樹梅派列印機和掃描器伺服器

• 樹梅派作業系統

• CUPS和SANE
  https://wiki.archlinux.org/title/CUPS

L3110-主要依照這篇
https://antivirus.com/2021/05/26/raspberry-pi-project-how-to-convert-a-usb-all-in-one-printer-to-a-wireless-printer/

• 加使用者看這一篇–Add Printer foribbiden排除
  https://unix.stackexchange.com/questions/235477/cups-add-printer-page-returns-forbidden-on-web-interface

• 印不出來除錯

  tail -n 100 -f /var/log/cups/error_log

  https://wiki.archlinux.org/title/CUPS/Troubleshooting

• 安裝 printer-driver-escpr、hplip
  列印的時候出現以下錯誤，而且job一直是stopped

  File \"/usr/lib/cups/filter/epson-escpr-wrapper\" not available: No such file or directory

下面方法解決問題並且成功列印測試頁。

sudo apt install printer-driver-escpr #安裝後解決
sudo apt install hplip #下次測試不安裝可不可以順利運作(epson)

https://forums.raspberrypi.com/viewtopic.php?t=225739

local列印成功後，設定網路

• 開啟網路管理服務以及nmtui

  systemctl start NetworkManager
  sudo nmtui

不要設定AllowUser以免權限不足

如果發現錯誤，請在網頁AllowUser留白並且儲存

Returning IPP client-error-not-authorized for Create-Job (ipps://192.168.50.169:631/printers/epson_l3110_series) from 192.168.50.9.

https://askubuntu.com/a/708217

掃描器

使用SANE:Setting up a Raspberry Pi Scanner Server using SANE

安裝必要軟體後，檢查SANE能不能找到你的掃描器，如果不行就必須手動設定，方法如官網Helpful commands for Troubleshooting sane

網頁板掃描頁面

https://github.com/sbs20/scanservjs/tree/master

安裝後出現以下說明

Created symlink /etc/systemd/system/multi-user.target.wants/scanservjs.service → /etc/systemd/system/scanservjs.service.

scanservjs installed and running
  http://127.0.0.1:8080

If you encounter problems when running, try
  sudo journalctl -e -u scanservjs

桌面版軟體

安裝後在windows上面安裝前端軟體SaneTwain

其他參考:
https://ubuntu.com/server/docs/service-cups

airprint
https://www.developer.com/mobile/cups-and-raspberry-pi-airprinting/

https://unix.stackexchange.com/questions/394687/printer-drivers-required-if-cups-is-installed