Disassembling The Printer Mechanism; Removing The Printhead Unit - Epson STYLUS Scan 2500 Service Manual

EPSON Stylus Scan 2500

4.6 Disassembling the Printer Mechanism

This section explains procedures for disassembling the major parts or units of
the printer mechanism.

4.6.1 Removing the Printhead Unit

1. Remove the upper cover as described in Section 4.3.
2. Remove the upper frame as described in "Removing the scanner support
frame" on pag e84.
3. Rotate the flat gear 73.6 towards yourself (front) to release the carriage
lock mechanism. Then move the carriage to the left edge.
4. Fully open the blue plastic cover for the black ink cartridge and squeeze
the bottom of the cover to release it from the ink cartridge holder. Turn it
slightly so the knob at the end of the cover releases from the carriage.
5. Move the carriage to the HP and repeat for the color ink cartridge cover.
6. Remove the carriage FFC and FFC guide as shown in Figure 4-3 on the
next page.
7. Remove the tension spring 49.
8. Remove one screw (CBP 3x6) and twist the fastener to pull it out the hole
on the right side.
9. Remove the printhead from the carriage.
See the following pages for the figures below:
Figure 4-3, "Removing the Print Head"
Figure 4-4, "Installing the Printhead"
Make sure that the earth board is installed to the
T
carriage correctly. (There are 2 pins to determine the
location.)
When you install the printhead to the carriage, make
T
sure that the location pin on the carriage side is
placed in the notch of the printhead.
Disassembly & Assembly Disassembling the Printer Mechanism
Since the ink cartridge once taken out can not be
T
used again, be sure to install a new ink cartridge
when you return the printer to the user.
When you return the printer to the user, be sure to
T
pack the printer for transportation with a new ink
cartridge installed and the carriage in the home
position when the printer is turned on.
When you replace the printhead unit, perform the
following adjustments (Refer to Chapter 5 for more
details.):
1. Initial ink charge (Refer to Chapter 5/Section 5.2.2.3)
2. Head Voltage ID Input (Refer to Chapter 5/Section
5.2.2.7.)
3. Head Angular Adjustment (Refer to Chapter 5/
Section 5.2.2.8.)
4. Bi-D Adjustment (Chapter 5 /Section 5.2.2.9)
Revision A
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