Question about Canon imageCLASS D780 All-In-One Laser Printer

1 Answer

Canon Imageclass D780

Printed copies have one horizontial line when using the automatic feed. When putting a copy on the glass and printing there is no line. Where is the line coming from?

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  • tgovern Nov 27, 2009

    how do I manuel set the machine up to manuel feed the paper from the sidre.

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1 Answer

Clean the platen glass and make sure the isn't any debris or ink on it, especially by the roller. If you make a copy thru the ADF while the ink is still wet it will deposit on the glass.

Posted on Jun 08, 2007

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1 Answer

Printing from auto feed leaving lines down side of page


if you mean making a copy from the automatic document feeder check the slit glass (the thin narrow glass beside the big platen glass) for debris, white out, dirt, etc... a small dot on that glass will make a line on the copy.

Aug 20, 2013 | Kyocera FS3140MFP AllInOne Laser Printer

1 Answer

Copies are being printed with a line vertically down the side of the page. Only happens when copying using the hopper.


If it's a thin, sharp line, it's just a blob of ball-point pen ink on the scanner glass. Lift the lid, and you'll see the narrow strip of glass that the scanner uses when you feed a document through the feeder. Clean that with a rag dampened with window cleaner, or, better yet, alcohol. Even a dot of ink too small to see will show as a solid black line on anything you copy, scan, or fax via the doc. feeder.
Don't use so much cleaner that it runs under the glass.

Nov 10, 2010 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

Line is on paper once printed


A dark line on printed pages that are printed directly from the computer are most likely coming from the Drum Unit.
A dark line seen after making a COPY of a document using the feeder on top, is caused by a dirty scanner glass.

In the first example the fix is to replace the drum unit.

In the 2nd example you need to clean the scanner glass. The glass can be seen by lifting up the automatic feeder on top of the machine and exposing the large original glass. The document feeder glass is the smaller thin strip of glass that is located just to the left of the large glass. Clean this strip well with a cloth/paper towel and a bit of glass cleaner.
Good Luck and Thbak You for using Fixya.
WheatlandServices

Oct 12, 2010 | Brother MFC-8460N All-In-One Printer

2 Answers

Black lines down on printed page


This is caused by dirt/debrise on the ADF (automatic document feeder) scanner glass. You need to open up the feeder where your originals are fed in and look for a strip of glass that runs from front to back. It is about an inch or so wide. You need to clean this glass to get rid of the lines. Some models have this glass just to the left of the large main glass, but in your case I beleive it is in the feeder itself.
Good Luck.

Apr 23, 2010 | Brother MFC-7820N Printer

1 Answer

Copies leaves lines when put through the feeder,but not on the glass .......have cleaned and sprayed air can everywhere I can think of The Hp Printer is HP 3055 All in One printer


Most likely a fax has been sent or a page copied with 'white out' (Liquid Paper), still wet on the page. As the page feeds over the scanner, (a narrow strip of glass that runs across the width of the page along the feed path) the wet liquid paper comes off on the glass as a thin line and dries. Thereafter, when copying, scanning or sending a fax, the scanner light does not go through the liquid paper streak and the result when printed is a thin vertical line that runs the full length of the page.

If this is your problem: follow the path that the paper travels when sending a fax or making a copy, until you find the scanner (narrow glass strip). Take a clean, soft cloth and a small amount of methylated spirit (or white spirit) and remove the now dried Liquid Paper from the glass. Clean the whole strip ensuring that the glass is left clean and dry.

Mar 16, 2010 | HP LaserJet 3055 All-In-One Printer

1 Answer

Line down the left side of the photocopies


If this only occurs with copies (not with printed jobs), then your problem is most likely dust/dirt on the scanner (not necessarily the glass), or on the optics that feed the image to the scanner. If it's on print jobs also, it could be a simple image drum problem (they wear out over time, and frequently manifest their impending failure with vertical lines appearing down printed/copied pages.

Aug 13, 2009 | Brother MFC-7440N Laser Printer

1 Answer

Printer works fine, but when scanning to copy or scanning to fax a line appears right down the middle of the either the outgoing fax or the printed copy. This when using the feed from the top of the...


If it only happens when you copy or fax, as opposed to 'printing"...clean the scanner glass -both the main glass and the narrow **** glass on the left side.

Please rate me.

Mar 31, 2009 | Dell 1815dn All-In-One Laser Printer

1 Answer

Lines of copies utilizing automatic feeder


look to the side of your big glass and you'll see a piece of glass about 1.5" wide. thats the galss that is used for scanning from the feeder. theres got to be something on that glass. possibly white-out or even a small speck of toner can cause that. look closely.

hth,
razors

Mar 16, 2009 | Brother MFC-9440CN Laser Printer

1 Answer

Dark edges


It depends... never use a Reman cart in these machines... only use sharp...especially if the machine is under warranty.

Does this happen when,
Using the Doc Feeder
When making copies from the Glass
Or when you print from a computer (assuming you print from a PC)

If you print something and this happens then it is inside the machine
Probably toner or developer dumping...

Take a few pieces of large white paper and cover the entire glass surface... make a copy is the line there? If so see the answer above... if not then close the top and make a copy with no paper on the glass... is that black line there.. If so then your top needs adjustment...

One more test
If you make a copy using the doc feeder, this black line only occurs when making copies with the doc feed, clean the **** glass, and try again...

Oct 25, 2008 | Sharp AL 1215 Black and White Copier

4 Answers

Print Problem - vertical lines


If the problem only occurs when using the document feeder, the problem is not usually caused by the drum. When using the document feeder, try to notice where the scanner (the light assembly under your scan glass)stops just before the paper is being fed. Some multifunction machines have a small piece of glass that is separate from the large scan glass and the scanner assembly stays parked underneith it as the original is being fed over it. Most likely there is something on the glass where the scanner parks as originals are being fed thru the feeder. When putting your original on the large scan glass to copy, the mark on the glass will only show as a spot, but will show as a vertical line thru the whole copy when using the feeder.

Feb 23, 2007 | Brother MFC-7820N Laser Printer

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