MP C4500 Intermittent fading

[iscott]

[jonezy999]

Re: MP C4500 Intermittent fading

I would remove the LSU shutter completely.

[Counsel]

Re: MP C4500 Intermittent fading

dirty or clogged mag roller, also clean the laser glass shield, could be bad corona wire and grid.

[jonezy999]

Re: MP C4500 Intermittent fading

dirty or clogged mag roller, also clean the laser glass shield, could be bad corona wire and grid.

These machines use a charge roller, not a corona and grid.

[Counsel]

Re: MP C4500 Intermittent fading

ya i relized that after posting i though it was the mp4000 not the 4500, so forget what i said about a corona, i would definatly clean the mag roller though.

[jonezy999]

Re: MP C4500 Intermittent fading

ya i relized that after posting i though it was the mp4000 not the 4500, so forget what i said about a corona, i would definatly clean the mag roller though.

The MP4000 uses a charge roller aswell. As this is an intermittent fault I don't think the mag roller is at fault here, when the mag is caked up it is constant faded image. The issue is the laser shutter does not open fully every time the the machine prints. Just remove the shutter and you will be good to go.

[Counsel]

Re: MP C4500 Intermittent fading

The MP4000 uses a charge roller aswell. As this is an intermittent fault I don't think the mag roller is at fault here, when the mag is caked up it is constant faded image. The issue is the laser shutter does not open fully every time the the machine prints. Just remove the shutter and you will be good to go.

Yes im am sure you are correct, and thank you for correcting me, the machine I had in my mind was the 5500, i don't know why I was thinking that, but I dont commonly go by the ricoh model #, most of the machines i have out there are gestetner labeled or lanier or by memory i use the code # very few have the ricoh numbers so I get confused on the forums as it seems almost everyone else uses the ricoh model for reference.

[jonezy999]

Re: MP C4500 Intermittent fading

Yes im am sure you are correct, and thank you for correcting me, the machine I had in my mind was the 5500, i don't know why I was thinking that, but I dont commonly go by the ricoh model #, most of the machines i have out there are gestetner labeled or lanier or by memory i use the code # very few have the ricoh numbers so I get confused on the forums as it seems almost everyone else uses the ricoh model for reference.

All good mate, not having a dig, just gets pretty confusing when a tech is trying to get a machine running and the advice they receive is of no relevance.

This page may be of some use to you.

http://www.precisionroller.com/ricoh/cross-reference.html

[Counsel]

Re: MP C4500 Intermittent fading

All good mate, not having a dig, just gets pretty confusing when a tech is trying to get a machine running and the advice they receive is of no relevance.

This page may be of some use to you.
Ricoh Equivalent Cross-Reference Guide

Thanks for the info, i was using either the tsrc site or my old goose guide that had an xref sheet but its a tad out of date. Good Help.

[mabawser]

Re: MP C4500 Intermittent fading

remove the laser shutter completly, had similar before and removed the shutter and never seen the fault again (supposedly a cam that opens the shutter jams)

[daveyt]

Re: MP C4500 Intermittent fading

Yep I agree, remove the laser shutter, we've had lots of problems. The shutter for whatever reason, doesn't open properly, and creates intermittent fading/deletions at one end of the page.

[wimps]

Re: MP C4500 Intermittent fading

This might be a shot in the dark, are the bushings that run the mac roller still there, I have had this happen to me where the previous tech had removed them to vac out drum unit and did not replace them

[Llama God]

Re: MP C4500 Intermittent fading

ya i relized that after posting i though it was the mp4000 not the 4500, so forget what i said about a corona, i would definatly clean the mag roller though.

Outstanding work, you should come and work for us!

[Masterchief]

Re: MP C4500 Intermittent fading

Well lets hope its not damage to the ITB or at worse some damage to the fusing balt as i have come upon before as these take time to repair

let me know how you get on....

PS have you tried printing off in all colours from the OP to eliminate Dev unit replacement on BK

Masterchief