Question about Canon PIXMA MP780 All-In-One InkJet Printer

1 Answer

Blurry Scanning/Copying MP780 produces blurry black and white copies and scans but color copies are fine. Prints fine in color or black and white, so problem seems to be limited to printing/scanning. I've tried realigning print heads, cleaning and other maintenance items from the internal menu with no luck. Have had this printer for 2 years and problem just started a couple weeks ago.

Posted by on

  • 1 more comment 
  • apf997 Jul 28, 2008

    I scanned both B&W and color no problem using the flat bed scanner and not the ADF.

  • sglittle473 Sep 12, 2008

    I took my MP780 to a Canon repairer because it was smudging in one line down the page and he told me it had a moth caught in it and repaired it. I printed tonight and it's no better!!!!!!!!!!!!!! I'll ring him tomorrow, but if anyone can help I'd appreciate it. It's fine in colour, and it's smudging in one line down the page -hence the idea that there was a dead moth caught made sense!

  • Anonymous Mar 18, 2014

    prints one copy fine. request more than one copy and nothing happens

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,479 Answers

Are you scanning both black and white and color the same way? The ADF (automatic document feeder) uses a different scanning area than when you place the document on the scanning glass. If you open the scanner cover, look to the left of the main scanner glass to the narrow strip used for the ADF. Make sure this narrow strip is clean -- no ink or white-out or scratches. This can make your copies look dirty or smudged.

Posted on Jul 26, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why-print-comes-all-black-all-over-paper/


Check the scanning lamp, when copying see if the scanning is not working,,it should be turn on when copying, if yes, then replace the scanning lamp, or drum unit, drum unit have certain life span or copying yield about 100 to 300 thousand copies produces. Check your counter reader in your machine. If yes, then replace drum unit, hope it help.....

Jun 15, 2014 | Kyocera Mita Printers & Copiers

1 Answer

Blurry copies


clean ur leser mirror&full gradiation adjust

Feb 08, 2013 | Canon imageRUNNER iR C4080 Color Copier

1 Answer

My HP laserjet 3050 when i copy a page the paper prints black


Symptom: Black or Blank image while copying or scanning.
Part suspect rating: Scan head..70%
Scan head cable...25%
Formatter...5%
For tech guys only: Remove ADF unit from the printer, remove both side covers of adf, remove & replace scan head, check...
Replace scan head

Jul 21, 2012 | HP LaserJet 3050 All-In-One Printer

1 Answer

Scan and copy produce a black page


Scan head faulty(which is moving while scanning & copying) , replace it..

Nov 16, 2011 | HP Officejet 6500 Wireless All-in-One...

1 Answer

Copying and scanning don't work but produce all-black image


Hi,

please clean the scanning glass and also the feeder.
Open the machine check if any paper has struck anywhere inside.
In most of issues it will work, if this does not works call your technician to troubleshoot the problem

Jan 13, 2010 | HP Photosmart C7280 Printer

1 Answer

When scanning or copying a document it prints a black page


IN NO TIME AT ALL, YOU WILL RUN OUT OF INK.

SUGGEST YOU REMOVE PROG RESTART, THEN SETUP AGAIN. GLITCH?

Nov 15, 2009 | Dell V305w All-In-One R840635AU InkJet...

1 Answer

Scanning/copying problem (Lexmark 6500 series x6575)


please just you scan the object to resuleasion in and dp is 600 to 12oo select and you scane object and aply print is dark is ok.

Sep 17, 2009 | Lexmark X5150 All-In-One InkJet Printer

1 Answer

Problem scanning or copying in color.


if your cartages are ok then ckeck the colour print from pc if it is ok then clean ccd and if the problem will also come then replace scanner cable and after that if problem will also come replace scanner ccd

Jun 20, 2008 | HP PSC 2210 All-In-One InkJet Printer

1 Answer

Copier feature (Black or Color) only produces a Black page


I beleive you are not able to make a color copy, once try to scan from the computer or all-in-one to check whether the scanner mechanism is working properly or not, if the scan comes out fine then remove the color cartridge and clean the copper contacts of the cartridge with soft cotton cloth and also check the ink level of the cartridge, if the issue persists replace the color cartridge and if even the scan does not comes out good then there is an issue with the scanner mechanism.

May 14, 2008 | HP PSC 1315 All-In-One InkJet Printer

1 Answer

HELP!!


First off, I'm not too sure if that Printer is a color printer. Its a color scanner yes, but i don't think is a Color Laser Printer! Secondly, can you explain in more detail what kind of scanning and printing issues you have witht the printer? Prints unclear as in blurry or too light? are u having trouble installing the scanner or is it not scanning the images correctly? regards babb

May 02, 2007 | Samsung SCX 4521F All-In-One Laser Printer

Not finding what you are looking for?
Canon PIXMA MP780 All-In-One InkJet Printer Logo

552 people viewed this question

Ask a Question

Usually answered in minutes!

Top Canon Printers & Copiers Experts

kakima

Level 3 Expert

96683 Answers

old marine
old marine

Level 3 Expert

1479 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Canon Printer and Copier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...