, CR before tightening with the screws.
„Tighten the screws in the order shown in Figure 4-195.
 C.B.P. 3x8
Cover, Tube
Tabs
1
2
3 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 342 13. Draw out the Tube, Supply, Ink to remove it form the front side of the 
printer.
Figure 4-196. Tube, Supply, Ink Removal
Tube, Supply, Ink 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3434.2.9  Paper Feed Mechanism4.2.9.1  Release Unit1.Remove Cover, Rear (p223).
2. Remove the screw securing Cover, Inner, Release. 
(Refer to Figure 4-197.)
„C.B.S. 3x8: 1 pc.
3. Slide Cover, Inner, Release to right side, free the two ribs and remove it 
upward. (Refer to Figure 4-197.)
4. Remove the two screws securing Plate, P Cover, Right and remove 
Plate, P Cover, Right. (Refer to Figure 4-198.)
„C.B.S. 3x6: 2 pcs.
Figure 4-197. Cover, Inner, Release Removal
Figure 4-198. Plate, P Cover, Right Removal
.
Align Plate, P Cover, Right dowel with main frame 
positioning hole.
Dowel
Positioning Hole
Cover, Inner, Release
Ribs
C.B.S. 3x8
Plate, P Cover, Right
C.B.S. 3x6 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 344 5. Remove the two screws securing Release, Lever Unit.
 (Refer to Figure 4-199.)
„C.B.S. 3x6: 2 pcs.
6. Lift the Release, Lever Unit upward to release the tab, and then remove 
the Release, Lever Unit rearward together with the Spur Gear, 18. 
(Refer to Figure 4-199.)
Figure 4-199. Release, Lever Unit and Spur Gear, 18 Removal
Release, Lever UnitSpur Gear, 18
Tab
Rib
C.B.S. 3x6
Install the Release, Lever Unit and Spur Gear, 18 by 
following the steps below.
1. Seen through the cut-out hole in the Release, Lever 
Unit to align the Spur Gear, 18 positioning rib with the 
Lever, Release, Roller, Driven arrow and then install 
Spur Gear, 18 into Release, Lever Unit.
2. Align Spur Gear, 18 rib edge with Intermittent Gear, 
40 positioning rib and then install Release, Lever Unit 
and Spur Gear, 18 onto the printer body.
3. Secure with screw after aligning Release, Lever Unit by 
tab and rib. (Refer to Figure 4-199.)
Lever, Release, Roller, Driven
Position Locator 
and Positioning Rib
Intermittent Gear, 40 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 345 7. Confirm that gears of Intermittent Gear, 40 and Release, Planetary Unit 
are not engaged. If they are engaged, release engagement by moving 
Release, Planetary Unit. (Refer to Figure 4-200.)
8. Rotate Intermittent Gear, 40 in clockwise direction and look from the 
opposite side of the frame to align the hook and cut-out. 
(Refer to Figure 4-201.)
9. Remove Intermittent Gear, 40 from printer body. (Refer to Figure 4-201.)
Figure 4-200. Intermittent Gear, 40 Removal_1
Figure 4-201. Intermittent Gear, 40 Removal_2	


If Intermittent Gear, 40 is difficult to remove, use tweezers 
or a similar tool to push and remove Intermittent Gear, 40 
by way of the hole on the opposite side of the frame. Be 
careful not to scratch Intermittent Gear, 40.„Install the Intermittent Gear, 40 with its positioning rib 
matched with the Shaft, Release, Roller Driven phase 
position.
„After installing Intermittent Gear, 40 onto Shaft, 
Release, Roller Driven, turn it clockwise so the tab 
faces downward.
Rib
Shaft, Release, Roller Driven
Phase
Tab
Release 
engaged gears
Intermittent Gear, 40
Release, Planetary Unit
Step 8
Step 9
Tab and Cutout 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 346 10. Remove the four screws securing the PT Sensor Unit and remove the 
PT Sensor Unit. (Refer to Figure 4-202.)
„C.B.S. 3x6: 4 pcs.
11. Remove the two screws securing the Guide, Roll Paper and remove the 
Guide, Roll Paper along with Installation Plate, Detector, Rear. (Refer to 
Figure 4-203.)
„C.B.S. 3x6: 4 pcs.Figure 4-202. PT Sensor Unit Removal
Figure 4-203. Guide, Roll Paper and Installation Plate, Detector, Rear 
Removal
When performing the following step, be careful not to pull 
the PT Sensor Unit too much because a harness is 
connected.Align the two dowels of the PT Sensor Unit and the two 
main frame positioning holes. (Refer to Figure 4-202.)

