Head Power Voltage Adjustment; Sensor Voltage Adjustment - Citizen OP900II Technical Manual

1，Head Power Voltage Adjustment
① This adjusts the Head Power Voltage. Turn the printer ON.
Caution
The Power Unit has high voltage, and can get hot, so use caution.
② Adjust using the variable resistor while monitoring Power Unit CN101 with a meter.
Head Power Voltage Range
2，Sensor Voltage Adjustment
This is set using the variable resistors on the Driver Board.
VR3
PC Mark
35.0V ±0.05V
Adjust the head power voltage measuring the power unit directly with a meter. Do
not adjust using OP2-Tools "Head Voltage" value setting.
Variable Resistor
VR4 VR2
Ribbon C Ribbon R
＋
Variable
resistor
－
VR1
Paper end
48
Signal Resistor
Paper end VR1
Ribbon R VR2
PC Mark VR3
Ribbon C VR4