a. Automatic Document Feeder (ADF)
b. Paper support
c. Edge guides
d. Error light
e. Ready light
f.  Start button
g.  power button
h. scanner transportation lock

a. underside of ADF
b. document table
c. carriage home position

a. DC inlet
b. USB interface connector
c. ADF cable (do not disconnect)
d. optional interface card slot