hardMultiple ChoiceObjective-mapped
220-1201 Practice Question: A technician is troubleshooting an impact printer…
A technician is troubleshooting an impact printer that is producing faint characters on multipart forms. The ribbon is new, and the print head is clean. The forms are properly aligned. Which adjustment should be made?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Adjust the platen gap to bring the print head closer to the paper
Faint characters on multipart forms with a new ribbon and clean print head indicate insufficient impact force. Impact printers have a platen gap adjustment that controls the distance between the print head and the platen. If the gap is too wide, the pins cannot strike through all layers effectively.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Increase the print head temperature
Why it's wrong here
Increasing the print head temperature is irrelevant for an impact printer because these devices operate on a mechanical principle, not thermal. Impact printers utilize a print head with small pins that strike an ink ribbon against the paper to form characters. Unlike thermal or laser printers, heat is not involved in the image creation process, making temperature adjustments inapplicable and ineffective for troubleshooting.
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Replace the platen
Why it's wrong here
While a severely worn or damaged platen can indeed cause print quality issues, replacing it is a significant and often unnecessary intervention. The platen provides the firm backing against which the print head pins strike the paper. Before resorting to component replacement, which is more invasive and costly, standard troubleshooting protocols dictate attempting simpler, non-destructive adjustments like the platen gap first to resolve common printing problems.
- ✓
Adjust the platen gap to bring the print head closer to the paper
Why this is correct
Adjusting the platen gap to bring the print head closer to the paper is the correct action because it directly increases the impact force of the print pins. This enhanced force ensures that the pins strike the ink ribbon and paper with sufficient pressure to create clear, legible impressions, particularly crucial when printing on multipart forms where the impression must transfer through multiple carbon or carbonless layers effectively.
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Change the paper thickness setting to a thicker setting
Why it's wrong here
Changing the paper thickness setting typically automates the platen gap adjustment, but it may not be precise enough or correctly calibrated for specific troubleshooting scenarios. If the printer is already set for the correct paper thickness and still exhibits issues, or if the automatic adjustment is insufficient, a manual platen gap adjustment provides finer control. Relying solely on the thickness setting might not resolve a specific mechanical issue where the gap is simply too wide for effective impact.
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