Ep-Rom Replacement - Epson LQ-670 Service Manual

Chapter 3 Disassembly and Assembly

3.2.5 EP-ROM Replacement

When the program ROM (EP-ROM) on C214 MAIN board need to be replaced (for program
version-up), follow the instruction below.
1. Remove two screws (CBB/M4x14) fixing [COVER, WIRE] and remove it.
2. Remove the EP-ROM from the IC socket IC8 on C214 MAIN board.
CHECK POINT
When you remove or re-install the EP-ROM, be careful not to damage the lead
terminals of the IC.
Figure 3-6. EP-ROM Removal
3-9
Rev. A