Question about Canon MultiPASS MP730 All-In-One InkJet Printer
If the message appears even with new cartridges it means that either the connection between the smart chip on the cartridges and the printer's processor is not functioning properly or the processor itself is faulty. This connection passes thru 4 mechanical connectors: cartridges - print head and printhead - carrier thru pin array, carrier - data cable and data cable - mainboard thru ribbon cable connector.
To find out which you must clean and check all the connectors. The first 2 are easy - just remove the cartridges and the print head and clean them: the contact plate with a rubber eraser, the pin array with a q-tip soaked in rubbing alcohol. For the second 2 you will have to dismantle the printer and access the carrier, take out the ribbon cable out at both ends, inspect it for breaks, clean the contacts with a rubber and reattach it firmly. If after all of that you still get the error then the processor is faulty and the printer is dead - replacing the processor would cost more than a new one.
Posted on Dec 31, 2010
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Posted on Jan 02, 2017
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