Appendix: Glossary

ANSI Lumens —A standard for measuring light output, used for comparing projectors. A standard for measuring the brightness. It is calculated by dividing a square meter image into nine equal rectangles, measuring the lux (or brightness) reading at the center of each rectangle, and averaging these nine points.

Aspect Ratio —The most popular aspect ratio is 4:3 (4 by 3). Early television and computer video formats are in a 4:3 aspect ratio, which means that the width of the image is 4/3 times the height.

Brightness— The amount of light emitting from a display or projection display or projection device. The brightness of projector is measured by ANSI lumens.

Color Temperature— The color appearance of white light. Low color temperature implies warmer (more yellow/red) light while high color temperature implies a colder (more blue) light. The standard unit for color temperature is Kelvin (K).

Component Video—A method of delivering quality video in a format that contains all the components of the original image. Consists of the luminance signal and two separate chrominance signals and are defined as Y'Pb'Pr' for analog component and Y'Cb'Cr' for digital component. Component video is available on DVD players and projectors.

Composite Video — A video signal that combines the luma (brightness), chroma (color), burst (color reference), and sync (horizontal and vertical synchronizing signals) into a signal waveform carried on a single wire pair. There are three kind of formats, namely, NTSC, PAL and SECAM.

Compressed Resolution— If the input images are of greater resolution than the native resolution of the projector, the resulting image will be scaled to fit the native resolution of the projector. The nature of compression in a digital device means that some image content is lost.

Contrast Ratio— Range of light and dark values in a picture, or the ratio between their maximum and minimum values. There are two methods used by the projection industry to measure the ratio:

1 Full On/Off — measures the ratio of the light output of an all white image (full on) and the light output of an all black (full off) image.

2 ANSI — measures a pattern of 16 alternating black and white rectangles. The average light output from the white rectangles is divided by the average light output of the black rectangles to determine the ANSI contrast ratio.

Full On/Off contrast is always a larger number than ANSI contrast for the same projector.

Glossary

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Dell M409WX manual Appendix Glossary
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M409WX specifications

The Dell M409WX is a versatile and high-performance laser printer designed to meet the demands of home offices and small to medium-sized businesses. This printer boasts a compact design, making it a perfect fit for tight spaces while still offering robust features and capabilities.

One of the standout features of the M409WX is its impressive print speed. It can produce up to 42 pages per minute for black-and-white documents, ensuring that even large print jobs are completed quickly. This efficiency is complemented by a first-page-out time of just 6.5 seconds, allowing users to receive their documents without unnecessary delays.

The M409WX utilizes advanced laser technology, providing sharp and clear text and images with a maximum print resolution of 1200 x 1200 dpi. This ensures that even the most detailed graphics and fine text maintain clarity and precision. The printer is well-suited for a variety of print media, from standard office paper to envelopes and labels.

Connectivity options on the M409WX are abundant. It features built-in Wi-Fi and Ethernet capabilities, allowing for seamless integration into both wired and wireless networks. Mobile printing is also supported through various protocols, including Apple AirPrint, Google Cloud Print, and Dell Mobile Print, making it easy for users to print directly from their smartphones and tablets.

Another significant aspect of the M409WX is its user-friendly interface. The printer is equipped with a clear, intuitive control panel that simplifies navigating through settings and functions. Additionally, the printer supports duplex printing, which conserves paper and reduces operating costs, making it an environmentally friendly choice.

Security is also a priority with the M409WX. It incorporates various security features to protect sensitive information, including secure printing options and user authentication, ensuring that documents are only accessed by authorized personnel.

Designed with energy efficiency in mind, the M409WX operates at a lower power consumption level due to its efficient laser printing technology. This not only reduces electricity bills but also lessens its environmental impact.

In summary, the Dell M409WX laser printer offers a powerful combination of speed, quality, connectivity, and security, making it an excellent choice for users looking to enhance their printing capabilities in a compact and efficient package. Whether for everyday document printing or specialized tasks, the M409WX stands out as a reliable and effective solution.
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