Oki ES 3640e MFP - Manual (Page 19)

ES3640e MFP User’s Guide
MFP Overview > 19
15. Network interface connector
16. Parallel interface connector
17. USB interface connector
NOTE
The three connectors at 17a are for printer unit to scanner unit
interconnection.
18. Power connector
19. Ventilation openings
20. Image drum cartridge and toner cartridge (Cyan)
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17a