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  1. #1
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    MP C4504 human sensor

    i just got one of these in the office, but the human sensor is not turning on the machine. the user tools is turned on and the sp mode is on.

    am i missing something?

  2. #2
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    Re: MP C4504 human sensor

    It's a proximity sensor so it can wake up in 1 second when someone goes to use it, doesn't actually wake the machine up without been touched just allows almost instant startup.

  3. #3
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    Re: MP C4504 human sensor

    cool, i was thinking it woke the machine up when walking up to it...so i guess its doing its thing.

    thanks!

  4. #4
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    MP C4504 human sensor

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    Re: MP C4504 human sensor

    It gets things started but does not bring the display up until you either set an original in the DF, lift the DF or touch the display. The Aficio 551/700 had a motion sensor that brought the machine completely out of sleep mode every time anyone walked past it. It was a major pain in the ass.

  5. #5
    Geek Extraordinaire 2,500+ Posts KenB's Avatar
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    Re: MP C4504 human sensor

    Quote Originally Posted by slimslob View Post
    It gets things started but does not bring the display up until you either set an original in the DF, lift the DF or touch the display. The Aficio 551/700 had a motion sensor that brought the machine completely out of sleep mode every time anyone walked past it. It was a major pain in the ass.
    I remember that.

    Not exactly your basic crowd pleaser.
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  6. #6
    laphibas
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    Exclamation Re: MP C4504 human sensor

    Excuse me, but I did not understand why the sensor does not activate the machine?
    thanks for your patience

  7. #7
    It's not easy being green 1,000+ Posts Cipher's Avatar
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    Re: MP C4504 human sensor

    Quote Originally Posted by laphibas View Post
    Excuse me, but I did not understand why the sensor does not activate the machine?
    thanks for your patience
    It's purpose is purely for background pre-recovery.
    Not to actually wake the machine from sleep / energy save.

    The idea being from the end users perspective is the machine reaches the ' Ready ' state almost instantly.
    When in fact it actually had a few seconds head start when it detected motion up to 6ft away.

  8. #8
    Geek Extraordinaire 2,500+ Posts KenB's Avatar
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    Re: MP C4504 human sensor

    Back in the day of the 551/700 we mentioned before, the machine actually did come completely awake, with the display turning back on.

    Not only was it a waste of energy, but it used to freak people out.

    We had more than a few calls for "It's turning itself on! Make it stop!"

    BTW...There is an explanation in the service manual as to how the feature operates, I think it is about 3 pages. I actually sent those pages to a customer who was asking about it.
    “I think you should treat good friends like a fine wine. That’s why I keep mine locked up in the basement.” - Tim Hawkins

  9. #9
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    Re: MP C4504 human sensor

    It looks like the sensor pre-triggers the android waking up in the background when someone approaches the machine without switching on the display.
    Hard to explain for end user. The machine is ready to use just after screen touching without a lag
    Microsh.t is finished and Linux Rulez

  10. #10
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    Re: MP C4504 human sensor

    There are three phases in the operation of the proximity sensor:• First, the sensor detects the presence of the operator within the arc in front of the machine, and then
    signals the machine to leave the STR mode (or Engine OFF mode) and enter the Pre-recovery
    mode.
    • Second, as soon as the machine enters the Pre-recovery mode it resets the Engine Off mode timer
    for 5 min. If the operator does not touch the machine for 5 minutes, the machine slips back into the
    Engine Off mode. If the operator touches the LCD, or opens and closes the ADF or front door, etc.,
    the machine shifts to Standby mode.
    • Third, once the machine enters Standby mode, if the operator does nothing to start operation, the
    machine will gradually step down from Standby mode to Lower Energy mode, Quiet mode, Engine
    Off mode, and then finally to STR mode.

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