Messages in this thread | | | Date | Sun, 28 Mar 2004 20:09:56 +0200 | From | DervishD <> | Subject | Re: Problems with my parport (and printer) |
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Hi Jan :)
* Jan-Benedict Glaw <jbglaw@lug-owl.de> dixit: > > kernel: parport0: PC-style at 0x378 (0x778), irq 7 [PCSPP,TRISTATE] > > kernel: parport0: Printer, Lexmark International Lexmark Optra E312 > > kernel: lp0: using parport0 (interrupt-driven). > > kernel: lp0: console ready > > It works ok, BTW... The problem is that, when the printer is > > switched of and I try to print something, the print command just > > blocks, no error, no messages, nothing. I use a shell function to > First of all, if you want to do normal printing, you shouldn't switch on > LP console. From there on, all kernel debug output (as seen in > /var/log/kern.log and outputted with "dmesg") would be sent to the > printer, what isn't exactly what you want to have.
That's right, but LP console must be activated at boot time (or at module-loading time) AFAIK, so this is not the problem.
> > Why this operation doesn't fail? IMHO, it should fail with > > ENODEV, because parport can work (the parallel port is there...), but > > lp shouldn't (the printer is switched off...). > Another gotcha may be that your printer doesn't easily accept commands. > Many printers don't do that nowadays. Some are dumb GDI-Printerts > (Windows-only, that is...), some nees specific wake-up sequences.
This printer (Lexmark Optra E312) is not a winprinter, and the problem is not related to commands. The printer works fine, I have no problems with that. My problem arises when the printer is offline: when I send data to the printer and it is not connected, the command used to send that data doesn't fail, just waits forever...
Thanks for your answer anyway :) Really I'm not familiar with the parallel port :(
Raúl Núñez de Arenas Coronado
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