Sane 将检测网络扫描仪并始终显示此消息：Device busy。
我已尝试重新启动机器和扫描仪。
$ scanimage
Output format is not set, using pnm as a default.
scanimage: open of device escl:https://172.18.14.250:443 failed: Device busy
$ scanimage -L
device `escl:https://172.18.14.250:443' is a ESCL RICOH SP 377SFNwX (cf3d23) SSL flatbed scanner
device `escl:http://172.18.14.250:631' is a ESCL RICOH SP 377SFNwX (cf3d23) flatbed scanner
Ubuntu 20.04
使用以下方式安装软件包：
sudo apt install sane libsane libsane-common libsane-hpaio
可能出了什么问题？