Question about Canon PIXMA MP780 All-In-One InkJet Printer
The copier seems to be working only with colored copies. When i copy in black and white i am not getting any prints whatsoever. Also the ink cartridges are full so i am wondering what the problem is.
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Posted on Jan 02, 2017
SOURCE: Blank copies
I've tried everything before for months... unplugging, new cartridges, servicing, etc. I've always avoided jarring an electronic item, but hitting the front fixed it! A couple of open-palmed smacks above the paper drawer, and it printed this very page. Apparently, sometimes the cover over the laser sticks shut after replacing the print cartridge, or removing a paper jam. Sounds crazy, but smack it!
Posted on Jun 16, 2008
A part solution is print/properties/maintenance/ink cartridge settings/select black only.
You do initially have to buy another color cartridge but you won'thave to buy another expensive color cartridge again in the future.
Posted on Jan 12, 2009
On your nozzle check, do you see the grid at the top (indicated by red arrow in picture below)? If you don't see this, your pigment black nozzles aren't working. The black bar at the bottom is from the dye black nozzles (small black tank). You may have either plugged nozzles or a bad print head.
Posted on Mar 03, 2010
SOURCE: ink absorber is full
Waste ink is full. The printer needs servicing. Can be done yourself, though EXTREMELY MESSY! And you'll need to find how to reset the counter, or just look here:
The waste ink pad is a huge and dirty job. It requires nearly full disassembly of the machine and full washing and drying of the waste ink pads. Resetting the counter without cleaning the pads will result in waste ink overflowing out of your printer and on to what ever the printer is on. As for printer disassembly, service manuals are not generally available for consumer grade machines, which means you're on your own. Having torn down many machine's myself I can tell you it takes time, patience and a good memory. Take good note of where everything came from and how it goes back together.
Posted on Apr 02, 2010
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