joy_boy

asked May 9, 2018 at 9:17am
Samsung Samsung ML 2250

Starts up, green led, motor spins for 2-4 sec then red led

Hello,

I have this problem - when power up, the printer start with green led, motor runs couple of seconds, then stop and red light. there are no paper jams, i checked the photo-sensors, they are ok, no loose connections, no bad caps, fuser lap is lighting until motor spins (and heating). i want to know what is the fuser termistor resistance on room temp (mine shows about 300kohms). also checked frond open door sensor, its ok (if i open/close front door, same thing, green light , motor spins, then red light.

any help is wellcome :)