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Does 64-bit booting require new printer drivers?
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I finally got my C500N color laser working again and then had to jump through some hoops to make it work with Snow Leopard and it brings me to this question:
None of my machines at home support 64-bit booting (CDs not C2Ds). When I get a new 27" iMac and try to use it in 64bit mode, will I need 64bit drivers for my printer or will I be able to tell SL to use the old 32bit drivers?
Getting the Lexmark C500N to work with OSX was a major pain, even 3 years ago when it was new. Now Lexmark has dropped support beyond Leopard. A cunning individual figured out how to make the Leopard drivers work with Snow Leopard, but I am continuing to look to the future.
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Last edited by Eriamjh; Dec 15, 2009 at 07:22 PM.
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If the printer drivers have a 32-bit kernel extension then you won't be able to boot the 64-bit kernel.
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I don't know any printers that are kernel extensions. Kernel extensions are for things like USB, Firewire, certain PCI cards, various NICs, etc. IOW, for classes of devices, but usually not for the devices themselves, esp. USB devices like your printer. If you use your printer via Ethernet all your kernel needs is the ability to use TCP/IP.
The various printer drivers that provide connectivity and additional functionality do not reside in the kernel.
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Many printer drivers rely on kernel extensions. I've got Canon, HP and Epson extensions for the printers in my labs.
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I downloaded the driver for your Lexmark and it does not have any kernel extensions. You will not be prevented from booting the 64-bit kernel by your printer.
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Originally Posted by Art Vandelay
Many printer drivers rely on kernel extensions. I've got Canon, HP and Epson extensions for the printers in my labs.
Really, what for? Additional functionality?
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I don't know. I didn't write the damn things.
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Can you give me an example of a printer that includes a kernel extension?
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HP LaserJets, Canon PIXMA Pro 9000, Epson Stylus Photo R1900 and R2400.
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I stand corrected.
I installed the R1900 driver and while I couldn't find its kext file, I did find some generic vendor specific kexts... I suspect that these are for some sort of low level notification of some sort, because I can't wrap my head around why a kernel extension would be needed for a basic print job.
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I think I misworded my question.
IF I boot into 64bit, WILL I need 64bit printer drivers or will the 32bit ones work (I guess that's assuming there is no kexts involved)?
I guess I'm not sure if a 64bit booted mac still run 32bit SW.
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If no kexts are involved (IOW you printer drivers don't rely on kexts), booting SL in 64-bit mode should have no influence.
32-bit apps run with SL booted in 64-bit mode and vice-versa. Booting SL in 64-bit mode is required to use more than 32 GB RAM or to run 64-bit kexts, but not to run 64-bit apps.
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Last edited by Simon; Dec 15, 2009 at 11:07 AM.
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OK. I should be good until Snow Tiger or whatever OSX 10.7 is called breaks my printer support.
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They were, but the C500N isn't on the list to begin with. Like I said, it was a pain to make work in the first place and it was still a struggle with Snow Leopard.
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>> C500N
Perhaps that particular model isn't the wisest choice for Mac owners to purchase.
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Here's a post on Apple's forums by someone who claims to have gotten it to work by adding the old Leopard drivers, changing their permissions, and using the HP JetDirect option.
I don't have a C500N, so I can't verify for myself that this works, but hopefully it will help you.
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Originally Posted by Hal Itosis
>> C500N
Perhaps that particular model isn't the wisest choice for Mac owners to purchase.
It wasn't in 2006 when I bought it!
Originally Posted by CharlesS
Here's a post on Apple's forums by someone who claims to have gotten it to work by adding the old Leopard drivers, changing their permissions, and using the HP JetDirect option.
I don't have a C500N, so I can't verify for myself that this works, but hopefully it will help you.
It works. I had to use it. I was elated, but realized all our machines in the house are 32bit SL. When I buy a new iMac 27" Quad, I will want to try 64bit and I was concerned I'd be back where I was twice before.
It sounds like I'll be OK, but I guess I will just have to wait and see. Thanks for the help.
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