Ricoh MP 2550 fusing issue smearing

[Rick]

This unit is not fusing intermittently . I replaced the upper fuser and lower pressure roller and everything is in its proper place but ocassionally it doesnt fuse the toner . Any ideas any one ?

[Zeldaman]

Re: Ricoh MP 2550 fusing issue smearing

Hi there!
Thermistors new, holders for pressureroller not bend? Then check the lower frame of the fuser. We had a desease with this parts when one (sometimes both) holders for the fusingrollerbearings were broken.
Greetings...

[Jomama46]

Re: Ricoh MP 2550 fusing issue smearing

whole page is not fused or just in spots? OEM toner?
I would start with the thermistors.

[Gift]

Re: Ricoh MP 2550 fusing issue smearing

Check if the engine FW is up-to-date - I'm not shure if there was an official change but it's a start. Other things you can try out: Set the paper type to middle-thick, activate fuser-idling.

[Rick]

Re: Ricoh MP 2550 fusing issue smearing

Check if the engine FW is up-to-date - I'm not shure if there was an official change but it's a start. Other things you can try out: Set the paper type to middle-thick, activate fuser-idling.

I only use oem toner and I just changed the thermisters and I will try the fuser idling . Thanks

[sandmanmac]

Re: Ricoh MP 2550 fusing issue smearing

I only use oem toner and I just changed the thermisters and I will try the fuser idling . Thanks

Had this recently myself, and turning on fuser Idling did the trick

[JustManuals]

Re: Ricoh MP 2550 fusing issue smearing

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[rsyarcia]

Re: Ricoh MP 2550 fusing issue smearing

We have this problem, we changed the fusing unit assy,boards,set fusing idling and updated the firmwares but no improvements. If you notice after unfused copies, when you remove the fusing unit and put it back the copy is good. What you can do is to check the fusing unit maybe it is moving during operation.See the logs on the machine for any SC sodes.