Description: • ZERO CROSS error.
PSU does not output ZERO CROSS signal, ZERO CROSS signal is detected
Code: 11
Display: Call service 11
Description: • PSU fan motor error.
The PSU FAN does not rotate or the rotation of the PSU FAN cannot be detected normally.
Code: 17
Display: Call service 17
Description: • Fuse error of monochrome drum cartridge.
The First use sensor problem. Especially "CALL SERVICE 17" is appeared when the fuse which is installed in the Drum Unit PCB is not blown out within a specific time.
Code: 20
Display: Call service 20
Description: • Toner LED error.
Toner empty detect sensor problem. Especially "CALL SERVICE 20" appears when following problems occur. 1. Photo diode is broken by open mode. 2. Connection problem between Main PCB and photo diode PCB. 3. 5V is not supplied to photo diode.