Firmware archive for the Ricoh SP 100SU multifunction laser printer, 1.10 MB in RAR format. The name lists no version, chip type or region. Printer firmware like this is typically used to reprogram the main board memory after a failed update, or to clear certain error states. Check the archive contents and any notes on chip type before use. Read and keep the original memory contents with a programmer, since counter and setting data may be lost when 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 →