Question about HP Office Equipment & Supplies
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Print heads
I've had this problem on and off for quite a while now. I find the printhead problems are due to ink drying overnight and the printer cleaning mechanism failing to wipe it off (that doesn't work properly as the machine ages). An error comes up then that a printhead is 'bad'. I remove the printhead and clean it with a propriatory fluid (which is meths basically)and that cures the problem. However it is vital that after cleaning you wipe the printface and all the contacts dry, and I mean absolutely dry, with a tissue or similar. It must be totally dry or the error is reported again. I periodically give this treatment to all the printheads as the machine doesn't wipe them clean anymore like it did when new. Hope that is of some help.
Posted on Mar 30, 2007
You did not say what the results of the check pattern showed. Were all the lines present or were there some missing?
If lines are missing, follow the instruction in my previous posts for under head cleaning.
If check pattern is good then you may have a problem with a vacuum pipe. You can download a rescue kit for CX machines to help with this problem from tradebit
Posted on Nov 16, 2007
SOURCE: toner low, tone life end
There is a gear on the left hand side of the toner to reset the toner count this can cheated be rewinding it. Yes the design is to stop the refillers or at least slow them down a bit. If this fails purchase a new genuine toner but I have seen problems with the switch that resets the toner (Either the spring on the switch has popped off or the main board has failed).
Posted on Jan 21, 2008
I had the same problem. It is most likely that your print head nozzles are clogged. Your choices are to attempt to manually clean them, or order a new print head from Canon.
Attempt the manual cleaning at your own risk, this doesn't always work. When it does not work, it means your print head is damaged.
To maually clean the print head. Printer cover up (so you can get to the cartridges and print head). Turn the Printer Off. Remove all the cartridges (I put each cartridge in a separate zip lock bag). Then flip up the lever and remove the print head.
Now heat (don't boil) distilled water (Iused a good sized cook pan and a plastic measuring cup to pour the water). Find a container you can soak the print head in (I used a deep alluminum baking pan). Pour the hot (not boiling) distilled water over the print head molding where the cartridges seat down (hold the printhead over your diposable alluminum pan). Then dunk the molded print head part into the pan numerous times. When the water gets dark change it (be carefuill not to stain the sink). Then slowly pour the hot distilled over the print head (opposite side from where the cartidges seat in). Eventually no ink will be in the water. Set the print head on a dry paper towel, and let it dry for 24 hours or longer. Reinstall the print head, then the catridges. If it worked, your true colors will return. It make take up to 15-20 photos to get all the ink catridges flowing-be patient. You can also just wait 24 hours after re-installing the cartridges, and hopefully it will take less photos to see the correct color match.
Never keep printing when a cartridge is low or out.
Print a few prints every week. Not printing for weeks causes the printheead and the ink flow to clog!
Good luck. I just recovered my S820 and my i900D using the above cleaning method. Like everything else, your mileage may vary! It cost me $1.29 for distilled water and about an hours worth of time!
Posted on Oct 20, 2008
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