Lexmark C920 User Manual
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Solving option problems 141 Troubleshooting Solving option problems If an option does not operate correctly after it is installed or if it quits working: Turn the printer off, wait for about 10 seconds, and turn the printer on. If this does not fix the problem, unplug the printer, and check the connection between the option and printer. Print the menu settings page and check to see if the option is listed in the Installed Options list. If the option is not listed, reinstall it. See Printing the menu settings page for more information. Make sure the option is selected in the software application you are using. For Macintosh computer users: Make sure the printer is set up in Chooser. The following table lists printer options and suggested corrective actions for related problems. If the suggested corrective action does not fix the problem, call your service representative. OptionAction Drawers Make sure the connection between drawers and the printer is secure. Make sure the print media is loaded correctly. Duplex unit Make sure the connection between the duplex unit and the printer is secure. If the duplex unit is listed on the menu settings page, but print media jams when it enters or exits the duplex unit, the printer and duplex unit may not be properly aligned. Finisher Make sure the connection between the finisher and the printer is secure. If the finisher is listed on the menu settings page, but print media jams when it exits the printer and enters the finisher, it may not be properly installed. Reinstall the finisher. Make sure you are using a print media size compatible with your optional output bins. See Media sizes and support. Flash memory Make sure flash memory is securely connected to the printer system board. Hard disk with adapterMake sure the hard disk is securely connected to the printer system board. Infrared adapter If infrared communication stops or does not occur, make sure: The distance between the two infrared ports is 1 meter (39 in.) or less. If communication does not occur between ports, move the ports closer together. Both ports are stable. The computer and the printer are on a level surface. The angle of communication between the two infrared ports is within 15 degrees of either side of an imaginary line drawn between the two infrared ports. No bright light, such as direct sun light, is interfering with communication. No objects are placed between the two infrared ports. Internal print server Make sure the internal print server (also called an internal network adapter or INA) is securely connected to the printer system board. Make sure you are using the correct cable, that it is securely connected, and the network software is correctly set up. See the drivers CD that shipped with your printer for more details. High capacity feederSee Solving high capacity feeder problems. Printer memory Make sure printer memory is securely connected to the printer system board. USB/Parallel interface Make sure the USB/parallel interface card is securely connected to the printer system board. Make sure you are using the correct cable and that it is securely connected. Downloaded From ManualsPrinter.com Manuals
Solving option problems 142 Troubleshooting Solving high capacity feeder problems ProblemSolution The paper tray does not raise when the loading door is closed, or the paper tray does not lower when the door is opened and the paper tray button is pushed.Check the following: The printer is properly attached to the high capacity feeder. The printer is powered on. The power cord is plugged firmly into the back of the high capacity feeder. The power cord is plugged into an outlet. The outlet has power. The paper tray lowers unexpectedly. Check to see if your printer is out of paper or has a jam. More than one sheet of paper is fed or a sheet is fed improperly.Remove the paper in the printer paper path, and check the stack to ensure the paper has been loaded properly. Be sure to remove the top and bottom sheets of each ream of paper that is loaded. A jam occurs. Rubber feed rollers do not turn to advance paper.Check the following: The power cord is plugged firmly into the back of the high capacity feeder. The power cord is plugged into an outlet. The outlet has power Consistent misfeeds or jams in the feeder. Try the following: Flex the paper. Turn the print media over. Check the following: Feeder is properly installed. Paper is loaded correctly. Paper is not damaged. Paper meets specifications. Guides are positioned correctly for the paper size selected. Service messages A service message indicates printer failure that may require service. Turn the printer off, wait about 10 seconds, and then turn the printer on. If the error recurs, write down the error number, the problem, and a detailed description. Call for service. Downloaded From ManualsPrinter.com Manuals
