Brother International HL-1260 Service Manual - Page 157
No paper pick-up from cassette or MP tray
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M-11 "54 MOTOR MALF" is displayed (The main motor rotation disabled) Possible cause Step Check Result Remedy Low-voltage power 1 supply PCB LV harness Main PCB Is the voltage of P7-1 in the main PCB connector +24V? No Replace the main PCB assy low-voltage power supply PCB assy, or the LV harness. DC motor harness 2 DC motor assy. Does the voltage of P7-4 in the main PCB connector drop from 5V to 0V after dropping the voltage of P7-3 from 5V to 0V? No Replace the main PCB assy. Yes Replace the DC motor harness or the DC motor assy. M-12 No paper pick-up from cassette (or MP tray) Possible cause Step Check Result Remedy Mis-operation 1 Is the paper feed mode set correctly? No Set paper feed mode correctly. Main PCB 2 Does the voltage of P3-20 (or 19) in the main No Replace the main PCB assy. PCB connector rise from 0V to 5V and is a pulses having about 11ms period generated at P3-6, 7, 8 ,9 pin? Feed flat cable 3 Does the voltage of P5-20 (or 19) in the paper No Replace the feed flat cable. feeder PCB. Connector rise from 0V to 5V and is the pulses having about 11ms period generated at P3-6, 7, 8 ,9 pin? Paper feeder PCB 4 Does the voltage of P3-1 (or P4-1) in the paper feeder PCB connector drop from 24V to 0V and is the chopping pulses generated at P1-1, 2, 5 ,6 pin? No Replace the Paper feed/sizeSW PCB assy. Pick-up(or MP Pick) solenoid 5 Does the pick-up (or MP Pick) solenoid operate? No Replace the pick-up (or MP Pick) solenoid. Paper feed motor 6 Does the pick-up motor rotate? No Replace the paper feed motor assy. VI - 5