Printronix L5535 - Manual (Page 55)

Replacing The Toner Cartridge
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6. With the cover tape facing up, begin inserting the cartridge into
the toner hopper, and slowly pull off the cover tape in the
direction of the arrow. Remove the last of the tape just as the
cartridge is completely inside the hopper.
Legend:
1) Pin
2) Toner Hopper
3) Cover Tape
4) Notch
7. Fit the notch to the pin on the developing unit. Push the new
toner cartridge as far as possible into the toner hopper.
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