Solved: Re: HP laserJet 700 M712dn rumbling noise - HP Support Community

Daveone · ‎01-13-2016

I have an M712dn thats making a loud rumbling noise. The Fuser drive gears also seem to be getting eaten up and leaves residue inside the printer. I replaced both the fuser drive gear assembly and fuser assembly, but still have the same issue. Any ideas as to what else may be causing this issue?

Thanks

SHThompson · ‎01-21-2016

The problem with that is that gear assemblies generally ship without grease, and HP does not document what is the proper grease to be used on the gears.

@blul_1528 can you let us know what is the correct grease?

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bluI_1528 · ‎01-21-2016

Hi,

You have done the correct steps. Another thing you can try is to check the replacement Fuser drive gear assembly and make sure it has lubrication. Be sure your replacement Fuser Drive Assembly does not have excessive grease on large white gear be sure there is NO grease on the black surfaces/black gears.

Fuser drive assembly part number RM1-2963-040CN, fuser 110v part number CF235-67921

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I am an HP employee supporting the HP Experts who volunteer their time and technical knowledge to help others. Opinions expressed are mine and do not necessarily reflect the opinions of HP.

SHThompson · ‎01-21-2016

The problem with that is that gear assemblies generally ship without grease, and HP does not document what is the proper grease to be used on the gears.

@blul_1528 can you let us know what is the correct grease?

If my post resolves your issue please click the accepted as solution button under it.

To thank a Tech for a post click the thumbs up button under the post.

You can even click both buttons. . .

Daveone · ‎01-22-2016

Funny you post this yesterday because just yesterday I replaced the Fuser drive assembly again and used the $300+ high concentrated grease the canon guys use. Now the printer print fine without the noise and grinding gear teeth.

Daveone · ‎01-22-2016

Thanks for this info sir. It was very helpful.

SHThompson · ‎01-22-2016

Was there a part number on that Canon Grease?

What I have didn't cost that much, but it was a small vial.

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Daveone · ‎01-24-2016

I will have to findout and get to you.

bluI_1528 · ‎01-27-2016

Hi -

The part number for HP Gear grease is C5957-67075.

I work for HP, supporting the HP Experts who volunteer their time and technical knowledge to help others.

Thanks.

I am an HP employee supporting the HP Experts who volunteer their time and technical knowledge to help others. Opinions expressed are mine and do not necessarily reflect the opinions of HP.

SHThompson · ‎01-27-2016

@davidzuts this is a new part number to me, I have spent hours on and off looking for a the part number for the grease for printer gears.

Have you used this lubricant?

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davidzuts · ‎01-27-2016

No I have not and according to the HP parts catalog the part is obsolete. A google search shows many vendors wanting a lot for the item. Found one that is reasonable so I will order just to try it out.

HP laserJet 700 M712dn rumbling noise

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