When performing the following step, be careful not to pull 
the Guide, Roll Paper too much because a harness is 
connected.Align the four ribs of the Guide, Roll Paper and the four 
main frame positioning holes. (Refer to Figure 4-203.)
PT Sensor Unit
Dowels and Positioning HolesScrewdriver Insertion Holes
C.B.S. 3x6
C.B.S. 3x6
Rib and 
Positioning Hole
Installation Plate, 
Detector, Rear
Rib and 
Positioning Hole
C.B.S. 3x6
C.B.S. 3x6
Guide, Roll Paper 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 347 12. Remove the two screws securing Release Unit. (Refer to Figure 4-204.)
„C.B.S. 3x6: 2 pcs.
13. Pull right side of Release Unit toward you, completely remove the right 
side of Release Unit while freeing the Release Unit ribs from the printer 
frame cut-out, and then remove the Release Unit from the printer body. 
(Refer to Figure 4-204.)
Figure 4-204. Release Unit Removal
Release Unit
Dowel and Positioning Hole
Dowel and Positioning Hole
Step 13Ribs
C.B.S. 3x6
C.B.S. 3x6
Cutout 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3484.2.9.2  Paper Eject Unit1.Remove Panel, Front/Panel Unit (p219).
2. Turn the Paper Eject Unit until the screws that secure the Paper Eject 
Unit on both sides face forward, and remove the two screws. 
(Refer to Figure 4-205.)
„C.B.S. (P2) 3x6: 2 pcs.
3. Turn the Paper Eject Unit until the Star Wheel faces toward you. 
(Refer to Figure 4-206.)
4. While avoiding interference with the Holder, Eject Roller, Right, pull out 
the Paper Eject Unit toward the front right side from the Holder, Eject 
Roller, Left. (Refer to Figure 4-206.)
Figure 4-205. Screws Securing the Paper Eject Unit
Figure 4-206. Paper Eject Unit Removal
When performing the following steps, be careful not to take 
hold of the Star Wheels of the Paper Eject Unit.Align the Paper Eject Unit dowel and Holder, Eject Roller, 
Left positioning hole. (Refer to Figure 4-205.)
Paper Eject Unit
Dowel and 
Positioning Hole
C.B.S. (P2) 3x6
C.B.S. (P2) 3x6
Holder, Eject Roller, Left
Holder, Eject Roller, Right
Step 3
Step 4 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 3494.2.9.3  Motor Assy., PF1.Remove Cover, Side, Left (p216).
2. Disconnect Motor Assy., PF harness (CN14: black, 2 pin) from C593 
MAIN Board and peel off the acetate tape to release the harnesses. 
(Refer to 4.2.4.1 C593 MAIN Board (p226).)
3. Release Motor Assy., PF harness and other harnesses from the two tabs 
and the three grooves on Paper Guide, Lower. (Refer to Figure 4-207.)
4. Peel off the pieces of acetate tape to release Motor Assy., PF harness 
and then pull it through the hole in the frame. (Refer to Figure 4-208.)
5. Remove the two screws securing the Guide, FFC and then lower the 
Guide, FFC along with all FFCs. 
(Refer to Figure 4-209.)
„C.B.S. 3x6: 1 pc.
„C.B. 3x4: 1 pcs.
Figure 4-207. Releasing the Harness_1Figure 4-208. Releasing the Harness_2
Figure 4-209. Releasing Guide, FFC
Align the dowel of the frame with Guide, FFC positioning 
hole. (Refer to Figure 4-209.)
Harness
Tabs
Paper Guide, Lower
Channels
Acetate Tape (x3)
Motor Assy., PF
Guide, FFC
FFC
C.B. 3x4
Dowels and Positioning Holes
C.B.S 3x6 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 350 6. Release Motor Assy., PF harness from clamp shown in Figure 4-210. 
(Refer to Figure 4-210.)
7. Release Extension Spring, 13.05 from Plate, Motor, PF hook and frame 
hook. (Refer to Figure 4-210.)
8. Loosen the screw securing Plate, Motor, PF and release tension of Belt, 
Motor, PF. (Refer to Figure 4-210.)
„C.B.S. (P2) 3x6: 1 pc.
9. Remove the two screws securing the Motor Assy., PF. 
(Refer to Figure 4-211.)
„C.C. 3x6: 2 pcs.
10. Remove timing belt from pinion gear, pull pinion gear out through hole of 
frame and then remove Motor Assy., PF. (Refer to Figure 4-211.)Figure 4-210. Releasing Tension of Belt, Motor, PF
Figure 4-211. Motor Assy., PF Removal
When performing the following steps, pay attention to the 
followings:
„Be careful not to scratch the pinion gear of the Motor 
Assy., PF
„Be careful not to deform or damage the Scale, PF 
attached to the Pulley, Roller, PF.





Be sure to refer to Chapter 5 “Adjustment” (p.366) and 
perform specified adjustments after installing or replacing 
the Motor Assy., PF.
Hooks
Clamp
 C.B.S. (P2) 3x6
Extension Spring, 13.05
Belt, Motor, PF
Scale, PF
Motor Assy., PF
C.C. 3x6
Pinion Gear