Question about Canon PIXMA MP830 All-In-One InkJet Printer

4 Answers

Heavy black line

Getting a heavy black line on the underside of the printed page. Have performed all the listed cleaning functions, but cleaning the bottom roller seems to take care of it. Problem is, it keeps coming back. Shall I give up and trash the printer (one and 1/3 years old) or is this fixable?

Posted by on

4 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: heavy black line

Run the "Clean Bottom Plate" routine under the "Maintenance" tab. I ran it about 8 times and it finally got all the gunk out.

Posted on Feb 01, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: heavy black line

I am having this same issue. I have replaced the ink cartridges (it is an inkjet not a laser so no drums as above mentioned), ran the bottom plate cleaning many times, and removed and cleaned the foam ink absorber that lays in the printhead track (it was not really dirty), lastly I cleaned the two porus absorbers at the end of the track where I assume the two black haeds "park". Any other ideas or suggestions?

Posted on May 27, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Canon Master
  • 691 Answers
Re: heavy black line

If there is a foam pad under the track that the print travels along, remove it (carefully - they tear easily) and wash it in warm soapy water. This helps on several Epson models but not sure if the Canon is the same.

Posted on Jun 21, 2007

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 8 Answers
Re: heavy black line

Have you replaced the drum/cartridge in the unit. Sounds like the drum/toner cartridge unit is defective.

Posted on Jun 21, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

HP 9500 mfp: All pages aren't being stapled and it's printing a perfect black line about 2/3 down the page of all documents fed through the ADF.

Black line.....there are 2 smaller rectangular glasses that the pages are scanned through. When you lift the ADF you will see one of them next to the large glass platen, the other is on the underside of the ADF. Clean these with a wetwipe or alcohol.
The pages not being stapled, on the exit tray where the pages come out after being stapled there is a set of black rollers near there that get dirty and will not feed them into the stapler easily, you can clean these with WD40

Apr 20, 2010 | HP LaserJet 9500mfp All-In-One Printer

4 Answers


No black line while you scan, but it only appears while you are printing?

Mar 18, 2008 | Canon PIXMA MP530 All-In-One InkJet...

1 Answer

When printing on my Canon Pixma MP500, there is a dark black line down the middle of the page. As the pages print, it gets lighter and lighter, but is very dark on the first one. Any thoughts?

Ink tends to overflow at the bottom guide rollers and the roller gets coverd in ink and causes the black line!The best will be to take it to a dealer and have it cleaned!Good Luck!

Apr 16, 2010 | Canon Pixma MP500 All-In-One InkJet...

1 Answer

Heavy black vertical lines on back of printed page despite go through cleaning functions?

Cleaning only made it worse. The ink is coming from the cleaning assembly, and you need a shop to clean up the ink and install a mylar shield to keep that from happening again. The ink absorber gets plugged and the ink comes up thru the exit rollers.

Nov 27, 2009 | Canon Pixma MP500 All-In-One InkJet...

2 Answers

I have a Lexmark Optra T614 and when I print mostly black pages such as large dark graphics, I get streaky vertical lines at 3" and 5" from the left side of the portrait oriented page, and a lighter...

You need to either call a repair tech and have the printer serviced for routine maintenance or order a maintenance kit from Lexmark to do the job yourself.

Just curious, what is the page count on the printer? When was the last time the entire print cartridge was replaced?


Oct 19, 2009 | Lexmark Optra T614 Laser Printer

1 Answer

Black lines through printed pages have cleaned unit and replaced black drum unit.....still have black lines

Clean the charge corona wire/charge corona roller and the charge corona wire gride,and the transfer/separation corona wire/roller.After clean the units and clean the optical section perform the auto image adjust mode.

Sep 28, 2009 | Sharp AR-BC260 Color Copier

1 Answer

Thick black line on printed page

If the line runs the way that the paper does I.E. vertical on a portrait then it is dirty rollers normally.
If you open the lid and wipe the rollers this shoukd reduce or eliminate the black lines.

May 03, 2009 | Canon PIXMA® MP530 All-In-One Printer

1 Answer

Hp 2420 vrtical line in page


This issue can be due to fuser. I am sure you have changed the toner cartridge.
To confirm its a fuser issue, please perform the following:
1. Try printing a configuration page from tray 1, pull the top cover, as soon as the media is 60-70% inside the printer.
This would stop the paper before reaching the fusing assy.
2. Remove the paper and check if the line exist.
If exists, fuser is not faulty.
If it does not, then transfer roller, laser/scanner assy is faulty

- If fuser is faulty, perform the cleaning page as following
1. go to configure device > print quality > create/process cleaning page
perform cleaning page 5-6 times, however, if the line is due to fuser, then fuser needs to be changed.

Let me know the next update.

- Nikhil

Nov 21, 2008 | HP LaserJet 2420 Printer

1 Answer

Black lines on the back of the printer page

the rollers / guides the the underside of the paper touches

Sep 11, 2008 | Printers & Copiers

1 Answer

Black line down the page

Is the line on the front of the page or on the back? If on the back, you need to clean the platten which is the piece of plastic under the paper.

If its on the front, and you say "It lools like a rubber cover may be missing off of one of the rollers", could you upload a picture of this roller? I don't recall any covers on rollers in Canon printers.

Try this, print out a blank page. If line is still there, print out 10 blank pages. If line is still there and has not faded, this is unusual and may need servicing. There may be a problem with the encoder strip (it's a clear plastic strip with black lines running the length of the printer slightly behind the head), Try cleaning it on both sides with a little windex on a q-tip. It's delicate so be careful.

If the line looks faded after printing 10 blank pages, some ink has dripped onto something that is contacting the paper. This could be a roller, the bottom of the head carriage or even a hair or piece if dust that is stuck in the machine or on the bottom of the head. In this case, I would recommend cleaning everything. Revove the head (tell the machine you're going to replace ink, and when it moves the head into the centre position unplug the power cord.

Remove the head and clean off any dust or hairs on the bottom. Run a Q-Tip along the bottom of the carriage assembly wherever you can. Clean any accessable rollers. If you can get at it, clean the wiper on the purge unit (the unit the head sits over when it is parked), as well as the seals.

Reinstall the head and ink, close the lid, power up and retry printing.

I hope this helps. If not, there could actually be a fault with the printhead or one of the circuit boards

Dec 28, 2007 | Canon PIXMA iP4200 InkJet Photo Printer

Not finding what you are looking for?
Canon PIXMA MP830 All-In-One InkJet Printer Logo

269 people viewed this question

Ask a Question

Usually answered in minutes!

Top Canon Printers & Copiers Experts


Level 3 Expert

94039 Answers

old marine
old marine

Level 3 Expert

1301 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