[cups.general] very strange dot-matrix printer problem: randomly wrong print result (ghostscript-esc p2)

[张韡武]

在 2006-09-13三的 10:16 +0200，Johannes Meixner写道：
> Hello,
> 
> I assume your printer is connected via the parallel port.

Yes:) using this:

parport: PnPBIOS parport detected.
parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).

> 
> The data transfer errors may happen because of an inappropriate
> mode for your parallel port in the BIOS of your computer
> (i.e. your parallel port mode is inappropriate for your printer).
> 
> There are some bug reports about problems with the parallel port
> in our Novell/Suse Bugzilla. A good report to start is
> https://bugzilla.novell.com/show_bug.cgi?id=185135
> See also the other bug reports which are mentioned there.
> 
> Something is fishy with the parallel port stuff in the kernels
> since Suse Linux 10.0, see
> http://lists.suse.com/archive/suse-linux-e/2005-Nov/1206.html
> 
> The current workaround is to experiment with various BIOS settings
> and explicite additional settings in /etc/modprobe.conf to find a
> setup, which actually works in a particular problematic case.

This is what I haven't tried. I had the old impression that parallel
mode problem is immediate (e.g. must be easy to reproduce), but the
printer sometimes can work a day or two without wrong page.

> 
> 
> By the way:
> Your printer is a dot matrix printer.
> Do you really want to print in graphics mode with it?
> If not, you should have a look at
> http://en.opensuse.org/SDB:Using_Your_Own_Filters_to_Print_with_CUPS
> "Printing Plain ASCII Text in Printer-Specific Code"

I very much like to try it! Actually, most everything I print is plain
text (though not ASCII, it's Chinese. The printer has embed Chinese
fonts too, only need to know how to enable it), I use graphic mode only
because I need to print spreadsheets with table columns and table lines.
If there is a good application that can convert an openoffice
spreadsheet into text table (with data correctly aligned of course) then
I'll like it.

> 
> 
> Kind Regards
> Johannes Meixner
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