Epson Stylus Pro 4450 - Page 304

EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Disassembly & Assembly Disassembly Procedures 304
20. Loosen the four "Coupling Screw, M7" securing the four "Tube, Supply,
Ink"s and then disconnect "Tube, Supply, Ink" from "I/H Left Unit".
Figure 4-135. I/H Left Unit Removal
C A U T I O N
When performing the following steps, be careful of the
points below.
 As ink may leak or splatter, have cleaning rags ready
and prevent ink from getting on the surrounding work
area.
 Prevent dust and dirt from getting inside the "Tube,
Supply, Ink".
C H E C K
P O I N T
The 4-color model (Stylus Pro 4400) is not equipped with "I/H
Right Unit", so all the eight "Tube, Supply, Ink"s are
connected to "I/H Left Unit".
Refer to "4.2.11.1 I/H Left Unit / I/H Lever Sensor (Left) (4-
color model) (p362)", when disassembling the 4-color model
(Stylus Pro 4400).
 Confirm that "O-Ring, Coupling M7" has been installed.
 The "Tube, Supply, Ink" has been marked with its color.
Install while confirming that the mark matches the
receptacle.
 Use the following order to install the "Tube, Supply, Ink"
while routing it to the installation location.
M →C → MK → Y
 Refer to Figure 4-135 and properly route "Tube, Supply,
Ink".
 Firmly insert "Tube, Supply, Ink" into receptacles and
tighten "Coupling Screw, M7".
O-Ring, Coupling M7
 To prevent from both ink leak and damage on the joint
screw, be sure to tighten the "Coupring Screw, M7" with
the prescribed torque and the tool specified below.
• Tool: Torque Wrench 1.25/1.75 (1277142)
• Tightning torque: 1.25 ( ± 0.25) kgf • cm
Locations where ink tubes are routed
Coupling Screw, M7
Tube, Supply, Ink