pctechguide.com

  • Home
  • Guides
  • Tutorials
  • Articles
  • Reviews
  • Glossary
  • Contact

Laser Printer Communications

A laser printer needs to have all the information about a page in its memory before it can start printing. How an image is communicated from the PC’s memory to a laser printer depends on the type of printer being used. The crudest arrangement is the transfer of a bitmap image. In this case there is not much the computer can do to improve on the quality, so sending a dot for a dot is all it can do.

However, if the system knows more about the image than it can display on the screen there are better ways to communicate the data. A standard A4 sheet is 8.5in across and 11in deep. At 300dpi, that is more than eight million dots compared with the eight hundred thousand pixels on a 1024 by 768 screen. There is obviously scope for a much sharper image on paper – even more so at 600dpi, where a page can have 33 million dots.

The major way quality can be improved is by sending a page description consisting of outline/vector information and allowing the printer to make the best possible use of it. If the printer is told to draw a line from one point to another, it can use the basic geometric principle that a line has length but not width, and draw that line one dot wide. The same holds for curves, which can be as fine as the resolution of the printer allows. The idea is that one single page description may be sent to any suitable device, which would subsequently print it to the best of its ability – hence the much-touted term, device independent.

Text characters are made up of lines and curves so can be handled in the same way, but a better solution is to use a pre-described font shape, such as TrueType or Type-1 formats. Along with precise placement, the page description language (PDL) may take a font shape and scale it, rotate it, or generally manipulate it to its heart’s content. There’s the added advantage of only requiring one file per font as opposed to one file for each point size. Having predefined outlines for fonts allows the computer to send a tiny amount of information – one byte per character – and produce text in any of many different font styles and many different font sizes.

  • Laser Printer Communications
  • Laser Printer Operation
  • LED Laser Printers
  • Color Laser Printers
  • Laser printer Consumables
  • Environmental Issues
  • Page Description Languages
  • PostScript Laser Printers
  • PCL Laser Printers
  • GDI Laser Technology
  • Adobe Print Gear

Filed Under: Laser Printers

Latest Articles

9 Steps to Understanding the Mobile App Development Process

Are you considering getting on the mobile app development market? That can be a wise move. The market for mobile apps is expected to exceed $407 billion by 2026. However, getting in on this industry won't be easy. Building an app for your business can be tricky, particularly if you don’t have … [Read More...]

Blu-Ray – the Hi-Def Blue Laser Disk Technology

Optical disks have come a long way. They began back in the 1980s with the humble CD, which was great for music, computer software and data. Unfortunately it turned out to be poor for movies, though there was some limited success withVideoCD in Asian markets. DVDs came to the rescue in the … [Read More...]

Micro ATX motherboard form factor

Introduced in the late 1990s, the MicroATX is basically a smaller version of Intel's ATX specification, intended for compact, low-cost consumer systems with limited expansion potential. The maximum size of the board is 9.6in square, and its designed to fit into either a standard ATX … [Read More...]

Comments

  1. Andre says

    January 23, 2012 at 3:47 am

    Thank you. It’s really nice to see there are people who share what they learn….. the whole purpose of learning. Imagine if Isaac Newton held out on the rest of us.

    Cheers

    Andre

Why Cross-Chain Trading Is the Future of Crypto Investing?

The rapid growth and evolution of the cryptocurrency market have opened up exciting opportunities for investors. Within this dynamic landscape, … [Read More...]

Revolutionize Your Internet Experience with Orbi 960 – The Ultimate WiFi System

In a world where seamless connectivity is essential, slow and unreliable internet connections are a major problem. Whether you are running a business, … [Read More...]

Do You Need a VPN When Trading Cryptocurrency?

There’s no doubt that the biggest global industries in 2023 are tech-driven, while there remains a significant crossover between many of these … [Read More...]

Goodbye Bitcoin: the 3 alternative cryptocurrencies that have great upside potential, according to experts

Bitcoin has been a very lucrative investment for people that got into it early. One report from The Motley Fool pointed out that $10 of bitcoin … [Read More...]

Self-driving cars face their Achilles’ heel and may be targets of hackers

The market for self-driving cars is booming. Customers spent $22.22 billion on these autonomous vehicles in 2021 and they will likely spend more in … [Read More...]

How to avoid scams with bitcoin and other cryptocurrencies

Cryptocurrencies got a bad reputation when scams multiplied like ants on a piece of cake. Even today many people associate bitcoin and other … [Read More...]

Guides

  • Computer Communications
  • Mobile Computing
  • PC Components
  • PC Data Storage
  • PC Input-Output
  • PC Multimedia
  • Processors (CPUs)

Recent Posts

Web Development Guide 2

Granted this seems an incredibly obvious question, but this is where some careful thought can save an awful lot of work and time later … [Read More...]

Resolve Omiga-Plus Redirect Issue

Alternating homepage or start page is one to capabilities of Omiga-Plus, which is the reason it is popularly known to be one of the browser hijackers. … [Read More...]

Resolutions When Sampling Digital Images with Scanners or Using Digital Cameras

Seen side by side, it's clear that the original image has been, to put it mildly, somewhat obfuscated by the sampling process. Although in … [Read More...]

[footer_backtotop]

Copyright © 2023 About | Privacy | Contact Information | Wrtie For Us | Disclaimer | Copyright License | Authors