Epson 4880 C Service Manual

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2814.2.7.9  Scale, CR1.Remove Cover, Side, Left (p216).
2.Remove Cover, Side, Right (p217).
3. Move the Carriage Unit to the center of the printer. 
(Refer to 4.2.4.3 C593_SUB Board (p234).)
4. At the left side of the printer, remove the Tension Spring, 3.86 hitched to 
the tab on the printer frame and the Scale, CR. 
5. At the right side of the printer, remove the Scale, CR from the tab on the 
printer frame.
Figure 4-100. Scale, CR Removal
A damage to the detection pattern on the surface of the 
Scale, CR may cause malfunction of the CR encorder. Take 
care not to touch the surface of the Scale, CR with bare 
hands or contaminate it with ink or contact it to the frame, 
when handling the Scale, CR.
Left side of the printer
Scale, CR
Extension Spring, 3.86
Right side of the printer
Scale, CR
Tab 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2824.2.7.10  Pulley, Driven/Shaft, Pulley1.Remove Cover, Side, Left (p216).
2. Remove the E-ring that secures the Shaft, Pulley on the left back of the 
printer, and then remove the plain washer. (Refer to Figure 4-101.)
3. While pressing the Lever, Rock, PG, loosen the CR tension attachment 
screw until its tip gets behind the Pulley, Tension, CR. 
(Refer to Figure 4-102.)
Figure 4-101. E-ring and Plain Washer Removal
Figure 4-102. Loosening CR Tension
E-ring
Plain washer
Lever, Rock, PG
Attachment Screw
Pulley, Tension, CR 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 283 4. Pull the Holder, Pulley toward you, and then remove the Shaft, Pulley 
upward from the front and rear grooves on the Holder, Pulley together 
with the Belt, CR and the Pulley, Driven. (Refer to Figure 4-103.)
5. Remove the Belt, CR from the Pulley, Driven.
6. Draw out the Shaft, Pulley from the Pulley, Driven to remove the two 
polysliders. (Refer to Figure 4-104.)
7. Remove the ball bearings from the Pulley, Driven. 
(Refer to Figure 4-104.)
Figure 4-103. Shaft, Pulley Removal
Figure 4-104. Pulley, Driven and Shaft, Pulley Removal
Install the Pulley, Driven and Shaft, Pulley with the 
grooved end of the Shaft, Pulley facing the rear of the 
printer.
Belt, CR
1
2Assemble
Groove
Pulley, DrivenShaft, Pulley
Holder, Pulley
Polyslider
Ball bearing
Pulley, Driven
Ball bearing
Polyslider
Shaft, Pulley 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2844.2.7.11  Solenoid, CR1.Remove Carriage Unit (p266).
2. Attach the CUTTER CAP to the cutter section of the Carriage Unit.
(Refer to Figure 4-110.)
3. Release the harnesses of the Solenoid, CR from the tabs of the Carriage 
Unit. (Refer to Figure 4-105.)
4. Remove the screw and the plain washer that secure the Solenoid, CR, 
and then remove the Solenoid, CR from the Carriage Unit.
„C.B.P.(P2) 3x8 (+ plain washer 4.3x0.8x8): 1 pc.
Figure 4-105. Solenoid, CR Removal
	


The Cutter Cover, which covers the cutter blade projecting 
upward from the bottom of the Carriage, prevents injury 
during the work.Route the harnesses of the Solenoid, CR on the Carriage 
Unit properly as shown in Figure 4-105.





Be sure to refer to Chapter 5 “Adjustment” (p.366) and 
perform specified adjustments after replacing the Solenoid, 
CR.
C.B.P.(P2) 3x8 
+washer 4.3x0.8.8
Tab
Tabs
CUTTER CAP
Solenoid, CR 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 2854.2.8  Ink System4.2.8.1  Printhead
	


„Figures below shows the required tools in replacing the 
Printhead.
CUTTER CAP 
(1401456)
HEAD EXCHANGE SUPPORT TOOL
(1294672)
HEAD EXCHANGE SUPPORT 
TOOL (Adjust Plate)
(1294672)
CR SUS PLATE SUPPORT TOOL
(1400023)
	


