Question about Canon PIXMA MP780 All-In-One InkJet Printer
Remove the cartridges and then pull out the print head. Look on the bottom for burned out circuit traces. Canon & HP printers (and some others) are designed to "zap" the printheads with a high current pulse that gradually destroys the printhead circuitry. This is to keep you coming back for more. These guys are greedy beyond belief! If your Canon worked for 3 years consider yourself lucky. This is not the only solution but it is definitely one which applies to this issue. The loud noise is not necessarily related to the black line/bad printhead problem.
Posted on Jul 29, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jun 27, 2016 | Sharp Office Equipment & Supplies
Sep 30, 2008 | HP PSC 2210 All-In-One InkJet Printer
Jan 30, 2014 | HP Color LaserJet 8550dn Printer
Dec 28, 2009 | HP PSC 2410 All-In-One InkJet Printer
Oct 19, 2009 | Samsung CLP 300 Laser Printer
Aug 05, 2009 | Dell 1600n All-In-One Laser Printer
Feb 26, 2009 | Dell 962 Photo All-In-One InkJet Printer
Jun 16, 2008 | Samsung CLX 3160fn All-In-One Printer
May 16, 2008 | Xerox Phaser 7700DN Laser Printer
Nov 30, 2007 | Office Equipment & Supplies
84 people viewed this question
Usually answered in minutes!