On Mon, 17 May 2004 14:19:55 -0600 "William D. Colburn (aka Schlake)" <[EMAIL PROTECTED]> wrote:
> Has anyone tried to get a dye sub printer working with LPRng? I want > UNIX users to be able to send a jpeg via lpr, and have LPRng pop out a > print for them, and properly bill their student account for having done > so. > > The only printer I can find that might work is the Kodak 8660, since it > supports a network card, but I can't find any evidence of anyone having > done this. > > Anyone have any insight? I don't see why you couldn't do this, provided: 1. you can come up with a consistent way of translating JPEG's (or whatever graphic format you choose to support) to the native language of the printer in question 2. you can get billing information, whether that be dye/ink/toner used or pages printed, to bill the user 3. you have an accounting mechanism in place that can be accessed via command-line with a command executed by one of the LPRng/ifhp filters Regarding #1, you need to determine how the image is rendered. Does one bit in the image translate to one bit on the paper? Do you scale the image to fill the page? Do you scale the image to keep it from being chopped off the page if it doesn't otherwise fit on the page? Printing graphic images for different purposes may dictate different scaling behavior is necessary. If you need different scaling behavior, then you're going to need multiple queues to handle those modes. Regarding #2, that depends on the printer in question. Our old Tektronix Phaser 850 had decent billing information in it it, but it was much cheaper to operate. All we cared about was what type of media was printed and how many pages. More expensive printers will require more accurate billing data. My experience says you'll be wandering into SNMP status queries before you find such data available (although dye-sub printers are into an entirely new realm of devices, so who knows...). -- ============================================================================ John Perkins | University of Wisconsin-Madison Associate Researcher | Department of Computer Science [EMAIL PROTECTED] | 1210 W. Dayton St. 608-262-0438/608-262-6626 FAX | Madison, WI 53706-1685 ============================================================================ ----------------------------------------------------------------------------- YOU MUST BE A LIST MEMBER IN ORDER TO POST TO THE LPRNG MAILING LIST The address you post from MUST be your subscription address If you need help, send email to [EMAIL PROTECTED] (or lprng-requests or lprng-digest-requests) with the word 'help' in the body. For the impatient, to subscribe to a list with name LIST, send mail to [EMAIL PROTECTED] with: | example: subscribe LIST <mailaddr> | subscribe lprng-digest [EMAIL PROTECTED] unsubscribe LIST <mailaddr> | unsubscribe lprng [EMAIL PROTECTED] If you have major problems, send email to [EMAIL PROTECTED] with the word LPRNGLIST in the SUBJECT line. -----------------------------------------------------------------------------
