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Monitoring & Reporting Tools 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 Monitoring & Reporting Tools flashcards as text

  1. A spectrophotometer differs from a densitometer primarily because it:

    Answer: Captures full spectral reflectance data across visible wavelengths

    A spectrophotometer measures reflectance at each wavelength across the visible spectrum, enabling full colorimetric analysis beyond simple density.

  2. In GMI process monitoring, what is the significance of TVI (Tone Value Increase)?

    Answer: It quantifies the difference in tone value between a printed dot and its file specification

    TVI, equivalent to dot gain in ISO terminology, measures how much a printed tone value exceeds the original digital tone value.

  3. Which type of chart is most commonly used in statistical process control (SPC) to monitor press density over time?

    Answer: X-bar and R chart

    X-bar and R charts track the mean and range of measurements over time, making them ideal for monitoring press density stability during a run.

  4. What is the primary function of a proofing system in a GMI-certified workflow?

    Answer: To simulate the expected press output as a contract-quality color reference

    A proofing system produces a color-accurate simulation of the expected press output, serving as the approved reference against which press sheets are compared.

  5. When monitoring print quality with a closed-loop system, which component automatically adjusts the press?

    Answer: The feedback control system linked to inline measurement

    A closed-loop system uses inline measurement sensors that feed data back to control systems which automatically make press adjustments without operator intervention.

  6. Which measurement geometry is specified in ISO 13655 for characterizing printing inks using spectrophotometry?

    Answer: 0°/45° or 45°/0°

    ISO 13655 specifies 0°/45° or 45°/0° measurement geometry to ensure consistent, reproducible color measurements across different instruments.

  7. In a GMI monitoring report, 'trapping' refers to:

    Answer: The ability of a wet ink to accept a subsequent overprinted ink

    Trapping measures how efficiently one wet ink layer accepts a subsequent ink printed on top, affecting color accuracy in multicolor printing.