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Thread: Help to identify a semiconductor

  1. 14th October 2004 09:05 AM #1
    vlad
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    Default Help to identify a semiconductor

    I have a Brother HL-1030 printer.
    The cartridge part # is TN6300, which is composed of toner unit and drum unit TN6000.

    Last week the printer started to leave unused toner on the paper, so all surface of the paper is grey.

    The photo drum is cleared from unused toner by a brush which is electrified in order to demagnetize it, so the drum stays always clean.

    The current passes through a semiconductor! When I checked it with tester - no signs of life.
    So I think, that it's because of this semiconductor.

    So please, help me to identify the component and where can I buy it or maybe it's analogue.

    Photos of this element are attached or you can find them here:
    http://www.angelfire.com/un/vlad/

    Thanx a lot
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  2. 14th October 2004 09:20 AM #2
    Styx
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    that is a resistor
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  3. 14th October 2004 09:37 AM #3
    Nigel Goodwin
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    Yes, and probably too high a value for it to be tested with a meter!, I can't make any sense of the writing on it - but it could easily be in the 100's of megaohms?.

    I would suggest he measures the input voltage to it, which is likely to be kilovolts - I would have thought it's more likely that the EHT circuit has died than the resistor failing!.
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  4. 14th October 2004 10:32 AM #4
    pike
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    LOL

    That certainly looks like a resistor to me :lol: :lol:
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  5. 14th October 2004 05:43 PM #5
    Sebi
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    I mean, the background on paper not a high voltage supply problem. Maybe the drum discharger lamp not work properly, and remain some charge on the drum...
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  6. 14th October 2004 06:17 PM #6
    Styx
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    Quote Originally Posted by Sebi
    I mean, the background on paper not a high voltage supply problem. Maybe the drum discharger lamp not work properly, and remain some charge on the drum...

    Err??? how can you say "I mean" when you havn't posted? and also correct yourself when talking abt high voltage when you havn't posted?

    Unless you and Nigel are one and the same person???

    interesting... :shock:
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  7. 14th October 2004 06:28 PM #7
    Nigel Goodwin
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    Quote Originally Posted by Styx
    Err??? how can you say "I mean" when you havn't posted? and also correct yourself when talking abt high voltage when you havn't posted?
    Bear in mind his location (which, happily, is filled in!), it's HIGHLY unlikely that English is his first language, and may not even be his second language?.

    So it's reasonable to give him a little slack, I presume he means that the high voltage being missing wouldn't cause this fault?. I've no idea?, I've never had anything to do with photocopiers or laser printers.
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  8. 14th October 2004 09:14 PM #8
    Styx
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    I take it its that time of the day when Irony doesnt seen that ironic...
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  9. 15th October 2004 03:54 PM #9
    zachtheterrible
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    thats 1 high resistance!!

    Maybe the 9x means 90M ohms??
    I'm no electronics god, i just talk too much.
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  10. 15th October 2004 04:03 PM #10
    Styx
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    --EDIT--
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