CONFIDENTIAL 9
d. Smart card/ Ribbon type sensor
Detect ribbon type and sheet and whether the ribbon install.
e. Ribbon LED
Detect ribbon color Y, M, C and O, which are index as black bar individually.
Reflective Type Sensor
4. TPH Interface
Print data will be shifted into TPH during each clock. After 256 shift clocks, one line data will be
shifted to TPH. Latch/ signal will latch the print data. Strobe/ signal will heat the corresponding heater
elements on TPH according to shift-in data. More the storbe/ time, more the dye of the ribbon is
transferred to paper.
5. Motor Interface
a.Cam motor
Cam motor is a bipolar motor and driven by driver IC L6219. L6219 is designed to drive both windings
of a bipolar stepping motor and includes pulse-width-modulation (PWM) control of ouput current to
750mA. For PWM control, the maximum output current is determined by user's selection of a reference
voltage and sensing resistor.
It controls printing function and position of ASSY LINKAGE.
b. Capstan motor
Capsten motor is a bipolar motor and driven by driver IC L6219. L6219 is designed to drive both
windings of a bipolar stepping motor and includes pulse-width-modulation (PWM) control of ouput
current to 750mA. For PWM control, the maximum output current is determined by user's selection of
a reference voltage and sensing resistor.
It controls Takeup Roller, Feeding Roller, Ribbon Take, Ribbon Rewind, Paper moving
6. Charging Interface
