Xerox Versant 80 - How to achieve good solids on a 640mm Long Sheet

[sidneykidney]

When I feed a long sheet (640mmx320mm) through the bypass Tray 5 on my Xerox Versant 80, the Xerox only allows me to print at a maximum paper weight of 177-220gsm but my sheet weight is 300gsm Uncoated. My problem is, I'm trying to slow the Xerox down by feeding at a slow speed on cast coated paper but it makes no difference. The solid red on my sheets comes out with a very bad mottle and loot magenta!!!! Anyone got any Ideas!!! (Picture attached shows a sample printout on 160gsm Uncoated paper on the right which is what I'm trying to achieve and 300gsm on the left which is what I'm currently getting)

 

[PricelineNegotiator]

Create a custom paper profile, maybe change the transfer settings and use coated paper setting as a boost?

 

[sidneykidney]

Thanks for the tip PricelineNegotiator.

Problem solved!!!...it was the paper, which seems a bit strange because I've run this job 3 times before without any problems.

I was using a 300gsm Inspira Ucoated and decided to try something a bit smoother. It came out perfect straight away. I confirmed this by sneaking in a sheet of Inspira in the middle of the print job and it came out mottled. The moment it fed the smoother sheet, it was perfect again!!!!

 

[DYP]

Different sheets will need different transfer voltages, especially the heavier weights.

 

[sidneykidney]

Different sheets will need different transfer voltages, especially the heavier weights.

Thanks, I found that out the hard way but at least I've learnt something from this experience

 

[DYP]

Yes and heat and humidity will change that as well. I am running some 13 x 26 sheet right now that the transfer voltage needed to be upped 20 point from where it was last time I printed the same sheet. And often times when changing the 2nd BTR the transfer voltage will need to be adjusted.

 

[Shaare]

Create a stock for it and run the images transfer on a 11x17 of that stock at 220 gsm uncoated.
Then create your 26" stock and assign the same uncoated 220 and those image transfer numbers.
Voila!

 

[DYP]

Create a stock for it and run the images transfer on a 11x17 of that stock at 220 gsm uncoated.
Then create your 26" stock and assign the same uncoated 220 and those image transfer numbers.
Voila!

I would be careful about doing it that way. The engine runs different with 26" stock so test that setting before you print. A good way to test for correct transfer voltage is to create a 100% Cyan and 100% Magenta document and print with color management turned off. Not sure on the 180 if you have the clean toner dialog, if you do you can print 100% C and M from there. If it is motley looking you voltage is to low if it is to high you will get white spots.