I'm experiencing this right now. I can print single sided pages to the our demo Ricoh MP C4504ex. However when I select booklet mode, or duplex mode, the print job is never making it to the MP C4504. I keep getting a "print failure" notification on my pc. Anyone else seen this?
I believe I ran into a similar experience when printing to an MP C4504EX system, and the paper drawer was set to "Driver Command" instead of "Machine Settings" under "Printer Features", "System" "Tray Paper Settings" menu. WHen we set it back to "Machine Settings" the print job worked.
Thanx Kena I will give this a try today