Paper Path 3: Feed Paper To Bins 2 Through 10 - Lexmark W820 Service Manual

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Paper Path 3: Feed Paper to Bins 2 through 10

If the Controller signals the MCU PWB to send the output to any Mailbox Bin between 1
through 9, the MCU PWB actuates the In Gate Solenoid, the Solenoid drops the In Gate
and the paper path continues into the Mailbox. The Entrance Sensor, located at the input
of the Mailbox paper path, monitors paper arrival into the Mailbox. The Exit Rolls and the
Pinch Rolls drive the sheet of paper to the top of the Mailbox. Along the way, all of the Bin
Gates remain closed except the Bin Gate of the designated Bin. (In the following
example, the output is destined for Bin 5.)
The paper path moves past Bins 1 through 4. Bin 5 Gate Solenoid opens Bin 5 Gate and
Bin 5 Roller drives the paper into Bin 5. The Vertical Sensor monitors paper travel into
Bins 1 through 9. An LED located at the top of the Bin Gates shines light down through
cutouts in each Gate and onto the Vertical Sensor located at the bottom of the Bin Gates.
When a sheet of paper enters any Bin, 1 through 9, the sheet breaks the light beam and
the Sensor signals the Mailbox Control PWB that a sheet of paper has entered a Bin. All
Bins have a Full Stack Sensor. The Full Stack Sensors monitor the paper level in each
Bin and signal the Mailbox Control PWB when a Bin is full. The No Paper Sensors
monitor the presence of paper in each Bin and signal the Mailbox PWB when paper is
present in a Bin.
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