Filter
Top Products
DC Controller System
The DC Controller PCA is responsible for coordinating all
activities involved in the printing process. The DC Controller
enables the drive circuitry for the laser beam, and coordinates
print data from the Formatter PCA with paper size, laser beam
motion, the high voltage system, fuser temperature, and motors.
The DC Controller also shares machine status information with
the Formatter PCA so that proper diagnostic messages are
displayed on the control panel.
The DC Controller communicates with the Paper Control PCA,
the High Voltage PCA, the Envelope Feeder, Lower Cassette
Assembly and Duplex Assembly by way of two serial data lines
(SLI and SLO). One line (SLO) is used for sending commands, the
other (SLI) is used for receiving status information from the
selected devices. The amount of toner in the Toner Cartridge also
is monitored indirectly with information on the serial data line.
In summary, the following systems and functions are controlled
and/or monitored by the DC Controller:
• Paper Motion
• Laser and Scanner Drive
• Timing
• Machine Status
• Paper Size and Availability
• High Voltage System
• Fusing Temperature
• Main Motor Drive
• DC Power Supply
• Toner Level
5-2 Functional Overview