Why does a printer make strange noises: just dust or a serious malfunction?

During normal operation, printers make various noises that you eventually get used to—you might hear the paper being fed, the motor humming, or the fan running—and that’s completely normal. However, if your printer suddenly starts making unusual noises—such as creaking, squeaking, crackling, or a metallic grinding sound—that’s a sign to be concerned. Although a sudden, unusual noise doesn’t necessarily mean a serious malfunction, you shouldn’t ignore it, spotting a problem early can help you avoid costly repairs down the road. So, in this article, we’ll discuss which printer sounds can be considered normal, and which ones are a warrant to contact a technician.
 

Why did the printer suddenly start making strange noises?

First and foremost, it’s important to note that strange noises can occur regardless of how long the printer has been in use—this can happen with both new printers and those that have been in service for a long time. The most common causes of strange noises in new printers are shipping locks that haven’t been removed, protective films, or, in rare cases, manufacturing defects. Meanwhile, laser printers that have been in use for a long time and are used frequently experience natural decay. Continuous printing, paper dust, and environmental conditions gradually affect the moving parts, which can lead to unusual noises.
 

During normal printing, the parts that move most frequently and are most affected are:

•    paper feed rollers;
•    transport rollers;
•    gears;
•    toner cartridge mechanisms;
•    parts of the fuser (thermal) unit.

All these components can become sources of noise, especially if the device is used intensively and preventive maintenance is performed infrequently or not at all.
 

Common operational malfunctions: what sounds help identify them?

One of the most common causes of unusual noises from printers is the accumulation of debris inside—paper dust and toner residue. This hinders the smooth operation of the mechanisms, and over time, as friction between moving parts increases, unwanted noises occur.
When debris accumulates on the rollers, a squeaking or rattling sound is usually heard. At first, this noise may be barely audible and seem insignificant, but it is likely that friction within the mechanisms will increase over time, and the noise will grow louder.
Unremoved dust acts as an abrasive, causing the rollers, bushings, and gears to wear out more quickly. For this reason, it’s important to perform periodic preventive maintenance on your printer—this can help you avoid more significant repair costs in the future.
 

How can you safely inspect and clean the device without a technician’s help?

The first and most important step when performing any printer cleaning tasks is to unplug the device from the power source and, if it was in use beforehand, wait until it has cooled down completely.
 

Recommended safety precautions:

1. Remove the toner cartridge.
2. Check for any jammed paper or paper residue.
3. Carefully wipe the visible rollers with a microfiber cloth.
4. Make sure the cartridge is properly reinserted.


It is very important not to use any household oils, silicone sprays, or chemical cleaners during the cleaning process. Any products not intended for cleaning office equipment can irreversibly damage the internal mechanisms.
 

When should you stop printing and contact a technician immediately?

Although most noises emitted by printers may be related to normal daily operation, there are cases where unexpected noises signal more serious mechanical malfunctions.  An audible crunching sound may indicate broken gear teeth, a metallic grinding sound may indicate worn-out bearings, and a repetitive squeaking sound may indicate a damaged thermal film.
 

Situations requiring a technician’s assistance:

•    The noise does not go away or becomes even louder after you’ve cleaned the printer yourself.
•    You’re experiencing not only additional noise but also paper jams, deteriorating print quality, or interruptions in the printer’s operation.
•    Additional symptoms appear—an error is displayed on the screen, you smell burning, smoke appears, or the printer stops working altogether.

Attempting to continue using or repairing the malfunctioning device on your own may cause irreversible damage. In such cases, it’s best to stop using the equipment and contact a technician. Early diagnosis often allows for the replacement of a single part before the malfunction affects other mechanisms, thereby avoiding a bigger printer cost.
 

Ensure your printer’s reliability in advance

Don’t wait until the printers in your office start making unusual noises—perform the recommended safe printer cleaning procedures periodically or entrust printer maintenance to specialists. 
Konica Minolta can provide professional diagnostics, preventive maintenance, and repairs for your printing equipment. Contact us—we’ll help ensure that your printers operate reliably, efficiently, and without unexpected disruptions.