Color quality guide

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Should I use the PostScript or PCL driver for the best color? What driver settings should I use for the best color?

The PostScript driver is strongly recommended for best color quality. The default settings in the PostScript driver will provide preferred color quality for the majority of printouts.

Why doesn't the printed color match the color I see on my computer screen?

The color conversion tables used in Auto Color Correction mode generally approximate the colors of a standard computer monitor. However, because of technology differences that exist between printers and monitors, there are many colors that can be generated on a computer screen that cannot be physically reproduced on a color laser printer. Color match can also be affected by monitor variations and lighting conditions. Read the response to the question “How can I match a particular color (such as a color in a corporate logo)?” on page 5 for recommendations on how the printer Color Samples pages may be useful in solving certain color matching problems.

The printed page appears tinted. Can I slightly adjust the color?

Sometimes a user may consider printed pages to appear tinted (for example, everything printed seems to be too red). This can be caused by environmental conditions, paper type, lighting conditions, or user preference. In these instances, Color Balance may be used to create more preferable color. Color Balance provides the user with the ability to make subtle adjustments to the amount of toner being used in each color plane. Selecting positive (or negative) values for cyan, magenta, yellow, and black under the Color Balance menu will slightly increase (or decrease) the amount of toner used for the chosen color. For example, if a user believes the overall printed page to be too red, then decreases to both magenta and yellow could potentially improve color preference.

Is it possible to increase the gloss in the printed output?

Additional gloss can be obtained by printing using the 1200 dpi Print Resolution setting.

My color transparencies seem dark when projected. Is there anything I can do to improve the color?

This problem most commonly occurs when projecting transparencies with reflective overhead projectors. To obtain the highest projected color quality, transmissive overhead projectors are recommended. If a reflective projector must be used, then adjusting Toner Darkness settings to 1, 2, or 3 will lighten the transparency.

What is Manual Color Correction?

The color conversion tables applied to each object on the printed page when using the default Auto Color Correction setting will generate preferred color for the majority of documents. Occasionally a user may want to apply a different color table mapping. This customization is accomplished using the Manual Color menu and the Manual Color Correction setting.

Manual Color Correction applies the RGB and CMYK color conversion table mappings as defined in the Manual Color menu. Users may select any of four different color conversion tables available for RGB objects

(sRGB Display, sRGB Vivid, Vivid, and Off) and any of four different color conversion tables available for CMYK objects (US CMYK, Euro CMYK, Vivid CMYK, and Off).

Note: The Manual Color Correction setting will not be useful if the software application does not specify colors with RGB or CMYK combinations, or in certain situations where the software application or the computer operating system adjusts the colors specified in the application through color management.

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IBM 1454, 1464 manual Is it possible to increase the gloss in the printed output?, What is Manual Color Correction?
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1454, 1464 specifications

The IBM 1454 and 1464 are notable computing systems that have played a significant role in the evolution of technology. Introduced in the 1960s, these systems were part of IBM's early foray into mini-computers, which aimed to provide more accessible computing power compared to their larger mainframe counterparts.

The IBM 1454, which was designed with an emphasis on flexibility and adaptability, featured a modular architecture that allowed for various configurations based on user needs. It supported multiple programming languages, which made it versatile for a range of applications, from scientific calculations to business data processing. One of its main features was the capability to interface with peripheral devices, showcasing an early attempt at creating a more interconnected computing environment.

On the other hand, the IBM 1464 was an advancement over the 1454, boasting enhanced processing capabilities and memory management. It was specifically engineered for real-time applications, which was becoming increasingly important in industries such as telecommunications and manufacturing. The 1464 incorporated improved input/output operations, enabling faster data processing and more efficient use of hardware resources. This made it suitable for complex tasks that required immediate processing and feedback.

Both models utilized IBM’s proprietary technologies, including a unique assembly language and input/output channels that optimized data flow between the CPU and peripherals. They were also equipped with magnetic core memory, which, while basic by today's standards, was a cutting-edge feature at the time, providing both speed and reliability.

In terms of characteristics, the IBM 1454 and 1464 were compact for their time, designed to fit into space-constrained environments such as laboratories and business offices. They also came with comprehensive documentation and support, reflecting IBM's commitment to customer service and user education.

In summary, the IBM 1454 and 1464 were pivotal in defining the landscape of mini-computing during their era. With their modular designs, robust processing capabilities, and support for real-time applications, they laid the groundwork for future advancements in computer technology. Their legacy continues to influence modern computing systems, making them critical milestones in the history of information technology.
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