Oki Okipage 8p, Maintenance Manual, Page: 139 / 190

- 11 -
The printing operation is carried out in the following sequence. First, the printing data DATAI3
through DATAI0 are stored, sequentially shifted, in the shift registers of the LED drivers, by the
printing data synchronous clock, CLOCKI. Then the printing data stored in shift registers are
latched by the high level pulse of LOADI. The latched printing data turns the LEDs on by STRB1I-
N through STRB4I-N and actuates printing.
CLOCKI
LOADI
DATAI3~0
STRB1I-N
STRB2I-N
STRB3I-N
STRB4I-N
Normal Mode Printing Timing Chart
First line printing data sent Second line printing data sent
First line printing