Video Interface Control - Canon LBP1760P Service Manual

E. Video Interface Control
1. Outline
To connect the printer to an external device, such as a host computer, a video controller PCB is
needed.
This section explains the kinds of interface signals exchanged between the engine controller
and the video controller, and gives information concerning the sequence of printer operation
making use of the interface signals.
a. System block diagram
External device (host computer, etc.)
Printer
Video controller
Video interface signal
(see Figure 2-2-10)
Engine controller
BD input signal Video signal
(/BDI)
Laser
BD PCB
driver
Figure 2-2-9
(/VDO)
CHAPTER 2
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