Unable to duplex print Mac OsX Snow Leopard on CM2320 fxi MFP ColorLaserjet [ Edited ]

[mjtlee]

I have been unable to get the printer to duplex using any of my Macs, whether networked or directly connected.  Reading through stuff on the web, to date I have done the following:

1. Used UP uninstaller to remove all HP printers

2. Removed all refernce to HP in the following:

/Library/Printers

/Library/Receipts

/Library/Frameworks

3. Removed all printers from the MacOsX printer list

Restarted the printer and Mac.  Downloaded the fresh Full MacOsX install from HP; and, updated the drivers using Software update.  Of course, the following are enabled: duplexing in both the driver options and printer webpage; and I am setting the duplex function when I print.  It will not duplex from any application e.g. from Microsoft Office or native app.

I know the printer duplexes as it does it easily from Windows XP or when I ask the printer for a printed status report.

If anyone has any tips, greatfully received!  John

[andmalc]

Hi John,

Your post states that you're enabling duplexing when printing.  The way to do this has changed since previous Mac versions - here's the HP document on duplexing under 10.6 that may help.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01935823&tmp_track_link=ot_recdoc/c00294482/en_...:3&lc=en&dlc=en&cc=us

[mjtlee]

Thanks, andmalc, your response is much appreciated.  As mentioned, I have acted on all the steps in the link you sent and the problem is not corrected.  I have another HP color duplex printer which does not have the problem that I am having with my new CM2320.  John

[Deanzod]

If you try printing from a web page from firefox for example, it should show the double sided option as above. If you are printing from something like adobe acrobat, after clicking print, you need to select "Layout" from the dropdown menu (which is probably currently set at "Copies & Pages". From the layout part you can choose two-sided printing.

Hope that helps

[mjtlee]

Thanks for the suggestion.  The problem is not a setting but is actually the driver.  Changing backwards to the last driver cures the dukexing problem.  This has to be done with a PC and not a Mac as if you do it with a Mac, then you get a message that your driver is the latest.

Hopes this helps someone.  I am really happy I can now duplex.  Clearly, this is an HP problem.  John

[emjaywap]

so, what exactly is now the solution of the problem? i'm having the same issue with the latest driver, and also with the one delivered with the printer. I quite don't get, how I should change backwards to the latest driver with a PC, 'cause the problem occurs only on the Mac? Which driver are you using on the Mac?

thanks for a reply  

[mjtlee]

You need to use a PC to get the previous firmware for the printer.  I found this following a Google search.  Then things will work.  you can't do this with a Mac because you get an error saying you already have a more up-to-dte version.

I did it using XP on Parallels.  Good luck.

[emjaywap]

Thank you so much! I went back to version 20090209 using windows xp, that actually fixes the problem. I read somewhere that there is a beta firmware out which should fix it too, so it should be fine with the next firmware release. Until then, the old one works fine:

->  http://dl.dropbox.com/u/65130/CM2320fxi_FW_Update-20090209.exe

[vub7hx3Q6q]

Thank you very much for the tips it work perfectly.

Now let's wait for the next Firmware!

[hallewis]

And it still doesn't work on mine (Snow Leopard + CM2320fxi); the two sided option appears, but does no good. The new firmware got installed last week, so it must be the latest, and that is when the duplex option vanished. Sure would like to see this problem solved, and i agree that it is entirely an HP problem; whether the firmware or the software I don't know.

Hal