4.3.2 Timing Signal Count Method
When printing a graphic image, print a picture unit by the following method. The print start position
deviation may not occur.
1. Determine the print start position of the first line by the ON-rise of the home switch signal (same as
the home switch signal method).
2. For the second and the subsequent lines, determine the print start position by counting timing
signals (do not stop the head at its home position).
Example: When printing one picture unit by three lines
Motor drive
signal
1st line
2nd line
3rd line
Home switch
signal
Ignored
Ignored
Timing
signal
Figure 4-4 Continuous Printing Timing Chart (Timing Signal Method)
(1) Timing signal count is started after the home switch turned ON for the first line.
(2) When the timing signal count becomes N + 1, the head completes one stroke, and returns to the
position of timing signal count 1 on the first line. At this point, ignore the home switch signal.
(3) For the second line, replace N + 1 with 1, and proceed to the timing signal count.
(4) When the timing signal count becomes N + 1, replace N + 1 with 1, and conduct timing signal count
for the third line.
(5) Upon completion of printing the third line, detect the ON-to-OFF of the home switch, and stop the
motor to complete an operation cycle.
4-4
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