Solving paper feed problems 143 Troubleshooting Solving paper feed problems SymptomCauseSolution Paper frequently jams. You are using paper that does not meet the printer specifications.Use recommended paper and other specialty media. See the Card Stock & Label Guide available on our Lexmark Web site at www.lexmark.com for detailed specifications. See Avoiding jams for information that can help prevent jams from occurring. You have loaded too much paper or too many envelopes.Make sure the stack of paper you load does not exceed the maximum stack height indicated in the tray or on the multipurpose feeder. Guides in the selected tray are not set to the appropriate position for the size paper loaded.Move the guides in the tray to the correct position. The paper has absorbed moisture due to high humidity.Load paper from a fresh package. Store paper in its original wrapper until you load it. See Storing media for more information. The Paper Jam message remains after you remove the jammed paper. You have not pressed or have not cleared the entire paper path.Clear paper from the entire paper path, and then press . See Clearing jams for more information. The page that jammed does not reprint after you clear the jam. Jam Recovery in the Setup Menu is set to Off.Set Jam Recovery to Auto or On. See the Menus and Messages Guide for more information. Blank pages feed into the output bin. An incorrect media type is loaded in the tray being printed from.Load the correct type media for your print job, or change the Paper Type to match the type of media loaded. See the Menus and Messages Guide for more information. Downloaded From ManualsPrinter.com Manuals
Solving print quality problems 144 Troubleshooting Solving print quality problems To help isolate print quality problems, print the Print Quality Test Pages. 1Turn the printer off. 2Press and . Hold them while you turn the printer on, and until the Performing Self Test message appears. Config Menu.appears. 3Press until Prt Quality Pgs appears, and then press . The pages are formatted. The Printing Quality Test Pages message appears, then the pages print. The message remains on the operator panel until all the pages print. After the Print Quality Test Pages print, to exit the Config Menu: 4Press until Exit Config Menu appears, and then press to complete the procedure. The information in the following table may help you solve print quality problems. If these suggestions still do not correct the problem, call for service. You may have a printer part that requires adjustment or replacement. SymptomCauseSolution Repeating defects Either a toner cartridge, a photodeveloper, the transfer belt or the fuser is defective.Marks occur repeatedly only in one color and multiple times on a page: Replace the toner cartridge if the defects occur every: – 45.1mm (1.78in.) –60mm (2.4in.) Replace the photodeveloper (black alone or all other colors at once) if the defects occur every: – 31.5 mm (1.2 in.) –94mm (3.7in.) Marks occur across the page repeatedly in all colors: Replace the transfer belt if the defects occur every 27 mm (1.1 in.) Replace the fuser if the defects occur every 140 mm (5.5 in.) Color misregistration Color has shifted outside of the appropriate area or has been superimposed over another color area.Top to Bottom or Left to Right: 1Re-seat the cartridges by removing them from the printer and then reinserting them. 2Adjust the color alignment. Use the Alignment page under the Utilities Menu. ABCDEABCDE ABCDE ABCDE Downloaded From ManualsPrinter.com Manuals
Solving print quality problems 145 Troubleshooting Dark Lines A toner cartridge, a photodeveloper, or the transfer belt is defective.If the problem is on the front (print side) of the page: 1Replace the color cartridge causing the line. 2If you still have the problem, replace the photodeveloper (black alone or all other colors at once). If the problem is on the back of the page, replace the transfer belt. Light colored line, white line, or wrong colored lineThe LEDs are dirty. See Cleaning the LEDs. Streaked horizontal linesA toner cartridge, a photodeveloper, the transfer belt, or fuser may be defective, empty, or worn.Replace the cartridge, photodeveloper (black alone or all other colors at once), transfer belt, or fuser as needed. Streaked vertical lines Toner is smeared before fusing to the paper. The toner cartridge is defective. If paper is stiff, try feeding from another tray. Replace the color cartridge causing the streaks. Print irregularities Paper has absorbed moisture due to high humidity. You are using paper that does not meet the printer specifications. A photodeveloper, the transfer belt or the fuser is worn or defective. Load paper from a fresh package in the paper tray. Avoid textured paper with rough finishes. Make sure the printer’s paper type and paper weight settings match the type of paper you are using. Replace photodeveloper (black alone or all other colors at once), the transfer belt or the fuser. SymptomCauseSolution ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE Downloaded From ManualsPrinter.com Manuals
Solving print quality problems 146 Troubleshooting Print too light The Toner Darkness setting is too light, RGB Brightness is too bright, or RGB Contrast is too high. You are using paper that does not meet the printer specifications. Color Saver is On. Toner is low. A toner cartridge is defective or has been installed in more than one printer. Select a different Toner Darkness setting, RGB Brightness setting, or RGB Contrast setting from the printer driver before sending the job to print. Perform a Color Adjust in the Quality Menu. Load paper from a new package. Avoid textured paper with rough finishes. Make sure the paper you load in the trays is not damp. Make sure the printer’s paper type and paper weight settings match the type of paper you are using. Turn Color Saver off. Replace the toner cartridge. Print