Solving print quality problems, Blank pages, 155 | Lexmark C935

5Press until Jam Recovery appears, and then press .

6Press until On or Auto appears, and then press .

Solving print quality problems

The information in the following topics may help you solve print quality problems. If these suggestions do not correct the problem, contact Customer Support. You may have a printer part that requires adjustment or replacement.

Isolating print quality problems

To help isolate print quality problems, print the print quality test pages:

1Turn the printer off.

2Load letter- or A4-size paper in the tray in the long-edge orientation.

3 From the control panel, press and hold

and

while turning the printer on.

4Release both buttons when Performing Self Test appears.

The printer performs its power-on sequence, and then Config Menu appears.

5Press until Prt Quality Pgs appears, and then press .

The pages are formatted. Printing Quality Test Pages appears, and then the pages print. The message remains on the display until all the pages print.

6After the print quality test pages print, press until Exit Config Menu appears, and then press .

Blank pages

The printer may need to be serviced. For more information, contact Customer Support.

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Lexmark C935 manual Solving print quality problems, Isolating print quality problems, Blank pages, 155

Contents

April Users Guide Safety information Contents Clearing jams Printing Menus list Supplies menu Paper menu Understanding printer menus Maintaining the printer Administrative support 148 Troubleshooting Index Basic model Printer configurationsConfigured models Learning about the printerPage Fully configured model Control panel item Description Understanding the control panel Available options Installing optionsInstalling internal options Accessing the system board to install internal optionsPage Installing a memory card Installing a flash memory or firmware card Installing a printer hard disk Page Installing an internal print server or port interface card Reinstalling the system board Attaching cables USB port Ethernet port Specify a unit of measurement Setting the Paper Size and Paper TypeConfiguring Universal paper settings Loading paper and specialty media Specify a feed direction Specify the paper height and width Loading the 520-sheet trays Loading the 520-sheet trays Long-edge orientation Short-edge orientation Using A5 or statement paper sizes Loading the 867- and 1133-sheet trays Using the multipurpose feeder Page Page Assigning a Custom Type x name Linking and unlinking traysLinking trays Unlinking trays Click Custom Types Changing a Custom Type x nameClick Paper Menu Click Custom Name Paper guidelines Paper characteristicsPaper and specialty media guide Selecting preprinted forms and letterhead Using recycled paperUnacceptable paper Selecting paper Using letterhead Loading letterhead in the 1133-sheet tray Using transparenciesLoading letterhead in the 867-sheet tray Using labels Using envelopes Storing paper Using card stock Paper sizes supported by the printer Supported paper sizes, types, and weights Paper types and weights supported by the printer Paper types and weights supported by the finisher Bin Supported finishing featuresHorizonal transport unit Finisher standard bin Single staple-One staple Double staple-Two staples Bin 2 booklet-makerExecutive Folio Legal Letter Statement Tabloid Universal Envelopes any Size Size Bi fold Booklet fold Saddle staple Printing a document from a Macintosh computer Installing printer softwarePrinting Printing a document from Windows Job type Description Printing confidential and other held jobs from WindowsPage Printing from a USB flash memory device Printing a font sample list Printing a menu settingsPrinting a network setup Printing information pages Printing the print quality test pages Canceling a print jobCanceling a print job from the control panel Printing a directory list Printing in black and white Canceling a print job from the Windows taskbarCanceling a print job from the Windows desktop Canceling a print job from Mac OS Click Configuration Click Print Settings Click Setup Menu Using Max Speed and Max Yield Understanding jam numbers and locations Clearing jamsAvoiding jams Jam numbers Area name Instructions Paper jams Paper jams Page Paper jam Open Door D Pull the paper down and away from the printer Page Paper jam Open Cover F Remove the jammed paper Close Cover F Press Covers, knobs, and handles located behind finisher Door G 287-288 paper jamsPage Open Door H Remove the jammed paper Close Door H Press Staple jam Page Page Close the staple drawer Close Door G Press Menus list Understanding printer menus Supplies menu Paper Size/Type menu Default Source menuPaper menu Manual Paper Size MP Feeder SizeMP Feeder Type Manual Envelope Size Configure MP menuConfigure MP Manual Paper Type Paper Texture menu Substitute Size menu Paper Loading menu Custom Types menu Bin Setup menu Universal Setup menu Reports menu Reports menu NetWare Setup Network SetupNetwork x Setup Wireless Setup Display Language Settings menuSetup menu Power Saver