Replacing The Head Supply Assy - Epson Artisan 810 Service Manual

Epson Artisan 810/835/837/710/725/730/Epson Stylus Photo PX810FW/TX810FW/PX820FWD/TX820FWD/PX830FWD/PX710W/TX710W/PX720WD/TX720WD/PX730WD/TX730WD

4.2.2 Replacing the Head Supply Assy

Head Supply Assy
When replacing the Printhead and Ink Supply IC Holder Assy individually for
repairing of print defect, the Leak check using the specified tools is necessary in order
to avoid ink leakage after reassembling.
The Leak check is not necessary for the Head Supply Assy because it is specified as
ASP parts including the Printhead and the Ink Supply IC Holder Assy, and the Leak
check has already been carried out.
The Head Supply Assy is supplied as ASP parts for the servicing site where the
specified tool cannot be prepared, or to shorten the repair time.
This section describes the procedure of replacing the Head Supply Assy.
Printhead
Head Supply Assy
Figure 4-1. Head Supply Assy
DISASSEMBLY/ASSEMBLY
Ink Supply IC
Holder Assy
Disassembly Procedures
Parts/Components need to be removed in advance:
/
ADF Unit (p110) Scanner Unit (p111)/Paper Guide Top Assy (p123)/Upper Left Housing /
Panel Lock Button (p114)/Hinge (p113)/Upper Housing (p115)/Rear Right FAX Housing
(p120)/Right Housing / Card Cover (p121)/Wireless LAN Board (p131)/Main Board /
Grounding Plate M/B (p126)CSIC Assy (p143)
Replacement procedure
1. Carry out Step1 (p134) to Step5 (p134)
2. Carry out Step1 (p144) to Step5 (p145)
(p144) ".
3. Remove the Printhead together with the Ink Supply IC Holder Assy. (See
4-2.)
4. Install the Ink Supply IC Holder Assy
Step3 (p136) and tighten the screws given in
Printhead (p135) to install the Head Supply Assy.
Figure 4-2. After Removing the Head Supply Assy
After removing/replacing the Head Supply Assy, make the specified
A D J U S T M E N T
R E Q U I R E D
adjustments. (See Chapter 5
Revision G
in " 4.2.5.1 Printhead (p133) ".
in " 4.2.5.6 Ink Supply IC Holder Assy
(p144), and carry out Step1 (p136)
Step11 (p139) in Assembling the
"ADJUSTMENT".)
Confidential
Fig.
to
109