Lexmark C748x manuals
Computer Equipment > Printer
When we buy new device such as Lexmark C748x we often through away most of the documentation but the warranty.
Very often issues with Lexmark C748x begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Printer Lexmark C748x is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Printer on our side using links below.
278 pages 7.8 Mb
2 Contents11 Safety information13 OverviewUsing this guide Finding information about the printer 15 Additional printer setup46 Using C746x81 Using C748x124 Paper and specialty media guidelines133 Understanding printer menus188 Saving money and the environment Saving paper and tonerUsing recycled paper Conserving suppliesUse both sides of the paper Place multiple pages on one sheet of paper Check your first draft for accuracy Avoid paper jams 189 RecyclingRecycling Lexmark products Recycling Lexmark packaging Returning Lexmark cartridges for reuse or recycling 190 Maintaining the printer202 Clearing jams215 TroubleshootingSolving basic printer problems Understanding printer messages 231 Solving printing problemsConfidential and other held jobs do not print P ARTIAL JOB , NO JOB , OR BLANK PAGE MAKE SURE THE PRINTER HAS SUFFICIENT MEMORY Error message about reading USB drive appears 232 Incorrect characters printJob prints from the wrong tray or on the wrong paper C Large jobs do not collate M AKE SURE COLLATE IS SET TO O REDUCE THE COMPLEXITY OF THE PRINT JOB MAKE SURE THE PRINTER HAS ENOUGH MEMORY Multiplelanguage PDF files do not print 233 Print jobs do not printMAKE SURE THERE IS NO PROBLEM WITH YOUR PRINTERFrom the printer control panel, check the status. If necessary, follow the recovery instructions. MAKE SURE THE PRINTER IS READY TO PRINTMake sure Ready appears on the display before sending a print job. CHECK IF A SUPPLY IS MISSING OR NEEDS REPLACEMENTRemove and then reinstall or replace the supply. CHECK IF THE STANDARD EXIT BIN IS FULLRemove the paper stack from the standard exit bin. CHECK IF THE PAPER TRAY IS EMPTY MAKE SURE THE CORRECT PRINTER SOFTWARE IS INSTALLED operating system and using a compatible printer software. MAKE SURE THE INTERNAL PRINT SERVER IS WORKING PROPERLY MAKE SURE YOU ARE USING A RECOMMENDED USB, SERIAL, OR ETHERNET CABLEFor more information, visit the Lexmark Web site at http://support.lexmark.com. MAKE SURE PRINTER CABLES ARE SECURELY CONNECTED 234 Print job takes longer than expectedREDUCE THE COMPLEXITY OF THE PRINT JOB TURN OFF THE PAGE PROTECT SETTING CHANGE THE ENVIRONMENTAL SETTINGS Printing slows down MAKE SURE TO USE PAPER NOT NARROW ENOUGH TO INVOKE THE SLOWDOWN MODE Printer display is blank Tray linking does not work LOAD THE SAME SIZE AND TYPE OF PAPER U SE THE SAME P APER S IZE AND P APER T YPE Unexpected page breaks I 235 Solving home screen applications problemsAn application error has occurred CHECK THE SYSTEM LOG FOR RELEVANT DETAILS 236 Solving option problems237 MAKE SURE THE NETWORK SOFTWARE IS CONFIGURED CORRECTLYInternal Solutions Port does not operate correctly CHECK THE INTERNAL SOLUTIONS PORT (ISP) CONNECTIONS CHECK THE CABLE MAKE SURE THE NETWORK SOFTWARE IS CONFIGURED CORRECTLY Memory card Option does not operate correctly or quits after it is installed RESET THE PRINTER CHECK TO SEE IF THE OPTION IS CONNECTED TO THE PRINTER MAKE SURE THE OPTION IS INSTALLED CORRECTLY MAKE SURE THE OPTION IS SELECTED Paper tray problems MAKE SURE THE PAPER IS LOADED CORRECTLY RESET THE PRINTER MAKE SURE THE PAPER TRAY IS INSTALLED CORRECTLY