Question about HP LaserJet M4345 MultiFunction Printer

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Grinding noise new fuser and fuser drive gear, loud grinding noise as motors start

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  • HP Master
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"Swing plate assembly" (RM1-0043-020CN) need to replace to avoid grinding noise. ..Note: Only professionals can perform this activity..

Posted on Jan 26, 2013

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Posted on Jan 02, 2017

  • 300 Answers

SOURCE: Grinding Noise

Common problem on the HP 4200/4300's it's caused by the swing arm (the gear assembly that drives the fuser) HP have modified this. If you contact them direct they may replace it free of charge

Posted on Oct 07, 2008

  • 193 Answers

SOURCE: HP P3005 making grinding noises

this is a problem that HP refuses to acknowledges. Its caused by the gear that meshes with the main fuser gear..it wanders to the right as the printer prints. we are checking into a fix for this, since we are getting no cooperation for the manufacturer, Canon or HP. Canon makes the print engine

Posted on Apr 13, 2009

seeker5211
  • 1089 Answers

SOURCE: HP LJ3005n printer is making loud grinding noises

Common problem. The fix is to change the fuser AND the fuser idler gear - RU5-0957-000CN. It is a 20 tooth gear. As the teeth wear the noise gets progressively worse.

Posted on Jan 24, 2010

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  • 261 Answers

SOURCE: Loud Thumbing noise coming from near fuser assy.

Hi need service

Posted on Oct 21, 2010

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1 Answer

HP Color Laserjet 8550 - Loud grinding noise near fuser


Hi Harden,
Thats an issue with the fuser assembly,try to check the teflon condition/ teeth gear might have worn out.

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Yes, you are probably right about the spacer or shim. A salvage yard should have lots of them for little or nothing. When you remove the starter for the spacer, check the drive gear end of the starter for severe wear. If it is chewed off very bad, have a new drive gear put on, or replace the starter.

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I have a CL4000DN making a grinding noise when first turned on any ideas?


it is possible that the drive gear in the fuser has failed. this will cause a very loud grinding sound in the back of the unit where the paper comes out. you can order new gears for it but sometimes its easier to replace the Fuser.in saying all this where is the noise coming from?

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When i close the back door it is making a loud noise. sharp al 1631


If it sounds like gears grinding it may be the fuser unit. The bushings and gears need replaced or new fuser unit.

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1 Answer

No error messages, but there is a loud banging noise during printing that just started. Cannot locate the source.......


Could it be more like a clicking or grinding noise? That would be the swing plate assembly gears. Those gears connect the drive system to the fuser, driving the fuser gears. There is no workaround, it is a replace only. I would suggest contacting a service provider. The swing plate assembly has either a quick 15 minute fix or a tiresome and complicated up to 2 hour fix, especially if the screws get stripped out.

What happens is the fuser gears and the swing plate assembly gears bounce slightly, creating wear on the fuser drive gear and the swing plate gears. Over time they wear down enough that they start making noise and will eventually start causing jams in the fuser. If you notice a bunch of white dust that has an oily texture when you rub with your figures on the drive side of the fuser, that is the gear dust.

Good luck!

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HP Color Laserjet 2840 now makes ear-splitting whine every time


Did the noise start right after you replaced a toner? If so it must be a bad toner which is causing the gears to grind. If this noise happened out of the blue then it might be a bad fuser drive gear which is the gears that connect the fuser to the machine.

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HP P3005 making grinding noises


this is a problem that HP refuses to acknowledges. Its caused by the gear that meshes with the main fuser gear..it wanders to the right as the printer prints. we are checking into a fix for this, since we are getting no cooperation for the manufacturer, Canon or HP. Canon makes the print engine

Apr 01, 2009 | HP Hewlett Packard LaserJet P3005 Printer

1 Answer

Grinding Noise


Common problem on the HP 4200/4300's it's caused by the swing arm (the gear assembly that drives the fuser) HP have modified this. If you contact them direct they may replace it free of charge

Oct 07, 2008 | HP LaserJet 4250dtn Printer

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Gear making a grinding noise


Not too good news I'm afraid. It sound like the fuser gear has failed. Generally the fuser unit (hot section or hot rollers in the back) need to be replaced. Usually when the gear has worn or failed the fuser rollers are also worn and need to be replaced. The gear can be replaced seperately but is a very risky operation and usually results in parts in the fuser unit falling appart due to age and wear, so it is best done as a unit. If possible do not run the machine as it can cause damage to gears around the fuser unit. The best option is to find out how much a fuser unit and labour to fit would be at your local service centre.

Jan 29, 2008 | Brother IntelliFAX 4100 Laser Fax

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