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12-22-2011 08:29 AM
My 4280 used to happily use the refilled cartridges. Now it won't. What is the override on the chip to make it work?
Once again, there is no "chip". The printer does perform an electrical check on the cartridges before it uses them. If a cartridge fails electrically it will not print. Cleaning the cartridge contacts may resolve the issue, otherwise you will need to replace the cartridge with a fresh one.
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02-04-2012 10:48 PM
Toner cartridges contain a powdery substance that is already dry and can be stored for a while you wont have to worry about an expiration date. However it is important to know that you can only store it in certain temperatures, there should be some info on the cartridge box or you can find it on the manufactures website. HP Laser Jet 1020