My Canon Pixma 4000 prints very good photographs but recently has started making a very faint rainbow style finish of blue/orange/yellow at the end of each photo which ruins an otherwise good print. I have done the usual maintenance of cleaning , aligning etc, several times and also replaced the ink tanks but the fault persists. Can you help? Bill
Hello,
You might try cleaning or unclogging the print head[s] with a drop of water or two onto the outlet from the print cartridge[s] and a drop of water or two onto the inlet orifice into which the outlet of the cartridge feeds the ink.
An error occurs each time I try to do a head alignment. My printing is streaky. I have cleaned the...
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An error occurs each time I try to do a head alignment. My printing is streaky. I have cleaned the heads and done nossle check - it prints ok but then when I try to print a document it is steaky again.