„Be sure to install the Adjust Plate to the rear of the 
HEAD EXCHANGE SUPPORT TOOL before removing 
the Printhead. 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 286 1.Remove Scale, CR (p281).
2. Move the Carriage Unit to match the sensor section on the rear of the 
Carridge Unit with the cutout of the Cover, Rear.
(Refer to Figure 4-106.)
3. Place the CR SUS PLATE SUPPORT TOOL on both sides of the 
Carriage Unit as shown in Figure 4-82. (Refer to Figure 4-106.)
For the setting of the CR SUS PLATE SUPPORT TOOL, refer to Figure 
4-82 in  4.2.7.1 Carriage Unit (p266) .
4. Release the tension of the Belt, CR to remove the Belt, CR from the 
pinion gear of the Motor Assy., CR. 
(Refer to 4.2.7.2 Motor Assy., CR (p270).) (Refer to Figure 4-107.)
Figure 4-106. CR SUS PLATE SUPPORT TOOL Set Position
Figure 4-107. Belt, CR Removal
CR SUS PLATE SUPPORT TOOLBelt, CR
Pinion Gear 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 287 5. Remove the Carriage Unit following the order below. 
(Refer to Figure 4-108.)
5-1. Pull the Carriage Unit toward you and press it against the Shaft, 
Front ( ) to make the bearings that are attached on the rear of 
the Carrigage Unit apart from the Shaft, Rear.
5-2. Lift the rear of the Carriage Unit upward to release it from the 
Shaft, Front ( ),  lift the front of the Carriage Unit so that it is 
released from the Shaft, Front, and then remove the Carriage 
Unit.
6. Temporarily place the Carriage Unit that is removed in Step 5 on both the 
Shaft, Front and the Shaft, Rear. (Refer to Figure 4-109.)
7. Set the HEAD EXCHANGE SUPPORT TOOL on the printer at the 
position as shown in Figure 4-109. 
Set the HEAD EXCHANGE SUPPORT TOOL with its front holes 
macthing with the screw positions of the printer. (Refer to Figure 4-109.)Figure 4-108. Carriage Unit Removal
Figure 4-109. HEAD EXCHANGE SUPPORT TOOL Setting
Be careful not to drop the Carriage Unit because it is hold 
in a temporarily unstable state.
Be careful not to make contact
1
2
Cover, Rear
Carriage Unit
HEAD EXCHANGE SUPPORT TOOL
Match the holes of the tool with the 
screw positions of the printer 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 288 8. Set the Carriage Unit on the HEAD EXCHANGE SUPPORT TOOL. 
(Refer to Figure 4-110.)
9. Attach the CUTTER CAP to the cutter section of the Carriage Unit.
(Refer to Figure 4-110.)
10. Remove the three screws that secure the Carriage, C from the bottom of 
the Carriage Unit.(Refer to Figure 4-110.)
„C.C.P. 2.6 x 8: 3 pcs.
Figure 4-110. Carriage Unit Setting / Screws Securing Carriage, C
	


„When setting the Carriage Unit on the HEAD 
EXCHANGE SUPPORT TOOL, take care not to bend the 
Tube, Supply, Ink. If it get bend, replace with a new 
one.
„Make sure the Carriage Unit is installed to the HEAD 
EXCHANGE SUPPORT TOOL securely.
Make sure that the Carriage Unit is completely set into 
the position with its bottom is parallel to the tool as seen 
from the side of the Carriage Unit.
	


The CUTTER CAP, which covers the cutter blade projecting 
upward from the bottom of the Carriage, prevents injury 
during the work.
Check Point
CUTTER CAP C.P.P. 2.6x8
Carriage, C
HEAD EXCHANGE 
SUPPORT TOOL 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 289 11. Slowly draw the Carriage, C to the directions shown in Figure 4-111 to 
separate it from the Carriage, B. (Refer to Figure 4-112.)
Figure 4-111. Carriage, C Removal
Figure 4-112. Separation from Carriage, B
When performing the following work, do not keep the 
Carriage, C too far because harnesses are connected to 
the Carriage, C.Make sure that the mounting plate of the Carriage Unit is in 
contact with the one of the Carriage, C after installing the 
Carriage, C.
Carriage, C
Carriage, B
Carriage, C
Printhead
Headrank ID Label 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CDisassembly & Assembly Disassembly Procedures 290 12. Remove the three screws that secure the Printhead, and then remove the 
Printhead from the Carriage, C. (Refer to Figure 4-113.)
„C.P.P. 2.6x8: 3 pcs.
13. Disconnect the two harness, Heads from the Printhead, and then 
remove the Printhead. (Refer to Figure 4-114.)Figure 4-113. Printhead Removal
Figure 4-114. Harness, Head Removal
If the Absorber, CR comes off when removing the 
Printhead form the Carriage, C, reattach the Absorber, 
CR to the Carriage, C as shown in the figure bilow.Harness, Head  should be connected with its circle-marked 
surface facing downward (the nozzle surface).
Upper side: 2 circles
Lower side: 1 circle





Be sure to refer to Chapter 5 “Adjustment” (p.366) and 
perform specified adjustments after replacing or removing 
the Printhead. When replacing the Printhead with a new 
one, be sure to write down the Head Rank ID of the new one 
(21 characters in all) which is discribed on the ID Label.
(Refer to Figure 4-112.)
Absorber, CR
 C.P.P. 
2.6x8
Carriage, C
CAUTION:
 Head, Harness
Harness, Head
Print Head
Circle Mark