2 Remove the new toner cartridge from the protection bag. Peel off the seal (1) from the toner cartridge.
1
3 Remove the handset and document stacker.
4 Lift open the front cover (1), holding the dotted area (2) on the right side.
3

8. Help

8.4Replacing the toner cartridge and the drum unit

When the display shows the following, replace the toner cartridge.

TONER LOW

TONER EMPTY

To check the drum life and quality, please print the printer test list (page 64). If printing quality is still poor, replace the toner cartridge and drum unit. To ensure that the unit operates properly, we recommend the use of Panasonic

toner cartridge (Model No. KX-FAT88) and drum unit

(Model No. KX-FAD89). See page 10 for accessory information.

To maintain print quality and machine life, we recommend you to clean slots and openings (page 6) and the inside of the unit (page 62) when replacing the toner cartridge and/or drum unit.

Caution:

LWe 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.

LThe 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.

LDo not unplug the unit. Loss of fax documents in memory may occur.

LDo not leave the toner cartridge out of the protection bag for a long time. It will decrease the toner life.

LDo not add toner to the toner cartridge.

1Before opening the protection bag of the new toner cartridge, shake it vertically more than 5 times.

2

1

Caution:

The fuser unit (3) gets hot. Do not touch it.

5Remove the drum and toner unit (1) by holding the two tabs.

2

1

LDo not touch the transfer roller (2).

LIf you replace the toner cartridge and the drum unit at the same time, skip to step 9.

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For assistance, please visit http://www.panasonic.com/help

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Panasonic KX-FL421 manual Replacing the toner cartridge and the drum unit, Toner LOW Toner Empty