Question about Canon PIXMA MP780 All-In-One InkJet Printer
Error code 357 has to do with the print head & waste tank.
You can try and fix it yourself by performing the following:
-Turn off the printer.
-Open the top & both doors.
-Manually slide the ink cartridge carrier to the left.
-When you look back where the ink parks you will see a rectangular white assembly with 1 long & 2 short plastic tabs standing vertically.
-clean these carefully with a cotton swab & rubbing alcohol. They don't have to be perfect.
-NOW HERE IS THE HARD PART. Carefully reach around to the back of this assembly & move it forward. It should slide front to back easily. If it doesn't it's probably stuck with some dried ink.
Once this is free, slide the ink tray back, close evedrything up & start your printer.
The problem should disappear
Posted on Nov 23, 2008
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Posted on Jan 02, 2017
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