after I've set up printing support according to https://openwrt.org/docs/guide-user/services/print_server/p910nd.server printing worked just fine for one or two days. Now I get the error "Processing - The printer is not responding." sending a printing job.
Some setup information:
- OpenWRT/LEDE version:
Reboot (17.01.4, r3560-79f57e422d)(TP-Link tl-wr842nd)
# cat /etc/config/p910nd config p910nd option device '/dev/usb/lp0' option port '0' option bidirectional '1' option enabled '1' option bind '192.168.1.1'
I just noticed:
# dmesg ... [515869.259726] usb 1-1: new high-speed USB device number 7 using ehci-platform [515869.740207] usblp 1-1:1.1: usblp0: USB Bidirectional printer dev 7 if 1 alt 0 proto 2 vid 0x04B8 pid 0x08A8 [516572.178066] usb 1-1: USB disconnect, device number 7 [516572.184089] usblp0: removed [516576.068380] usb 1-1: new high-speed USB device number 8 using ehci-platform [516576.387619] usblp 1-1:1.1: usblp0: USB Bidirectional printer dev 8 if 1 alt 0 proto 2 vid 0x04B8 pid 0x08A8
...after unplugging the printer. Is it a problem that the device number is counting up?