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CHAPTER 2
F. Video Interface Control
1. Outline
The following explains the types of interface signals used between the DC controller circuit and
the video controller circuit, and provides an outline of operation sequence executed using these
interface signals.
a. System block diagram
Video controller PCB
Video interface
signal
(Figure 2-2-15)
External device (e.g., host computer)
Printer
DC controller PCB
D input signal
(/BDIN)
Video signal
(/VDO, VDO)
Laser unitBD PCB
Figure 2-2-14
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