Question about Canon PIXMA MX850 Multifunction Printer
Have troubleshooted but nothing works. Can I replace the print heaed?
I would try replacing the magenta cartridge first. If it still doesn't print magenta after a cleaning then you can replace the print head, its located here:
Posted on May 11, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
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1. Press Menu to open the MENUS.
2. Press to highlight DIAGNOSTICS, and then press .
3. Press to highlight PQ TROUBLESHOOTING, and then press .
The message PRINTING... PQ TROUBLESHOOTING appears on the control-panel display until the
printer finishes printing the PQ troubleshooting pages. The printer returns to the Ready state after
printing the PQ troubleshooting pages.
the pages it produces are individual colors, black, magenta, yellow and cyan and a white page and a config sheet.If the defect is on all pages then it might be a bad transfer belt. If it is only on one of the color pages, that will tell you which cartridge is bad.
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