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When a user tries to print a document on a laser printer, vertical lines appear on the printout. Which of the following should the technician replace?
A customer wants to archive a large number of photos and does not plan to retrieve them often. What is the least expensive storage option per gigabyte?
A user is printing a part with a thermoplastic polyurethane (TPU) filament on a 3-D printer. The first layer on every print job is not adhering properly. What should the user do to improve adherence on the first layer?
When a user tries to print a document on a laser printer, vertical lines appear on the printout. Which of the following should the technician replace?
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A customer wants to archive a large number of photos and does not plan to retrieve them often. Which of the following should the technician suggest for the least expensive storage option per gigabyte?
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A user is printing a part with a thermoplastic polyurethane (TPU) filament on a 3-D printer. The first layer on every print job is not adhering properly. Which of the following should the user do to improve adherence on the first layer?
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Study Notes
Laser Printer Maintenance
- Vertical lines on a laser printer printout indicate a damaged drum unit.
- The drum unit transfers toner to the paper based on an electrostatic image.
Storage Options
- Hard disk drives (HDDs) are the most cost-effective storage option per gigabyte.
- A 5,400rpm HDD is suitable for archiving large amounts of data that won't be accessed frequently.
- NVMe SSDs, SCSI RAIDs, and 15,000rpm SAS are more expensive options.
3-D Printer Troubleshooting
- The first layer of a 3-D print not adhering properly indicates an issue with filament flow.
- Increasing the filament flow amount (extrusion multiplier) can improve first-layer adhesion by ensuring enough filament is extruded.
- Lowering the print bed temperature can decrease adhesion and lead to warping or curling, especially with TPU filaments.
- Cooling fan adjustments are not a significant factor for first-layer adhesion, and may even cause damage to TPU prints.
- Increasing print speed can worsen adhesion issues with flexible filaments like TPU.
Laser Printers
- Vertical lines on a laser printer printout are usually caused by an issue with the drum unit
- The drum unit is responsible for transferring the electrostatic image to the paper
- Damage or defects on the drum surface cause uneven toner distribution, resulting in vertical lines on printouts
Storage Devices
- 5,400rpm HDD offers the lowest cost per gigabyte, making it ideal for archiving large amounts of data that are not accessed often
- NVMe SSD, SCSI RAID, and 15,000rpm SAS offer higher performance but come at a higher cost per gigabyte
3D Printing
- TPU filament requires adjusting the filament flow amount to ensure proper first layer adhesion on a 3D printer
- Increasing the flow amount ensures that enough filament is extruded to create a strong bond with the print bed
- Lowering the print bed temperature might decrease adhesion
- Adjusting the cooling fan RPM usually has minimal impact on first layer adhesion
- Increasing print speed might worsen the first layer adhesion
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Description
This quiz covers essential maintenance and troubleshooting tips for laser printers, storage options, and 3-D printing issues. Learn about drum unit importance, cost-effective storage types, and how to ensure successful 3-D print adhesion. Test your knowledge and improve your technical skills in these areas.
