EPSON Stylus COLOR 440, 640, and 740 Chapter 4 Disassembly and Assembly
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4.2.4.3 Removing the Pump and Capping Assemblies
1. Remove the housin
.
Refer to Section 4.2.1.
2. Remove the control panel.
Refer to Section 4.2.3.
3. Remove the waste ink pad assembl
.
Refer to Section 4.2.4.2.
4. Remove the 2 screws located on the ri
ht-front ed
e of the paper
e
ect frame. See Fi
ure 4-9. Then loosen the screw located on the
left-front ed
e of the paper e
ect frame. This loosens the front frame
and facilitates access to the parts underneath.
5. To remove the cappin
mechanism, release the hooks that secure
the it to the ri
ht side of the frame. See Fi
ure 4-9. Lift up the
cappin
mechanism b
its ri
ht end to free the hooks on its left end.
Then remove it b
lowerin
it out the bottom of the printer. Note that
the cappin
mechanism is still connected to the pump assembl
b
the ink drain tube.
6. Tilt the printer back so that
ou can see the bottom of the printer
mechanism. See Fi
ure 4-9.
7. To remove the pump assembl
, take out the 2 screws
No.5
securin
the pump assembl
to the frame. See Fi
ure 4-9.
8. Release the hook securin
the pump assembl
to the frame and
remove the pump assembl
. See Fi
ure 4-9.
CAUTION
The head cleaning blade must be fully retracted when
the pump is removed. Otherwise, a spring in the
pump assembly will cause parts to fly out when you
remove the assembly.
Do not damage the black rubber seal around the edge
of the ink cap. If it gets damaged, the printhead
cannot be cleaned properly and will malfunction.
When handling the head cleaning blade, observe the
following points:
Do not touch the blade with
our bare hands. Use
loves or tweezers.
Do not let oil or
rease come in contact with the blade.
When installin
the cleanin
blade, the rubber half
must face the ri
ht side of the printer, and the felt half
must face the left.
Do not over-tighten the two screws securing the
pump assembly to the frame.
Be careful not to crush or crimp the ink drain tube
connecting the pump and capping assemblies.
CHECK
POINT
Fi
ure 4-10
shows how to reassemble the pump
components.
After installing the pump assembly, make sure that the
head cleaner blade moves back and forth by rotating
gear 67.2.