Question about Canon i-SENSYS MF4140 All-In-One Laser Printer

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What is LTR paper

Black streaks on photostat

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Clean the imaging unit photoconductor drum and the drum cleaning blade or change the cleaning blade.LTR Letter size paper.

Posted on Apr 24, 2013

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1 Answer

Streaks on paper


make sure the glass is completely clean also the regilla of exposure
tend to be waste paper or corrector.

Dec 06, 2013 | Panasonic Workio DP-3030 Printer

1 Answer

Bl;ack streaks on paper


Pull down the manual feed tray door.
Load a few sheets of paper in tray 1.
Print something.
As the paper feeds into the printer observe it.
When the paper gets halfway in, open the top cover.
Lift out the toner and look down at the paper.
Does it have a black streak? If yes...change the toner.
If no...change the fuser.

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We have a Brother intellifax 4750e. When we send a fax, there is a black streak down the right hand side of the paper. When we receive a fax, the streak is not there. The streak is about 1" wide. ...


Try cleaning the rollers with rubbing alcohol using a good quality paper towels, I find there is a buildup on the rollers causing streaking on the paper. If that fails the print head must be suspect.

Dec 30, 2010 | Brother Office Equipment & Supplies

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I have the same streaks problem. Any solutions?

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BIG BLACK STREAK ON PAPER


If you're experiencing horizontal streaks, and already tried changing cartridges but that don't help, look in the bottom of the paper tray. If that small metal ground terminal gets ditry or bent, that could be the cause.

May 08, 2009 | Brother HL-2070N Laser Printer

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What causes the toner to leave color streaks on the paper? It's leaving red streaks and I've replaced the magenta & black developers....but could it be the PCU causing the problem?


The developers almost never streak. I would be looking at your PCUs. Developers have a tendency to leave voids and dust the paper. PCUs tend to streak as the cleaning blade and charge roller wears out.

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1 Answer

When I photostat, items repeat one page


Replace the drum and cleaning blade,also check that the fusing roller is clean.

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