Brother HL-1020, HL-820, HL-1040 manual Paper JAM

4.PAPER JAM

Problem	Type of jam	Cause	Temp measure
Jam at power on	Paper stuck	Paper feed sensor or	Remove the paper inside
		paper eject sensor is	the printer. If there is no
		turned on.	paper, check the
			suspect sensors
			referring to note and
			clear the problem.
Top of paper stopped	No paper	Paper feed sensor is	Check paper feed
at 20mm from the		not turned on.	sensor motion referring
fixing unit.			to note and clear the
Paper feed roller			problem.
rotated twice.
Top of paper stopped	Jam caused by paper	Paper feed sensor is	Check paper feed
at 250mm from the	length detected as	not returning properly,	sensor motion referring
fixing unit.	longer than 400mm (16	and is not turned off.	to note and clear the
Next paper is not fed.	inches).		problem.
Top paper stopped	Jam caused by paper	Paper feed sensor	Check sensors referring
between the paper	length detected as	was turned off early.	to note and clear the
feed roller and the	shorter than 80mm.	Malfunction of	cause of the problem.
pick-up roller.		actuator or hardware
		noise.
Paper was fed approx.	Jam caused by a paper	Due to paper dust or	Remove the paper dust
20mm from the pick-	feed delay.	rubber of the pick-up	attached to the pick-up
up roller.		roller wear, paper was	roller. If the rubber is
		not fed in at the	worn out, replace it with
		proper timing.	new one.
Top of paper stopped	Jam caused by the	Paper eject sensor	Check the sensor motion
at 17mm from the	paper sensed as not	does not work	referring to note and
contact point of the	being ejected from the	properly and is not	clear the problem.
heat roller and	paper eject sensor.	turned off.
pressure roller.		(single printing)
Jam occurred after	Same as above.	Same as above.	Same as above.
ejecting paper.		(continuous printing)
Top of paper stopped	1. Cover open	1. Cover is not closed	1. Check if the drum unit
at 20mm from the	2. Bug	properly.	is installed correctly.
fixing unit.
		2. Bug	2. Please inform BIL.

Note: How to check the sensors

(1)Open the cover.

(2)Power on the printer while pressing the panel switch.

(3)Release the panel switch.

(4)Press and release the panel switch.

Results:

*Alarm Lamp is ON = Paper feed sensor is turned ON *Drum Lamp is ON = Paper eject sensor is turned ON

IV-21