1) Before disassembling this cartridge you need gain access to the pins this can be done in two ways. 1. By melting an entrance next to the pin so that it can easily be pulled out or 2. Drill a hole as shown by the arrow on this photo and push the pins

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1) Before disassembling this cartridge you need
gain access to the pins this can be done in two
ways. 1. By melting an entrance next to the pin
so that it can easily be pulled out or 2. Drill a
hole as shown by the arrow on this photo and push
the pins out.
Option 2
Option 1
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2) You need to remove the pins from both ends of
the cartridge (NB that the 2 pins are different
lengths and that the longer pin is removed from
the cog end of the cartridge.) The spring is then
detached from the bottom half of the cartridge
and the cartridge then splits half.
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3) To dismantle the development unit you need to
remove the end cap opposite the cogs which allows
access to the toner hopper via the clear plastic
lug. Once the end cap is removed a second plastic
plate needs to be taken off, this allows you to
remove the development and charge control roller.
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4) Once the plastic plate has been removed as
shown on the previous slide. The rollers are
removed as shown in the pictures below. The
cartridge can then be fully cleaned and refilled.
The cartridge is then reassembled by re-tracing
these instructions in reverse order.
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5) The Cog end can also be taken apart, however
this is not necessary to empty or refill the
cartridge
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6) To disassemble the drum unit you need to
follow these steps firstly remove the blue
plastic handle, then the metal rings holding the
OPC in place are gently prised off. The
protective cover is then removed and the OPC and
casing are pulled apart.
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7) Once these stages are complete the OPC and the
PCR can be removed in that order. The OPC can be
pulled off the metal bar holding it in place and
the PCR can simply be unclipped. The drum unit
can then be reassembled however when the OPC is
put back onto the bar you need to make sure that
it is placed the same way round as when it was
removed. This is due to one of the ends on the
OPC being moulded to fit 2 metal teeth that can
be seen on the end of the metal bar.
Moulded to fit
Metal teeth
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8) When this cartridge is being reassembled
remember that the longest pin is to be placed in
the cog end of the cartridge and that the spring
at the rear of the cartridge is in it allotted
moulding.