问题现象：添加打印机时报错“server-error-internal-error”
解决方法：
sudo apt install cups cups-filters printer-driver-cups-pdf printer-driver-gutenprint printer-driver-pnm2ppa这一行命令复制粘贴到终端上回车，提示输入密码，盲敲就行（敲密码时是看不见的，敲完回车就行），执行完重新连接下打印机看看
如果出现
sudo:无法解析主机：localhost.localdomain:未知的名称或服务
xxxxxx……
下列软件包有未满足的依赖关系：
xxxxxx……
单独输入以下试试，
sudo apt install printer-driver-cups-pdf sudo apt install printer-driver-gutenprint如果还不行就复制下面脚本并保存
#!/bin/bash
# 990-2203update1切源并升级
sudo chmod o=rwx /etc/apt/sources.list
sudo echo "deb https://archive.kylinos.cn/kylin/KYLIN-ALL .test-10.1-wayland-2203-updates main universe restricted multiverse" > /etc/apt/sources.list
sudo echo "deb https://archive.kylinos.cn/kylin/KYLIN-ALL .test-10.1-kirin990-feature main" >> /etc/apt/sources.list
sudo echo "deb https://archive2.kylinos.cn/deb/kylin/production/PART-10_1-kirin9a0/custom/partner/10_1-kirin9a0 default all" >> /etc/apt/sources.list
sudo chattr +i /etc/apt/sources.list
sudo apt update
list=`cat /etc/apt/sources.list`
echo $list
sudo apt -y dist-upgrade
sudo apt install -y -f
sudo apt install ukui-greeter-wayland ukui-session-wayland
sudo chattr -i /etc/apt/sources.list
sudo chmod o=r /etc/apt/sources.list
dpkg -l |grep -v ii
read -n1 -r -p "请按任意键退出" key
exit赋予执行权限
sudo chmod -x 脚本名.sh在终端执行脚本
bash 脚本名.sh加载到2203得源地址后ctrl +c 中断掉，然后重新安装
sudo apt install cups cups-filters printer-driver-cups-pdf printer-driver-gutenprint printer-driver-pnm2ppa