Uneven print density, Vertical voids appear on prints

Troubleshooting

218 Uneven print density

Action	Yes	No
Replace the imaging unit, and then resend the print job.	Contact customer	The problem is solved.
	support.
Is the print density uneven?

Vertical voids appear on prints

Leading edge

Trailing edge

Action	Yes	No

Step 1	Go to step 2.	The problem is solved.

aMake sure your software program is using a correct fill pattern.

bResend the print job.

Do vertical voids appear on prints?

Step 2

Go to step 3.

The problem is solved.

aFrom the printer control panel, set the paper type and weight in the Paper menu to match the paper loaded in the tray.

bResend the print job.

Do vertical voids appear on prints?
Step 3	Go to step 4.	The problem is solved.
Check if you are using a recommended type of paper.

aLoad the specified tray or feeder with a recommended type of paper.

bResend the print job.

Do vertical voids appear on prints?

Page 218

Image 218

Lexmark 279 manual Uneven print density, Vertical voids appear on prints, Troubleshooting 218

Contents

Users Guide March Contents Faxing CopyingMailing Scanning Maintaining the printer 151 Saving money and the environment 143Securing the printer 149 Managing the printer 161 Index 253 Troubleshooting 176235 Safety information Safety informationPage Learning about the printer Learning about the printerFinding information about the printer What are you looking for? Find it here Selecting a location for the printer Other countries and regions-See the printed Printer configurations Understanding the basic functions of the scanner Using the ADF Using the ADF and scanner glassUsing the printer control panel Using the scanner glass Sleep button light Printer status Indicator light Printer statusUse Learning about the printer Accessing the controller board Additional printer setupInstalling internal options Available internal optionsPage Installing an optional card Access the controller board Installing hardware options Order of installation Installing optional trays Page Page Attaching cables Adding available options in the print driver Setting up the printer softwareInstalling the printer For Windows users Networking Preparing to set up the printer on an Ethernet networkPreparing to set up the printer on a wireless network Select a wireless connection setup Connecting the printer using the Wireless Setup WizardSettings Network/Ports Active NIC Auto From the printer control panel, navigate to Additional printer setup Using the Push Button Configuration PBC methodUsing the Personal Identification Number PIN method Follow the instructions on the printer display Click Settings Network/Ports Wireless Settings Reports Menu Settings Printing a network setup Settings Reports Network Setup Settings Paper Menu Paper Size/Type Setting the paper size and typeConfiguring Universal paper settings Loading paper and specialty mediaPage Page Page Page Loading the multipurpose feeder Page Page Page Linking and unlinking trays Click Settings Paper MenuLinking and unlinking trays Creating a custom name for a paper type Using the Embedded Web ServerUsing the printer control panel Assigning a custom paper type Settings Paper Menu Custom Types Paper guidelines Paper characteristicsPaper and specialty media guide Selecting paper Using recycled paper and other office papersFiber content Selecting preprinted forms and letterhead Unacceptable paper examples 182 x 257 mm 17 x 10.1 Letter 215.9 x 279.4 mm X 11 Supported paper sizes, types, and weightsSupported paper sizes Paper and specialty media guide Supported paper types and weights Paper type 250 ‑ or Multipurpose feeder Duplex mode Tips on using transparencies Using specialty mediaTips on using letterhead Tips on using envelopesPage Storing paper Printing a document Adjusting toner darknessPrinting Printing a document Settings Security Settings Print Settings Quality Menu Toner DarknessAdjust the toner darkness, and then press Storing print jobs in the printer Modifying confidential print settings Printing confidential and other held jobs Canceling a print job from the computer Canceling a print jobCanceling a print job from the printer control panel Printing information pages For Macintosh users Making copies Copying using the ADFCopying Making a quick copy Copying photos Copying using the scanner glassCopy Content Type Photo Copying on specialty media Copying on letterhead Copying to a different size Customizing copy settingsMaking copies using paper from a selected tray Reducing or enlarging copies Making a copy lighter or darker Adjusting copy quality Collated Not collated Collating copiesPlacing separator sheets between copies Placing an overlay message on each Placing information on