树莓派连接网络打印机

1.  安装cups
sudo apt-get update
sudo apt-get install cups --fix-missing
若安装遇到问题可以尝试执行：
sudo apt-get update --fix-missing

2. 将树莓派默认的用户加入lpadmin组(默认用户名为pi)
sudo usermod -a -G lpadmin pi

3. 配置
sudo cp /etc/cups/cupsd.conf /etc/cups/cupsd.conf.bak
sudo vi /etc/cups/cusd.conf

# Only listen for connections from the local machine.
Listen 631
Listen /var/run/cups/cups.sock

# Show shared printers on the local network.
Browsing On
BrowseLocalProtocols dnssd

# Default authentication type, when authentication is required...
DefaultAuthType Basic

# Web interface setting...
WebInterface Yes

# Restrict access to the server...
<Location />
  Order allow,deny
  Allow from @LOCAL
</Location>

# Restrict access to the admin pages...
<Location /admin>
  Order allow,deny
  Allow from @LOCAL
</Location>

# Restrict access to configuration files...
<Location /admin/conf>
  AuthType Default
  Require user @SYSTEM
  Order allow,deny
</Location>

# Restrict access to log files...
<Location /admin/log>
  AuthType Default
  Require user @SYSTEM
  Order allow,deny
  Allow from @LOCAL
</Location>

红色为修改部分，修改后保存文件。

4. 重启服务sudo service cups start

5. 树莓派安装HP打印机驱动
sudo apt-get install hplip

6.登录后台管理页面，需要用树莓派的用户名和密码

https://10.230.1.205:631

如果在如下图所示的页面有显示打印机，说明可以正确使用了，否则添加一下打印机。

添加打印机

6. 打印测试lp -d HP_LaserJet_Pro_MFP_M226dn__3AACAA_ print.txt