Oki B721

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Replacing Print Cartridges
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Maintenance
●● Replacing Print Cartridges
If the B721/B731 is Used
Life Span of a Print Cartridge
When the [Print Cartridge Near Life] message
is displayed on the display screen of the operator
panel, prepare a replacement print cartridge.
You can keep printing approximately 250 sheets
until the next message is displayed.
When [Print Cartridge Life] is displayed and
printing is stopped, replace the print cartridge.
Note
● The actual life of the print cartridge differs depending on
the usage.
Replacement Procedure
1 Prepare a new print cartridge.
2 Insert your nger into the recess on
the right side of the printer and pull the
front cover open lever (1) to open the
front cover (2) forward.
Note
● Open the front cover gently. If you open it rapidly,
the MP Tray may open.
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3 Remove the print cartridge (3).
Note
● When toner powder adheres to the paper feeding
area inside the printer, wipe it off with a wet cloth
that has been well wrung.
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4 Take out the new print cartridge from its
bag and remove the desiccant attached
to it.
5 Place a new print cartridge (4) into the
printer.
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