The Printer's I C Bus - Xerox Phaser 840 Service Manual

The printer's I
An internal data bus, called the I
Through this single bus, the main board can "poll" the I/O boards for the state of the
printer's sensors as well as actuate the printer's solenoids. This data bus greatly simplifies
the wiring that would otherwise be required for monitoring numerous sensors and
2
solenoids. The I C bus also extends down to the High-Capacity Paper Trays.
Fig 1-7 The printer's I
2
C bus
2
C bus, connects all I/O boards to the main board.
2
C bus
High-capacity
Paper Tray
connection
2
I C bus
General Information
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