Accessing the system board

CAUTION—SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memory devices sometime after setting up the printer, then turn the printer off, and unplug the power cord from the wall outlet before continuing. If you have any other devices attached to the printer, then turn them off as well, and unplug any cables going into the printer.

Note: This task requires a flathead screwdriver.

1Open the cover.

2Remove the metal panel.

aTurn the screws on the panel counterclockwise to remove them.

Additional printer setup

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Lexmark C790 manual Accessing the system board

Contents

January Users Guide Contents Understanding printer menus Loading paper and specialty mediaPaper and specialty media guide Printing Clearing jams 163 Administrative support 160Troubleshooting 174 Maintaining the printer 150 212 Safety informatio n Safety information Http//support.lexmark.com Learning about the printe rThank you for choosing this printer Finding information about the printer Selecting a location for the printer Printer configurations Description Understanding the printer control panel USB port Understanding the home screen Understanding th e home s creen Sample touch screen Using the touch-screen buttons Other touch-screen buttons Features Activating the home screen applications Accessing the Embedded Web ServerCusto miz in g the home s c reen Showing or hiding icons on the home screen Forms and Favorites Eco-Settings Remote Operator Panel Exporting a configurationClick Configure Export Showroom Click Configure Import Importing a configuration Available internal options Additional printer setupInstalling internal options Using the security lock feature Accessing the system board Hard disk connector Page Installing a memory card Ridge Notch Installing a flash memory or firmware card Installing an Internal Solutions Port Page Page Page Installing a printer hard disk Page Page Page Reattach the system board cover Additional printer setup Removing a printer hard disk Installing optional trays Order of installation Supported finishing features Finisher bin Standard bin Legal Letter Statement Universal Envelopes any size Oficio Attaching cablesExecutive Folio Reports Menu Settings Verifying printer setupPrinting a menu settings Installing the printer software Setting up the printer softwarePrinting a network setup Updating available options in the printer driver Setting up wireless printingDouble-clickPrinter Setup Utility or Print Center Installing the printer on a wireless network Windows Insert the Software and Documentation CD Prepare to configure the printer Installing the printer on a wireless network Macintosh Enter the printer information Configure the printer for wireless access Click Default Browser tab More Printers Configure your computer to use the printer wirelessly Select Ethernet connection, and then click Continue Installing the printer on a wired networkFor Windows users For Macintosh users Mac OS X version Mac OS X version 10.5 or laterMac OS X version 10.4 or earlier Click Properties Ports tab Click the Default Browser tab More Printers Setting up serial printing Click Properties Click Advanced Options Custom InstallClick Continue Conserving supplies Using recycled paperMinimiz in g you r printers env ironmental imp act Saving paper and toner Avoid paper jams Using Eco-ModeSaving energy Reducing printer noise Using the printer control panel Adjusting Sleep ModeUsing Hibernate Mode Using the Embedded Web Server Recycling Adjusting the brightness of the displayClick Settings General Settings Sleep Button Settings Click Settings General Settings Returning Lexmark cartridges for reuse or recycling Recycling Lexmark productsRecycling Lexmark packaging Loadin g pap er and specialt y m edia Setting the paper size and typeConfiguring Universal paper settings Loading the standard or optional 550-sheet tray Page Page Loading the 2000-sheet high-capacity feeder Page Loading the multipurpose feeder Paper Envelopes Transparencies Linking trays Linking and unlinking trays Linking exit bins Paper Menu Bin SetupClick Settings Paper Menu Custom Name type a name Submit Unlinking trays Paper Menu Paper Size/Type Configuring a custom nameAssigning a custom paper type name Paper guidelines Paper characteristicsPaper an d spe cialty med ia guide Selecting preprinted forms