Tim, Black ink is not used when printing on photo media for reasons relating to the media and ink chemistry. Black tones are generated as composite black by using C, M and Y inks. This does not make the black photo media any less black. You can select photo print modes in cups, either the 1200 or 600 dpi photo modes. If you are using Gimp, you may have to print in two steps, first save as a postscript file and then print the resulting ps file. see here for explanation http://hplip.sourceforge.net/howtos/printing.html#gimp Raghu
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tim Southerwood Sent: Tuesday, February 27, 2007 4:48 AM To: [email protected] Subject: [Hplip-help] C6180 - printing on phot paper, colours wrong Hi, I'm running hplip 1.6.10 on debian to drive a networked C6180 printer/scanner using the HP-PhotoSmart_C6100-hpijs.ppd file. All is well, apart from printing to glossy photo paper. When doing so, and selecting photo paper output from the lower (A4) tray and full colour + black I am getting a picture that looks like all the black is missing. Here's an example of what's happening. http://www.infomax.co.uk/hp/Calibrate-PhotoPaper.jpg However, if I print on plain A4 cheap paper, it works fine - eg: http://www.infomax.co.uk/hp/Calibrate-PlainPaper.jpg This rather goes against my theory that the black jets are clogged (printer is only 3 weeks old and I have run a clean-jets program and a colour-calibration). The JPEG I was printing from (via the Gimp) is here: http://www.infomax.co.uk/hp/Calibrate-Original.jpg I repeated the test, loading the original JPEG onto a CF card and printing locally on the printer (PhotoExpress). Similar result - skewed colours on photo paper (black missing AFAICS), fine on plain A4. This seems to point towards a faulty printer, but I would like to run it by folks here just in case it's one of those "you twit - you didn't enable <blah>" type problems. Returning the printer is a hassle unless it's really broken and HP's indian helpdesk isn't much use, alas... I'm also interested if anyone's seen this before. BTW - fine piece of work, HPLIP - I was up and running in minutes and xsane interfaces beautifully to the scanner component - including the ADF - I am most impressed - thanks to all those who put effort into this project. Many thanks, Tim ------------------------------------------------------------------------ - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDE V _______________________________________________ HPLIP-Help mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/hplip-help ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ HPLIP-Help mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/hplip-help
