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  1. VS640, VS540 service mode protection code firmware 4.20

    Has anyone got the code to get into the service mode on the vs series of printers with firmware 4.20 . it says service mode protected. I need the key sequence to unlock service mode please.
  3.

    vs640 test print pattern problem what is this? please help

    Hi im looking for advise on what the problem is with my printer seems to be getting worse and does not get any better with cleaning cycles.
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