Installation Cups

Print-Server with CUPS and AirPrint - German site https://www.elektronik-kompendium.de/sites/raspberry-pi/2007081.htm

Cups Webserver will be started on RPi with port 631 https://<rpi>>:631

Installing PPD

Copying model ppd file to /usr/share/cups/model/zjiang This is the offical ppd from Zjiang (http://www.zjiang.com/en/init.php/service/driver) > see "Linux Printer Driver"

Installing Filter

Using supplied rastertozjto and copy it to /usr/lib/cups/filter

Add printer to Cups

• Use user and pwd under which Cups is running on Rpi.
• Select local printer (USB): Unknown
• Enter Name, description and place as you like it and check "Freigabe"
• Select from "Vendor"-dropdown: `Zijang``
• Select from "Modell"-dropdown: Zijang POS-80250
• Click on "add printer"
• That's it.

It will looks like:

Driver: POS-80250
Connection: usb://Unknown/Printer
Defaultconfiguration: job-sheets=none, none media=om_x-80mm-y-210mm_80.08x209.9mm sides=one-sided

Helpful commands

How to Enable Debug in CUPS

CUPS creates a few log files in the default logs directory (normally /var/log/cups/)

Enabling and disabling CUPS debug logging is done via cupsctl

Enable CUPS debug logging. cupsctl --debug-logging

Disable CUPS debug logging. cupsctl --no-debug-logging

Then restart CUPS using one of the locations:

sudo /etc/init.d/cupsys restart or sudo /etc/init.d/cups restart

Testing directly

Make sure permissions are correct: sudo chmod 0666 /dev/usb/lp0

Then try echo -e 'It Works' > /dev/usb/lp0

Papercut echo -e '\x1dVA' > /dev/usb/lp0

Further Resources

https://github.com/klirichek/zj-58

How to compile at your own

sudo apt install build-essential cmake libcups2-dev libcupsimage2-dev system-config-printer
git clone https://github.com/klirichek/zj-58.git
cd zj-58
mkdir build && cd build && cmake ..
cmake --build .
make
sudo make install

Issues

1. Paper cutting seems not to work properly.
2. and so on... :)