Mita DP-2800 Service Manual page 198

About the toner
The printer should use the proprietary toner kit. To ensure the high print quality and long
service life, the following handling precautions should apply.
Caution: As the printers are designed to ensure the optimum print quality when used with
the proprietary toner, we do not recommend to use any refilled toner containers
that may be available commercially. This is because we have no means for
control over how such refilled toner could affect the print quality and the reliability
of the printer.
Toner container handling
To loosen and mix the toner inside before use, with the label side down, thoroughly shake
the toner container (in the direction of the arrow) 5 times or more.
Caution: Do not attempt to disassemble or refill the toner container.
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