Panasonic KX-FHD332C Service Manual page 167

pin 103 (STB1) and IC501 pin 104 (STB2). (logic-AND)
[Print speed of one-line: 4.608msec]
(ii) Print Duty more than 50%
The sequence is shown on TIMING CHART ().
When print duty is more than 50%, IC520 pin 45 (NEWSTB1) and IC501 pin 103 (STB1) are the
same signal.
[IC520 pin 44 (NEWSTB2) and IC501 pin 104 (STB2) are the same signal.]
[Print speed of one-line: 4.608msec x 2 = 9.216msec]
TIMING CHART
(i) Print Duty 50% or less
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