Epson Scan 2500 service manual Disassembling the Printer Mechanism, Removing the Printhead Unit

EPSON Stylus Scan 2500

Revision A

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

C A U

T

Since the ink cartridge once taken out can not be 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 pack the printer for transportation with a new ink cartridge installed and the carriage in the home position when the printer is turned on.

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
C H E C K
	carriage correctly. (There are 2 pins to determine the
P O I N T
T	location.)

When you install the printhead to the carriage, make sure that the location pin on the carriage side is placed in the notch of the printhead.

A D J U R E Q U

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)

Disassembly & Assembly Disassembling the Printer Mechanism 96