Lexmark X945e Troubleshooting Guide - Page 11
Solving color quality problems - yellow toner
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Toner fog or background shading appears on the page A TONER CARTRIDGE MAY BE DEFECTIVE Replace the toner cartridge. ARE THE PHOTOCONDUCTORS WORN OR DEFECTIVE? Replace the photoconductor(s). Note: The printer has four photoconductors: cyan, magenta, yellow, and black. The cyan, magenta, and yellow photoconductors must all be replaced at the same time. The black photoconductor can be replaced separately. IS THERE TONER IN THE PAPER PATH? Contact Customer Support. Toner rubs off These are possible solutions. Try one or more of the following: CHECK THE PAPER TYPE SETTING Make sure the Paper Type setting matches the paper loaded in the tray. CHECK THE PAPER TEXTURE SETTING Make sure the Paper Texture setting matches the paper loaded in the tray. Toner specks These are possible solutions. Try one or more of the following: IS A TONER CARTRIDGE DEFECTIVE? Replace the toner cartridge. IS THERE TONER IN THE PAPER PATH? Contact Customer Support. Transparency print quality is poor CHECK THE TRANSPARENCIES Use only transparencies recommended by the printer manufacturer. CHECK THE PAPER TYPE SETTING Load transparencies, and make sure the Paper Type setting is set to Transparency. Uneven print density Replace the photoconductor(s). 11 Note: The printer has four photoconductors: cyan, magenta, yellow, and black. The cyan, magenta, and yellow photoconductors must all be replaced at the same time. The black photoconductor can be replaced separately. Solving color quality problems This section helps answer some basic color-related questions and describes how some of the features provided in the Quality menu can be used to solve typical color problems. FAQ about color printing What is RGB color? Red, green, and blue light can be added together in various amounts to produce a large range of colors observed in nature. For example, red and green can be combined to create yellow. Televisions and computer monitors create colors in this manner. RGB color is a method of describing colors by indicating the amount of red, green, or blue needed to produce a certain color. What is CMYK color? Cyan, magenta, yellow, and black inks or toners can be printed in various amounts to produce a large range of colors observed in nature. For example, cyan and yellow can be combined to create green. Printing presses, inkjet printers, and color laser printers create colors in this manner. CMYK color is a method of describing colors by indicating the amount of cyan, magenta, yellow, and black needed to reproduce a particular color. How is color specified in a document to be printed? Software programs typically specify document color using RGB or CMYK color combinations. Additionally, they allow users to modify the color of each object in a document. For more information, see the software program Help topics. How does the printer know what color to print? When a user prints a document, information describing the type and color of each object is sent to the printer. The color information is passed through color conversion tables that translate the color into the appropriate amounts of cyan, magenta, yellow, and black toner needed to produce the desired color. The object information determines the application of color conversion tables. For example, it is possible to apply one type of color conversion table to text while applying a different color conversion table to photographic images.