T R O U B L E S H O O T I N G A N D M A I N T E N A N C E 161

WARNING

If you do not position the tab at the home position, printed pages may have vertical stripes.

4Install the drum unit into the machine.

See the section “Replacing the Drum Unit” in this chapter.

5Close the top cover.

6Plug in the power cord.

7Connect the telephone line.

Replacing the Toner Cartridge

The machine can print approximately 2,200 pages with one toner cartridge. When the toner cartridge is running low, the display shows CHANGE TONER. Actual page count will vary depending on your average document type (i.e. standard letter, detailed graphics).

It is a good idea to keep a new toner cartridge ready for use when you see the toner low warning.

Discard the used toner cartridge according to local regulations. If you are not sure of them, consult with Brother dealer for service. Be sure to seal the toner cartridge tightly so toner powder does not spill out of the cartridge. When discarding used toner cartridges, keep them separate from domestic garbage.

It is recommended that you clean the machine when you replace the toner.

Toner Empty Indicator

When the toner cartridge is running low, the display shows CHANGE TONER and the Toner Empty LED on the control panel flashes on and off to indicate the toner is low.

Display

 

 

Toner Empty LED

 

 

 

 

 

 

 

955O

 

 

 

 

 

 

 

status

 

 

 

 

Fine

Fax

 

Voice

Doc.

 

 

 

 

 

 

 

 

status

 

 

 

 

Photo

TAD

 

Record Erase

Play

 

 

 

 

 

 

 

 

 

 

 

 

 

S.Fine

F/T

 

 

 

 

 

 

 

 

 

 

 

Help/

 

 

 

Menu

Set

 

Clear

Tel - Index

Resolution

Mode

Broadcast

On/Off Line

FF/Cont Print Priority Test/Reset

Mute

 

Verify

 

 

 

 

 

 

 

 

Tel

A B C

DE F

High

01

02

03

04

 

 

 

 

 

 

 

 

1

2

3

 

 

 

 

 

13

14

15

16

Enlarge

Reduce

Copy

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Brother MFC-9550 manual Replacing the Toner Cartridge, Toner Empty Indicator