Printing postcards double sided

Almost all printers now a days offer the printing on either side. This is set up in the Printer Preferences.
Don

You can get 4" x 6" Kodak Picture Paper for ink jet printers. It has soft gloss on both sides. Should work on any ink jet printer. I've printed many pics on this paper using an i960 Canon color printer. For a bit higher quality prints, I use 4" x 6" Canon Photo Paper Plus Glossy paper. It's slightly thicker than the Kodak paper, and has gloss on only one side (white on back). Most any brand of paper will work on any printer.

FYI Here's the Postcard Standards:

* Minimum Allowable Postcard Size: 3.5 x 5 Inches
If the width is less than 5 inches or the height is less than 3.5 inches the USPS will NOT mail your postcard.
* Maximum Allowable Postcard Size: 4.25 x 6 Inches
If the width is greater than 6 inches or the height is greater than 4.25 inches, the postcard must be mailed as a letter, higher rate and all.
* Minimum Thickness: .007 Inches
Any mail less than the minimum is considered Non-Mailable and the USPS will NOT deliver it.
* Maximum Thickness: .25 inches
Exceeding the maximum puts the mail piece into a different mail class, called a Parcel.
* Intermediate Sizes are Allowable
A 4 x 5.5 inch postcard is mailable at the postcard rate. As long as a mail piece meets the size, thickness, weight and aspect ratio requirements above, it can be mailed as a postcard.
* Minimum Thickness: .007 Inches
* Maximum Thickness: .25 inches
* Space reserved for USPS Barcode and Endorsements

 Cheers, Tom

Hi, Stephen. I don't see that your choice of printer should be affected at all by your two-sided postcard-printing requirement. Any printer will print on both sides of any piece of paper, if you feed the paper through it twice and have two different files to print on its respective sides. This is exactly the same process as printing two different files on two different kinds of paper using two different print settings, except that in your case the two different paper types are opposite sides of the same sheet, necessitating a manual intervention with any printer that I know of. If you want the whole process automated, I think you're out of luck, unless you find a software application custom-made for the purpose. But even then, which printer you choose shouldn't matter. Choose the printer that gives you the most satisfactory photo prints for the money you can spend: whatever you want to print in B&W on the other side of your cards will be a distant second in importance, I should think.