Canon PIXMA G620 Wireless MegaTank diagonal lines through out paper.

[chiqikiss]

Hello, I recently bought a Canon PIXMA G620 Wireless MegaTank, and it's been working amazing. However, when I tried printing some stickers, it showed what I believe to be roller indents. They're not dirty; they're clean; it just looks like a stamp throughout the whole paper. I tried to look up a solution, but it seems that people are only talking about dirty marks coming through. Has anyone else had this issue?

My images are high quality at 300 DPI. I've done a manual printer head alignment, turned on "Prevent printer abrasion", done a deep clean, plate clean, roller cleaning, and it's still doing it.  I'm not sure if there's anymore options. The paper I'm using is not that thick and it goes through the printer fine, no jams. It just comes out with those marks. You can't see them head on but when you tilt the paper at an angle under some natural light, it's very noticeable. 

[JayC1]

Hi chiqkiss! Thanks for posting in the Canon Community Forum. I see that you have a PIXMA G620 and your prints are coming out with indentations.

When paper is too thick for the printer, you can see indentations in certain spots, but not throughout the entire sheet of paper. You would also see dark marks (called banding) where the print head rubs up against the paper while printing. I do not see those signs in your print.

It is much more likely that the indentations you are seeing are being caused by how the ink interacts with the paper. However, there are a few checks you can make to see if there is another reason why you see those indentations.

First, please shine a flashlight to a sheet of paper that has not yet been used. If you can see those same indentations on a blank sheet of paper, then they will be there when it comes out of the printer as well.

If you don’t see those indentations when shining a flashlight and looking closely, I recommend loading the paper and then printing a blank page. You can open Microsoft Paint and print a blank sheet, or you can open WordPad and print a blank page. If the page goes through and you do not see those indentations on the paper when it comes out, then the marks are there due to the way the ink is interacting with the paper.

If the blank sheet feeds through the printer and you do see the indentions, then the paper is too thick for the printer. If you are not using Canon paper, we can only recommend paper that is 17-28 lb thick (64-105 gsm). Canon does make sticker paper for this printer. Those papers are listed in the following section of the manual:
https://ij.manual.canon/ij/webmanual/Manual/All/G600%20series/EN/UG/ug-189.html

I recommend trying the Photo Sticker paper made by Canon mentioned in the manual. The ink should interact better to Canon paper. If you prefer to use the paper you have, please reply to this post with answers to the following questions:

• Who is the paper’s manufacturer?
• What is the paper type (name of the paper) as seen on the paper packaging?
• According to the packaging, how thick (heavy) is the paper?
• Do you see the indentations on a sheet of paper that has not been fed through when you shine a flashlight to it?
• If you feed a blank sheet through (by printing a blank page or making a copy with nothing on the scanner glass), do you see the indentations on the blank sheet of paper that comes out?
• Are the paper guides in the rear tray adjusted to match the width of the paper?
• What paper type are you choosing in the print settings window on your computer?
• Which paper type are you choosing when you go through the process of loading paper?
  See the following page and refer to step 9 and 10:
  https://ij.manual.canon/ij/webmanual/Manual/All/G600%20series/EN/UG/ug-107.html

I hope this information helps. Thanks for choosing Canon.