Epson WF-C5790 Service Manual page 435

EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a
Printhead

Types of Ink Leak Measurement Jig
Part Name Part Code
1684353
LEAK TESTER
SHEET FRONT
1684354
LEAK TESTER
SHEET REAR
90°
In this product, Ink Leak Check is necessary to prevent the ink leakage due to
assembly mistake.
Therefore, make sure to install the ink leak measurement jig when installing the Ink
Tube to Printhead.
Before using the Leak Check Jig, push the ink leak measurement jig along the folds
until the fold angle become 90 degrees.
Disassembly/assembly
Photo Remark
Smoked
Face
10mm
Smoked
Face
15mm
Ink Leak Measurement Jig
90°
Disassembly/Reassembly Procedures
Printhead
Rear side
LEAK TESTER SHEET FRONT
Front side
LEAK TESTER SHEET REAR
1. Set the ink leak measurement jig to the ink tube connector of the Print Head.
2. Set the Ink Supply Tube to the Printhead.
3. After ink charging, follow the instructions on the
the LEAK TESTER SHEET FRONT/REAR, then perform Leak Check
Judgement.
 The smoked face of ink leak measurement jig is put toward the upside.
 When installing the Ink Supply Tube, make sure to tighten the screws using a torque driver
with the specified torque.
Screw tightening torque: 0.33±0.02Nm

Revision A
LEAK TESTER SHEET REAR
The smoked face is
put toward the upside.
LEAK TESTER SHEET FRONT
Ink leak check (p.563) to remove
Confidential
435