problem: a replaced toner has not really been recognized, there is still the replacement message on the printer

solution: do a manuel toner reset on the printer
steps:
- turn on printer
- open front door
- press menu button for a longer time period, until you see the "reset menu" in the display
- choose "TNR-HC"
- confirm the "reset" message by pressing "yes"

>> now everything should be okay

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