Service Maintenance - Epson GQ-3500 User Manual

7. Now change the lens shield. First, pull the shield out from below
the latch on the front of the printer. Next, make sure that both
sides of the new lens shield are clean and free of scratches. (Hold
onto the green tab so the tab curves down; avoid touching the lens
itself.) Slide the end of the lens opposite the green tab into the
printer. (See Figure 5-10 on page 5-13.)
8. Close the printer.

Service Maintenance

It may sometimes be necessary to call for a service technician to
repair a problem with
self-diagnostic capabilities, it will indicate
there is a serious problem, the
a message is displayed in the status indicator.
In case of an error with the engine driver CPU, the main motor, the
optical unit, or the fusing unit, the status indicator displays ED
alternating with a two-digit error code number.
If this happens, write down the error code number, turn off the power,
and contact a qualified service representative.
1: printer controller error
E
If GQ-3500 detects an error in its controller unit or its system
the
memory, the status indicator displays F I alternating with a two-digit
error code number.
Unlike an LO error, this type may correct itself if you reset the printer.
Turn the printer off for a few seconds, then turn it back on. If the error
condition still exists, write down the error code,
contact a qualified service representative.
If error code Cd alternates with E 1, this indicates an IC card
installation error. Turn off the power and properly install
If the error recurs, contact
Maintenance and Status Messages
GQ-3500. Because the printer has built-in
the
SERVICE REQUIRED
qualified service representative.
a
is necessary. If
when this
light flashes and
off the power, and
turn
the
IC card.
5-15