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Mobile Devices 1 > Mfd Printers 3 > Flashcards

Mfd Printers 3 Flashcards

1
Q

What is the purpose of the transfer corona in a laser printer?

A

It applies a charge to the paper to attract toner from the drum.

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2
Q

What does a developer roller do in a laser printer?

A

It transfers toner from the cartridge to the drum.

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3
Q

Why is the photoconductive drum in a laser printer sensitive to light?

A

Exposure to light discharges the drum, creating an image area for toner to adhere.

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4
Q

What is the difference between a virtual printer and a physical printer?

A

A virtual printer outputs to a file format (e.g., PDF) instead of paper.

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5
Q

What is the role of the high-voltage power supply in a laser printer?

A

To generate the static charges needed for the drum and transfer process.

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6
Q

What is dithering in printing?

A

A process that uses patterns of dots to simulate different shades and colors.

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7
Q

What does GDI stand for in printing?

A

Graphics Device Interface, a Windows component for rendering print jobs.

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8
Q

What is the function of halftoning in printing?

A

To create the illusion of continuous-tone images using dots of varying size or spacing.

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9
Q

How does an electrostatic plotter differ from a standard printer?

A

It uses electrostatic charges to create images, primarily for CAD applications.

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10
Q

What is banding in printing?

A

Visible horizontal lines caused by inconsistent ink or toner application.

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11
Q

What is the primary cause of a 50.4 error in a laser printer?

A

A fuser-related error, often due to a power issue.

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12
Q

What does the term ‘print emulation’ refer to?

A

The ability of a printer to simulate another printer’s language or features.

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13
Q

What is the purpose of a separation pad in a printer?

A

To separate individual sheets of paper from a stack.

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14
Q

How does a piezoelectric inkjet printer create ink droplets?

A

It uses vibrations from a piezoelectric crystal to eject ink.

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15
Q

What is the purpose of a charge roller in a laser printer?

A

To apply an initial charge to the drum uniformly.

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16
Q

What is the purpose of firmware in printers?

A

It controls the printer’s hardware functions and provides operational instructions.

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17
Q

What is overprinting in color printing?

A

Layering one color over another to create specific shades or effects.

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18
Q

What is the main purpose of a RIP in high-end printers?

A

Raster Image Processor converts vector data to raster data for printing.

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19
Q

What is the significance of the ICC profile in printing?

A

It defines color management settings to ensure accurate color reproduction.

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20
Q

What is duplex scanning with an ADF?

A

Scanning both sides of a document automatically using the Automatic Document Feeder.

21
Q

What does WSD stand for in printer networking?

A

Web Services for Devices, a protocol for printer discovery and configuration.

22
Q

What is the difference between direct thermal and thermal transfer printing?

A

Direct thermal uses heat-sensitive paper, while thermal transfer uses a ribbon to transfer ink.

23
Q

What is continuous ink supply system (CISS) technology?

A

A system that feeds ink directly from reservoirs to the print head, reducing the need for cartridge replacement.

24
Q

What is the purpose of a drum cleaning blade?

A

To remove excess toner from the drum after each print cycle.

25
Q

What does the term ‘page description language’ (PDL) refer to?

A

A language that defines the layout and content of a printed page, such as PostScript or PCL.

26
Q

What is the purpose of a fuser roller in a laser printer?

A

To press and melt toner onto the paper, creating a permanent bond.

27
Q

How does an inkjet printer achieve grayscale printing?

A

By varying the size and density of black ink droplets.

28
Q

What is a duplex assembly in printers?

A

A component that flips paper for double-sided printing.

29
Q

What is ‘calibration’ in relation to color laser printers?

A

Adjusting color accuracy and alignment between print cartridges.

30
Q

What is a common issue with high-humidity environments and laser printers?

A

Paper absorbs moisture, leading to jams and poor toner adhesion.

31
Q

What is the primary function of the primary corona wire?

A

To charge the drum to prepare it for imaging.

32
Q

What does ‘media type’ refer to in printer settings?

A

The type of material being printed on, such as plain paper, cardstock, or labels.

33
Q

What is an HVPS in laser printers?

A

High-Voltage Power Supply, which provides power for the charging and transfer processes.

34
Q

What is the purpose of a formatter board in printers?

A

It processes print jobs and converts data into printable output.

35
Q

What is the difference between a long-edge and short-edge duplex setting?

A

It determines the orientation of the page when printing on both sides.

36
Q

What is the purpose of a perforation line in continuous form printing?

A

To allow easy separation of printed pages.

37
Q

What is the main advantage of piezoelectric over thermal inkjet technology?

A

It supports a wider range of ink types, including those with higher viscosities.

38
Q

What does the term ‘finisher’ refer to in printing?

A

An optional printer component for tasks like stapling, hole-punching, and collating.

39
Q

What is bleed compensation in printing?

A

Adjusting the document’s margins to account for edge trimming.

40
Q

What is a ‘duty cycle’ in relation to printers?

A

The maximum number of pages a printer is designed to handle per month.

41
Q

What is a ‘printer buffer,’ and why is it important?

A

A temporary memory area that holds print job data before processing.

42
Q

What is the primary role of a transfer belt in color laser printers?

A

To layer different toner colors onto a single sheet of paper.

43
Q

What is ‘line printing,’ and where is it used?

A

A high-speed printing method for text, often used in mainframe environments.

44
Q

What is skewing in the context of printers?

A

When paper feeds unevenly, causing misaligned prints.

45
Q

What does ‘toner density’ refer to in laser printers?

A

The concentration of toner applied to the page for optimal print quality.

46
Q

How do color laser printers mix colors?

A

By layering cyan, magenta, yellow, and black toner in precise amounts.

47
Q

What is a print server queue?

A

A list of print jobs waiting to be processed by a network printer.

48
Q

What is a platen cover used for in scanners?

A

To hold documents flat against the scanning glass for optimal quality.

Mobile Devices 1 (37 decks)

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