it's making a loud grinding or clicking noise every time it tries to pick up a sheet of paper.

Diagnosis

The grinding or clicking noise in the Brother HL-L2350DW is typically caused by a failure in the paper feed synchronization. When the printer attempts to pull a sheet, the pickup roller (the rubber wheel) fails to grip the paper due to accumulated paper dust or "glazing" (where the rubber hardens over time). Because the roller isn't moving the paper, the drive gear continues to rotate, causing the plastic teeth of the pickup gear to slip or "chatter" against the drive shaft, creating that distinct rhythmic clicking or grinding sound.

In some cases, the noise is caused by a physical obstruction—such as a staple, paperclip, or a small scrap of torn paper—lodged in the registration area. This creates mechanical resistance that forces the motor to strain. You can confirm this by attempting a print job with a small stack of heavy cardstock; if the noise persists but the paper moves, the rollers are worn. If the noise occurs and the paper remains stationary, the rollers are either filthy or the gear assembly is slipping.

How to Fix It

To resolve the mechanical noise and restore paper feed functionality, follow these precise steps:

1. Power down the HL-L2350DW and disconnect the AC power cord from the wall outlet to prevent electrical shock.
2. Remove the paper tray completely from the machine. Pull the tray straight out and set it aside.
3. Look inside the cavity where the tray was located. Using a flashlight, locate the two rubber pickup rollers at the center-back of the feed area.
4. Dampen a lint-free microfiber cloth with distilled water. Avoid using rubbing alcohol, as it can dry out the rubber and accelerate cracking.
5. Wipe the circumference of the rubber rollers thoroughly. Rotate them manually with your finger to ensure you clean the entire surface area. You will likely see a grey, powdery residue on the cloth; this is paper dust.
6. Inspect the paper tray guides. Ensure the side guides and the rear length guide are clicked firmly into the notches corresponding to your paper size (e.g., Letter or A4). If these are too loose, the paper enters at an angle, causing the rollers to slip and grind.
7. Check the "Pick-up Roller" assembly for any visible debris. If you see a scrap of paper, use a pair of needle-nose pliers to gently pull it out.
8. Reinsert the paper tray, plug the unit back in, and run a "Print Quality Check Sheet" from the system menu to test the feed.

If That Didn't Work

• Replace the Pickup Roller Kit: If cleaning doesn't stop the noise, the rubber has likely reached its wear limit (the "tread" is gone). Purchase a replacement pickup roller kit (Part # LT-2350). These are snap-in components that can be replaced by popping the old rubber sleeve off the plastic hub and pressing the new one into place.
• Clear the Rear Access Door: Open the back cover of the printer. Check for any jammed fragments of paper near the fuser rollers. Even a tiny piece of paper caught in the gear teeth can cause a clicking sound as the motor struggles to rotate the assembly.
• Reset the Paper Tray Tension: Inspect the tray's plastic "lift" mechanism. If the tray is warped or the spring is failing, the paper may be sitting too low for the rollers to grab, causing the motor to spin without traction. Try adding a small amount of additional paper to the tray to lift the stack closer to the rollers.
• Perform a Hard Reset: Unplug the power cord for 60 seconds. While unplugged, hold the power button for 10 seconds to discharge remaining electricity from the capacitors. This can occasionally reset the motor timing if a software-induced "stutter" is causing the noise.

Heads Up

• Avoid "Paper-Dust" Buildup: To prevent future grinding, fan your paper stack before loading it into the tray to remove static and loose debris.
• Paper Weight Warning: Using paper that is too thick (above 60 lb cover) or too thin (below 20 lb bond) can cause the pickup rollers to slip, leading to the same clicking noise and potential gear wear.
• Cleaning Frequency: If you print more than 500 pages a month, clean the pickup rollers every 30 days to maintain the grip and protect the drive motor.
• No Lubricants: Never apply WD-40, oil, or grease to the pickup rollers or the visible plastic gears. Lubricants attract paper dust, which creates a thick paste that will permanently jam the feed mechanism.