Ubuntu Spool服務（打印隊列）常見故障及解決方法如下：
sudo systemctl status cupssudo systemctl start cupssudo tail -f /var/log/cups/error_logsudo rm -rf /etc/cups/cupsd.confsudo cp /etc/cups/default.conf /etc/cups/cupsd.confsudo systemctl restart cupslpstat -p -dsudo apt update && sudo apt upgradelpstat -o | grep <job_id> | awk '{print $2}' | xargs -I {} cancel {}sudo chmod -R 755 /var/spool/cupsdf -h若以上方法無效，可嘗試重新安裝Cups或查看具體錯誤信息尋求進一步幫助。
