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40930701TH DRAFT Vesion 46 /
CLOCK
LOAD
DATA3~0
STRB1-N
STRB2-N
STRB3-N
STRB4-N
Normal Mode Printing Timing Chart
First line printing data sent Second line printing data sent
First line printing
The printing operation timing chart is shown below.
The printing operation is carried out in normal mode. Under ordinary circumstances such as when
the power is turned on or when LOAD signal level is low, the normal mode is enabled.
The printing operation is carried out in the following sequence. First, the printing data DATA3
through DATA0 are stored, sequentially shifted, in the shift registers of the LED drivers, by the
printing data synchronous clock, CLOCK. Then the printing data stored in shift registers are
latched by the high level pulse of LOAD. The latched printing data turns the LEDs on by STRB1-
N through STRB4-N and actuates printing.