Thermal/Virtual/3D Flashcards Preview

IT Essentials Chapter 8 > Thermal/Virtual/3D > Flashcards

Flashcards in Thermal/Virtual/3D Deck (20)
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1
Q

Where are thermal printers common?

A

In cash machines/registers and old fax machines.

2
Q

What are the qualities of thermal paper?

A

The paper has a waxy quality.
It goes black when heated, which is where the ‘print’ comes from.
It is fed through the assembly and heated to get this quality.
Electrical current goes through the print head in order to form these prints.

3
Q

What are the advantages of thermal printers?

A

They last a long time due to the few moving parts.
They are quiet.
There is no cost for toner/ink.

4
Q

What are the disadvantages of thermal printers?

A

Thermal paper is expensive.
It is stored at room temp and degrades over time.
They are poor quality and don’t print colour.

5
Q

How do impact printers work?

A

They have print heads that strike an inked ribbon o imprint characters on paper.
They have print heads that are pins surrounded by electromagnets.
When energized, the pins push the inked ribbon forward. The number of pins is either 9 or 24, and it determines the quality of the print.
The highest quality is referred to as near letter quality (NLQ)

6
Q

What are the qualities of Impact printers?

A

They are either dot matrix or daisy wheel printers.
Dot matrix used pins.
Most use continuous feed paper, otherwise known as tractor feed.
A large roller, called the platen stops the paper from slipping.

7
Q

What are the advantages of impact printing?

A

They aren’t very costly.

They can use continuous feed or normal sheets of paper and can print carbon copies.

8
Q

What are the disadvantages of impact printing?

A

They are noisy.
They are low resolution.
They have low colour printing capabilities.

9
Q

What is virtual printing?

A

This is the process of sending a print request, not through the local network, but instead to a remote destination through the cloud.

10
Q

What are the four forms of virtual printing?

A

Print to PDF.
Print to File.
Print to XPS.
Print to Image.

11
Q

What is XPS?

A

The XML Paper Specification (XPS) was intended to be an alternative to PDF by Microsoft.

12
Q

How does the print to file work?

A

Originally, they only saved as a .prn file.
This file could be printed without opening the original document.
However, more formats are available nowadays.

13
Q

What formats does the print to image cover?

A

Formats such as JPG or TIFF.

14
Q

What are the features of 3D printing?

A

They typically use plastic filaments to print.
They are a form of additive manufacturing machine, creating prints in layers of material.
This is in contrast to subtractive manufacturing, such as wood carvings/prints.

15
Q

What are the 5 different parts of 3D printers?

A
Filament
Feeder
Hotend Nozzle
Axis
Print Bed
16
Q

What is the purpose of the filament within a 3D printer?

A

This is the material used to make objects.
Common forms are ABS, PLA and PVA.
Some use Nylon, metal or wood. Check your manual to determine the correct material.

17
Q

What is the purpose of the feeder within a 3D printer?

A

This is what feeds the filament to the nozzle. It pulls it down to be heated and utilized.

18
Q

What is the purpose of the Hotend Nozzle within a 3D printer?

A

This is what extrudes the filament, once it is at the correct temperature.

19
Q

What is the purpose of the axis within a 3D printer?

A

This is what the hotend nozzle travels along, controlling its position.
They are vertical and horizontal

20
Q

What is the purpose of the print bed within a 3D printer?

A

This is where the filament will go to make the print.