安装23.1和25版本后，安装打印机正常，但无法打印。应该是cpus2.4.2版本问题。应该更换为2.3.0

先卸载cups

sudo atp-get autoremove sups

在更换源

先备份sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

再编辑sudo nano /etc/apt/sources.list

Generated by deepin-installer

deb https://community-packages.deepin.com/deepin/ apricot main contrib non-free
#deb-src https://community-packages.deepin.com/deepin apricot main contrib non-free

将上面地址替换源文字

按ctrl+o 保存

然后执行更新sudo apt-get update

然后安装cups

sudo apt-get install cups

软件安装出错可以执行apt --fix-broken install

更执行sudo apt-get install cups

安装cpus2.3.0后，添加打印机后，打印正常