Removing The Pump And Capping Assemblies - Epson Stylus COLOR 440 Service Manual

EPSON Stylus COLOR 440, 640, and 740

4.2.4.3 Removing the Pump and Capping Assemblies

1. Remove the housing. (Refer to
2. Remove the control panel. (Refer to
3. Remove the waste ink pad assembly. (Refer to
4. Remove the 2 screws located on the right-front edge of the paper
eject frame. See Figure 4-9. Then loosen the screw located on the
left-front edge of the paper eject frame. This loosens the front frame
and facilitates access to the parts underneath.
5. To remove the capping mechanism, release the hooks that secure
the it to the right side of the frame. See
capping mechanism by its right end to free the hooks on its left end.
Then remove it by lowering it out the bottom of the printer. Note that
the capping mechanism is still connected to the pump assembly by
the ink drain tube.
6. Tilt the printer back so that you can see the bottom of the printer
mechanism. See Figure 4-9.
7. To remove the pump assembly, take out the 2 screws (No.5)
securing the pump assembly to the frame. See
8. Release the hook securing the pump assembly to the frame and
remove the pump assembly. See
Section 4.2.1.)
Section 4.2.3.)
Section 4.2.4.2.)
Figure 4-9. Lift up the
Figure 4-9.
Figure 4-9.
Chapter 4 Disassembly and Assembly


The head cleaning blade must be fully retracted when
C A U T I O N
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 your bare hands. Use
gloves or tweezers.

Do not let oil or grease come in contact with the blade.

When installing the cleaning blade, the rubber half
must face the right 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.


shows how to reassemble the pump
Figure 4-10
C H E C K
P O I N T
components.


After installing the pump assembly, make sure that the
head cleaner blade moves back and forth by rotating
gear 67.2.
99