I want to print 16"x24" prints on 17"x25" paper. I tried to enter 17"x25" on the custom size menu but the image will not center on the paper. Most of the image is off the paper. Does anyone know how?
I have done this successfully, printing on a Mac from Photoshop CS3. One thing that is often overlooked is to choose Epson 3800 in every dialog box that offers a printer choice.
So, for a Mac driver from Photoshop CS3, in the print dialog, make sure the Epson 3800 is selected in the drop down menu for "Printer". Then click the Page Setup button.
Choose "Format For: Epson 3800" from the center drop down menu.
For Paper Size, choose "Manage Custom Sizes..."
In the Custom Page Sizes dialog, click the + (plus) sign to create a new paper size. It will be called "Untitled." Double click the name and rename it "Epson 17x25". In the boxes enter the Width as "17 in" and the height as "25 in".
In the Printer Margins choose Epson Stylus Pro 3800 from the drop down menu. The margins will default to 0.13 inches on all sides.
Click OK.
Back in the Page Setup dialog, under Paper Size, scroll all the way down and choose your new 17x25 inch paper. Choose the layout (portrait or landscape). Click Okay.
You should be back in the main print dialog window with your image showing properly in the preview. The rest of the print dialog should be the same as any print job -- select the paper, etc.
If you are printing from another application, or in Windows, you should be able to adapt these instructions. Good luck.