!RICOH MP3350 
 RICOH の RPDL ドライバーの PPD を
 http://www.openprinting.org/driver/rpdl/
 から

!CANON MF4010
https://cweb.canon.jp/drv-upd/lasershot/linux/lipslxlinux.html

https://www.canon.co.uk/support/consumer_products/products/fax__multifunctionals/laser/laserbase_mf_series/i-sensys_mf4010.aspx?type=drivers&language=&os=Linux%20(32-bit)

https://wiki.debian.org/PrinterDriver/Canon/UFR-II


https://support-asia.canon-asia.com/contents/ASIA/EN/0100924010.html

! CUPS の設定
https://qiita.com/yyano/items/e0c27eda5d8e70de66e0

! Debian で lpr を使う場合には
https://debian-handbook.info/browse/ja-JP/stable/sect.config-printing.html
 cd /etc/
 mv printcap printcap.orig
 ln -s /var/run/cups/printcap ./printcap