3.7 Printer consumables Flashcards
Given a scenario, install and replace printer consumables
A printer technician performs maintenance on a roller and wants to make sure that it gets cleaned properly according to standards. What should the printer technician use to clean it?
-Soft cloth
-IPA
-Cold water
-Maintenance kit
IPA
~Use IPA (99% Isopropyl Alcohol solution) and non-scratch, lint-free swabs to clean rollers and electronic contacts. Take care not to scratch a roller.
~When toner spills on skin or clothes, wash it off with cold water. Using hot water is not recommended as heat can open the skin’s pores and allow toner particles to penetrate more easily.
~A maintenance kit contains replacement feed rollers, a transfer roller, and a fuser unit. The technician is not replacing parts, only cleaning the roller.
~Wipe dust and toner away from the printer interior or exterior with a soft cloth, or use a toner-safe vacuum.
Some traditional artists decide to expand their skillset into digital art. After some training and experimenting, they feel ready to start selling their digital art, so they purchase a printer. Unfortunately, the printer color does not match what the artists see on the computer screen. What should they do to fix this?
-Calibrate the display
-Use the OSD
-Ensure they are using 3.5mm jacks
-Use software utilities to cycle pixels
Calibrate the display
~If a computer produces digital art, the artist must calibrate the display to scan devices and print output.
~Audio jacks will not help in this case. Digital visual interface (DVI) and video graphics array (VGA) cannot carry a sound signal, so the computer’s audio ports must connect to the speakers using 3.5mm jacks.
~In the case of dead monitor pixels, software utilities are available to cycle the pixel through a series of relatively extreme color states to reactivate it.
~For a dim image, use the on-screen display (OSD) to check the brightness and contrast controls to ensure someone has not turned them down.
A board game enthusiast wants to print characters for the next campaign to bring an element of realism to the gameplay. The enthusiast uses an SLA 3-D printer but ran out of 3-D “ink.” What should the enthusiast order for replacement?
-Powder
-FFF
-Filament
-Resin
Resin
~Stereolithography (SLA) uses liquid plastic resin or photopolymer to create objects cured using an ultraviolet laser. The most popular plastics are polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS).
~A filament spool supplies the “ink” for common 3-D printers.
~Selective laser sintering (SLS) fuses layers using a pulse laser. A powder creates the object, and it is then lowered into a tank while adding each layer.
~Fused filament fabrication (FFF) is a type of 3-D printer. It is also known as fused deposition modeling (FDM), which lays down layers of filament at a high temperature.
An IT administrator enjoys tinkering with various technologies and has recently purchased a 3-D printer but bought a lower-end model. Which of the following components will the administrator need to calibrate for every print job manually?
-Print Bed
-Build Surface
-Extruder
-Filament
Print Bed
~A print bed or build plate is a flat glass plate onto which the material extrudes. The bed must be leveled for each print job and is usually automated, but cheaper printer models require manual calibration.
~An extruder is the equivalent of a print head in an inkjet. A motor in the extruder draws filament from the “cold end” through to the nozzle, which then melts and squirts onto the object.
~A filament spool supplies the “ink” for common 3-D printers.
~The build surface is a sheet placed onto the base plate to hold the object in position while printing and allow its removal on completion.
A manager wants to print copies of their monthly budget report using the office’s laser printer. A 600V electrical charge occurs across the imaging drum’s surface as the printer starts making the copies. Which specific component caused this electrical spike?
-Developer roller
-Primary charge roller
-Fuser unit
-Transfer belt
Primary charge roller
~The primary charge roller (PCR) conditions the imaging drum in the charging stage. The PCR applies a uniform -600V electrical charge across the drum’s surface.
~From the transfer assembly, the paper passes into the fuser assembly. The fuser unit squeezes the paper between a hot roller and a pressure roller to melt the toner.
~Laser toner is composed of a fine compound of dyestuff and wax or plastic particles. The toner is fed evenly onto a magnetized developer roller.
~Color laser print devices use separate toner cartridges for each additive color. For example, one may use four passes to put each color in turn; others combine the colored toner on a transfer belt and print in one pass.
