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KX-MC6020HX
6.20.4.8.2. Duplex Printing Mode (Paper Switchback)
The switchback solenoid is turned off by the time the top edge of paper passes by the paper jam sensor on the fuser unit. The
switching lever engages with the switching gear-A, and the rotation of rotation switching gear-A is locked. As a result, the rotation
from the BK motor is transmitted to the paper exit roller in order of numbers (1 - 7) through the double teeth gear. The arrows indi-
cate the rotation direction of each gears.
This advances the sheet of paper between the paper exit roller and switchback pinch roller. The paper is fed to the output tray by
the paper exit roller and pinch roller. At the proper time, the switchback solenoid is turned on. The rotation switching gear-B is
locked by the switching lever, and the rotation from the BK motor is transmitted to the paper exit roller in order of numbers (1 - 7)
through the double teeth gear. As a result, the paper exit roller rotates in the reverse direction. (see figure-2) The paper is fed to the
automatic duplex rollers in the optional Automatic Duplex Unit through the paper guides along the paper path. Further, the paper is
fed to the registration roller by the automatic duplex rollers and advanced to the fuser unit. After fusing, the paper arrives the paper
exit roller and is fed to the output tray by the paper exit roller.
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