Panasonic KX-MB771GR Service Manual page 72

KX-MB771GR
8.1.4. REPLACING THE TONER CARTRIDGE AND THE DRUM UNIT
When the display shows the following, replace the toner cartridge.
To check the drum life and quality, please print the printer test list. If printing quality is still poor or "REPLACE DRUM" appears on
the display, replace the toner cartridge and drum unit. To ensure that the unit operates properly, we recommend the use of Pana-
sonic toner cartridge (Model No. KX-FAT92X) and drum unit (Model No. KX-FAD93X).
To maintain print quality and machine life, we recommend you to clean slots and openings and the inside of the unit when replacing
the toner cartridge and/or drum unit.
Caution:
• We cannot be responsible for any damage to the unit or degradation of print quality which may occur from the use of a
non-Panasonic toner cartridge and drum unit.
• The drum unit contains a photosensitive drum. Exposing it to light may damage the drum. Once you have opened the
protection bag:
— Do not expose the drum unit to light for more than 5 minutes.
— Do not touch or scratch the black drum surface.
— Do not place the drum unit near dust or dirt, or in a high humidity area.
— Do not expose the drum unit to direct sunlight.
• Do not leave the toner cartridge out of the protection bag for a long time. It will decrease the toner life.
• Do not add toner to the toner cartridge.
1. Before opening the protection bag of the new toner cartridge, shake it
vertically more than 5 times.
2.
Remove the toner cartridge and drum unit from the protection bags.
Peel off the seal (1) from the toner cartridge.
• Do not touch or scratch the black drum surface (2).
3. Place the toner cartridge (3) into the drum unit (4) vertically.
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