An apprentice at a printer repair shop watched a senior technician replace a carriage belt. What type of printer is the senior technician performing maintenance on?
-Inkjet printer
-3-D printer
-Thermal Printer
-Laser Printer
Inkjet Printer
~The carriage system on an inkjet printer uses a stepper motor, pulley, and belt (to move the print head) along with a guide shaft (to keep the print head stable) and sensors (to detect the position of the print head).
~A thermal printer does not use a carriage belt. Instead, it is a general term for any device that uses a heating element to create the image on paper.
~3-D printing has very different use cases from printing to paper. However, it is most widely used in manufacturing, especially to create proof-of-concept working models from designs.
~Laser printers are one of the most popular printer technologies for office applications since they are inexpensive, quiet, and fast, producing high-quality output.
An Italian artisan is experimenting with printing digital artwork and has recently purchased a thermal printer. What special specific consideration will thermal printers need?
-Thermal print heads
-Carriage System
-Special Paper
-Laser Toner
Special Paper
~Most direct thermal print devices require special thermal paper containing chemicals designed to react and change color as heated by the heating element within the printer to create images.
~Thermal inkjet print heads are for inkjet printers. In general, thermal inkjet print heads are cheaper and simpler to produce, but the heating elements have a relatively short life.
~Inkjet printers build up the image line by line. A carriage system moves the print head back and forth over the paper.
~Laser printers use laser toner. Laser toner is composed of a fine compound of dyestuff and wax or plastic particles.
An editor at a magazine company has a lifelong dream of starting their own business and being their own boss. The editor created a business plan, acquired funding, and is currently in the stages of buying equipment. The business needs printers that can automatically print on both sides of the pages since manually feeding paper through would not be cost-effective. What type of item should the editor ensure that the printers have?
-Duplexing assembly
-Fuser assembly
-Transfer Belt
-Pickup roller
Duplexing assembly
~When the paper has passed through the fuser and has a duplexing assembly unit installed, it turns over and returns to the developer unit to print the second side.
~Color laser print devices use separate toner cartridges for each additive color. One may use four passes to put each color in turn; others combine the colored toner on a transfer belt and print in one pass.
~The fuser assembly squeezes the paper between a hot roller and a pressure roller so that the toner melts onto the paper’s surface.
~A pickup roller turns against the paper stack, pushing the paper into a feed and separation roller assembly. This assembly allows only one sheet to pass through.
A photo printing company just bought a thermal printer. They expect to use the printer quite frequently and want to ensure that it runs continuously. So they proactively look for signs that maintenance should occur. What should they watch out for, specifically for thermal printers?
-Print head alignment
-Keep a standby replaceable ribbon
-Paper debris
-Carriage system wear
Paper debris
~Each receipt separates by ripping the paper across serrated teeth. However, this process can lead to bits of paper debris lodged in the mechanism if a user does not make a clean slice, and bits of leftover paper fall into the printer.
~Print head alignment is common with inkjet printers. With a skewed output, use the print head alignment function from the printer’s property sheet to calibrate the printer.
~Inkjet printers use carriage systems to build up the image line by line. A carriage system moves the print head back and forth over the paper.
~An impact printer will have some form of a replaceable ribbon.
A chemical engineering specialist is researching what laser toner consists of to reverse engineer it and make a cheaper solution. What will the laser toner consist of?
-Dyestuff
-IPA
-Filament
-Resin
Dyestuff
~Laser toner is composed of a fine compound of dyestuff and wax or plastic particles and is used in laser printers.
~Stereolithography (SLA) uses liquid plastic resin or photopolymer to create objects cured using an ultraviolet laser. The most popular plastics are polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS).
~A filament spool supplies the “ink” for common 3-D printers.
~For laser printer maintenance, use IPA (99% Isopropyl Alcohol solution) and non-scratch, lint-free swabs to clean rollers and electronic contacts. The chemical engineer specialist should take care not to scratch the roller.
