Question about Keyspan SX Pro (SX-PRO4) Serial Adapter

2 Answers

Can't set up to use.

Bought this and installed in my G4 733 DA to interface with my HP6MP laser printer. Using OS10.3.9. I downloaded the HP OSX driver but the "puter doesn't regonize the printer and will not install. Now I read that the SX-4 works with OS8 ? I was told it would work with OS9.2 and OSX. Have I been led down the primrose path? RHB

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  • TriumphNut Oct 03, 2007

    The 3.5V PCI slots are on the G5's. Since it's a G4 733DA of course it's a 5V PCI slot.

    The MacWorld Help list downloaded HP6MP driver for OS10.3.9 & OS10.4 still will not show the printer in the ADD PRINTER Box (window?)

  • TriumphNut Oct 03, 2007

    To test with anything else ... I'd still need a driver for them. I'm sure there is no driver for a ImageWriter II for OS X. However, you've given me an Idea. I may try it after reinstalling OS9.2.
    I been using Macs since 1984 and just have a gut feeling it is S/W.

    Thanks, RHB



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Do you have any other devices operating on serial ports that you could switch to the ports on the G4 733 DA card? If you swap those, and the printer still doesn't work, we can rule out the serial card as the problem. If you swap those, and the printer works but whatever you swap to the card doesn't, we'll know it's the card that's the problem. Otherwise I have to try troubleshooting both, not knowing which is causing the issue - and that's much more complicated.

Posted on Oct 03, 2007

  • John Goodman Oct 03, 2007

    If you do try it, let me know what you find out.

    It sounds like you may have more Mac experience than I do, but I'll do what I can to help.


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This should work with OS 8.1 or greater, as long as your slot is 5v and not 3.3v but there are serial printer port driver issues, but nothing other than the usual, see below

Posted on Oct 03, 2007


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