MPC2051 Lanier LD620C moaning sound

[tonerhead]

Operator is running labels and thick 3 cardstock through bypass. After 3-4 sheets run through this continuous moan eminates from the fuser (sounds like it anyway) You can stop the run, wait 30 seconds and first 1-3 are fine then the constant moan again. Customer is concerned as they run several pieces of cardstock at once and are afraid they are hurting it. I have run std 20 lb for a run of 30, no noise, perfect. On Ricoh site others are having same issue with no resolution other than trying a new fuser. This mfp is new with around 7k on it, fuser is cherry yet, not even an ounce of wear.

Any thoughts?

[teebee1234]

Re: MPC2051 Lanier LD620C moaning sound

From the Knowledge Base.....

RTB No.: RD014036 : Vibration noise from fusing unit in thick paper mode

Published 09/26/2011 09:06 PM | Updated 09/26/2011 09:06 PM
Answer ID 142868 | FAQ ID 142813 | Rank A2

[SYMPTOM]
A loud vibration is heard from the fusing unit when the machine is operating under the thick paper mode.

CAUSE
Sticking and slipping occurs between the nip pad and the fusing belt at high temperatures, causing vibration. This vibration is transmitted via the nip pad stay and the belt, where it resonates and creates a loud noise.

SOLUTION
In the field:
If this symptom is reported, do the following steps and adjust the target fusing temperature.
Step 1) Lower the target fusing temperatures in the following SP modes.

SP Number	Description	Default	Min.	Dim
SP1-105-021	Thick2:FC:Center	145	120	deg
SP1-105-022	Thick2:FC:Press	165	140	deg
SP1-105-023	Thick2:BW:Center	135	110	deg
SP1-105-024	Thick2:BW:Press	140	115	deg
SP1-105-025	Thick3:FC:Center	150	120	deg
SP1-105-026	Thick3:FC:Press	178	148	deg
SP1-105-027	Thick3:BW:Center	140	110	deg
SP1-105-028	Thick3:BW:Press	150	120	deg

Step 2) Make a few copies and check the image quality.
Step 3) If the noise still appears after the above steps, replace the fusing belt unit or fusing unit.

Important: Lower the temperature by 15 - 20 degrees. Be sure to maintain the temperature difference between "Center" and "Press" in the above table. For example, when changing SP 1-105-021 from 145 -> 125, change SP1-105-022 from 165 -> 145 at the same time.
If the temperature is set too low, fusing offset image problems might appear. Always check the image quality after changing these values.

[TonerMunkeh]

Re: MPC2051 Lanier LD620C moaning sound

You could try fitting the optional oil supply roller assembly to the fuser too, a lubed belt and pressure roller might help avoid the noise.

[auburntechnology]

Re: MPC2051 Lanier LD620C moaning sound

You could try fitting the optional oil supply roller assembly to the fuser too, a lubed belt and pressure roller might help avoid the noise.

revived thread
you have part numbers for these parts?

[Gift]

Re: MPC2051 Lanier LD620C moaning sound

If the sound disappear in SEF mode it's probably too much friction inside the fuser sleeve and it's inner part. You can disassemble it and slide it off the inner part and add some silicone oil on the contact plate, then reinstall. Only recommendable if need to keep the machine alive for some months within a service contract.

[tonnerboy]

Re: MPC2051 Lanier LD620C moaning sound

revived thread
you have part numbers for these parts?

The part number you are requesting is D1054385
If I may, The given solution of adding the lubricating roller is good, but from my experience you will not solve the problem completely. I've tested this solution and that alone does not eliminate the vibration (noise).
In addition to this I suggest you to lubricate with barrierta grease the bushings of the sleeve Unit.
Detach the sleeve of the bushing and lubricate it. It will erase the vibration.
(See the image attached)

Sleeve Unit.jpg

[JonManchester]

Re: MPC2051 Lanier LD620C moaning sound

I have lubed the padding inside the fuser sleeve with great results. Then i lightly lube the metal casing inside where are the wear marks are. Noise is gone and I don't have to mess with temp settings that may cause issues down the road.
This can be a little tricky at first but iv'e done it a few times and its not too bad.

[tonerhead]

Re: MPC2051 Lanier LD620C moaning sound

I have lubed the padding inside the fuser sleeve with great results. Then i lightly lube the metal casing inside where are the wear marks are. Noise is gone and I don't have to mess with temp settings that may cause issues down the road.
This can be a little tricky at first but iv'e done it a few times and its not too bad.

What do you lube it with?

[JonManchester]

Re: MPC2051 Lanier LD620C moaning sound

Any high quality high temp grease will work, I use lubriplate high temp grease from Katun.

[khattab.al.masry]

Re: MPC2051 Lanier LD620C moaning sound

Here is the following technical bulletin
Thank you in advance.

From the Knowledge Base.....

RTB No.: RD014036 : Vibration noise from fusing unit in thick paper mode

Published 09/26/2011 09:06 PM | Updated 09/26/2011 09:06 PM
Answer ID 142868 | FAQ ID 142813 | Rank A2

[SYMPTOM]
A loud vibration is heard from the fusing unit when the machine is operating under the thick paper mode.

CAUSE
Sticking and slipping occurs between the nip pad and the fusing belt at high temperatures, causing vibration. This vibration is transmitted via the nip pad stay and the belt, where it resonates and creates a loud noise.

SOLUTION
In the field:
If this symptom is reported, do the following steps and adjust the target fusing temperature.
Step 1) Lower the target fusing temperatures in the following SP modes.

SP Number	Description	Default	Min.	Dim
SP1-105-021	Thick2:FC:Center	145	120	deg
SP1-105-022	Thick2:FC:Press	165	140	deg
SP1-105-023	Thick2:BW:Center	135	110	deg
SP1-105-024	Thick2:BW:Press	140	115	deg
SP1-105-025	Thick3:FC:Center	150	120	deg
SP1-105-026	Thick3:FC:Press	178	148	deg
SP1-105-027	Thick3:BW:Center	140	110	deg
SP1-105-028	Thick3:BW:Press	150	120	deg

Step 2) Make a few copies and check the image quality.
Step 3) If the noise still appears after the above steps, replace the fusing belt unit or fusing unit.

Important: Lower the temperature by 15 - 20 degrees. Be sure to maintain the temperature difference between "Center" and "Press" in the above table. For example, when changing SP 1-105-021 from 145 -> 125, change SP1-105-022 from 165 -> 145 at the same time.
If the temperature is set too low, fusing offset image problems might appear. Always check the image quality after changing these values.

[Zaxxon]

Re: MPC2051 Lanier LD620C moaning sound

I am stunned that none of you skilled guys mentioned, that the moaning could come from the previous technician, still crying from behind the copier...

[Gift]

Re: MPC2051 Lanier LD620C moaning sound

Any high quality high temp grease will work, I use lubriplate high temp grease from Katun.

I made it worse with high-viscosity lubricants during my first attempt

[Polarbear]

Re: MPC2051 Lanier LD620C moaning sound

We use MrMcKanik Lithium Grease (stable up to 200 degrees C) and it works a charm.

Remove the heating sleeve and lubricate the bar beneath. Also apply a thin coat to the inside of the heating sleeve.

Reassemble and clean the orange rubber ends of the pressure roller (the only drive contact the machine has with the heating sleeve), and all should be well.

[bob marley]

Re: MPC2051 Lanier LD620C moaning sound

I am stunned that none of you skilled guys mentioned, that the moaning could come from the previous technician, still crying from behind the copier...

Ha Ha Ha