Install SANE [1].
sudo apt-get install sane sane-utils libsane-extras xsane
The Dell 1135n Multifunction Mono Laser Printer is a rebranded Samsung SCX-4623F [2]. For connecting over internet [3], modify /etc/sane.d/xerox_mfp.conf and add line with your ip address.
#Dell MFP Laser Printer 1135n tcp 192.168.1.60 9400
For connecting over USB add the vendor id (0x413c) and product id (0x5318) to /etc/sane.d/xerox_mfp.conf.
#Dell MFP Laser Printer 1135n usb 0x413c 0x5318
The automatic document feeder works, you need to switch to multipage and specify the number of pages.
Install simple-scan.
sudo apt-get install simple-scan
[1] Ubuntu Wiki Contributors. sane. https://help.ubuntu.com/community/sane, October 2020. Accessed: 2022-11-26.
[2] Niall Magennis. Dell 1135n review: Dell 1135n. https://www.cnet.com/reviews/dell-1135n-review/, October 2011. Accessed: 2022-11-26.
[3] Juan Jimenez. How do i get ubuntu 18 to ”see” my dell 1135n mfp’s scanner? https://askubuntu.com/a/1081694, October 2018. Accessed: 2022-11-26.