copiesCopying multiple pages onto a single sheet Copying From the printer control panel, navigate to Understanding the copy options Canceling a copy jobCanceling a copy job from the printer control panel Copies Scale Content TypeCopy to Darkness Overlay Content SourceAdvanced Duplex Separator Sheets Configuring e‑mail settings Setting up the printer to e-mailSetting up the e-mail function Click Settings E-mail/FTP Settings E-mail Settings Sending an e‑mail using a shortcut number Canceling an e-mailCreating an e-mail shortcut using the Embedded Web Server Creating an e-mail shortcut Faxing Setting up the printer to faxFaxing Using the Embedded Web Server for fax setup Initial fax setupUsing the printer control panel for fax setup Click Settings Fax Settings Analog Fax Setup Choosing a fax connection Setup 1 Printer is connected to a dedicated fax lineTips for this setup Scenario 1 Standard telephone line Connected to the same telephone wall jack Connected to different wall jacks To connect Scenario 2 Digital Subscriber Line DSL Scenario 3 VoIP telephone service Setup 1 Printer is connected directly to a cable modem Faxing Part name Part number Lexmark adapter plug 40X8519 Page Connecting the printer to a wall jack in Germany Connecting to a distinctive ring service Setting the outgoing fax or station name and number Sending a fax using the printer control panel Setting the date and timeConfiguring the printer to observe daylight saving time Sending a fax Sending a fax at a scheduled time Sending a fax using the computerSending a fax using a shortcut number Click Settings Manage Shortcuts Fax Shortcut Setup Customizing fax settingsChanging the fax resolution Viewing a fax log Click Settings Reports Click Fax Job Log or Fax Call LogMaking a fax lighter or darker Blocking junk faxes Holding and forwarding faxes Canceling an outgoing faxCanceling a fax job after scanning the original documents Holding faxes Understanding the fax options ResolutionClick Settings Fax Settings Forwarding a fax Orientation Binding Scanning to an FTP address Creating an FTP shortcut using the Embedded Web ServerScanning Creating shortcuts Scanning to an FTP address Scanning to an FTP address using a shortcut numberScanning to a computer Scanning to a computer Click Scan Profile Create Scan Profile Menus list Paper Menu Reports Network/Ports Security SettingsUnderstanding the printer m enus Understanding the printer menus Paper Size/Type menu Default Source menuPaper menu MP Feeder Size MP Feeder Type Manual Envelope Size Manual Paper SizeManual Paper Type Manual Envelope Type Paper Texture menu Configure MP menuSubstitute Size menu Envelope Texture Labels TextureBond Texture Rough Envelope Texture Paper Weight menu Paper Loading menu Custom Types menu Understanding the printer menus 100 Understanding the printer menus 101 Universal Setup menuCustom Scan Sizes menu Understanding the printer menus 102 Reports menuReports menu Standard Network or Network x menu Network/Ports menuActive NIC menu Understanding the printer menus 103 Understanding the printer menus 104 To access the menu, navigate to either of the followingNetwork Card menu UseTo TCP/IP menu Understanding the printer menus 105 IPv6 menu Understanding the printer menus 106 Wireless menu Understanding the printer menus 107 AppleTalk menu Smtp Setup menuTo access the menu, navigate to any of the following Understanding the printer menus 109 Security menuSecurity Audit Log menu Set Date and Time menu Understanding the printer menus 110 Understanding the printer menus 111 Settings menuGeneral Settings menu Understanding the printer menus 112 Understanding the printer menus 113 AlarmsTimeouts Understanding the printer menus 114 Error RecoveryPrint Recovery Copy Settings menu Understanding the printer menus 115 Understanding the printer menus 116 Understanding the printer menus 117 Understanding the printer menus 118 General Fax Settings Fax Settings menuFax Mode Analog Fax Setup menu Understanding the printer menus 119 Fax Send Settings Understanding the printer menus 120 Understanding the printer menus 121 Enable Color Fax Scans Understanding the printer menus 122 Fax Receive Settings Understanding the printer menus 123 Fax Log Settings Understanding the printer menus 124 Understanding the printer menus 125 Speaker SettingsAnswer On Understanding the printer menus 126 ‑mail Settings menu‑mail Server Setup Format Understanding the printer menus 127 Text DefaultText/Photo Default Orientation ‑mail images sent as Photo DefaultUnderstanding the printer menus 128 Use Multi ‑page Tiff Use cc/bcc FTP Settings menuUnderstanding the printer menus 129 Understanding the printer menus 130 Understanding the printer menus 131 FTP Bit Depth Understanding the