Color image brightness examples

The examples below show the original image at the default setting of 50% brightness level, 25% brightness and 75% brightness. Adjusting the brightness level does not make the image completely black nor completely white.

Brightness: 25%

Brightness: 50%

Brightness: 75%

Technical note:

Most monitors have a brightness setting that is user adjustable. When viewing scanned images on-screen, versus printing the image, the brightness setting of the monitor may affect how light or dark the scanned image looks when compared to the original. If the scanned image is too different from the original image, or if adjusting the scanned brightness level does not modify the image how you want, try adjusting the monitor's brightness level. Refer to the monitor's user guide for adjusting the brightness level and see if the manufacturer has any recommended settings.

Black background scanners:

Some scanners have a black background plate. A black background results in more precise cropping results and skew detection. However, when scanning thin paper, such as multipart color forms or ruled writing paper, which are less than 18lb paper weight, the background may “bleed” through into the final image and make the image darker than it should be. In that case, try adjusting the brightness level between 60% and 80%.

Contrast

Contrast refers to the differences between the light and dark portions in the image. Move the slider left or right to decrease or increase the contrast levels. Increasing the contrast level emphasizes the difference between the lighter and darker portions of the image, decreasing the contrast de-emphasizes that difference.

Choosing contrast values

While Brightness adds the same amount of gray or white to all pixels in the image, Contrast adjusts the pixels based on the pixel color level. For instance, increasing the contrast level will add white to light colored pixels and gray to dark pixels to make the difference between color levels in the image crisper. Decreasing the contrast level will have the opposite affect, where light colored pixels are modified with gray and dark pixels are modified with white to make the transition of colors in the image appear smoother.

Adjusting the contrast level is based on how you want the image to appear and there is no standard to adhere to. Contrast works in conjunction with brightness for image enhancement, when decreasing the brightness level, the overall image becomes darker, in which case you may want to increase the contrast level so that the differences between the lighter and darker portions of the image are clearer.

Below are some recommended options for contrast image correction based on the original document quality.

Original documents of good quality - 50%

152Xerox® DocuMate® 4700 User’s Guide

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Xerox 4700 manual Contrast, Color image brightness examples, Black background scanners, Choosing contrast values

4700 specifications

The Xerox 4700 is a robust monochrome laser printer designed primarily for high-volume printing environments. This machine stands out due to its impressive speed, reliability, and quality, making it a go-to solution for businesses that need efficient document management capabilities.

One of the main features of the Xerox 4700 is its remarkable printing speed. With the capability of producing up to 120 pages per minute, it ensures that large print jobs are completed quickly without compromising quality. This high-speed performance is complemented by various media handling options, allowing users to print on a range of paper sizes, from standard letterhead to larger formats.

The Xerox 4700 employs advanced laser printing technology, which not only delivers sharp text and clear graphics but also maintains consistency across different print runs. The printer utilizes a high-capacity toner cartridge that can yield a significant number of pages, minimizing the frequency of toner changes and reducing operational costs.

In terms of connectivity, the Xerox 4700 is equipped with multiple options. Standard USB connectivity allows for straightforward direct connections, while optional network interfaces, such as Ethernet and Wi-Fi, enable seamless integration into various office setups. The printer supports various protocols, including TCP/IP, making it easy to incorporate into existing network architectures.

Additionally, the Xerox 4700 supports a suite of advanced printing solutions. Features such as Secure Print, which ensures sensitive documents are only printed when the user authenticates, enhance security in busy office environments. The printer also supports duplex printing, allowing for automatic double-sided printing, promoting paper savings and eco-friendly practices.

The user interface of the Xerox 4700 is designed for efficiency. With a clear and intuitive control panel, users can navigate through settings quickly, minimizing downtime. The printer also includes a full range of management features, providing administrators with tools to monitor usage, configure network settings, and perform maintenance tasks.

Overall, the Xerox 4700 is an ideal choice for organizations that require high-performance printing without sacrificing security or quality. Its combination of speed, efficiency, and advanced features makes it a valuable asset in any busy office environment, solidifying its reputation as a reliable workhorse in the realm of monochrome printing.