Equipment Maintenance 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 Equipment Maintenance flashcards as text
A digital press technician notices color inconsistency appearing after the machine has warmed up for 30 minutes. What component is most likely causing this thermal drift?
Answer: The fuser roller assembly
Fuser roller thermal drift causes changes in toner adhesion and gloss over time as the assembly reaches operating temperature, leading to color inconsistency.
When replacing an offset press ink roller, what measurement must be verified to ensure correct installation?
Answer: Shore A durometer hardness and roller diameter
Shore A durometer and roller diameter must match OEM specifications to ensure correct nip pressure and ink distribution across the roller train.
In a wide-format solvent printer, what is the function of the media heater zones (pre-heat, print, after-heat)?
Answer: To evaporate solvents and improve ink adhesion at each stage
The three heater zones progressively evaporate solvents from the ink, improving adhesion and enabling faster print speeds without smearing.
During press maintenance, a technician finds the blanket on an offset press has a smashed area. What is the standard corrective procedure?
Answer: Replace the blanket with a new one meeting OEM specifications
A smashed (glazed or permanently compressed) blanket area cannot be restored and must be replaced to maintain consistent nip pressure and print quality.
What does it mean when a flexographic press anilox roller's cell volume is measured significantly below specification?
Answer: The roller cells are plugged or worn and need cleaning or replacement
Below-spec cell volume indicates plugged or worn anilox cells that restrict ink delivery, requiring cleaning or roller replacement.
Which type of maintenance log entry is most useful for identifying recurring press mechanical failures?
Answer: A time-stamped log of symptoms, findings, and corrective actions with component IDs
Time-stamped logs that capture symptoms, findings, corrective actions, and component IDs allow technicians to identify patterns and root causes of recurring failures.
A screen printing press is producing images with jagged edges. After ruling out mesh tension issues, what maintenance item should be inspected?
Answer: Squeegee blade sharpness and durometer
A dull or incorrect durometer squeegee blade causes uneven ink deposit and ragged edges, which can mimic registration or mesh problems.