13
Data transfer sequence is shown as follows:
The following procedures are needed for printing operation:
1.
Turning on HVC port pin, supply Vp voltage to Head.
2.
Supply Vm voltage to the paper feed motor of Printer Mechanism and enter Start Hold.
3.
While in Start Hold, transfer, to Head, print data of the 1st dot line.
4.
On completion of transfer, latch the print data to Head.
5.
Following Start Hold period, supply pre-pulse. (Current is supplied when STB bit of Head Control Mode Register
is set to "1".)
6.
On completion of pre-pulse supply, perform main pulse supply.
7.
While in main pulse supply, transfer, to Head, print data to the 2nd dot line. (Pre-pulse data of the 2nd dot line)
8.
On termination of main pulse supply time and, also, when paper feed has been completed, perform pre-pulse
supply for the 2nd dot line.
9.
While in pre-pulse supply, transfer print data one more time to Head for main pulse.
10.
While in main pulse supply, transfer print data to the next dot line.
11.
On termination of main pulse supply and, also, when paper feed has been completed, perform pre-pulse supply
for the next dot line.
12.
When print data continue, repeat 9
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11.
13.
On completion of the next line printing, provide the paper feed motor with Stop Hold time. On termination of
that time, Head voltage and motor voltage are turned off for operation end.
Note) Set STBLOG (Pin 13) to suit to Thermal Head.
STBLOG: Strobe Signal Logic Switching Pin
"L" : positive logic output
"H" : negative logic output
STB1
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3 : Strobe Split Output Pin
Connect, to STB pin of Thermal Head, STB 1 and 2 on 2-splitting and STB 1, 2, and 3 on 3-splitting.
PART2 : 2/3 Split Drive Switching Pin
"L" : 3-split drive
"H" : 2-split drive