Timeouts Standby ModeAlarms Printer Language Print Recovery Resource Save Print AreaDownload Target Job Accounting Finishing menu Multipage Order Separator SheetsSeparator Source Multipage Print Quality menu RGB Brightness Print ResolutionToner Darkness Color Saver Manual Color Color Samples Enhance Fine Lines Or SetupUtilities menu Format Disk Remove Held JobsFormat Flash Defragment Flash LCD Contrast Job Acct StatHex Trace Coverage Estimator PCL Emul menu PostScript menu PCL Emulation Settings Symbol Set Tray Renumber Ppds menu Font Size Html menuAuto CR after LF Auto LF after CR Image menu Max Invalid PIN Security menuNetwork/Ports menu TCP/IP menu IPv6 IPv6 menu100 101 Wireless menuStandard Network and Network x menus Job Buffering NPA Mode102 Network Buffer USB Buffer Standard USB and USB x menus103 ENA Netmask Serial x menu104 ENA Address Serial Buffer 105 106 107 NetWare menuAppleTalk menu 108 Help menuLexLink menu USB Direct menu Understanding printer messages List of status and error messages Close cover Deactivating Ppds ModeDefragmenting Flash do not Power OFF Disk recovery x/y XX% do not Power OFF Formatting Flash do not Power OFF Encrypting disk x/y XX% do not Power OFFError reading USB drive Formatting Disk x/y XX% do not Power OFF Invalid file format Invalid Network Code Internal System Error, Reload BookmarksInternal System Error, Reload Security Certificates Invalid Engine Code Programming disk do not Power OFF Menus are disabledNo jobs to cancel No recognized file types Power Saver Restore Held Jobs? Programming System Code do not Power OFFRemote Management Active do not Power OFF Resetting the printer Standard Bin Full Some held jobs were not restoredSome held jobs will not be restored Serial Incorrect paper type, check src Insufficient memory to support Resource Save featureMissing or defective color cartridge Replace unsupported color cartridge Memory full Insufficient memory, some held jobs will not be restoredPpds font error Insufficient memory to collate job Parallel port x disabled Serial option x errorStandard network software error Network x software error Too many flash options installed USB port x disabledConfiguration change, held jobs were not restored Too many disks installed Waste toner box missing Scheduled maintenanceUnformatted disk Replace waste toner box Replace color pc units Staple errorService message Replace black pc unit 122 Emul Error Load Emul Option Conserving supplies Cleaning the exterior of the printerMaintaining the printer Storing supplies 124 Ordering suppliesChecking the status of supplies from a network computer Ordering toner cartridges Ordering a waste toner box Replacing suppliesOrdering photoconductors Ordering staple cartridges 126 127 128 129 130 Cleaning the printhead lenses 131 132 133 134 135 Replacing a photoconductor 136 137 Replacing a toner cartridge 138 139 Recycling Lexmark products Moving the printer to another location Setting the printer up in a new locationMoving the printer Before moving the printer 141 Shipping the printer Disabling control panel menus Administrative supportAdjusting the brightness or contrast of the display Adjusting Power Saver 143 Restoring the factory default settingsEncrypting the printer hard disk 144 Modifying confidential print settingsLocking the entire printer 145 Using 802.1x authenticationSupporting IPSec Supporting SNMPv3 146 Creating an administrative passwordUsing Secure mode Click Create Password 147 Click TCP/IP Port Access 148 TroubleshootingChecking an unresponsive printer Door a will not shut properly Control panel display is blank or displays only diamonds Solving printing problems Job takes longer than expected to print Confidential and other held jobs do not print Large jobs do not collate Job prints from the wrong tray or on the wrong paperIncorrect characters print Tray linking does not work Drawers Solving option problems Solving paper feed problems That jammed does not reprint after you clear the jam Print jobs are not routed to the booklet-maker binPaper jam message remains after jam is cleared 155 Solving print quality problemsIsolating print quality problems Blank pages Gray background Characters have jagged or uneven edgesClipped images Dark lines Paper curl Incorrect marginsLight colored line, white line, or incorrectly colored line Print is too dark Print irregularities 159 Print is too lightMake sure Color Saver is set to Off Toner fog or background shading appears on Repeating defectsSkewed print Solid color pages Transparency print quality is poor Toner rubs offToner specks 162 Solving color quality problemsFAQ about color printing Uneven print density 163 Printed page appears tinted. Can I adjust the color?What is manual color correction? 164 What are detailed Color Samples and how do I access them? 165 Click Configuration Click Color SamplesContacting Customer Support 166 Edition notice 167 Industry Canada notices 168 Radio interference notice 169 India emissions notice 170 171 172 South Africa telecommunications notice 173 Power consumption 174 Lexmark International, Inc., Lexington, KY 175 Limitation of liability 176 IndexNumerics 177 Html 178 179 180 181