On Mon, 27 Oct 2008, Lisa Kachold wrote: > > "The Zen of Troubleshooting {Grasshopper}"The error is the answer! > > "BJ210 Printer 'BJ210' may not be connected"Let's go look at each layer of a print connection: > > > A) Devices: > > How are you connecting your printer? It's a parallel port printer connected via a parallel port to USB adapter cable. > > 1) If your printer is Parallel port connected: > > If the printer is capable of direct ASCII text printing, the following > command as root should print a single page with the word > Hello on it: > > $ echo -en "\rHello\r\f" >/dev/lp0 > > 2) via USB: > > $ dmesg | tail -n 50 > > Do you see your printer? The thing that caught my eye was "lp: driver loaded but no devices found". > Do you see other usb devices? 30.901440] usbcore: registered new interface driver cdc_acm [ 30.901504] /build/buildd/linux-2.6.24/drivers/usb/class/cdc-acm.c: v0.25:USB Abstract Control Model driver for USB modems and ISDN adapters [ 30.968766] usblp0: USB Bidirectional printer dev 4 if 0 alt 1 proto 2 vid 0x067B pid 0x2305 (conflicts with "no devices found"?) [ 30.968854] usbcore: registered new interface driver usblp > If the printer is capable of direct ASCII text printing, the following > command as root should print a single page with the word > Hello on it: > > $ echo -en "\rHello\r\f" >/dev/usb/lp0---although you might not always see it print if it's not ASCII--- This is weird: [holtzm@localhost]~$ echo -en "\rHello\r\f" >/dev/usb/lp0 bash: /dev/usb/lp0: Permission denied [holtzm@localhost]~$ sudo echo -en "\rHello\r\f" >/dev/usb/lp0 bash: /dev/usb/lp0: Permission denied Not even with sudo! [holtzm@localhost]~$ ls -l /dev/usb/lp0 crw-rw---- 1 root lp 180, 0 2008-10-28 10:25 /dev/usb/lp0 > > $ cat /proc/bus/usb/devices /proc/bus doesn't exist in Ubuntu, however there are a load of usb directories in /lib/modules and /lib/linux-restricted-modules > > If you are not successful with these commands, terminate all processes > that use /dev/usb/lp0. Use lsmod to check which USB > modules are loaded (usb-uhci, usb-ohci, or uhci) > and how they depend on each other. For instance, the following entry > in the output of lsmod shows that the module usbcore > is being used by modules printer and usb-uhci: > B) Cups and Networking > > Is the cupsd process running? > > $ tail /var/log/cups/error_log > $ ps -ef |grep cup [holtzm@localhost]~$ ps -ef |grep cup root 5532 1 0 09:59 ? 00:00:00 /usr/sbin/cupsd > > Is the port open or is something else in the way? > > $ netstat -anp |grep 631 [holtzm@localhost]~$ sudo netstat -anp |grep 631 [sudo] password for holtzm: tcp 0 0 127.0.1.1:631 0.0.0.0:* LISTEN 5532/cupsd tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 5532/cupsd > > > And VERIFY that the POWER is ON on your PRINTER! According to my original post: >> In case anyone wonders, the printer powers up, the physical connections >> are tight, and the requisite noises are heard when turning the power on >> or off. Having said all of the above (which pertains to Ubuntu ), as of this morning Debian began co-operating and I was able to print documents. I made no changes to anything.It must have been the goat I sacrificed last night. Ubuntu, however, continues to thumb it's nose at me. I think it's holding out for a virgin but I can't find any. Many thanks for the detailed reply -- Bob Holtzman Your mail is being read by tight lipped Homeland Security agents who fail to see the humor in Doctor Strangelove --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss