Ricoh 9100 Ghosting?

[tpmar]

I would yield to Msager on this one. Its kind of hard to say from the Pic but is the line in the exact same spot every time and does it repeat any where else on the sheet?

Yeah, same spot and on both sides, but again, not always both sides, and some sheets are OK both sides, some have it on one side or the other and some have it only 1 side. And I've seen it on both coated and uncoated stock but most noticeable on gloss coated stock. Was wondering what does the "Photoconductor Refreshing do? Or the "Developer Refreshing" or the "Charger Cleaning"?

 

[Manafaith]

Well this is my weekly procedure that takes care of 90% of any and all issues. Login in to Adjustment settings for skilled operators. Go to Machine image quality and run DEMS. Then under Maintenance: Execute a Charge Cleaning. Then a Photoconductor Refreshing then a developer refreshing then a full belt smoothing. Exit out and go to maintenance and run a color registration and then Calibrate whatever stock you are running. Not sure if this is overkill or not but like I said it seems to take care of the majority of problems that arise. The issue you are having could possible go away with a charger cleaning and a photoconductor refresh. Good luck and let me know how that goes

 

[Manafaith]

and PS on above comment. Sometimes the Cure all on this machine is a simple "shut it down Completely" let it sit a couple and fire back up. It will run itself through a bunch of checks and sometimes naturally fix an issue you may be having

 

[tpmar]

Well this is my weekly procedure that takes care of 90% of any and all issues. Login in to Adjustment settings for skilled operators. Go to Machine image quality and run DEMS. Then under Maintenance: Execute a Charge Cleaning. Then a Photoconductor Refreshing then a developer refreshing then a full belt smoothing. Exit out and go to maintenance and run a color registration and then Calibrate whatever stock you are running. Not sure if this is overkill or not but like I said it seems to take care of the majority of problems that arise. The issue you are having could possible go away with a charger cleaning and a photoconductor refresh. Good luck and let me know how that goes

Great information! Thanks buddy, I appreciate it!

 

[tpmar]

and PS on above comment. Sometimes the Cure all on this machine is a simple "shut it down Completely" let it sit a couple and fire back up. It will run itself through a bunch of checks and sometimes naturally fix an issue you may be having

Actually it's still there but less often and less noticeable. Still nice to have a good maintenance routine, thank you for that. I'll have to get my tech in here next week and get to the bottom of this. Have a HAPPY NEW YEAR!!!

 

[Manafaith]

You too and good luck....thats what service is for I would guess that pulling out your chargers and cleaning them would be a good step but I usually let my service guys do all that stuff for me unless I am slow and bored

 

[msaeger]

Maybe I am using the wrong terminology. I am having white spots inside of a color fill. It only occurs on one type of paper but as soon as I am able to get the humidity up it will usually take care of itself. When I get in every morning the humidity is sitting around 15% which is difficult to deal with. It is always a battle during the winter months here in the great white northwest

Have you tried textured for the paper type? or adjusting the paper transfer current?

 

[msaeger]

Yeah, same spot and on both sides, but again, not always both sides, and some sheets are OK both sides, some have it on one side or the other and some have it only 1 side. And I've seen it on both coated and uncoated stock but most noticeable on gloss coated stock. Was wondering what does the "Photoconductor Refreshing do? Or the "Developer Refreshing" or the "Charger Cleaning"?

Photoconductor refresh is cleaning and lubing the drums, developer refresh creates patches of toner to use up the toner in the developer mix and get new toner in there, charger cleaning just runs the cleaner on the corona units to clean the wires.

 

[msaeger]

I've had it for about 5 weeks. The first 2 days I had a trainer with me (and my boss) but of course I had to keep up with getting production out during this time so I missed a lot of stuff. My boss was with the trainer the whole time so I have to look to him to fill in the gaps for me. It seems like my timing is more like you would prefer because I'll be running about 2 months before I get the advanced training. As it is now I'm helpless when it comes to trouble shooting and coming up with work-arounds which is very frustrating! Of course I've got the gang here at PrintPlanet which is great. Currently I'm fighting some sort of a scuff, toner mark on the gear side, right about the middle of a 12 x 18 sheet, the only thing I know how to do is that belt smoothing which doesn't seem to help at all with this. See attached, any suggestions as to what this is and how to get rid of it. Sometimes it looks mostly cyan others more of a combination of Y and M. Roughly every other sheet, but not always. Thanks in advance.

I can't really tell from that picture but if you are seeing a mix of colors I would guess the paper transfer belt unit cleaning.

FYI they actually have good descriptions off the items in the skilled operators menu and paper catalog advanced settings if you look in the TCRU adjustment manual here

http://support.ricoh.com/bb_v1oi/pub_e/oi_view/0001057/0001057597/view/adjustment/int/index.htm

They also have slide shows of how to replace all of the TCRU items as well.

http://support.ricoh.com/bb_v1oi/pub_e/oi_view/0001057/0001057597/view/replacement/int/index.htm

Read through all this stuff then when the trainer comes you can really come up with some hard stuff to ask about

 

[Demago]

Put the fuser temperature to cca. 150 degrees.

 

[Manafaith]

Have you tried textured for the paper type? or adjusting the paper transfer current?

Yes, I have bumped the transfer currents up considerably. It does definitely help but doesn't completely resolve the issue. The only problem I have with "paper type" is that this particular stock is used for one customer and I had to build a custom output profile for all of their work to look exactly like it does off of our offset presses. Changing the paper type will mess with that particular profile. Once I am able to get the humidity up it will usually take care of itself though.

 

[tpmar]

I can't really tell from that picture but if you are seeing a mix of colors I would guess the paper transfer belt unit cleaning.

FYI they actually have good descriptions off the items in the skilled operators menu and paper catalog advanced settings if you look in the TCRU adjustment manual here

http://support.ricoh.com/bb_v1oi/pub_e/oi_view/0001057/0001057597/view/adjustment/int/index.htm

They also have slide shows of how to replace all of the TCRU items as well.

http://support.ricoh.com/bb_v1oi/pub_e/oi_view/0001057/0001057597/view/replacement/int/index.htm

Read through all this stuff then when the trainer comes you can really come up with some hard stuff to ask about

Thank you Msaeger, that's some great information. I got through today by keeping this mostly out of the print area, tech is coming tomorrow and is bringing me another Paper Transfer Belt Unit. Once we get this figured out I'll post whatever is causing this. Ran about 4000 sheets through today, at the start it was fairly bad, but the longer I ran the less I saw of it?

 

[tpmar]

Put the fuser temperature to cca. 150 degrees.

Thank you, that gives me something else I can try.

 

[tpmar]

Thank you Msaeger, that's some great information. I got through today by keeping this mostly out of the print area, tech is coming tomorrow and is bringing me another Paper Transfer Belt Unit. Once we get this figured out I'll post whatever is causing this. Ran about 4000 sheets through today, at the start it was fairly bad, but the longer I ran the less I saw of it?

I haven't forgotten about following up with this, my tech has swapped out a lot of parts. I have new drums in Magenta and Black, the paper transport belt has been replaced, 2 cleaning units replaced, and all 4 coronas. Even after all o that the print problem in that picture I posted still shows up sometimes, and on top of that we had a band parallel to the direction of travel and for that I'm waiting on a new developer unit which I should have tomorrow. My tech is surprised because this machine is so new. Although we didn't get it brand new, it had about 18,000 clicks on it and was being used as a "demonstrator" whatever that means. I know the guards are all scuffed up and scratched up. If we keep replacing parts at this rate sooner or later I will have a brand new one!