The Memory Chip Set; Removing The Controller Board - Epson EPL-7000 User Manual

The Memory Chip Set

The memory chip set contains four 256 Kbyte chips that can be
installed on the printer's controller board. Each memory chip set
increases the memory available to your printer by 0.5 MB
increments.
The memory chip set is available from your dealer or from Epson
Accessories at 1-800-873-7766.
If you wish, you can simply buy four 256K X 480 ns DRAM
(20-pin DIP) chips and install
this section.

Removing the controller board

To remove the controller board you need a cross-head screwdriver,
WARNING:
when the power is on. Do not attempt to remove the
controller board unless the printer is turned off and the
power cord is unplugged. Also, try not to touch any
contacts on the circuit board of the printer because many
of the components can be destroyed by the static
electricity in your body.
1. Unplug the power cable from
disconnect it from
2. Disconnect all interface cables from the rear of printer.
A-32 Appendix A
according to the instructions in
them
High voltages are present inside the printer
the
rear of the printer.
the
electrical outlet and