too dark The Toner Darkness setting is too dark, RGB Brightness is too dark, or RGB Contrast is too high. A toner cartridge is defective. Select a different Toner Darkness setting, RGB Brightness setting, or RGB Contrast setting from the printer driver before sending the job to print. Replace the toner cartridge. Transparency print quality is poor (Print has inappropriate light or dark spots, toner is smeared, horizontal or vertical light bands appear, or color does not project.) You are using transparencies that do not meet the printer specifications. The Paper Type setting for the tray you are using is set to something other than Transparency. Use only transparencies recommended by the printer manufacturer. Make sure the Paper Type setting is set to Transparency. Toner fog or background shading appears on the page A toner cartridge is defective or installed incorrectly. The transfer belt is worn or defective. A photodeveloper is worn or defective. The fuser is worn or defective. Toner is in the paper path. Reinstall or replace the cartridge. Replace the transfer belt. Replace the photodeveloper (black alone or all other colors at once). Replace the fuser. Call for service. Toner rubs off the paper easily when you handle the sheets The Type setting is wrong for the type of paper or specialty media you are using. The Weight setting is wrong for the type of paper or specialty media you are using. The fuser is worn or defective. Change Paper Type to match the paper or specialty media you are using. Change Paper Weight from Plain to CardStock (or other appropriate weight). Replace the fuser. Gray background The Toner Darkness setting is too dark. A toner cartridge is defective. Select a different Toner Darkness setting from the printer driver before sending the job to print. Replace the toner cartridge. SymptomCauseSolution ABCDE ABCDE ABCDE Downloaded From ManualsPrinter.com Manuals
Solving print quality problems 147 Troubleshooting Uneven print density A toner cartridge is defective. A photodeveloper is worn or defective. The transfer belt is worn or defective. Replace the toner cartridge. Replace the photodeveloper (black alone or all other colors at once). Replace the transfer belt. Characters have jagged or uneven edges A downloaded font is not supported.If you are using downloaded fonts, verify the fonts are supported by the printer, the host computer, and the software application. Ghost Images Toner is low. Make sure the Paper Type setting is correct for the paper or specialty media you are using. Replace the toner cartridge. Clipped images (Some of the print is cut off on the sides, top, or bottom of the paper.)Guides in the selected tray are set for a different size paper than what is loaded in the tray.Move the guides in the tray to the proper positions for the size loaded. Incorrect margins Guides in the selected tray are set for a different size paper than what is loaded in the tray. Auto size sensing is set to off, but you loaded a different size paper in a tray. For example, you inserted A4 size paper into the selected tray but did not set the Paper Size to A4. Move the guides in the tray to the proper positions for the size loaded. Set the Paper Size to match the media in the tray. Skewed print (Print is inappropriately slanted.) Guides in the selected tray are not in the correct position for the paper size loaded in the tray. You are using paper that does not meet the printer specifications. Move the guides in the tray to the proper positions for the size loaded. See Media specifications. Blank pages Packaging material has not been removed from one or more toner cartridges Toner is low. One or more toner cartridges are defective or empty. Remove the packaging material from the appropriate toner cartridge Remove the toner cartridge by gripping the handles with both hands. Shake the cartridge back and forth and reinstall it. Replace the defective toner cartridges. SymptomCauseSolution ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE Downloaded From ManualsPrinter.com Manuals
Color quality information 148 Troubleshooting Color quality information This section helps you understand how operations available on the printer can be used to adjust and customize color output. Quality Menu Selections available in the Quality Menu provide the user with multiple options that can adjust color characteristics of the printer. Values marked by an asterisk (*) are the factory default settings. Values selected in the printer PostScript or PCL emulation drivers for Windows will override printer settings.Solid color pages A toner cartridge is defective. Your printer requires servicing. Replace the toner cartridge. Call for service. The paper curls badly once it prints and exits to a bin The Type and Weight settings are not appropriate for the type of paper or specialty media you are using. The paper has been stored in a high humidity environment. Change Paper Type and Paper Weight to match the paper or specialty media loaded in the printer. Load paper from a fresh package. Store paper in its original wrapper until you use it. See Storing paper. Menu itemPurposeVa l u e s Print ModeTo determine whether images are printed in a monochrome grayscale or in color.Color* Black Only Color CorrectionTo adjust the printed color to better match the colors of other output devices or standard color systems. Due to the differences between additive and