Description: Laser Beam Pitch Adjustment Error Definition [B] The LD unit home position sensor does not detect an on condition while changing the LD unit position for correcting the LD position or changing the dpi.
Causes: · The laser beam pitch adjustment (SP2-6-3 and 4) was not done after replacing the NVRAM or doing an NVRAM clear. · The laser beam pitch adjustment (SP2-6-1 ~ 4) was not done after replacing the LD unit. · LD unit movement blocked because of incorrect connector routing
Code: SC350-1
Description: ID Sensor Error 1 Definition [D] One of the following ID sensor output voltages was detected twice consecutively when checking the ID sensor pattern. 1) Vsp>=2.5 V 2) Vsg<=2.5 V 3) Vsp = 0 V 4) Vsg = 0 V
Causes: · ID sensor defective · ID sensor connector defective · Poor ID sensor connector connection · I/O board (IOB) defective · High voltage supply board defective · Dirty ID sensor · Defect at ID sensor pattern writing area of the drum
Code: SC350-2
Description: ID Sensor Error 2 Definition [D] The ID sensor output voltage is 5.0 V and the PWM signal input to the ID sensor is 0 when checking the ID sensor pattern.
Causes: · ID sensor defective · ID sensor connector defective · Poor ID sensor connector connection · I/O board (IOB) defective · High voltage supply board defective · Dirty ID sensor · Defect at the ID sensor pattern writing area of the drum
Code: SC350-3
Description: ID Sensor Error 3 Definition [D] The ID sensor pattern edge voltage is detected to be not 2.5 V twice consecutively during an 800 ms interval.
Causes: · ID sensor defective · ID sensor connector defective · Poor ID sensor connector connection · I/O board (IOB) defective · High voltage supply board defective · Dirty ID sensor · Defect at the ID sensor pattern writing area of the drum
Code: SC350-4
Description: ID Sensor Error 4 Definition [D] One of the following ID sensor output voltages is detected at ID sensor initialization. 1) Vsg < 4.0 V when the maximum PWM input (255) is applied to the ID sensor. 2) Vsg>=4.0 V when the minimum PWM input (0) is applied to the ID sensor.
Causes: · ID sensor defective · ID sensor connector defective · Poor ID sensor connector connection · I/O board (IOB) defective · High voltage supply board defective · Dirty ID sensor · Defect at the ID sensor pattern writing area of the drum
Code: SC350-5
Description: ID Sensor Error 5 Definition [D] Vsg falls out of the adjustment target (4.0 ± 0.2 V) during Vsg checking
Causes: · ID sensor defective · ID sensor connector defective · Poor ID sensor connector connection · I/O board (IOB) defective · High voltage supply board defective · Dirty ID sensor · Defect at the ID sensor pattern writing area of the drum