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How Do Color Laser Printers Work?

How Do Color Laser Printers Work?

Color Laser Printers

To most people, printers are mysterious machines. We’ve been using them for years, yet we haven’t the faintest idea how they do what they do… print. 

And, now that inkjet printers share the market with laser printers, many consumers are wondering “how do color laser printers work?” If you have started your research, a good reference is reading a guide to choosing a color laser printer. 

First Off, Yes, It’s an Actual Laser

As the name suggests,  color laser printers use laser beams to print whatever you need onto the paper you have loaded into the paper tray.  A bit more complex description follows.

The following guide will give you a full overview of how color laser printers work, from the moment you click print to when it becomes that beautiful document or photograph in your hands. 

The Main Types of Printers

Before delving into the mechanics, it’s important to understand where laser printers fit into the wider color printing market.  The color laser printer has two major rivals in the printing sector: the inkjet printer and the solid ink printer. 

  • Office Inkjet Printers are generally cheaper to purchase than laser printers, but they’re slower and use more resources. They create prints by spraying or “jetting” ionized ink onto a piece of paper. 
  • Solid Ink Printers are less common than inkjet printers, as they are specialty printers. . They do not use cartridges but instead use wax-based ink sticks that are heated and melted onto paper. Unfortunately, despite their higher cost, solid ink printers can only print onto “normal” quality paper.

And therein lies why Xerox invented laser printing; because as inkjets and solid ink printers scaled for large businesses, they just weren’t that efficient (both with cost and speed). 

Thus, how exactly does a laser printer work? Can color laser printers print photos? And why is it today’s business standard? 

What is Color Laser Printer?

As mentioned, a color laser printer uses a laser beam to print images and text onto paper. Unlike an inkjet printer, a laser printer has four separate toner cartridges for each color: 

  • Cyan 
  • Magenta 
  • Yellow
  • Black 

These four colors combined are capable of printing almost any color document or image onto all types of paper, from your “standard” to high-resolution photo sheets. Furthermore, color laser printers are exceptionally accurate and unlikely to smudge, another reason they excel in the current printing market. 

They yield more efficiency than office inkjets for two primary reasons:

  1. They have the ability to produce color prints at much higher speeds 
  2. Their toner cartridges last longer (and are less expensive)

How Do Color Laser Printers Work? What’re the Mechanics?

Color laser printers are extremely complex machines. For this reason, we’ve broken down a step-by-step overview of the processes involved in laser printing. 

  1. The printing process begins when you hit the print key on your desktop or laptop, which then sends millions of bytes of data to your printer’s electronic circuit board for processing. 
  2. The electronic circuit processes the data to instruct your color laser printer on what to do next. It initiates the printer’s drum and activates a (+) positive charge.
  3. This is when the lasers activate. They scan the information that came from your computer onto the drum, activating a (-) negative charge. 
  4. The area on the drum that the laser hits (negative charge) is what will then be printed on the page, while the area that remains untouched by the laser (positive charge) will not be printed.
  5. The toner, which is positively charged, is printed onto the drum through an ink roller. Because the toner is positively charged and only prints on areas of the drum that are negatively charged, it produces an accurate image. 
  6. The drum then prints the toner onto the sheet of paper, which then moves through two rollers which fuse the ink into the paper so that it doesn’t smudge. 
  7. The paper then moves through the printer onto the tray. 
  8. You then grab your print!

While this is an oversimplification of the laser printing process, in essence every laser printer will have some variation of these exact protocols. In the easiest explanation, a color laser printer uses a laser beam to burn (or fuse) toner (a powder) onto a piece of paper.   

The Key Benefits of Color Laser Printers

The printing process itself is widely believed to be more efficient than office inkjet printing. The fusing of the toner mitigates the chances of smudging and produces accurate results. Additionally, the toner has a longer lifespan being that there’s no room for leaking, nor does it dry up when idle.

Lastly, the process is faster! There’s no ifs ands or buts, one of the biggest benefactors of laser printing is its sheer rapidity. 

Thus, due to their design, color laser printers are an excellent investment for those that consistently print in color. 

 

Sources:

 

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