printer menus 132 Finishing menu Print SettingsSetup menu Understanding the printer menus 133 Copies Understanding the printer menus 134Duplex Binding Blank Pages Quality menu Understanding the printer menus 135 Utilities menu Understanding the printer menus 136 Understanding the printer menus 137 XPS menuPCL Emul menu Understanding the printer menus 138 Understanding the printer menus 139 Tray Renumber Font Size Html menuUnderstanding the printer menus 140 Scale Understanding the printer menus 141 Help menuImage menu Menu item Description Understanding the printer menus 142 Saving paper and toner Using recycled paperSaving money and the environment Conserving supplies Reducing printer noise Using Eco‑modeSaving energy Check your first draft for accuracy Settings Settings General Settings Timeouts Sleep Mode Adjusting Sleep modeSettings General Settings Timeouts Saving money and the environment 145 Using Schedule Power Modes Using Hibernate modeAdjusting the brightness of the printer display Click Settings General Settings Recycling Lexmark packaging RecyclingRecycling Lexmark products Returning Lexmark cartridges for reuse or recyclingPage Statement of Volatility Back Exit Config MenuSecuring the printer Erasing volatile memory Finding printer security information Lexmark security Web Maintaining the printer Cleaning printer partsCleaning the printer Maintaining the printer 151 Close the scanner cover Cleaning the scanner glassMaintaining the printer 152 Maintaining the printer 153 Checking the status of parts and suppliesEstimated number of remaining pages Status/Supplies View Supplies Ordering supplies Using genuine Lexmark parts and suppliesOrdering a maintenance kit Ordering a toner cartridge Ordering an ADF separator pad Maintenance kit Part numberStoring supplies Maintaining the printer 155 Maintaining the printer 156 Replacing suppliesReplacing the toner cartridge Replacing the imaging unit Page Page Moving the printer to another location Moving the printerBefore moving the printer Shipping the printer Setting up e‑mail alerts Finding advanced networking and administrator informationAccessing the remote control panel Managing the printer Managing the printer 162 Click Settings Print Settings Supply NotificationsViewing reports Notification Description Replaced to continue printing Restoring factory default settingsNotification Description Non Continuable Stop1,2 Load paper properly Clearing jamsAvoiding jams Clearing jams 164 Understanding jam messages and locations Use recommended paper Clearing jams 166 Jam access area Printer control panel message What to do‑page jam, open front door y.xx Page Page ‑page jam, open rear door y.xx Models, select Next Clear the jam, press OK ‑page jam, clear standard bin y.xx ‑page jam, remove tray 1 to clear duplex y.xx Pull the tray completely out of the printer ‑page jam, open tray x y.xx ‑page jam, clear manual feeder y.xx Models, select Next Clear the jam, press OK ‑page jam, open automatic feeder top cover y.xx Clearing jams 175 Troubleshooting Understanding the printer messages Close front door Troubleshooting 177Change paper source to paper size load orientation Complex page, some data may not have printed Fax partition inoperative. Contact system administrator Error reading USB drive. Remove USBError reading USB hub. Remove hub Fax Station Name not set up. Contact system administrator Imaging unit nearly low 84.xy Fax Station Number not set up. Contact system administratorImaging unit low 84.xy Imaging unit very low, x estimated pages remain 84.xy Insufficient memory for Flash Memory Defragment operation Insufficient memory, some held jobs will not be restoredInsufficient memory to support Resource Save feature Insufficient memory, some Held Jobs were deleted Load manual feeder with paper size paper orientation Troubleshooting 181Load manual feeder with custom type name paper orientation Load paper source with custom string paper orientation Load paper source with custom type name paper orientation Maintenance kit low 80.xyTroubleshooting 182 Load paper source with paper size paper orientation Network x software error Maintenance kit nearly low 80.xyMaintenance kit very low, x estimated pages remain 80.xy Memory full, cannot print faxes Not enough free space in flash memory for resources No analog phone line connected to modem, fax is disabledNon‑Lexmark supply type, see User’s Guide 33.xy Printer had to restart. Last job may be incomplete Remove paper from standard output bin Reinstall missing or unresponsive cartridge 31.xyReinstall missing or unresponsive imaging unit 31.xy Replace all originals if restarting job Replace defective imaging unit 31.xy Troubleshooting 186Replace cartridge, printer region mismatch 42.xy