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HP Deskjet 720C banner light
I get the following error message Printer Mismatch the banner lever
does not match software. The printer stops printing, banner light stays on. Disabling the printer's bi-directional communication allows it to print. I have two of these printers and both exhibit the same error. I assume the switch or the activating mechanism is at fault. I realize these are an old but would rather fix if I can, as they serve my purpose. I know how to disassembled it but lack the expertise on servicing printers. I assume schematics are unavailable? Any information would be appreciated.TIA |
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HP Deskjet 720C banner light
"Don Whynot" wrote in message ... I get the following error message Printer Mismatch the banner lever does not match software. The printer stops printing, banner light stays on. Disabling the printer's bi-directional communication allows it to print. I have two of these printers and both exhibit the same error. I assume the switch or the activating mechanism is at fault. I realize these are an old but would rather fix if I can, as they serve my purpose. I know how to disassembled it but lack the expertise on servicing printers. I assume schematics are unavailable? Any information would be appreciated.TIA My recollection is that corrosion occurred on the connection of the switch or its pcb, causing it to always appear in the "banner" (shorted) position. If you do not use banner printing you could just remove the traces to the switch, otherwise trace out the traces to the switch and clean both ends of the connector. I have never seen a schematic for the DJ 720. Regards, Bob Headrick, MS MVP Printing/Imaging |
#3
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HP Deskjet 720C banner light
"Bob Headrick" wrote in message ... "Don Whynot" wrote in message ... I get the following error message Printer Mismatch the banner lever does not match software. The printer stops printing, banner light stays on. Disabling the printer's bi-directional communication allows it to print. I have two of these printers and both exhibit the same error. I assume the switch or the activating mechanism is at fault. I realize these are an old but would rather fix if I can, as they serve my purpose. I know how to disassembled it but lack the expertise on servicing printers. I assume schematics are unavailable? Any information would be appreciated.TIA My recollection is that corrosion occurred on the connection of the switch or its pcb, causing it to always appear in the "banner" (shorted) position. If you do not use banner printing you could just remove the traces to the switch, otherwise trace out the traces to the switch and clean both ends of the connector. I have never seen a schematic for the DJ 720. Regards, Bob Headrick, MS MVP Printing/Imaging In my case disabling the printer's bi-directional communication was only a temporary fix. I never use banner printing but the printer configuration was randomly reset back to default, probably due to one of my virus or registry cleaners. (?) Never failed, when I tried to print something I got the error message. I appreciate your help with a permanent fix, thank you. |
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