IV-49
<HSYNC>
Horizontal synchronization signal for printing
<VIDEO>
Video data signal
<COMMAND>
Command signal sent from the controller to the engine
<STATUS>
Status signal sent from the engine to the controller
Fig.4-38 shows the timing of each signal after the power switch is turned on.
Power On
IREADY-N
PRREQ-N
VSYNC-N
VSYNC-N
HSYNC-N
VIDEO-P
VIDEO-P
210s MAX.
0.1sec. MIN.
15sec. MAX.
15us MIN.
10ms MAX.
1.0sec. MAX.
3.0sec. MAX. for Continuous Printing
(K) data
(C) data
(M) data
(Y) data
3.75s
417.781us
1st line 2nd line Last line1dot
56.296ns
Fig.4-38
The COMMAND signal and STATUS signal are the signals that are used to
transfer the data between the controller and the engine, which perform as a
half-duplex asynchronous serial communication. Refer to Fig.4-39.
8ms (TYP)
30ms (MAX)
P
P
LSB
MSB
LSB
MSB
Fig.4-39
COMMAND
STATUS
Start bit
Parity bit
Stop bit
Start bit
Parity bit
Stop bit
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