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SF-7370 multiple black streaks on copies even when set to lighest setting.

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Sounds like the drum cleaning blade is failling. If you open the machine and the drum is dirty, then it is the blade.

Posted on Sep 25, 2009

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Posted on Jan 02, 2017

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My minolta ep 4000 copier prints with thick black streaks imprinted on page. what's wrong? is it the corona, the drum, or something else?


Most likely it is the drum cleaning blade. One indicator of the drum cleaning blade going bad is that the black lines will get worse as you run multiple copies. So if you make 10 copies for example, the last copy out will be streaked worse than the first copy out. Drum cleanig blades are about $30 bucks plus whatever your local service guy charges for a svc call.
Good Luck and Thank You for using Fixya.

Jul 21, 2010 | Minolta EP4000/5000 CS/PRO Copier

1 Answer

Streaking problem on Sharp Copier SF-7321


Clean the optical mirrors on the scanning side and also remove the drum and clean a mirror beneath. Check also the drum condition and replace if necessary.

Dec 21, 2009 | Sharp AR-5320 Black and White Copier

1 Answer

Wide black line down page


open the document lid. Check to see if there is white-out on the glass platen where the document rides across the scanner. Some units require the white roll to be taken off.
sometimes a black mark on this platen can leave black streaks on copies made on this machine, and even when they send to others.
Try to clean the platen glass.

Oct 15, 2009 | Samsung SF-340 Plain Paper Inkjet Fax

1 Answer

I have a Minolta CS Pro EP 1031 Printer that makes streak marks


Drum cleaning blade has gone bad. Especially true if the streaks seem to get progressively worse as you run multiple copies. In other words run 10 copies. If the last one out is worse than the first one out it is the drum cleaning blade. Cheap part...around $25

Oct 12, 2009 | Minolta EP1031/1031F CS/PRO Copier

2 Answers

Full black


Check copy lamp if its lighting during copying if not Switch off and remove socket outlet and check lamp and thermal fuse . Clean optics.

Sep 21, 2009 | Sharp SF 2020 Copier

1 Answer

My copier is a Sharp SF Model 2215. I replaced


It is the drum.
Reasonable cost? That's up to you.
Call a few service depots and ask. Then decide if you want to invest the cash.

Jul 14, 2009 | Sharp AR-M205 Copier

1 Answer

Black blotches and streaks on copies


Sounds like a worn drum unit primarily the cleaning blade on the drum is failing. If you don't change it out soon the dirt escaping from the drum and dirty copies will foul-out you fixing unit, = more $$.

Jul 09, 2009 | Sharp AR-5316 Advanced Digital Imager...

1 Answer

Black streaks on copy


This can be anything from something on the glass to charge corona dirty, laser dirty, drum or blade or fuser rollers need to be replaced. For the average person, the best you can do yourself is to make sure glass is clean. Question..... do you get this line if you're printing also? If yes then that would eliminate the glass and has to be something inside. If no, then look very carefully at the glass and long skinny glass on top, if it has that, for white out or something on the glass. Sometimes you won't even see spot unless you look at just the right angle. Good luck. Please rate this if it helps.

Jul 03, 2009 | Sharp SF 2020 Copier

2 Answers

Big streaks on copies from Sharp SF-7800 copier, not fax machine.


You probably have some build up on the glass, which happens if you use the auto feeder most often. Alcohol type cleaner will remove with a very softcloth. One small dot will look like a long streak on a feeder, much like a streaked fax. The other issue is the photoreceptor belt has nicks or is dirty eaither way it needs to be replaced. Try the cleaning first and you may have to look hard for the small dots built up on the glass.

May 11, 2009 | Sharp Office Equipment & Supplies

1 Answer

Streaky copies


It probably has several issues - optics dirty, and drum, and blade failing. I would also imagine that even the Solid "blacks" aren't as black as they could be, and that would be the developer. This machine is in the 17 year old range, and I wouldn't spend dime on it

Mar 29, 2009 | Ricoh Office Equipment & Supplies

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