Random color change

[DoubleDiamond]

We have a sp-540v using versaworks. For the last three days I have been dealing with the printer randomly changing a bright yellow background to a greenish yellow. I think it's happening in the rip. To make a very long story short... other jobs go through just fine, but these tiff files do not. I even get it to print a test print at 10% and see a bright yellow. The only change I make is going to 100% and it prints greenish. I have a great tech who has no idea what it could be, but is sending a versaworks cd to dump and reload the program. He and I have gone through the typical tests and anything I send it from ai as an eps or pdf prints fine, but not this job from ps. I tried printing previously printed files for the same customer that are similiar and they too print greenish 9 out of 10 times. I am thinking damper, but I can print large solid boxes of bright yellow all day. It really seems to be in the rip. I have opened the files and saved as pdf, but still get greenish. The fact that two times the 10% is fine then greenish when enlarged has me flustered. Customer is patient, but I am not so much!?!
Any ideas or help is apreciated, Joe

 

[splizaat]

have you tried opening and saving the tiff as something like a JPG and seeing if it still does it?

 

[DoubleDiamond]

Yes, and it did the same thing. I tried pdf too. Sometimes it prints small test prints fine or goes to greenish. Other jobs are printing fine though?!? I dunno.

 

[Cyw]

I'm confused......if everything prints fine EXCEPT the files from this one specific customer, wouldn't logic tell you it's the way THEY are creating/saving the files.....and not something on your end?

 

[ColoPrinthead]

I'm confused......if everything prints fine EXCEPT the files from this one specific customer, wouldn't logic tell you it's the way THEY are creating/saving the files.....and not something on your end?

This is a good point. I would check the color spaces of the TIFFs in PS.

 

[DoubleDiamond]

Not files from the customer, but files for this customer/job. We created the files in ps. We have done two wraps successfully and this problem is new. It happens with the previous used files too. We have opened them to test them and they too now print greenish.
By the way... what is the best and brightest yellow to get from photoshop? I will post this one on it's own too.
Many thanks.