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Brother laser and transfer PCBs

Discussion in 'Hobby Electronics' started by atec77, Oct 9, 2010.

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  1. atec77

    atec77 Guest

    What do you call toner transfer ?
    usually image problems stem from failure to clean correctly or a bad drum
     
  2. Does anyone know if using a recycled toner cartridge can solve the problems
    of using toner transfer with Brother printers?

    All the best

    Ian Macmillan
     
  3. terryc

    terryc Guest

    Asking the question in an electronics forum, I suspect it was printing a
    layout on pcb by first printing onto paper, then ironing it onto the
    copper.

    If such, considerations are
    turned up setting to max?
    tried different brands of paper?
    right iron setting and method?
     
  4. I have used this PCB transfer method a lot in the past, using a now defunct
    Canon photocopier. However my Brother laser printer doesnt make acceptable
    transfer images, despite extensive experiments with paper and methods. The
    images are fine, but they dont transfer properly. I see other comments on
    the net about this problem with Brother printers.

    I have discovered that Brother printers use a positive charged toner while
    the majority of laser printers use a negative charges toner, so my idea that
    a different toner in a recycled cartridge might help seems less likely. It
    seems temperature may not be the only factor.

    By the way, I must say we are very happy with Brother printers - we now have
    three of them, good prints, no problems, economical.

    I will experiment with surface treatment of the copper substrate to try to
    improve the copper to toner bond. Flame treatment, pre-etch, and tin (or
    other) plating are on the agenda.

    Incidentally, does anyone know if the U.S. electroless tinning product
    "Tinnit" is available here?. Probably not shippable from U.S.A....

    All ideas appreciated!

    All the best
    Ian Macmillan
     
  5. I see that all the previous responses to this post have evaporated. However
    I found a simple and inexpensive solution to this problem. I print a nice
    paper copy of the PCB artwork and take it to my local print shop and get a
    20c photocopy of it on Kodak Gloss Photo paper (Cat 665 7076). This copy
    works fine. Incidentally, I carefully preheat the board (fibreglass) with a
    propane torch until it just starts to colour, then quickly roll the image
    paper on to it with a rubber art roller. I have backed this up with a
    domestic iron, but suspect the roller treatment is all thats really needed
    using the hot board approach.

    All the best

    Ian Macmillan
     
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