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Periodic Routine Maintenance
4-14
Important:
When one of the developer unit or the drum unit is expired, replace
only the expired one.
When replacing the developer unit or drum unit, clean the paper
path.
Caution:
To avoid exposing the photoconductor drum to light or
contamination, follow these guidelines:
• Do not remove the drum unit from its envelope until you are ready
to install it.
• Complete the procedure as quickly as possible to avoid exposing
the drum to light for more than three minutes.
To avoid damaging the drum:
• Never open the shutter of the drum unit until you are ready to
install it. .
• Never touch or scratch the green drum surface.
Drum unit
Shutter
• If you store the print unit out of the printer, it may be
contaminated by dust. This may cause a smudge on the page.
When storing the print unit out of the printer, close the shutter
under the drum unit and wrap the print unit with paper or
something.
Shutter ≠
User's Manual
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