•Pencil written letters, forms, or drawings - 55% to 65%

•Faded pictures or old documents with faded text - 60% to 70%

•Light colored carbon copy paper, such as yellow or pale pink or pale green, with light text - 45% to 55%

•Newspaper or magazine pages - 55% to 70%

•Book pages - 60% to 75%

•Pictures taken inside or in the shade - 40% to 60%

Color image contrast examples

The examples below show the original image at the default setting of 50% contrast level, 25% contrast and 75% contrast.

Contrast: 25%

Contrast: 50%

Contrast: 75%

Technical note:

Most monitors have a contrast setting that is user adjustable. When viewing scanned images on-screen, versus printing the image, the contrast setting of the monitor may affect how clear a scanned image looks when compared to the original. If the scanned image is too different from the original image, or if adjusting the scanned contrast level does not modify the image how you want, try adjusting the monitor's contrast level. Refer to the monitor's user guide for adjusting the contrast 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 carbon copy paper 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 40% and 60%, then adjust the contrast level between 60% and 80%.

Gamma

Gamma is the tone curve and starting point for image enhancement. Move the slider left or right to darken or lighten the image. As you raise or lower the Gamma value, the values at which Brightness and Contrast affect the image are changed. It is recommended that you keep the default gamma value, or adjust this setting before adjusting the other options.

Choosing gamma values

As the gamma value is adjusted lower, the tone curve begins to straighten and the shadows of the image are expanded, darkening the shadows without overall darkening the image with gray as seen with lowering the brightness level. This way, the highlights and shadows in the image are maintained by saturating the pixels with darker levels of the same color rather than adding gray to all colors.

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User’s Guide

 

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Xerox 4700 manual Gamma, Color image contrast examples, Choosing gamma values
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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.
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