Cleaning; Cleaning The Cr Unit - Epson WF-7620 Series Service Manual

Epson WF-7620/7610/7110 series

4.1 Cleaning

4.1.1 Cleaning the CR Unit

In this product, ink may be attached on the CR Unit by structure of Printhead and CR Unit.
So, head short circuit may arise due to ink attachment on the terminal of the head FFC when replacing the
printhead.
This cleaning should be carried out only when replacing the printhead.
When installing the Printhead, make sure the Head FFC is not contaminated with ink
beforehand.
Tool
Cotton swab or soft dry dust-free cloth
Cleaning procedure
1. After pulling out the head FFC while holding the printhead from the carriage, confirm the ink attachment on
the CR Unit.
2. If ink attached on the CR Unit, wipe it off with a cotton swab (or a soft dry dust-free cloth).
Maintenance Cleaning
Revision B
76
Confidential