What are two safety hazards when dealing with laser printers (choose two.)? (2023)

What are two safety hazards when dealing with lasers?

Improperly used laser devices are potentially dangerous. Effects can range from mild skin burns to irreversible injury to the skin and eye. The biological damage caused by lasers is produced through thermal, acoustical and photochemical processes.

Put your printer on a flat, stable surface such as a desk that is free of vibration and shocks. Use the printer in a well-ventilated room. Avoid placing your machine in a high-traffic area. DO NOT put the printer where the ventilation hole of the printer is blocked.

Toner is used in photocopiers and laser printers as part of the printing process. The toner is an extremely fine powder, which in itself is not classed as a substance hazardous to health, but any dust in substantial concentration is, as it may cause respiratory tract irritation resulting in coughing and sneezing.

Laser printers and copiers are suspected to emit toner dust and volatile organic compounds and thereby to represent a health hazard.

Before you can use a laser level, you need to connect a compatible battery to the device according to the instructions that came with it. Then, you need to determine where you want to place the laser level tripod, and make sure the ground is dry so it doesn't move away from the desired position.

Sources of laser hazards include: Unintentional eye exposure during alignment. Misaligned laser beam. Lack of eye protection.

Injuries resulting from staring into the laser beam include permanent damage to the eye and subsequent partial or total loss of vision. Injuries from lasers can also occur when the beam is shone into the eyes of unsuspecting people. This can result in a 'dazzle effect' where the exposure leads to disorientation.

The hazards associated with a laser cutter include the possibility of fires and the generation of hazardous and/or irritating combustion products. The laser cutter high powered laser can cause damage to eyes and skin, and it must be contained within the cutter.

"Where the concentrations are significantly elevated means there is potentially a considerable hazard." The research also found that office particulate levels increased fivefold during work hours because of laser printers.

Are laser printers a health hazard?

In a new discovery that emphasizes just how hazardous seemingly benign modern equipment can turn out to be, researchers from West Virginia University have discovered that microscopic nanoparticles from laser printers may change an individual's genetic and metabolic profile if inhaled.

Lasers emit radiation as narrow concentrated beams of light, not necessarily visible to the human eye. Their most commonly-recognised hazard is their ability to damage eyesight or burn skin, which can vary markedly according to the wavelength and power of the output.

Handling paper or collating copies are manual handling risks. A Finnish study has concluded that exposure to copy paper and fumes from office printers increases the incidence of sick building syndrome (SBS) symptoms and respiratory problems for office workers.

Burns and Blindness:

The obvious hazard with lasers is the possibility of blindness. Even if the laser in use has a wavelength outside of the eye's sensitivity range (400-1400nm, visible and near infrared light), damage to the eye can still occur.

Thermal (burn) injury is the most common cause of laser-induced skin damage. Thermal damage is generally associated with lasers operating at exposure times greater than 10 microseconds and in the wavelength region from the near-ultraviolet to the far-infrared.

Laser accidents are most common when: Performing beam manipulation with incorrect or no protective eyewear. There are misaligned optics and upward directed beams. There is a failure to contain beams and block stray beams.

Class 4 is the highest class in terms of laser hazards. If you're within the hazard zone, you're exposed to severe eye and skin injuries. In addition, combustible materials shouldn't be in the laser's surroundings to avoid fire hazards. Diffuse reflections of class 4 lasers are also hazardous.

A hallmark of any good level is accuracy, whether it's a spirit level or a high-tech laser model. The best laser levels will list a degree of accuracy on the packaging or in the manual. For a rule of thumb, however, look for a model with less than ⅛-inch deviation at 30 feet for truly dialed-in results.

Prior to every use the CST should inspect the lenses for cracking, discoloration, pitting, and/or scratches including light leaks and coating damage that would allow for eye injury.

What are the 3 types of hazards give 3 examples of each?

Never look directly into the laser beam. Never shine a laser pointer at anyone. Do not aim the laser at reflective surfaces/mirror like surfaces. A reflected beam can act like a direct beam on the eye.

Most people are not affected by ozone emissions from a laser printer. The ozone generated by laser printers has a very short life span and decomposes back to oxygen very rapidly. In the average office, ozone concentrations usually will not last longer than a few minutes.

Generally, pulsed lasers are more hazardous than CW lasers. Lasers using CO2 and certain other materials emit beams that are not visible to the eye; hence, they are particularly hazardous. Biological damage caused by lasers includes thermal burns, photochemical injuries, and retinal injury.

The most serious hazard associated with lasers is the electrical hazard from the laser power source. Several fatalities have occurred because of this hazard. Most laser power supplies contain severe electrical hazards. They often contain high voltages and energy storage capacitors and may also include water cooling.

Class 4 is the highest class in terms of laser hazards. If you're within the hazard zone, you're exposed to severe eye and skin injuries. In addition, combustible materials shouldn't be in the laser's surroundings to avoid fire hazards. Diffuse reflections of class 4 lasers are also hazardous.

The laser in most printers is not powerful enough to burn skin or pose a fire hazard but it certainly could damage someone's eyes. The idea is generally that Class 1 lasers are sufficiently low in power to be safe.