1x500-sheet paper feeder
The 1x500-sheet paper feeder (PF) is optionally installed at the bottom of the product. It features paper
pickup and paper feeding to the product. The product supports up to four optional paper feeders.
Figure 1-29 1x500-sheet paper feeder
Paper Feeder
Face-down delivery
Face-up delivery
The paper feeder driver controls the operational sequence of the paper feeder and the serial
communication with the DC controller of the product.
The DC controller sends several commands to the paper feeder driver at necessary timing. The paper
feeder driver drives each load, such as motor and solenoid, according to the commands. The paper
feeder driver responds the status information of the paper feeder to the DC controller.
The DC controller determines a paper feeder illegal connection and notifies the formatter if it does not
make the serial communication with the paper feeder driver during the pre-rotation period when the
product is turned on, when recovering from the Sleep mode or when the door is closed.
The product supplies DC24V to the paper feeder. The DC3.3V for sensors and ICs is generated from
the DC24V in the paper feeder driver.
40 Chapter 1 Theory of operation ENWW
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