and letterhead Storing paper Using recycled paper and other office papers Letter Legal Executive Oficio México Folio Statement Supported paper sizes, types, and weightsSupported paper sizes 215.9 x 355.6 mm 3.375 x 6.50 in. to Envelopes4 Supported paper types and weightsPaper Card stock Transparencies1 Labels3 Printing a document Adjusting toner darknessPrintin g Printing a document Printing from a flash drive Click Settings Print Settings Quality Menu Toner DarknessPrinting from a flash drive Flash drive Supported flash drives and file types Printing specialty documents Tips on using letterheadTips on using transparencies Tips on using envelopesPage Storing print jobs in the printer Tips on using card stockPrinting confidential and other held jobs Print Printing information pagesPrinting confidential and other held jobs Printing a font sample list Printing a directory list Canceling a print jobCanceling a print job from the printer control panel Canceling a print job from the computerPage Menus list Understanding printer me nus Supplies menu Paper menu Default Source menu Tray x Type Paper Size/Type menuTray x Size MP Feeder Type MP Feeder Size Manual Envelope Type Manual Paper SizeManual Paper Type Manual Envelope Size Paper Texture menu Configure MP menuSubstitute Size menu Vinyl Labels Texture Glossy TextureHeavy Glossy Texture Labels Texture Paper Weight menu Rough Envelope Weight Vinyl Labels WeightBond Weight Envelope Weight Paper Loading menu Custom Types menu Custom Bin Names menu Universal Setup menuCustom Names menu 100 Bin Setup menu Print Directory Asset Report Reports menuReports menu 101 102 Network/Ports menuActive NIC menu Standard Network or Network x menus 103 Network Reports menu 104 Network Card menuTCP/IP menu 105 IPv6 menu 106 Wireless menu 107 AppleTalk menuStandard USB menu USB Buffer 108 ENA Netmask Parallel x menu109 ENA Address 110 111 Serial x menu Serial Buffer 112 113 Smtp Setup menu 114 115 Miscellaneous Security Settings menuSecurity menu Confidential Print menu 116 Disk Wiping menu 117 Security Audit Log menu 118 Set Date and Time menu Display Language Settings menuGeneral Settings menu 119 Keyboard Quiet ModeRun Initial setup 120 Displayed Information 121Paper Sizes Time Format 122Home screen customization Date Format 123 124 AlarmsTimeouts 125 Print Recovery 126 Flash Drive menu 127 128 129 Setup menu 130 Job Accounting menu 131 Separator Source Finishing menu132 Offset Pages 133Staple Job 134 Quality menu Color Samples 135RGB Brightness RGB Contrast RGB Saturation Color Balance Manual Color Spot Color Replacement Color Adjust136 137 Utilities menuXPS menu 138 PostScript menu 139 PCL Emul menu Tray Renumber 140 141 Scale Html menu142 Font Size 143 Help menuImage menu 144 145 Statement of VolatilityDisposing of a hard drive 146 Using the printer control panelErasing volatile memory Erasing non-volatile memory 147 Using the Embedded Web ServerErasing printer hard disk memory 148 Configuring printer hard disk encryptionTouch Disk Encryption Enable 149 150 Cleaning the exterior of the printerCleaning the printhead lenses Maintainin g the printer 151 Storing supplies Ordering a print cartridge Checking the status of suppliesOrdering supplies Checking the status of supplies from a network computer 153 Ordering a fuser or a transfer moduleOrdering a waste toner bottle Ordering staple cartridges 154 Ordering a cleaning kitReplacing supplies Replacing a print cartridge 155 156 157 Replacing the waste toner bottle 158 Moving the printerBefore moving the printer 159 Moving the printer to another locationShipping the printer Checking the virtual display Adminis tra tive supportFinding advanced networking and administrator information Using the Embedded Web Server 161 Setting up e-mail alertsClick Settings Viewing reports 162 Restoring factory default settingsSettings General Settings Factory Defaults Restore Now Paper tray recommendations Cleari ng jamsAvoiding jams Understanding jam numbers and locations 200-239 24x 250 400-403 431-458 455 164 165 Paper jam 166 Paper jamsPaper jam in the fuser Paper jam under the fuser 167 168 24x paper jamPaper jam in Tray 169 Paper jam in the optional trays 170 460-461 paper jams 171 431-454, and 456-458 paper jamsStaple jam 172 173 Understanding printer messages Trou blesh ootingChecking an unresponsive printer Close paper transport cover Change paper source to custom