Sony UP-960, Service Manual

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4-13 UP-960(UC)
UP-960CE(CE)
4-5. THERMAL HEAD SECTION
4-5-1. Structure
Thermal head consists of one line 1280 dot (128 bit x 10). There are ten combinations such as follows.
( DATA input is 10 DATA [10 : 1], other terminals are common.)
V
H
R128 R3 R2 R1
Output stage transistor
Latch section D128 D3 D2 D1
D128 D3 D2 D1 Shift register section
+
5 V
DR
BEO
STB
DATA[n]
CLK
Thermal Head Inner Circuit Structure
DATA
CLK
STB
DR
BEO
print data(128 data)
128CLK
Head heat time
When starting the print, here becomes H.
Timing Chart