Performance Optimization Flashcards
7 cards from real GMI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Performance Optimization flashcards as text
Which press fingerprinting step is essential before building an ICC profile to ensure optimal performance characterization?
Answer: Linearizing the press to achieve consistent dot gain
Linearization establishes a stable, repeatable baseline on the press so the ICC profile accurately represents the device's true color behavior.
In graphic reproduction, 'trap width' is optimized primarily to compensate for:
Answer: Mechanical misregistration between ink units on press
Trapping creates small overlaps at color boundaries to prevent white gaps caused by slight misregistration between ink units during printing.
When optimizing a print workflow for throughput, which scheduling approach reduces press makeready time most effectively?
Answer: Grouping jobs by substrate type and ink set
Grouping jobs by substrate and ink set minimizes the number of wash-ups, paper changes, and ink adjustments needed between jobs.
A GMI workflow requires consistent gray balance across different output devices. The primary tool used to verify and achieve this is:
Answer: A spectrophotometer measuring L*a*b* values of gray patches
A spectrophotometer measuring L*a*b* values of CMY gray patches provides device-independent verification of true neutral gray balance across output devices.
Which halftone screening technology offers the best performance advantage when printing fine detail with minimal moiré risk?
Answer: FM (frequency modulated) stochastic screening
FM stochastic screening uses randomly placed dots rather than a regular grid, eliminating the angular relationships that cause moiré patterns.
To maximize color consistency in a GMI-certified multi-site production environment, organizations should implement:
Answer: A centralized color management system with shared ICC profiles and approval workflows
A centralized color management system with shared profiles and approval workflows ensures all sites operate from the same color standards and verification procedures.
When evaluating proof-to-press match performance, which metric is the industry-standard tolerance for Delta E in GMI and G7 workflows?
Answer: Delta E ≤ 2 average, ≤ 4 maximum for process colors
G7-aligned workflows target an average Delta E of 2 or less with a maximum of 4 for process colors, defining acceptable proof-to-press color match.