FARGO electronics L000286 User Manual page 78

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Danger: You must unplug the power cable to the Card Printer to
ensure that all power is disconnected from the unit. Do not attempt any
work on the Card Printer's interior unless you have first unplugged the
unit.
CardJet 410 Card Printer/Encoder and Persona CardJet C7 Printer User Guide (Rev. 6.1) 3-4