Question about Canon MP490 InkJet Printer
Most all-in-ones require you to scan an alignment sheet after changing the ink. Make sure the printer is on. Press Menu then use the up and down arrows to navigate to Maintenance. Click OK. Navigate to Auto Head Align and press OK. Select Yes and press OK. Load a sheet of Letter or A4 sized plain white paper in the rear tray, follow the on-screen directions. Open the output tray gently and the output tray extension. Press OK. When the page prints out, do not touch the printed sections. You should see a set of broken lines on the page, among other printing. The first section of columns will have 2 black, 1 blue and 3 black. The next row has 4 columns (blue and pink (to my eye)); the final row is 3 blue and 3 pink. If this prints okay, then select Yes and press OK. Next place the printed page face down on the glass of the scanner unit so that the black triangle at the top left of the page is in the left back corner of the glass. (The triangle is an alignment mark and lines up with the alignment mark on the edge of the scanner unit.) Close the document cover and press OK. The sheet will be scanned and the print heads will be adjusted. Do not open the document cover or move the sheet until the unit has completed the adjustment. Afterwards you can discard the sheet.
If the unit fails to adjust the print head, it will indicate this in the LCD screen. In that case, try manually adjusting the print head from the Canon Toolbox on your computer. If you can't get the printhead to align properly manually, the unit may need service.
For pictures, see the manual or support for the all-in-one here: http://www.usa.canon.com/cusa/consumer/products/printers_multifunction/photo_all_in_one_inkjet_printers/pixma_mp490#ServiceAndSupport . If you use the Support option, search for align print head.
I hope this helps.
Posted on Mar 16, 2011
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Posted on Jan 02, 2017
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try changing the ink cartridges.
This may have happened due to low ink levels. Also try reinstalling the printer driver.
If the print cartridges are damaged this problem will pop up. Even static electricity in human hand could damage the print cartridges.
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