Question about Canon Office Equipment & Supplies
Error 240 means Communication error in the DC controller; this
error indicates a communication error with the DC controller and the
image processor. Check all connections on these boards.
Unfortunately, an E240 designates a problem with the Main Controller of the machine. It could be the memory, the boot ROM chip, or the board itself. In most cases it ends up being that the Main Controller PCB is the culprit.
Hope this helps.
Posted on May 17, 2011
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Posted on Jan 02, 2017
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