yellow background on MPC2000

[rsyarcia]

Ok I red the service manual and it is very obvious that you disregarded the other mirrors in which we can use alcohol especially the exposure glass and ADF exposure glass. We are not only talking about the 1st/2nd/3rd mirrors it is the whole optics. And it is very clear that we can use solvents(e.g: alcohol). We are doing Ricoh machines and not 3M and others. Just base on the PM when you gonna use solvent. Anyway thank you for your post.

Scanner

Reflector C Optics cloth
1st/2nd/3rd mirrors C Optics cloth
Front and Rear Rails C Dry cloth
Exposure Glass C C Dry cloth;alcohol
ADF Exposure Glass C C Dry cloth;alcohol
APS Sensor C Dry cloth

[gestetner tech]

The only parts that you should not use alcohol are the mirrors as written in the manual. when i talke optics i mean the mirrors and the lens on CCD the expossure glas and scanner glass i dont refer to optics in that way, and its ok to use alchol on.
What i meant by 3M was that many yeares back we worked with OH projectors that had big Mirrors inside, and we was teached to never never toutch them. we also work with Ricoh. I v been Ricoh tech since 1997.
regards
Lars

[rsyarcia]

ok, thank you..

[morgansterne]

Still working on this issue and I will post here a solution when its done.

[rsyarcia]

we're waiting for that sir!!

[morgansterne]

solution

apparently the other tech who followed up for me replaced the lens block CCD. Makes me feel a little better since that is the 2nd time it had to be replaced on that particular machine. Maybe it wasn't me, maybe it's just that machine likes to eat lens block assemblies.
Morgan

[tcs04]

apparently the other tech who followed up for me replaced the lens block CCD. Makes me feel a little better since that is the 2nd time it had to be replaced on that particular machine. Maybe it wasn't me, maybe it's just that machine likes to eat lens block assemblies.
Morgan

Not the old AF1224 CCD problem again!?

[TonerMunkeh]

I've had a few models of this age with duff lens block assemblies, one MP2550 and two MP4000's.

[morgansterne]

That was before I was a tech, but I understand that the af1224 problems were very similar to the problem I had. I have noticed these c4500's etc. are pretty sensitive in the optics dept. Lines show up sometimes only in color mode suggesting there's something on the filter (do these have a physical filter to split the colors or is it software?) but you clean off the mirrors and it's gone.