Question about Lexmarkr X646E Multifunction Printer - Monochrome - 50 ppm Mono - 1200 x 1200 dpi - Fax, Printer, Copier, Scanner - USB - Fast Ethernet - LEX22G0325

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We have X646e Lexmark Printer. After not using it for few weeks we connected back again to power outlet and started it. But we got INVALID SCANNER CODE error. I went on-line and got this solution that said "Download valid scanner code to the MFP." I did not understand what it means. So our printer is not working and we needed help

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You need to download the firmware from then send it to the printer either via the network connection or usb. If you are connected by ethernet you can put the devices IP address into internet explorer and send it via the printers built in webpage, you will find an update firmware option there in the configuration menu. To use usb you would need to get the usb flash utility first
INVALID SCANNER CODE error - invalid-scanner-code-error-e3q1db5q03uhq1rbcp1qybgn-3-0.jpg

Posted on Jul 04, 2016

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I have the same issue, It just means to update the firmware. so far, i haven't got it to work after the firmware update. I laready replaced mainboard and scanner control board. lexmarp suggest to replaced the whole flatbed scanner.

Posted on Aug 19, 2014


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Lexmark x646e saying scanner cable missing while cables are connected. How can I fix?

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Turn off printer.
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A 298.01 or 298.02 Scanner Missing error is generally caused by one of the scanner cables being loose or unplugged. Please check this article on how to troubleshoot the issue:

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Lexmark x646e error 298.02 scanner missing, cable unplugged.

Who ever thinks it is a software (as in computer driver) problem, you need to read what the problem was and the steps already taken to solve.
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Other than that you can try factory reset, although this rarely works for this problem.

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Step 1: Turn off the printer for 30 seconds or longer to clear its memory
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Step 2: While the MFP is off, clear any pending print jobs from the computer or the network queue.
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