9-B

Question 1

What are the main types of print devices discussed?

Answer 1

Laser, inkjet, thermal, impact, and 3-D print devices

These types cover a range of technologies used for different printing needs.

Question 2

What is the first stage of the laser print process?

Answer 2

Processing Stage

In this stage, the printer’s formatter board processes data to create a bitmap of the page.

Question 3

What does the primary charge roller (PCR) do in the charging stage?

Answer 3

Applies a uniform -600 V electrical charge across the drum’s surface

The PCR is essential for preparing the imaging drum for the printing process.

Question 4

In the exposing stage, what happens to the photosensitive imaging drum?

Answer 4

Loses its charge when exposed to light

This stage involves the laser firing light pulses to neutralize the charge selectively.

Question 5

What is the role of the developer roller in the developing stage?

Answer 5

Feeds toner onto the photosensitive drum

The developer roller is crucial for transferring the toner to areas of the drum that have been neutralized.

Question 6

What is the purpose of the transferring stage in laser printing?

Answer 6

Moves toner from the drum onto the print media

This stage includes mechanisms that ensure only one sheet of paper is fed at a time.

Question 7

What does the fusing stage do?

Answer 7

Melts toner onto the surface of the paper

The fuser unit uses heat and pressure to bond toner to the paper.

Question 8

What is the cleaning stage in the laser printing process?

Answer 8

Removes any remaining toner particles from the photosensitive drum

This ensures the drum is ready for the next print cycle.

Question 9

True or False: Color laser printers use a single toner cartridge for all colors.

Answer 9

False

Color laser printers typically use separate cartridges for each CMYK color.

Question 10

What should you do when performing maintenance on a printer?

Answer 10

Unplug the printer from the power supply

Safety is essential when handling printer components.

Question 11

Fill in the blank: When loading new paper, position the media guides at the _______.

Answer 11

Edges of the loaded stack

This helps the printer detect the paper size correctly.

Question 12

What should you do when toner is low in a laser printer?

Answer 12

Replace the toner cartridge

The printer will display a status message when toner is low.

Question 13

What is a maintenance kit for a printer?

Answer 13

A set of replacement feed rollers, transfer roller, and fuser unit

It is necessary for maintaining proper printer operation.

Question 14

What are the two main types of inkjet print head technologies?

Answer 14

• Charge (piezoelectric) method
• Thermal method

Different manufacturers use different technologies in their inkjet printers.

Question 15

How do thermal inkjet print heads operate?

Answer 15

Heat ink at each nozzle to create a bubble that sprays ink

This method is common among brands like HP and Canon.

Question 16

What is the function of the carriage system in an inkjet printer?

Answer 16

Moves the print head back and forth over the paper

This system is integral to building up the image line by line.

Question 17

What is a common maintenance task for inkjet printers?

Answer 17

Replacing or refilling ink cartridges

Inkjets require frequent cartridge changes due to high ink consumption.

Question 18

True or False: Most inkjet printers have larger paper trays than laser printers.

Answer 18

False

Inkjets typically have smaller paper trays, requiring more frequent restocking.

Question 19

When should you replace an inkjet cartridge?

Answer 19

When the printer’s driver software indicates it is empty

The printer will prompt for replacement based on ink level sensors.

Question 20

What is the purpose of sensors in inkjet printers?

Answer 20

To detect the level of ink remaining

Sensors help manage ink usage and prompt replacement when necessary.

Question 21

How many reservoirs does a color inkjet printer typically need?

Answer 21

At least four reservoirs for each of the CMYK inks

Some printers may have separate cartridges for black and colored ink.

Question 22

What maintenance operation is performed when output is skewed in an inkjet printer?

Answer 22

Print head alignment

This is typically done automatically when replacing ink cartridges.

Question 23

What is the primary function of print head cleaning in inkjet printers?

Answer 23

To fix a blocked or dirty nozzle

A blocked nozzle can cause missing lines in printed output.

Question 24

True or False: Thermal printers use a heating element to create images on paper.

Answer 24

True

Question 25

What type of thermal printer is commonly used for high-volume barcode and label printing?

Answer 25

Direct thermal printer ## Footnote These printers typically support 200–300 dpi.

Question 26

What type of paper is required for direct thermal printing?

Answer 26

Special thermal paper that reacts to heat ## Footnote The paper changes color when heated by the printer's element.

Question 27

Fill in the blank: When replacing a paper roll in a thermal printer, ensure the shiny, heat-sensitive print side is facing _______.

Answer 27

outward

Question 28

What can cause a build-up of paper dust in a thermal printer?

Answer 28

Ripping the paper across serrated teeth ## Footnote This can lead to debris lodging in the mechanism.

Question 29

How do impact printers create marks on paper?

Answer 29

By striking an inked ribbon against paper ## Footnote Dot matrix printers are a common type of impact printer.

Question 30

What types of paper can impact printers use that laser and inkjet printers cannot?

Answer 30

* Plain paper * Carbon paper * Tractor-fed paper

Question 31

What is the purpose of a carbon paper in impact printing?

Answer 31

To make multiple copies of a document in the same pass ## Footnote This is often referred to as a carbon copy.

Question 32

What is the imaging process of a 3-D printer?

Answer 32

Builds a solid object from successive layers of material ## Footnote Materials can include plastic, rubber, carbon fiber, or metal alloys.

Question 33

What is the most common type of 3-D printing process?

Answer 33

Fused filament fabrication (FFF) ## Footnote Also known as fused deposition modeling (FDM).

Question 34

What is the function of the extruder in a 3-D printer?

Answer 34

Draws filament from the cold end to the hot end for melting and extrusion ## Footnote It is equivalent to a print head in an inkjet printer.

Question 35

What are the two most popular plastics used as filament in 3-D printing?

Answer 35

* Polylactic acid (PLA) * Acrylonitrile butadiene styrene (ABS)

Question 36

What safety considerations should be made for a 3-D printing facility?

Answer 36

Accessible only to trained users ## Footnote High temperatures and sharp tools are involved in the process.

Question 37

What should be done before installing a new toner cartridge into a printer?

Answer 37

Follow the manufacturer's instructions ## Footnote This ensures proper installation and function.

Question 38

What components are typically provided as part of a laser printer maintenance kit?

Answer 38

Toner cartridges, drum units, and maintenance items ## Footnote Specific contents can vary by manufacturer.

Question 39

How should you resolve a jam in a thermal printer caused by a label?

Answer 39

Remove the jammed label and check for any remaining debris ## Footnote Proper loading and handling of labels can prevent jams.

Question 40

What considerations should be made for locating a 3-D printer?

Answer 40

* Stable, vibration-free floor * Dust-free, humidity-controlled surroundings