Troubleshooting

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?

Obtain additional gloss 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. Be sure to print on the recommended type of color transparencies. For more information, see “Understanding paper and specialty media guidelines” in the User’s Guide on the Software and Documentation CD.

Color Saver must be Off to adjust Toner Darkness.

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 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 five different color conversion tables available for RGB objects (sRGB Display, Display— True Black, sRGB Vivid, Off, and Vivid) 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 is not 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.

How can I match a particular color (such as a color in a corporate logo)?

Occasionally, users have a need for the printed color of a particular object to closely match a specific color. A typical example of this is when a user is trying to match the color of a corporate logo. While instances can occur in which the printer cannot exactly reproduce the desired color, users should be able to identify adequate color matches for the majority of cases. The Color Samples menu item can provide useful information in helping to solve this particular type of color- matching problem.

The nine Color Samples values correspond to color conversion tables in the printer. Selecting any of the Color Samples values generates a multiple-page printout consisting of hundreds of colored boxes. Either a CMYK or RGB combination is located on each box, depending on the table selected. The observed color of each box is obtained by passing the CMYK or RGB combination labeled on the box through the selected color conversion table.

The user can examine the color samples pages and identify the box whose color is the closest to the desired color. If the user finds a box whose color is close to the desired color match, but the user would like to scan the colors in that area in more detail, then the user can access the Detailed Color Samples by using the printer Embedded Web Server interface, which is only available on network models.

Solving color quality problems

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Lexmark C772, C770 manual Is it possible to increase the gloss in the printed output?, What is Manual Color Correction?
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C772, C770 specifications

The Lexmark C770 and C772 series of printers are robust color laser printers designed for medium to large workgroups that demand high-quality printing along with impressive speed and efficiency. These models stand out due to their impressive set of features and advanced technologies, catering to a range of business printing needs.

One of the hallmarks of the Lexmark C770 and C772 is their print quality. With a resolution of up to 1200 x 1200 dpi, these printers deliver sharp text and vibrant color graphics, making them ideal for producing professional-looking documents, presentations, and marketing materials. Additionally, the printers utilize Lexmark's unique Unison toner technology, which ensures consistent, high-quality printing throughout the life of the cartridge, reducing the need for frequent replacements and maximizing productivity.

Speed is another significant advantage of the C770 and C772 series. Both models are capable of printing at impressive speeds of up to 35 pages per minute for black and white prints and slightly lower for color documents. This rapid output allows businesses to meet tight deadlines without compromising on quality. Furthermore, the first-page-out time is notably fast, ensuring that users do not waste time waiting for their documents.

Connectivity options are extensive with the C770 and C772. These printers support USB, Ethernet, and optional wireless connections, enabling seamless integration into various network environments. This flexibility allows multiple users and devices to access the printer, facilitating collaboration and streamlining workflows.

Additionally, user-friendly features such as a large, intuitive LCD screen and an easy-to-navigate interface simplify printer management and operation. The printers also support advanced finishing options, including duplex printing, which saves paper and reduces costs, making them environmentally friendly choices for businesses.

Moreover, security features are incorporated to protect sensitive data, with options for secure printing and data encryption. This makes these printers suitable for environments where confidentiality is crucial.

In summary, the Lexmark C770 and C772 series are powerful color laser printers that combine exceptional print quality, impressive speed, versatile connectivity, and advanced features, making them a worthy investment for businesses looking to enhance their printing capabilities.
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