Epson 7900 EFI ColorXF iterations

[Skinflint]

Does anyone know how to perform iterations with this setup?
I need to know how to calibrate my two machines which had been G7 aligned
a few years ago. I am noticing that identical images proofed from both devices
appear to look different. Actually, the neutral grays appear more yellow with
one versus the second unit.
What type of calibration or iteration should I be performing and how often?

Thanks

[Skinflint]

Does anyone know how to iterate the Epson 7900 with EFI ColorXF?

[Skinflint]

no one has experience with this software?

[Colorblind]

Just in case, have you tried this forum: EFI Colorproof XF/EFI Fiery XF - EFI Proofingforums

[Tommyjt]

In EFI Color Manager select Optimize Profile.
In the next window choose either the EPL file you want to optimize or you can retrieve it from the actual workflow.
If you choose the EPL file you will need to select a reference profile, I would assume you want GRACoL.
I recommend you choose Create New Lab Correction Profile in Optimization Method.
Select the Paper White Settings you want and click Next.
From there is should be easy to follow along with the software, printing, measuring, etc.

[kevingracia]

I want to ask, Can I use some other refill brand for printer. Do they have any adverse effect on machine or printing quality.
cartridges for hp z6100