SOURCE: the HP Laserjet 1020 has front cover open or the
Hello, the more certain is that this bad since the cartridge, remove to accommodate it again, if you want to be tested for direct printing of the printer opens and closes the cover 3 times, then she will try to print a test page.
If it does then verifies that the lid has a plastic tooth that goes to the printer, press the button when you close the lid, check that this function is working
SOURCE: HP 1020 Error Message
Had the same problem. Changed cartridge. Still didn't work. I suggest taking out cartridge and examining inside of printer carefully. I found a piece of balloon and a hair tie (aargh!, my kids). Works now.
Just wanted to post this as one more thing to check before junking the printer or spending money on HP support.
SOURCE: Error message coming up: The HP LaserJet 1020 has
send your printer for service. seems like, one or two sensors are malfunctioning.
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The hp laserjet 1020 the front cover door open or the toner cartridge is missing
please help and give right solution
replace main power
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