Epson Stylus Pro 7500, Service Manual

Page: 160 / 274

EPSON Stylus Pro 7500 Revision A
Disassembly & Assembly Disassembly Flow 160
44. Disconnect the ink tube from the damper holder mount, then remove the damper
holder.
45. Remove the 6pcs of the Damprer Assy. from the heads. When removing the dampers,
set the blade of a flat-bladed screwdriver under the dampers, then while supporting the
damper with your index finger, carefully pull out the damper push with the blade end
of the screwdriver so that it is pushed up.
46.
Figure 4-130. Removing Damper Assy.
47. After taking out the dampers, wrap them with pieces or cloth or with soft paper to keep
the ink from leaking out.
48. Carefully loosen all the hex nuts connecting the dampers and the in supply tubes.
49. Remove the O-rings between the dampers and the hex nuts.
50. Confirm that the ink supply tubes have been passed through the hex nuts, then install
new O-rings from the conversion kit on the front ends of the ink supply tubes.
C A U T I O N
The damper film should not be pushed. If pressure is applied to the
film, the ink inside the damper will be discharged forcefully from the
damper’s connection fitting.
C H E C K
P O I N T
When installing the O-rings on the front ends of the ink supply tubes,
the following procedure should be used.
1) Fit a finger sock on your index finger. (If you are already wearing
plastic gloves, the tip of the index finger portion of the glove should be
cleaned thoroughly.
2) Set the O-ring on the index finger, then apply some of the S46
transport liquid remaining on the damper or the ink supply tube to
the O-ring.
3) Fit the O-ring securely on the front end of the ink supply tube.
Figure 4-131. Installing O-rings.
NOTE: If the S46 transport liquid is not applied to the O-ring, it
will be easy for the O-ring to become twisted, and that
could cause ink to leak and air bubbles to get mixed into
the ink.
C A U T I O N The O-rings should never be fitted on the ink supply tubes with bare
hands. Doing so will cause the O-rings to deteriorate, which will result
in ink leaking and air bubbles getting mixed into the ink.