the printer is making a loud grinding noise every time it picks up paper

Diagnosis

The loud grinding noise in the Brother HL-L2460DW is typically caused by a failure in the paper feed mechanism, specifically where the pickup roller fails to grip the top sheet of paper. When the rubber tire of the pickup roller becomes glazed, coated in paper dust, or worn down, it loses its coefficient of friction. Instead of pulling the paper forward, the roller spins rapidly against the stack, creating a high-pitched mechanical grinding or "chattering" sound as the drive gears struggle against the lack of traction.

This issue is often exacerbated by the use of low-quality or overly smooth paper, which increases the likelihood of slippage. To confirm this is the cause, observe the printer during the noise: if the noise occurs exactly at the moment the printer attempts to "grab" the paper but no sheet moves into the duplex tray, the pickup roller is the culprit. If the noise continues after the paper has already entered the machine, the issue likely lies with the registration roller or the fuser assembly, but a grinding noise specifically during the "pick" phase is almost always the pickup assembly.

How to Fix It

To resolve the grinding noise and restore paper feeding, follow these precise cleaning and adjustment steps:

1. Power off the HL-L2460DW and unplug the power cable from the wall outlet to ensure safety.
2. Completely remove the paper tray from the machine. Pull the tray straight out until it clears the chassis.
3. Reach into the cavity where the tray was seated. At the very back of the opening, you will see the pickup roller—a small, black rubber-coated cylinder.
4. Dampen a lint-free microfiber cloth with distilled water. Do not use isopropyl alcohol or chemical cleaners, as these strip the rubber and accelerate the wear process, leading to permanent glazing.
5. Press the cloth firmly against the rubber roller and rotate it manually. Because the roller is geared, you may need to rotate it several times to clean the entire circumference. Scrub away any visible white paper dust or grey grime.
6. Check the "separator pad" (the small rubber piece located just below the roller). Wipe this clean as well to ensure the printer only picks up one sheet at a time.
7. Allow the rubber to air dry for at least 5 minutes.
8. Reinsert the paper tray, ensuring the paper guides are snug against the edges of the stack but not pinching the paper. Ensure the stack is below the maximum fill line indicated by the plastic markers in the tray.

If That Didn't Work

• Replace the Pickup Roller Assembly: If cleaning does not stop the grinding, the rubber has likely reached its wear limit. Purchase a replacement pickup roller kit (Part No: LT-110 or equivalent for the L2000 series). This involves removing the back panel of the printer and swapping the roller assembly on the drive shaft.
• Inspect the Paper Tray Guides: If the side guides are too loose, the paper shifts diagonally. This causes the roller to hit the paper at an angle, creating a grinding sound as it tries to force a crooked sheet into the registration gap. Tighten the green sliders until they touch the paper without bending it.
• Check for Foreign Objects: Use a flashlight to inspect the paper path for small scraps of torn paper or staples. A tiny piece of debris lodged in the pickup gear assembly can cause a rhythmic grinding noise every time the motor engages.
• Test with Different Media: Try a fresh ream of 20lb bond paper. If the noise stops, your previous paper may have been too glossy or had a coating that the HL-L2460DW rollers cannot grip, confirming the hardware is functional but the media is incompatible.

Heads Up

• Avoid using "compressed air" cans to clean the rollers; this often pushes paper dust deeper into the gear assembly, which can lead to permanent mechanical jamming.
• Always fan the paper stack before loading it into the tray to break the static bond between sheets, reducing the strain on the pickup motor.
• If you hear a loud "clunk" followed by a "Paper Jam" error (Jam 1), do not force the paper out. Pull the paper slowly in the direction of the print path to avoid snapping the plastic registration fingers.
• Periodically check that your paper is not damp. High humidity makes paper "heavy," which increases the torque required for the pickup roller and can lead to premature wear of the drive gears.