Old laser printer steppers


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  1. #1
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    Question Old laser printer steppers

    Hi Guys,

    I am following these forums for a few days now and I am wondering if I could use the steppers from old laser printers for an CNC router. I have four "heavy" ones, Sanyo Step-Syn 2 of 4.2V 1.5 A and 2 of 4.1 V 1.1A, each a step of 1.8°. (and a lot of smaller ones ). Could I use them for a table as Joe's ?

    Thanks in advance,

    Hugo

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    Registered Rance's Avatar
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    Hugo,

    The printer steppers that folks usually use are from the HP II & III's. Here's some various info. I've been collecting in preparation...

    Rance


    Steppers scavanged from a LaserJet II or III (http://www.cnczone.com/forums/showpo...0&postcount=86)
    http://www.cnczone.com/forums/showpo...0&postcount=29
    http://www.cnczone.com/forums/showpo...23&postcount=6
    http://www.cnczone.com/forums/showpo...2&postcount=18

    LABELED: Astrosyn
    TYPE: 23LM-C701-01
    P/N: RH7-1048 04
    5.2 V/Phase
    1.4 A/Phase
    1.8 Degree/Step
    100 oz/in
    (Drive them with 24v @ 7.5A)

    [From HP LaserJet I, II, and III:
    Lrg- Minibea Astrosyn 23LM-C701-01
    Med- Minibea Astrosyn 23LM-S047-G1
    Sml- 23LQ-C202-G2V
    ]

    Wiring Diagram:
    Coil A
    -Green
    -White/Green
    -White (CT)
    Coil B
    -White/Red
    -Red
    -Black (CT)

    Subject: Laserjet III to linisteppers ..... how???? (See http://www.cnczone.com/forums/showthread.php?t=16976)

    From http://www.cnczone.com/forums/showthread.php?t=15797
    Now you can get the HobbyCNC Board which these motors work real well with, the instruction also has the right color wire coordination for them.

    I would sugest you use a min. of 24v, but I wired three computer power suplies together in series with floating ground and got 33.6volts with 8 amps (amps are limited to the lowest amperage of power suplies, so if you have two 10a power suplies and one 8 amp then your end result will be 8 amps which is pleanty for these motors rated at 1.4a each. If you need help just let me know, I wish i was into this when i was your age.

    Joe
    - - -
    From http://www.cnczone.com/forums/showpo...9&postcount=13
    Laserjet IIp and Laserjet IIIp aren't worth the effort. The motors in them are a Canon PM60-H418Z21B motor which I can't find any information on. Its a uni-polar stepper (6 wires) but the body is a non-standard size.



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    Thanks Rance,

    The steppers I have are nearly the same, so I could use them. I have also received now the boards and processors to make UHU servocontrollers, what power the servo's must have to replace these steppers? Maybe I should ask this on an other forum

    Hugo



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    Hugo & Rance,

    Here's a link to the HP LaserJet II/III Stepper Motor Specs PDF that I put together and posted a while ago. It may make a nice addition to your "collection" if you don't already have it. Let me know if I need to correct or add to any of the information provided.

    Thanks,

    HayTay



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