Ricoh D0C8, Service Manual

Page: 860 / 1647

Paper Exit and Inverter
D0CA/D0C9/D0C8/D0CB 7-108 SM
In duplex printing, after the first side of a sheet has been printed, the exit junction gate solenoid
(SOL1) turns ON, and the exit junction gate has been switched to direct the paper to the inverter
path.
And then, the paper exit clutch (CL3) turns OFF and the paper reverse clutch (CL2) turns ON, to
rotate the paper exit roller in reverse to feed the paper towards the inverter exit (see the left
illustration above).
When the trailing edge of the paper passes the paper exit sensor (S7), the machine turns OFF
the junction gate solenoid (SOL1), turns ON the paper exit clutch (CL3), and turns OFF the
reverse clutch (CL2). It switches the exit junction gate back to the original position before the
paper completely goes out of the inverter exit, and rotates the paper exit/reverse roller forward
to feed the paper to the duplex transport path.
After that, the machine starts to print the second side and feeds out the paper that is printed on
both sides to the paper exit tray.