Ricoh c3501 printer driver for MBP OSX Mavericks10.9.5

Question

Recently, I just bought 13 inch MBP. After tried to installed the c3501 printer driver I used have, but failed. 
The New MBP can NOT print to c3501 as I did at MBA.
Please advise what I shall do to fix this?
Thank you.

Answer 1

I am going to do some combining of posts here.  I hope I can remember to get all that needs to be answered.
I found the problem was at the "RicohUserCodes.command" executing order. I shall add printer first, then execute the script to change the user code.
As greg mentions, you need to add the printer before using the script.  The script only looks at installed printers for eligible printers that have Ricoh UserCodes.
Now, my NEW MBP with Mavericks 10.9.5 can print grayscale doc.
You should now have the ability to print grayscale or color documents.  The choice is under the Printer Features section in the print window.  Many organizations will allow most users to print grayscale without a User Code.  They require a User Code only for color printing.  Other organizations require a User Code for all printing.
After reading the comments, looks like there is a patch for GPL Ghostscript 8.63. As I execute the revision 8.7.1, can I apply the same patch to fix the double side printing issue? If yes, what is the procedure to apply the patch?
No, you do not need to apply a patch.  I think you can assume that it has been incorporated into Ghsostscript 8.71.  Most of the time, all patches are incorporated into the next release.
I found a problem on printing Win-Word document. If a word document file with section breaks, the printing job will be divided. This would affect double side printing. Any update driver to fix this issue? or ...
I think that is a Word document problem only.  Does duplex work in all other cases?
I think if you search other posts in the printing forums here, you will find similar complaints.  One idea for a work around that comes to mind is to save each section as a PDF and then combine the PDFs before printing.  I find that Word doesn't collate multiple copies of a document the way other applications do.
greg sahli wrote:
Unfortunately, there is a bug that will affect two-side printing.
Read the comments here:
http://www.openprinting.org/driver/pxlcolor/
That page, like most of the OpenPrinting site, is ancient greg.  I am not sure much, if any of it, is still relavent.  How many years ago was Ghsoscript 8.63 and the CUPS PostScript driver that are mentioned on that page?  I would think that the CUPS PostScript driver has been improved since then.
In any event, I added a printer instance for the Ricoh c3105 and did a print to file selecting duplex.  The duplex was set using a PJL command.
@PJL SET DUPLEX=ON