stringChange paper source to custom string load orientation Change paper source to paper size paper type Close finisher top cover Disk problemError reading USB drive. Remove USB Close finisher side door Insert staple cartridge Install binInstall envelope feeder Install Tray Load src with type size Load src with custom type nameLoad src with custom string Load src with size Load staples Load Manual Feeder with custom type nameLoad Manual Feeder with custom string Load Manual Feeder with paper type paper size 180 Reattach binReattach bin x y Remove paper from standard output bin Remove paper from all bins Restore held jobs?Some held jobs were not restored Remove paper from bin Xx color cartridge part number unsupported by device Insufficient memory to support Resource Save featurePrinter service required Xx Missing or defective color cartridge Insufficient memory, some Held Jobs were deleted Insufficient memory, some held jobs will not be restoredInsufficient memory to collate job Insufficient memory for Flash Memory Defragment operation Defective flash detected Serial option x errorStandard network software error Network x software error Standard parallel port disabled Parallel port x disabledSerial port x disabled Standard USB port disabled Too many flash options installed Configuration change, some held jobs were not restoredInput config error Too many disks installed Disk full Too many trays attachedIncompatible output bin Remove defective disk Xx Replace waste toner bottle Xx Replace fuserXx Fuser missing Xx Waste toner bottle nearly full Xx Color cartridge very low Solving printing problemsEmulation error, load emulation option Xx color cartridge low 190 Error message about reading USB drive appearsPrint jobs do not print 191 Confidential and other held jobs do not printPrint job takes longer than expected Large jobs do not collate Job prints from the wrong tray or on the wrong paperIncorrect characters print Tray linking does not work Unexpected page breaks Solving home screen applications problemsSolving option problems An application error has occurred 194 Paper tray problemsSheet drawer problems 195 Internal Solutions Port does not operate correctlyCannot detect flash memory card Cannot detect printer hard disk USB/parallel interface card does not operate correctly Solving paper feed problemsInternal print server does not operate correctly Memory card Printer is printing blank pages Solving print quality problemsPaper jam message remains after jam is cleared Jammed pages are not reprinted 198 Characters have jagged or uneven edgesClipped images Fine horizontal lines appear on color pages 199 Shadow images appear on printsGray background on prints Make Sure the Transfer Belt is not Defective Incorrect margins200 Make Sure There is no Defective Print Cartridge Load Paper from a Fresh Package Paper curlPrint irregularities 201 Make Sure the Fuser is not Defective Print is too darkPrint is too light 202 203 Repeating defects appear on prints Replace the Print Cartridge Skewed printSolid color or black pages appear on prints 204 Ensure That the Fill Pattern is Correct Black or white streaks appear on transparencies or paperStreaked horizontal lines appear on prints 205 206 Toner fog or background shading appears on aToner rubs off 207 Check the Paper Texture SettingTransparency print quality is poor Uneven print density Make Sure There is no Defective or Worn Print Cartridge Solving color quality problemsFAQ about color printing 208 209 What is manual color correction? 210 What are detailed Color Samples and how do I access them?Click Configuration Color Samples Detailed Options 211 Embedded Web Server does not openContacting customer support Lexmark International, Inc All rights reserved Product informationEdition notice 212 213 Trademarks 214 Modular component noticeLicensing notices 215 Noise emission levels Laser advisory label Temperature informationPower consumption Laser notice 217 Industry Canada compliance statementAvis de conformité aux normes de l’industrie du Canada European Community EC directives conformity Industry Canada Canada Regulatory notices for wireless productsRadio interference notice Exposure to radio frequency radiation 219 220 221 Statement of Limited Warranty 222 Extent of limited warranty Additional rights 223 224 225 226 Adobe Systems Incorporated Notice 227 IndexNumerics 228 229 230 231 232 233 234