I juste made additional testing under MS Windows, and the problem happens here too. So I cannot print double-sided reliably at all with this printer.
Eric Buist a écrit : > Hello, > I experience serious problems when I print in double-sided with my HP > Deskjet 6940 printer. I am using Fedora Core 5 (with HPLIP) and CUPS. > I am often printing PDF files using KPDF. > First, I do not have the optional duplexing unit, because I cannot > obtain it at my local store. I would really like to have this > accessory, because it would solve my problem completely, but for now, > I have no other choice than relying on the classical and manual > procedure: print the odd pages, reload the printed pages upside down, > and print the even pages. This worked for all my previous printers. > The only pitfall with the HP Deskjet is to find the proper way to > rotate the pages, but I finally got that right after a lot of time and > wasted paper. > > But, with this HP Deskjet 6940, it does not work at all! When I print > single-sided documents or the odd pages of a double-sided work, I have > absolutely no problem. The printer prints the pages completely, > nicely, and fastly, and it never skips pages when loading paper. This > makes me think that there is no hardware problem. However, when the > time comes to print the back sides, the printer seems to get > completely mixed up, and starts skipping pages when loading paper. > This results in totally messed up page alignment (page 4 back of page > 5, for example). It seems that the printer "reads" the text on the > printed pages, and gets crazy. If I use the default settings, the > printer prints one back page, always skips many pages, and prints > other back sides, so I cannot print double-sided at all! If I set the > paper source to Manual Feeder, this USUALLY works, but sometimes, the > printer prints a page partially, or skips a page, and of course > everything gets screwed up again. So the only reliable way I can think > about to solve the problem is to manually load one page at a time, > which is time-consumming and annoying. > I tried soime times to print documents with MS Windows, and the > problem never happened. I cannot affirm it never happens, it would > require more testing for taht. But if this was a hardware problem, I > would always get skipped or partially printed pages, even when I print > single-sided. > Is there any way to configure the printer driver to get reliable > double-sided printing, or is the duplexing unit absolutely essential? > In the latter case, where can I obtain such a duplexing unit? Is it > available in Canada? > Thanks > Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ HPLIP-Help mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/hplip-help
