The Epson 4900 is intended to accept 8x10 as the smallest paper size. Running some tests on the Red River greeting card 7x10 media, the 4900's rear manual feed will accept the 7" paper dimension, so long as the Paper Size Check is turned off. This particular 7x10 paper size is intended to make a 5x7 inch card, after being folded in half. In printing oddly, the print head moves back and forth across the the entire 7x10 sheet, even though there is image content only only a small region of an otherwise blank document. The print head lays ink down only in the expected areas, but only after these "ghost movements" over the entire 7x10 sheet. I am certain there is no hidden image content, as this PSD has a transparent BG. Printing is from LR4. I've never observed this printhead behavior when printing on "normal" paper sizes, and with Paper Size Check turned on. The down side is that printing time is needlessly doubled or quadrupled, depending on the amount of blank area. Any ideas about these false printhead movements? Epson tech support could not explain this printhead behavior.
Do any of you have have any experience creating a shim in the paper cassette tray, to fool the paper transport into thinking the loaded paper is larger than it actually is? In this case, you'll note in the attached image that the movable width partition's minimum dimension accommodates 8" width, rather than the 7" I'm hoping for. So I'd like to simulate a partition at the 7" width mark, rather the the 8" width mark.
For those printing greeting cards on the 4900, or 4000 series, are you struggling like I am with these small media sizes, or are you just using 8.5 x 11 media, and subsequently cutting down the prints, or even mailing out larger cards?