need some help please, i have a ricoh mp 4001 that after toner was replaced still saying toner depleted, how does this machine sense toner?
need some help please, i have a ricoh mp 4001 that after toner was replaced still saying toner depleted, how does this machine sense toner?
Check the toner bottle tray and the toner entry chute on the PCDU for clogs or obstructions
I've had to replace a density sensor for this issue in the past.
It's an awful job too.
density sensor.JPG
Strip the toner hopper and check the 4 mylar paddles haven't come unstuck
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