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  DC250 & WC-7655 styles: DocuColor 240,242,250,252,260 WorkCentre 7655,7665,7675, and the newest models: WorkCentre 7755,7765,7775  Drum
Cartridges: These models
use one Black Drum Cartridge (13R602) & 3 Color Drum Cartridges
(13R603). The Color Drum Cartridges have a considerably lower
yield and come at a higher cost, so they have become the more
important cartridges to maximize the yields on. You can reset the
Drum Counters by replacing the Drum Reset CRUM chips (Customer
Replaceable Unit Monitors). Reports from the field show that often
the next thing which goes is the charge roller. It tends to gather
impacted toner on its surface. If you remove the charge roller and
clean its surface gently with soap and water, it will help you get
the most out of it. The best and most cost effective move is to
replace the CRUM and the charge roller (a new aftermarket product
was introduced recently which is performing well). The drum
cleaning blades for the color cartridges are also available as are
the replacement drums. But the drums are relatively costly and
they have a rather tough surface, so usually the charge roller and
CRUM are all that are needed to get a 2nd cycle out of the
cartridge. 6R1219 / 6R1220
/ 6R1221 / 6R1222 - The toner cartridges in this series have Toner
Reset CRUM chips (Customer Replaceable Unit Monitors) which you
would need to replace if you were to refill them. The CRUMs also
serve to differentiate between various markets (Europe vs. U.S.,
for example). Good aftermarket refill toner material has proven
hard to find. Part of the problem is that each toner cartridge has
a small bit of developer (carrier) material mixed in. So, if the
developer in a generic toner material is not quite right, the
toner could work fine at first, and then, result in failures as
the generic developer in the toner gradually replaces the stuff in
the developer units. 8R12088 &
8R12933 - Here's another place where you can increase the yield of
a module substantially and save some bread. Nearly all of the
models in this style use the 8R12088 in 110 volt environments. The
DocuColor 260 is the exception. It uses 8R12933 which is always a
220 volt version of the fuser. Usually after one cycle, the
machine calls for a new fuser module and by then the fuser heat
roller is nearly toasted. If you replace the fuser heat roller and
the fuser reset fuse, you can usually get another full cycle out
of the fuser or at least a good portion of a 2nd cycle. The fuse
is located on the top of the fuser just under the top cover. It is
actually a thermal fuse. When a fuser with a new fuse is
installed, the machine sees the fuse in place and gets going.
After a few copies (20-50 pages), the fuser gets hot enough to
blow the fuse and the fuser count resets. Herein lies the
best chance to save some money running these machines. Reports
from the field say that usually a cartridge will make it through a
second cycle but it is hit or miss at the end of the 2nd cycle.
Replacing the charge roller will make it far more likely that the
cartridge will last through cycle #2 because usually that is what
gets fouled up first. • 13R588 are for: C2128, C2636, C3545 • 13R624 are for: WorkCentre 7328,7335,7345,7346
Fortunately the drums, blades & charge rollers are the same for all 3 cartridge types. The drum reconditioning procedure has a few pitfalls you'll want to avoid. First of all, the drum bearing cradles are rather fragile. If you pry at the wrong side of their clips, they'll break. Here's a pair of photos which show where to pry and where not to pry: The other thing
you'll want to know is how to get the charge roll assembly off of
the cartridge. If you're like me, your first instinct will be to
pry with a little screwdriver, but it turns out using your fingers
to slide it off at each end is the right way to do it. See the
pair of photos to the right.
Removing the Charge Assembly See the photos below:
Fuser Modules:
These fusers
often fare very well after a full cycle and in some cases simply
resetting the fuser counter would be all that you'd need to do.
The only part that really fails and is worth talking about is the
fuser heat roller. Fortunately, in spite of there being four
versions of the fuser module, all use the same fuser heat roll and
pressure sleeve. The differences are subtle but they do make it
impossible to swap fusers around. The ways to reset the fuser
counter are also varied. Below are the various versions and how to
reset the counters for each: Reset
procedure: Hold down the '9' and the 'AC' buttons simultaneously.
Select "Yes" when the machine asks if you replaced the fuser. Reset
procedure: First get into the "User Tools" mode, Press the
'Access' button. Then use the default User Password '1111' (4
ones) and press 'Login'. Press 'More', and then look for "Supply
Management." Select the part whose counter you want to reset and
follow the prompts (it'll ask you if you replaced the part, touch
'Yes'). Reset procedure: On these, the fuser counter is reset by installing a set of three fuses (or a single fuse in the 7346 version) on a little board on the rear of the fuser. Britt works for
The Parts Drop, a company whose primary business is providing
parts, supplies and information for Xerox brand copiers, printers
and fax machines. You can find more information, including many of
Britt's past ENX articles on their website, (
www.partsdrop.com ) If
you'd like to read more about Xerox brand office equipment,
there's also a complete listing of past articles under
contributing writers on the ENX website (
www.ENXMAG.com ) |
DC250 style Fuser Module
C32 style Drum Ctg.
C32 style Fuser Module