LAB Values of CMYK builds

[G_Town]

Is anyone reading LAB values of CMYK builds on press?

[David]

not anymore, we used to over at Quad.
Doing gray balance?

[G_Town]

not anymore, we used to over at Quad.
Doing gray balance?

No we are printing these gift card carriers with varying 4/C backgrounds and another plant is saying they read LAB's from the press OK and run to that on subsequent runs.

I just don't see how accurate that can be?

[Diddler]

Could they be referring to CIP4 or any adjustments made to them when they read a scanned sheet it can give density/lab readings etc.

It would give the press operator the same settings to reprint.
Of course this would only work if it is printed on the same press.