GMI GMI Color Management & Quality Standards 2

Question 1

What is dot gain in the context of GMI print quality standards?

Accepted Answer

The increase in dot size from film to press output

Answer

Dot gain refers to the increase in halftone dot size that occurs when ink spreads on the substrate, affecting tone reproduction.

Question 2

In GMI quality audits, what is the role of a press fingerprint?

Accepted Answer

To establish baseline color and tone reproduction characteristics of a specific press

Answer

A press fingerprint documents the unique color and tonal behavior of a specific press, enabling accurate profiles and consistent output.

Question 3

Which color space is device-independent and used as the connection space in ICC color management?

Accepted Answer

CIELAB

Answer

CIELAB (L*a*b*) is a device-independent color space used as the Profile Connection Space (PCS) in ICC color management workflows.

Question 4

What does soft proofing allow a prepress operator to do in a GMI-compliant workflow?

Accepted Answer

Simulate the appearance of press output on a calibrated display

Answer

Soft proofing uses a calibrated display and ICC profiles to simulate how the final printed piece will look, reducing the need for physical proofs.

Question 5

In GMI certification, what is the maximum acceptable ΔE tolerance for a contract proof compared to press output under G7 methodology?

Accepted Answer

ΔE ≤ 2.0

Answer

G7 methodology typically requires a ΔE of 2.0 or less between a contract proof and press output for acceptable color conformance.

(GMI) Graphic Measures International Certification Practice Test