Replace imaging unit, 0 estimated pages remain 84.xy Replace jammed originals if restarting job Scanner disabled by adminTroubleshooting 187 Replace unsupported imaging unit 32.xy Standard network software error Serial option x errorSmtp server not set up. Contact system administrator Scanner jam, remove all originals from the scanner 2yy.xx Supply needed to complete job Standard USB port disabledToo many flash options installed Too many trays attached Basic printer problems Solving printer problemsWeblink server not set up. Contact system administrator Troubleshooting 190 Troubleshooting 191 Printer display is blank Hardware and internal option problemsTroubleshooting 192 Cannot detect internal option Action Yes Step Problem is solved Go to step Tray problemsTroubleshooting 193 Step Problem is solved. Go to step Action Yes Step Go to step Problem is solved Paper feed problemsTroubleshooting 194 Jammed pages are not reprinted Paper jam message remains after jam is cleared Solving print problemsPrinting problems Incorrect characters print Troubleshooting 196 Large jobs do not collate Click File Print Advanced Print As Image OK OK Troubleshooting 197Print jobs do not print Troubleshooting 198 Print job takes longer than expected Settings General Settings Print Recovery Page Protect Off Printing slows down Tray linking does not work Troubleshooting 200Settings General Settings Timeouts Print Timeout Unexpected page breaks occur Characters have jagged or uneven edges Print quality problemsTroubleshooting 201 Clipped pages or images Troubleshooting 202 Compressed images appear on prints Troubleshooting 203 Gray background on prints Troubleshooting 204 Horizontal voids appear on prints Troubleshooting 205 Incorrect margins on prints Print irregularities Troubleshooting 206Paper curl Troubleshooting 207 Troubleshooting 208 Print is too dark Troubleshooting 209 Print is too light Troubleshooting 210 Printer is printing blank pages Troubleshooting 211 Printer is printing solid black pages Troubleshooting 212 Repeating defects appear on prints Skewed print Troubleshooting 213Shadow images appear on prints Troubleshooting 214 Streaked horizontal lines appear on prints Troubleshooting 215 Streaked vertical lines appear on prints Troubleshooting 216 Toner fog or background shading appears on prints Toner specks appear on prints Troubleshooting 217Toner rubs off Transparency print quality is poor Vertical voids appear on prints Troubleshooting 218Uneven print density Solving copy problems Copier does not respond Poor copy quality Troubleshooting 220Scanner unit does not close Troubleshooting 221 Partial document or photo copies Troubleshooting 222 Solving fax problemsFax function is not set up Caller ID is not shown Troubleshooting 223Settings General Settings Run initial setup Troubleshooting 224 Cannot send or receive a fax Troubleshooting 225 Troubleshooting 226 Troubleshooting 227 Can receive but not send faxes Click Settings Fax Settings Analog Fax Setup Solving scanner problemsTroubleshooting 228 Received fax has poor print quality Scanner does not respond Scanning takes too long or freezes the computer Troubleshooting 230Scan job was not successful Stamp or Overwrite Troubleshooting 231 Poor scanned image quality Partial document or photo scans Troubleshooting 232Embedded Web Server does not open Mail Contacting customer supportTech Library Troubleshooting 234 Live chat Lexmark International, Inc All rights reserved Product informationEdition notice 236 Licensing noticesTrademarks Noise emission levels 237 Product disposal Temperature informationIndia E-Waste notice 238 Laser advisory label Static sensitivity noticeLaser notice 239 Mode Description Power consumption Watts Power consumptionProduct power consumption 240 Industry Canada compliance statement Avis de conformité aux normes de l’industrie du Canada 242 European Community EC directives conformityRegulatory notices for telecommunication terminal equipment 243 Japanese telecom notice 244 Verwendung dieses Produkts in der Schweiz Using this product in SwitzerlandUtilisation de ce produit en Suisse Uso del prodotto in Svizzera Exposure to radio frequency radiation Regulatory notices for wireless productsModular component notice Industry Canada Canada 247 Taiwan NCC RF notice statementIndustry Canada Canada 248 249 ΤΗΣ Οδηγιασ 1999/5/ΕΚ Lexmark International, Inc., Lexington, KY Limited warrantyPatent acknowledgment 250 251 Limited warranty serviceExtent of limited warranty 252 Limitation of liabilityAdditional rights Index Symbols250‑sheet tray installing 19 550‑sheet tray installing NumericsPage Page Page Page Page Page

Troubleshooting

218

Uneven print density

Action

Vertical voids appear on prints

Action

Step 2

Step 3