CHECK THE CABLE 238 Solving paper feed problems240 Solving print quality problemsCharacters have jagged or uneven edges Clipped images CHECK THE GUIDES CHECK THE PAPER SIZE SETTING 241 Gray background on printsCHECK THE BACKGROUND DARKNESS OR REMOVAL SETTING MAKE SURE THERE IS NO WORN OR DEFECTIVE PRINT OR TONER CARTRIDGE Incorrect margins CHECK THE PAPER SIZE SETTING Light colored line, white line, or incorrectly colored line appears on prints 242 ABCDE ABCDEMAKE SURE THERE IS NO DEFECTIVE PRINT OR TONER CARTRIDGE MAKE SURE THE TRANSFER MODULE IS NOT DEFECTIVE Paper curl 243 Print irregularitiesMAKE SURE THERE IS NO DEFECTIVE PRINT OR TONER CARTRIDGE MAKE SURE THE TRANSFER MODULE IS NOT DEFECTIVE MAKE SURE THE FUSER IS NOT DEFECTIVE 244 Print is too darkCHECK THE DARKNESS, BRIGHTNESS, AND CONTRAST SETTINGS 245 Print is too lightCHECK THE DARKNESS, BRIGHTNESS, AND CONTRAST SETTINGS 246 Printer is printing blank pagesMAKE SURE THERE IS NO PACKING MATERIAL LEFT ON THE PRINT OR TONER CARTRIDGE 247 Repeating defects appear on printsREPLACE THE PRINT OR TONER CARTRIDGE REPLACE THE PHOTOCONDUCTOR REPLACE THE FUSER 248 Shadow images appear on printsMAKE SURE THE PHOTOCONDUCTOR IS NOT DEFECTIVE Skewed print CHECK THE PAPER 249 Solid color or black pages appear on printsMAKE SURE THE PHOTOCONDUCTOR IS NOT DEFECTIVE AND IS INSTALLED CORRECTLY MAKE SURE THE PRINT OR TONER CARTRIDGES ARE INSTALLED CORRECTLY, ARE NOT DEFECTIVE, AND NOT Streaked horizontal lines appear on prints SELECT ANOTHER TRAY OR FEEDER 250 MAKE SURE THERE IS NO WORN, DEFECTIVE, OR EMPTY PRINT OR TONER CARTRIDGETroubleshooting 250 Replace the worn, defective, or empty cartridge. Streaked vertical lines appear on prints SELECT ANOTHER TRAY OR FEEDERPaper Menu > Default Source > select a tray or feeder > Submit MAKE SURE THERE IS NO WORN, DEFECTIVE, OR EMPTY PRINT OR TONER CARTRIDGEReplace the worn, defective, or empty cartridge. MAKE SURE THE TRANSFER MODULE IS NOT WORN OR DEFECTIVEReplace the worn or defective transfer module. Toner fog or background shading appears on the page MAKE SURE THE PRINT OR TONER CARTRIDGE IS INSTALLED CORRECTLY OR IS NOT DEFECTIVEReinstall or replace the defective print or toner cartridge. MAKE SURE THE TRANSFER MODULE IS NOT WORN OR DEFECTIVEReplace the worn or defective transfer module. MAKE SURE THE PHOTOCONDUCTOR IS NOT WORN OR DEFECTIVEReplace the worn or defective photoconductor. 251 MAKE SURE THE FUSER IS NOT WORN OR DEFECTIVETroubleshooting 251 Replace the worn or defective fuser. MAKE SURE THE PRINTER HAS BEEN RECALIBRATED RECENTLYSelect Color Adjust in the Quality menu. MAKE SURE THE APPLICATION HAS NOT SPECIFIED AN OFFWHITE BACKGROUNDCheck the application settings. MAKE SURE NO TONER IS IN THE PAPER PATHContact customer support. Toner rubs offMake sure the paper type and weight settings match the paper loaded in the tray or feeder: 1Weight setting from Normal to Heavy. CHECK THE PAPER TEXTURE SETTING MAKE SURE THE FUSER IS NOT WORN OR DEFECTIVE 252 Toner specksMAKE SURE THERE IS NO WORN OR DEFECTIVE PRINT OR TONER CARTRIDGE M AKE SURE THERE IS NO TONER IN THE PAPER Transparency print quality is poor CHECK THE TRANSPARENCIES Uneven print density MAKE SURE THERE IS NO DEFECTIVE OR WORN PRINT OR TONER CARTRIDGE 253 Solving color quality problems256 Embedded Web Server does not openC HECK THE NETWORK C HECK THE ADDRESS ENTERED IN THE W EB T EMPORARILY DISABLE W EB PROXY Contacting customer support 257 Notices271 Index
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