Carriage (Cr) Unit Removal - Epson Stylus Color 1520 Service Manual

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EPSON Stylus 1520

3.2.10.9 Carriage (CR) Unit Removal

1. Remove the printer mechanism unit. (Refer to Section 3.2.6.)
2. Remove the extension spring to release the timing belt. (Refer to the step 2 in Section 3.2.10.1.)
3. Disengage the timing belt from the pulley and sub pulley in the CR motor assembly.
4. Remove 2 E-rings and 2 plain washers from both edges of the CR guide shaft.
5. If the printhead cleaner lever in the pump unit is locking the CR unit, push the lever down manually to
release the CR unit.
6. Remove 1 screw securing the printhead FFCs and FFC holders to the base frame assembly. Then
remove the printhead FFC and FFC holder from the printer mechanism unit.
7. Turn the parallelism adjustment bushings joining the CR guide shaft to the right and left frame assemblies
until they fit into the cutouts on the frames. Then remove the CR unit along with the CR guide shaft.
8. Remove the CR guide shaft from the CR unit.
Parallelism Adjustment Bushing
E-ring
Plain Washer
Screws Fixing the CR
;
After removing the CR unit, do not touch the printheads and damage them with static electricity. The
printhead drive circuit is directly attached to the printhead board, which contains driver chips that can
be easily damaged by static electricity.
;
Pay attention to the oil pad when removing the CR guide shaft from the CR unit. It tends to become
dislocated easily.
;
When installing the CR guide shaft to the printer mechanism unit, fit the platen gap adjust lever to the
right frame assembly. (Refer to the figure below.)
3-24
CR Guide Shaft
Printhead FFC
Printer Mechanism Unit
Screw Securing the Printhead FFCs and FFC Holder
Figure 3-22. CR Unit Removal
WORK POINT
REQUIRED ADJUSTMENT
PG Adjust Lever
CR Unit
Plain Washer
Parallelism Adjustment Bushing
E-ring