Hello Steve,
In checking your symptom to my iP5200R using the Canon driver (which is now a version 10.30.3.0 after the recent
Canon v2.3 Update), the Duplex Printing & Margin menu has an Automatic Duplex Printing checkbox. With this enabled, only the printed side is feed through the printer. This was using the About Stacks.pdf included with Snow Leopard and printing from Preview.
I then tested again, after changing my printer queue to use the Gutenprint driver for the iP5200 (Canon PIXMA iP5200 - Gutenprint v5.2.3). But again, with only the Layout - Two Sided option selected, the document only printed on one side without the second side being loaded.
For your jobs to be feeding the reverse (blank) side first and then flipping to print the front side, it does sound like you have an additional setting enabled or you are using the wrong driver or an application which performs this function. If this symptom occurs from all applications, then you can concentrate on it being a driver issue. Note also that if you are using a preset from Leopard, I would stop using it and just use the menus in the driver until you get this resolved. Then you can create a new preset for your duplex printing.
With regards to your printer driver, certainly your Get Info showing 6.3 does not sound correct, but I wonder if you are looking elsewhere to the norm to check this. To check the printer driver version, if you open Print & Fax and select the printer in the list, you can then press the Options & Supplies button and select the General tab. This will show the driver version for the iP4000, which at a minimum would be v10.19 which was included with Snow Leopard 10.6.0.
So, if you are using the Canon driver but it is using something less than v10.30, then I suggest you download and install the v2.3 Canon update above and try printing just using the Canon menus.
Pahu
Message was edited by: PAHU