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3-36 M3099EX/EH OEM Manual
Control register A#20
Control register B#20
X’00' is set when the power is turned on or when a CLEAR
command is issued for initialization.
b7 b0
A #20
B #20
Read density
(256-step selection) (*1)
X'00': Default (same as for X'80')
X'01': Light
X'FF': Dark
*1: This register is valid if bit 0 control register #19 is 1.