B-300/B-500DN
User’s Guide
Product Information
153
Rear view
a. USB connector: Connects the USB cable from your computer to the printer.
b. Ethernet connector: Connects the 10Base-T/100Base-TX cable from your computer to the
printer.
c. Duplex unit: Prints double-sided printing automatically.
d. AC inlet: Connects the power cord.
e. Rear printer cover: Covers the printing mechanism. Open only when the paper jams.
f. Vent hole: Ejects the heated air from the printer.