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  1. #1
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    mp 4001 toner issue

    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?


  2. #2
    Retired 5,000+ Posts slimslob's Avatar
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    Re: mp 4001 toner issue

    Check the toner bottle tray and the toner entry chute on the PCDU for clogs or obstructions


  3. #3
    Service Manager 2,500+ Posts
    mp 4001 toner issue

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    Re: mp 4001 toner issue

    Quote Originally Posted by slimslob View Post
    Check the toner bottle tray and the toner entry chute on the PCDU for clogs or obstructions
    Agree.
    Was the bottle you replaced empty?
    If so, there's a god chance the plug from the top of the bottle is still in the toner hopper and blocking the flow from the new bottle.
    If not, then probably either a toner sensor, or toner adding problem


  4. #4
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    Re: mp 4001 toner issue

    Quote Originally Posted by Rickh200 View Post
    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?
    what u use toner? the counters of drum and dev.


  5. #5
    Ricoh Fanboy 1,000+ Posts Oze's Avatar
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    Re: mp 4001 toner issue

    I've had to replace a density sensor for this issue in the past.
    It's an awful job too.
    density sensor.JPG


  6. #6
    Technician withnail's Avatar
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    Re: mp 4001 toner issue

    Strip the toner hopper and check the 4 mylar paddles haven't come unstuck


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