Circuit Board Removal; C593 Main Board; Screws Securing The Cover, Harness; Cover, Harness Removal - Epson Stylus Pro 4400 Service Manual

EPSON Stylus Pro 4400/4450/4800/4880/4880C

4.2.4 Circuit Board Removal

The board used for Stylus 4400/4800 is "C593 MAIN Board",
C H E C K
and "CA00 MAIN Board" is used for Stylus Pro 4450/4880/
P O I N T
4880C. The explanation in this section is based on Stylus
Pro 4400/4800.
This section describes steps for removing "C593 MAIN Board", "Power Supply
Board", and each "C593_SUB Board".

4.2.4.1 C593 MAIN Board

Be sure to insert and unplug FFCs vertically. (Inserting/
C A U T I O N
Unplugging at an angle can damage shorten or disrupt the
terminals inside the connector and cause damage to circuit
board components.)
1. Remove "Holder, Roller, Unit" (p214).
2. Remove "Paper Guide Assy., M, SP" (p215).
3. Remove the two screws securing "Cover, Harness".
C.B.S. 3x8: 2 pcs.
4. Slide "Cover, Harness" outward.
Insert "Cover, Harness" into the two ribs of "Paper Guide,
Lower".
5. Release all harnesses through the "Cover, Harness" notch and remove the
"Cover, Harness". (Refer to Figure 4-31.)
Do not allow any harness to jut out from under the "Cover,
Harness".
Disassembly & Assembly
(Refer to Figure 4-30.)
(Refer to Figure 4-30.)
Disassembly Procedures
Ribs
C.B.S. 3x8
Figure 4-30. Screws Securing the Cover, Harness
Notch
Figure 4-31. Cover, Harness Removal
Revision C
Cover, Harness
226