Epson Stylus C40UX Service Manual page 37

Stylus C40UX/C40SX/C20UX/C20SX
2.1.6.2.2 Non porous pad in cap
Due to this, the cap is newly designed as follows.
Stylus C40/C20
seal rubber
ink eject hole
Figure 2-18. non porous pad in cap (Stylus C40/C20)
The cap unit used for the previous models has the porous pad to keep the moisture in
the cap and prevent that the air bubble occurs in CL sequence.
To get the same effects on new cap unit without the porous pad.
For keep the moisture in the cap
The diameter of the ink eject hole is smaller than that of Stylus COLOR 480
For prevent that the air bubble occurs in CL sequence
The cap is modified so that ink flows to ink eject hole with air bubble in CL
sequence.
Operating Principles
Stylus COLOR 480
porous pad
Overview
Revision B
37