A medium-sized organization expands operations and grows the administrative team to keep up with increased business. As part of expanding administrative capabilities for record-keeping, they have purchased an impact printer for its versatility in usefulness. Which of the following types of paper can the organization use? (Select all that apply.)
-Tractor-fed
-Carbon
-Plain
-Thermal
Tractor-fed, Carbon, & Plain
~The organization can use plain paper. It is held firmly against the moving roller (the platen) and pulled through the mechanism by friction as the platen rotates.
~The organization can also use carbon paper (or impact paper). It makes multiple copies of a document in the same pass (hence carbon copy, or “cc”).
~The organization can also use tractor-fed paper. It includes removable, perforated side strips. The holes in these strips secure over studded rollers at each end of the platen.
~Thermal paper is not compatible. Most direct thermal print devices require special thermal paper containing chemicals designed to react and change color as heated by the heating element within the printer.
A graphic artist expands operations to print in-house and saves costs by using their equipment. The artist purchases Energy Star 80 plus rated laser printers and wants to ensure that the power circuits can handle the load. The artist knows that the largest spike in power consumption is when the primary charge roller (PCR) applies a 600W electrical charge across the imaging drum’s surface. What should the artist use for energy consumption calculations for each printer?
-600W
-200-300W
-480W
-750W
750W
~The PCR applies a 750W charge to the imaging drum. An Energy Star 80 Plus compliant power supply unit (PSU) must be 80% efficient at 20–100% load. This means that 0.80 divided into 600 W would give an expected output of 750W.
~The value 600W is how much power it requires, but much of the energy is lost mainly as heat. As a result, energy becomes more expensive cost-wise and with climate impact, so power efficiency is important when selecting PSU.
~The value 480W would be the opposite since 480W is the output when multiplying 0.80 to 600W.
~A standard desktop typically rates at around 200–300W. However, laser printers are not standard desktops.
A worker is watching the printer technician perform maintenance on a laser printer and sees the technician rocking a component back and forth. What maintenance task is the technician working on?
-Low printer ink
-Toner spillage
-Roller issues
-Dust filter
Low Printer Ink
~Removing a printer ink cartridge and rocking it gently from front to back can help get the most out of the cartridge. Frugal departments may continue printing until the actual output starts to dip in quality.
~If toner spills on skin or clothes, wash it off with cold water. Using hot water is not recommended since heat can open the skin’s pores.
~Use IPA (99% Isopropyl Alcohol solution) and non-scratch, lint-free swabs to clean rollers and electronic contacts.
~Follow the manufacturer’s recommendations for regularly replacing the printer’s dust and ozone filters.
An independent contractor won a contract award in which the contractor will have to digitize decades worth of physical files for a state agency. Which of the following printer units will help the contractor efficiently perform this task?
-Duplexing assembly
-Transfer belt
-OCR
-ADF
ADF
~An automatic document feeder (ADF) passes paper over a fixed scan head and is a more efficient means of scanning multi-page documents.
~When the paper has passed through the fuser and has a duplexing assembly unit installed, it turns over and returns to the developer unit to print the second side.
~Optical character recognition (OCR) software can convert scanned text into digital documents and is ready for editing.
~Color laser print devices use separate toner cartridges for each additive color. One may use four passes to put each color in turn; others combine the colored toner on a transfer belt and print in one pass.
A user is experiencing a paper jam in a printer that loads paper through friction. The user opens the printer up to try and find the part that will fix the problem. The user should check on which assembly part?
-Drum assembly
-Duplexing assembly
-Feed assembly
-Fuser assembly
Feed assembly
~Paper is friction-fed through the print mechanism in the feed assembly by a stepper motor turning a rubber-coated roller.
~From the transfer assembly, the paper passes into the fuser assembly. The fuser unit squeezes the paper between a hot roller and a pressure roller.
~When the paper has passed through the fuser and has a duplexing assembly unit installed, it turns over and returns to the developer unit to print the second side.
~If the media and pickup rollers are good and if the jam occurs within the drum assembly before fusing the image, the cause could be a faulty static eliminator.
