Epson Stylus 1500 - Main Controller (C172 MAIN Board) Removal

Main Controller (C172 MAIN Board) Removal
1. Remove the upper housing. (See page 3-7.)
2. Remove the printer mechanism. (See page 3-9.)
3. Remove the cables from connectors CN4 and CN16 between the power supply unit and the
C172 MAIN board and the cable from control panel connector CN3.
4.
Remove 2 (CBS 3 × 12) screws securing the upper connector cover and the Type B interface
shield cover to the lower housing. Then remove the upper connector cover.
5.
Remove 7 (CBP 3 × 12) screws and 2 (CBS 3 × 6) screws securing the C172 MAIN board to the
lower housing. Then remove the controller board along with the shield cover.
6.
Remove 2 (CP 3 × 6) screws securing the shield cover to the C172 MAIN board, and remove
the shield cover.
REQUIRED ADJUSTMENTS
❏ When you replace the main board, initialize EEPROM contents as follows:
1. Reassemble the printer.
2. Turn the printer on while holding down the Alt, LF/FF, Economy / Condensed, and
Pause buttons on the control panel.
❏ When the EEPROM is initialized, some default settings (for example, the Bi-D setting,
head gap / angle / black-color head gap, head drive voltage settings, etc.) are lost. So,
you need to adjust the printer. (See Chapter 4.)
❏ When the EEPROM is initialized, the protect counter is also reset; so you need to replace
the ink drain pad. (See pages 2-29 and 3-20.)
CAUTION
❒ The C172 MAIN board shield plate has sharp edges, so take care handling it.
❒ Take care handling the lithium battery, as described on page 3-3.
❒ Replace the control panel harness, and then remove the main controller .
Disassembly and Assembly
3-10 EPSON Stylus 1500 Service Manual