Epson GQ-3500 User Manual page 57

The drum cartridge consists of two separate parts, the collector unit and
the drum. The collector unit by itself needs to be replaced about every
10,000 pages. The drum needs to be replaced about every 20,000 pages.
Therefore, every other time you replace the collector unit, you also
replace the drum. In the latter case, this means you replace the
complete drum cartridge.
The collector unit by itself and the drum cartridge unit are both
available from your Epson dealer. The drum itself is not sold as a
separate part, but only as a part of the drum cartridge unit.
The lens shield also needs to be replaced about every 10,000 pages,
which means that whenever you replace either the collector unit or the
drum cartridge, you also replace the lens shield.
When the collector unit requires replacement, the status display shows
USER MAINTENANCE
stops after the page being printed. To replace the collector unit and
lens shield, follow these steps:
WARNING
This procedure will expose the drum. Because the drum is light-
sensitive, it should not be exposed to lighting brighter than normal
room light. Room light exposure should not exceed five minutes.
(Completing this procedure in less than five minutes should be no
problem.) Also, be careful not to touch the drum surface.
1. Open the printer using the latch on the front of the printer.
WARNING
Opening the printer exposes the fusing unit, which is marked by a
CAUTION: HOT SURFACE
Pinch open the green lock levers that hold the collector unit in
2.
place on top of the drum. While holding these levers open, lift the
collector unit by its green handles. In this manner, you can lift the
unit off the drum, leaving the drum in place. (See Figure 5-8.)
Note
If YOU remove and reinsert the collector unit, you must press the
reset lever. (See Step
Maintenance and Status Messages
indicator lights. Printer operation
label. Be careful not to touch the fusing unit.
5.)
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