Does anyone know how to start the Epson Stylus C44?
I know I need to run devu-ohci and devu-prn, and I saw
the /dev/usb and /dev/usbpar0 popped-up. But I could not
verify are they ‘actually’ setting up the driver properly.
I tried to run lpd with the following /etc/printcap
I tried to print some file like
a2ps -Pqueue1 /etc/printcap,
but nothing get printted, and it seems that the print
job was done immediately. ( a little bit like printing to /dev/null )
you don’t normally need lpd in QNX, unless you are trying to setup a network printer. QNX uses its own print spooler. Check the discussion in this thread: openqnx.com/PNphpBB2-viewtopic-t1635-.html
to verify, you can do
cat >/dev/usbpar0
hello ,this is a text
ctrl+L
(as mentioned in above thread).
You can then start the spooler with
spooler -d/dev/usbpar0 -c epson.cfg -nMyUSBPRN
Now you should be able to print from your GUI applications.
I tried to do cat > /dev/usbpar0 without starting lpd, but there is no respond from the printer. And even if I start the spooler, it seems the print data just fall straight through the spooler and the printer is still doing nothing.
How do i check whether is there a communication lost on the path from /dev/usbpar0 → /dev/usb → printer?
If using ‘cat’ to send text directly to the printer doesn’t work, there is no need to try spooler or lpd.
Have you disabled Legacy USB in the BIOS? What does “usb -vv” and “pci -vv” say? If you have multiple USB controllers, you will need to start a driver for each of them. To do this you need to use the ‘-p’ option and the ‘-n’ option.
Not all printers accept ascii text - although most do. It is possible that this printer can’t print text and that is an invalid test. I suppose you could check the printer manual, although I doubt it would say. You could also try copying text in a windows command window. The syntax is something like ‘copy con: lpt:’ although it has been a long time since I tried that (and since you aren’t on the printer port (lpt) I don’t know the correct device name).
Anyway, I have seen a few printers that can’t print ascii text, so don’t get off on a tangent unless you know your printer can.
Thanks for the advice. I didn’t know that there were two usb controllers on my machine.
But after starting /dev/usb0 and /dev/usb1 seperately and properly stacking /dev/usbpar0 on top of /dev/usb0, I still cannot print anything from the printer by sending to /dev/usbpar0. The data going into /dev/usbpar0 just vanishes…
Also tried to start the qnx spooler and print from there, same as before, data just fall through the spooler and print in no time so nothing get queued in the spooler.
