On 02/05/2016 10:22 PM, Keith Nuttle wrote:


As a follow-up to my problem testing printers, I tried things again. The
files were re-created and put on an msdos flash drive. When the usb
drive is placed in the slot of the 8610 (or Epson WE-3640), the devices
recognize the number of files on the drive, but claim they are corrupt
and won't print them. The sales person tried the drive on two different
computers, and the files were fine. Any ideas?

Dave,
I did some research for you on the Epson 3640

This is from the manual
http://files.support.epson.com/docid/cpd3/cpd39368.pdf

Quote:
Memory Card and USB Device File Specifications
You can use memory cards and USB devices with your product containing
files that meet these specifications.
File format JPEG with the Exif version 2.3 standard
TIFF 6.0-compliant uncompressed images: RGB full-color or binary
(not CCITT-encoded)
UnQuote:

As you can see the only one of your file fomats recognized by the
printer from a USB drive, is the JPG file format

Your PDF documents will appear as corupt files, as you learned.

As I said my HP 5740 will only recognize the jpg format.

As you learned the sales people know little about the products they are
selling.

Keith,

When I re-did things, I created only jpg's after reading about the
problem on the HP forums. I also made it a flat file system - all files
on the root. Still no-go. The only thing I can think of (and will try
next) is that the files were created under Linux. I have never had a
problem sharing files created under Linux and sharing the files with Win
95, Win 7, or Apple, but this may be different.

A little off topic, but when will printer manufacturers get a clue and
make all printers that accept jpg's, tiff, png, pdf, open document
(LibreOffice), and MS Office files natively? This would eliminate the
need for printer drivers. Oh well.

Thanks for the help though!!!

Dave,