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--- eop:office_electronics:printers_and_scanners [2021/12/30 19:14] – created io55admin
+++ eop:office_electronics:printers_and_scanners [2022/09/23 13:56] (current) – io55admin
@@ Line 1: / Line 1: @@
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+====== Printers and Scanners ======
+Devices that print, scan, and copy. Most of these will run some ARM or MIPS chip, paired with a custom OS or a Linux-based OS.
+===== Canon Pixmas =====
+==== Operating Systems ====
+=== DryOS ===
+>now to access the console(s) of MX925
+This is what runs stock on the printer. However, they have been used to exploit this DryOS, as it also runs stock on Canon P&S cameras. With some internal hacking, one can access the DryOS shell and more effectively interface with the device. This may be what led to the Doom hack immediately below…
+https://chdk.fandom.com/wiki/DryOS_PIXMA_Printer_Shell
+==== Other ====
+=== Doom hack ===
+Almost nothing is described about this. There is not even a specific model number for the printer, but nonetheless, this is Doom running on a Canon Pixma. Colors are off, but the creator is very aware of that.
+https://www.youtube.com/watch?v=NPWi5yJK3zo
+https://www.youtube.com/watch?v=qa2tJQTJkCw (demonstrative talk)
+===== Canon ScanFront 220p =====
+==== Operating Systems ====
+=== FreeDOS (running Doom) ===
+>You can attach a keyboard, mouse and USB-Drive and boot the scanner to FreeDOS
+Sounds like one of the easiest printer hack procedures out there. Probably a good target to find at a thrift store or something - who knows what else this thing can do if running Doom simply takes plugging in a few things.
+https://www.reddit.com/r/nextfuckinglevel/comments/juaa61/playing_doom_on_a_15yearold_scanner/gcaoa3c/
+===== Epson Artisan 700/800 =====
+==== Operating Systems ====
+=== UART shell (Linux?) ===
+>Selecting '@' will allow you run commands as root on the printer.
+It’s possible to obtain a UART shell on these printers. Within this shell, one can enable root commands by simply selecting an option.
+https://www.exploitee.rs/index.php/Epson_Artisan_700/800
+===== Lexmark Pro 805 =====
+==== Operating Systems (ARM) ====
+//see below//
+==== Other ====
+=== Firmware vulnerability ===
+>the LCD board is a 'fully' independent system, with ARM processor
+Attempts by a forum poster to hack this printer’s firmware. It runs off of an ARM processor, unsurprisingly. Never got past a baud rate bottleneck, probably due to laziness of user.
+https://www.eevblog.com/forum/projects/lexmark-printer-hacking/
+===== Ricoh MP 2555 =====
+==== Operating Systems ====
+=== Telnet and more? ===
+>Most Ricoh network capable printers include Telnet; that is used by Ricoh for maintenance
+For diagnostic purposes, but they’re still there in a functional capacity.
+https://luke.geek.nz/misc/how-to-access-the-ricoh-printer-maintenance-shell/