BIOS or firmware file for a Canon 2450 printer, packed in a compact RAR archive of only 46 KB. The small size suggests a serial EEPROM image rather than a full firmware flash, though the name does not say which chip it comes from. Technicians use such images to restore settings or clear faults stored on the controller board. Identify the memory chip on the PCB, read and back up its current contents with a programmer, and make sure the file size matches its capacity before writing.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →