Make CUPS work with CITIZEN Printer

#0 - Add the printer to CUPS with default settings (don't change anything)

 

#1

create udev rule in /etc/udev/rules.d

SUBSYSTEM=="usb", ATTR{idVendor}=="1d90", ATTR{idProduct}=="2037", MODE="0777", GROUP="lp", SYMLINK+="citizen_printer"

https://forums.raspberrypi.com/viewtopic.php?t=333307

 

#2

I know this thread is very old, but at least for internet history I will post what worked for me:
in /etc/modprobe.d/ in blacklist.conf add a new row: 

blacklist usblp
then reboot and printer finally started working!


#lists usb devices
lsusb

#lpstat
lpstat -p -d

 

# Logs locations

 

/var/log/cups/error_log
 
sudo grep -i usb /var/log/syslog 

 or 

/var/log/kern.log

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