Brother 7550MC, 6550MC Replacing the Drum Unit, 13-5, Remove the old drum unit. See page13-2

MFC 4550/6550MC/7550MC

OP-US-5.0

REPLACING TONER CARTRIDGEAND DRUM UNIT

Replacing the Drum Unit

The machine uses a drum unit to create the print images on paper. If the display shows CHANGE DRUM, it indicates the drum unit is nearly at the end of its life. We recommend you prepare a new drum unit to replace the current one. Even if the display shows CHANGE DRUM, you may be able to continue to print without replacingthedrumunitforawhile.Ifthereisanoticeabledeteriorationintheoutput print quality even before CHANGE DRUM is shown, then the drum unit should be replaced.

WARNING

•When removing the drum unit, handle carefully because it contains toner.

•You should clean the machine when you replace the drum unit. See page 14-1~3.

NOTE: Thedrumunitisaconsumable,anditisnecessarytoreplaceitperiodically. The drum unit is rated at approximately 20,000 pages. There are many factorsthatdeterminetheactualdrumlife,suchastemperature,humidity, type of paper and toner that you use and the number of pages per print job, etc...Thedrumlifeisestimatedatapproximately20,000pagesat20pageper job and 8,000 pages at 1 page per job. The actual number of pages your drum willprintmaybesignificantlylessthantheseestimates.Becausewehaveno controloverthemanyfactorsthatdeterminetheactualdrumlife,wecannot guarantee a minimum number of pages that will be printed by your drum.

Forbestperformance,useonlygenuinetoner,andtheproductshouldbeused onlyinaclean,dust-freeenvironmentwithadequateventilation.

Followthesestepstoreplacethedrumunit:

1) Turn off the power switch or unplug the power cord.

2)Open the top cover.

3)

Top cover

Drum unit

3)Remove the old drum unit. (See page13-2.)

WARNING

Just after you have used the machine, some internal parts of the machine are extremely HOT! So please be careful. (See page 14-2.)

Maintenance

13-5