subtractive colors, certain colors that appear on the monitor are impossible to duplicate on the printer.Auto* Applies different color conversion tables to each object on the printed page, depending on the type of object and how the color for each object is specified. Off No color correction is implemented. Manual Allows customization of the color conversion tables applied to each object on the printed page, depending on the type of object and how the color for each object is specified. Customization is performed using the selections available under the Manual Color menu item. Print ResolutionSelects the quality of printed output.2400 IQ* Toner DarknessLighten or darkens printed output and conserves toner.1 to 5 4* is the default setting. Select a lower number to lighten the printed output or save toner. SymptomCauseSolution Downloaded From ManualsPrinter.com Manuals
Quality Menu 149 Troubleshooting Color SaverTo conserve toner in graphics and images yet maintain high quality text. The amount of toner used to print graphics and images is reduced; however, text is printed with default toner usage. If selected, this setting overrides Toner Darkness settings. Color Saver is not supported in PPDS, and partially supported by the PCL emulation driver.On* Off RGB BrightnessTo assist in making brightness, contrast, and saturation adjustments to color output. These functions do not affect files where CMYK color specifications are being used. See Frequently asked questions (FAQ) about color printing for more information on color specifications.-6, -5, -4, -3, -2, -1, 0*, 1, 2, 3, 4, 5, 6-6 is maximum decrease 6 is maximum increase 0 is the default setting RGB Contrast0*, 1, 2, 3, 4, 5 0 is the default setting 5 is maximum increase RGB Saturation0*, 1, 2, 3, 4, 5 0 is the default setting 5 is maximum increase Color BalanceTo provide users with the ability to make subtle color adjustments to printed output by increasing or decreasing the amount of toner being used for each color plane individually.Cyan -5, -4, -3, -2, -1, 0*, 1, 2, 3, 4, 5 -5 is maximum decrease 5 is maximum increase Magenta Ye l l o w Black Reset Defaults Sets values for Cyan, Magenta, Yellow, and Black to 0 (zero). Color SamplesTo assist users in selecting colors to be printed. Users can print color samples pages for each of the RGB and CMYK color conversion tables used in the printer. The color samples pages consist of a series of colored boxes along with the RGB or CMYK combination that creates the color observed for each particular box. These pages can be useful in helping users decide which RGB or CMYK combinations to use in their software applications to create the desired printed color output. Note:The printer Embedded Web Server interface, which is only available on network models, offers users more flexibility. It lets users access the printing of Detailed Color Samples.sRGB Display Prints RGB samples using sRGB Display color conversion tables. sRGB Vivid Prints RGB samples using sRGB Vivid color conversion tables. Display — True Black Prints RGB samples using Display — True Black color conversion tables. Vivid Prints RGB samples using Vivid color conversion tables. Off—RGB Color conversion is implemented. US CMYK Prints CMYK samples using US CMYK color conversion tables. Euro CMYK Prints CMYK samples using Euro CMYK color conversion tables. Vivid CMYK Prints CMYK samples using Vivid CMYK color conversion tables. Off—CMYK No color conversion is implemented. Menu itemPurposeVa l u e s Downloaded From ManualsPrinter.com Manuals
Quality Menu 150 Troubleshooting Manual ColorTo let users customize the RGB or CMYK color conversions applied to each object on the printed page. Color conversion of the data specified using RGB combinations can be customized based on object type (text, graphics, or image) through the printer operator panel.RGB ImagesRGB Display*: Applies a color conversion table to produce output that approximates the colors displayed on a computer monitor. sRGB Vivid: Increases color saturation for the sRGB Display color conversion table. Preferred for business graphics and text. Display — True Black: Applies color conversion table to produce output that approximates the colors displayed on a computer monitor while using only black toner for neutral gray colors. Vivid: Applies a color conversion table that produces brighter, more saturated colors. Off: No color conversion is implemented. RGB TextsRGB Display sRGB Vivid* Display - True Black Vivid Off RGB Graphics CMYK Image CMYK Text CMYK Graphics US CMYK* (country/region-specific factory default values): Applies a color conversion table to approximate SWOP color output. Euro CMYK* (country/region-specific factory default values): Applies color conversion table to approximate EuroScale color output. Vivid CMYK: Increases color saturation for the US CMYK color conversion table. Off: No color conversion is implemented. Enhance Fine LinesA selection to enable a print mode preferable for certain files containing fine line detail, such as architectural drawings, maps, electronic circuit diagrams, and flow charts. Note:Enhance Fine Lines is not a menu item. This setting is only available on the PCL emulation driver or PostScript driver or on the printer Embedded Web Server.On In the driver, enable the check box. Off* In the driver, disable the check box. Menu itemPurposeVa l u e s Downloaded From ManualsPrinter.com Manuals