Lexmark C77x manual Solving copy quality problems, Solving scan quality problems, Troubleshooting

Page 100

Troubleshooting

Solving copy quality problems

The following solutions will help solve copy problems. For additional information, see Copy tips.

Symptom

Solution

Unwanted background is visible.

Adjust the Background Removal setting under Copy Æ Options Æ Advanced

 

Imaging. Touch the right arrow to remove more background.

 

 

Unwanted patterns (Moire)

Change the content mode to Printed Image under Copy Æ Options Æ Content.

appear when a document is

 

copied using Photograph mode.

 

 

 

Vertical or horizontal lines are

Clean the ADF scanner glass and backing material. See Cleaning the scanner glass

noticed on copied pages.

and backing material on page 80.

 

 

Black text is too light or

• Adjust the Darkness setting under the Copy menu. Touch the right arrow to

disappearing.

increase the darkness setting.

 

• Change the content mode to Text under Copy Æ Options Æ Content.

 

• Adjust the Background Removal setting under Copy Æ Options Æ Advanced

 

Imaging. Touch the left arrow to remove less background.

 

• Adjust the Contrast setting under Copy Æ Options Æ Advanced Imaging. Touch

 

the right arrow to add more contrast.

 

• Adjust the Shadow Detail setting under Copy Æ Options Æ Advanced Imaging.

 

Touch the left arrow to decrease shadow detail.

 

 

The copy looks washed out or

• Adjust the Background Removal setting under Copy Æ Options Æ Advanced

overexposed.

Imaging. Touch the left arrow to remove less background.

 

• Adjust the Shadow Detail setting under Copy Æ Options Æ Advanced Imaging.

 

Touch the left arrow to remove more shadow detail.

 

 

Solving scan quality problems

The following solutions will help solve scan problems. For additional information, see Scanning tips.

Symptom

Solution

The file size is too big when I

• Touch Options, then under Resolution, decrease the output resolution.

scan a document to the network.

• Touch Options, then under Content, change the Color option to black and white.

 

• Touch Options, then under Content, change the setting to Text.

 

 

Text characters do not look sharp

• Touch Options, then under Resolution, increase the output resolution.

when I scan a document to the

• Touch Options, then under Content, change the setting to Text.

network.

 

 

 

Black text is too light or

• Adjust the Darkness setting. Touch the right arrow to increase the darkness setting.

disappearing.

• Change the content mode to Text.

 

• Adjust the Background Removal setting under Advanced Imaging. Touch the left

 

arrow to remove less background.

 

• Adjust the Contrast setting under Advanced Imaging. Touch the right arrow to add

 

more contrast.

 

• Adjust the Shadow Detail setting under Advanced Imaging. Touch the left arrow to

 

decrease shadow detail.

 

 

Unwanted background is visible.

Adjust the Background Removal setting under Advanced Imaging. Touch the right

 

arrow to remove more background.

 

 

Solving copy quality problems

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Contents MFP Option United States Government Rights Static sensitivity notice Contents Contents Understanding paper and specialty media guidelines Index 111 Learning about the MFP Basic functions of the scannerAutomatic document feeder and flatbed Understanding the MFP control panelCallout Control panel item Function Learning about the MFPStatus Indicates With fax functions Home screen and Home screen buttons CopyFax Mail Callout number Button FunctionFTP Button Button name FunctionJobs CancelArrow buttons, see Information on touch-screen buttons Sample screen one Information on touch-screen buttons Using the LCD touch-screen buttonsButton Button name Function or description Scan SubmitScan Submit Flatbed BackSample screen two Down arrowSee Cancel Jobs on Cancel JobOther touch-screen buttons ContinueDone Screen buttons on page 11 for more informationFeatures Feature Feature name DescriptionPaper Menu Reports Network/Ports Settings MenusHelp Manage ShortcutsQuick copy CopyingMultiple page copying Understanding the copy screens and options Using the flatbedCopying Understanding the copy screens and options Copying from one size to another Making transparenciesCopying to letterhead Copying photographsMaking copies using media from a selected tray Copying mixed-sized mediaTouch Photograph Touch Scan Next or DoneAdjusting copy quality Setting the duplex optionReducing and enlarging copies Setting collation options Setting paper saving optionsPlacing separator sheets between copies Touch Separator SheetsPlacing the date and time at the top of each Placing an overlay message on eachCreating a custom job job build Touch Date/Time StampCanceling a copy job While copying pages using the flatbedCopy tips While the document is in the ADFUsing a shortcut number MailEntering an e-mail address Touch E-mail ItUsing the address book Mailing to a profileAdding e-mail subject and message information MailClick E-mail Destination Setup Changing the output file typeMailing color documents Creating an e-mail shortcutCanceling an e-mail Creating an e-mail profileUnderstanding e-mail options From the MFPUnderstanding e-mail options Mail server setup Address book setupFaxing Sending a faxSending faxes from a computer Using fax destination shortcutsFaxing Click Fax Shortcut Setup Creating shortcutsUnderstanding fax options Changing the fax resolution Adjusting the Darkness settingTouch Advanced Options Touch Delayed Send Sending a fax at a later timeViewing a fax log Cancel an outgoing faxFax tips FTP Entering the FTP addressClick FTP Shortcut Setup FTP optionsFTP options FTP tips Create a scan to PC profile Scanning to a PC or USB flash memory deviceClick Scan Profile Click Create Scan Profile Understanding scan to PC options Scanning to a PC or USB flash memory deviceSolving scan quality problems Scanning to a USB flash memory deviceScanning tips Touch Scan to USB drivePrinting Printing from a USB flash memory deviceCanceling a print job PrintingCanceling a job from a computer running Windows Canceling a job from the MFP control panelCanceling a job from a Macintosh computer Printing the menu settings Printing a network setupPrinting a font sample list Printing a directory listPrinting confidential and held jobs Printing a confidential jobPrinting and deleting held jobs Entering a personal identification number PINPrinting Printing on specialty media Loading standard trays and optional trays Loading 500-sheet traysPrinting Loading the 2000-sheet tray Printing Loading the multipurpose feeder Linking trays Understanding paper and specialty media 8 guidelines Print media sizes Print media types Print media weightsSupported print media Dimensions Understanding paper and specialty media guidelinesPaper Optional Finisher Standard Offset StapleGlossy papers Maximum Grain long2,3Grain short2,3 Transparencies2Selecting print media Paper characteristicsPaper Fiber content TransparenciesUnacceptable paper Grain directionEnvelopes Labels Card stockAvoiding jams Storing print mediaAutomatic document feeder Printer Installing and removing options Accessing the printer system boardInstalling a memory card Installing and removing optionsInstalling a firmware card Installing the interface card Replacing the access cover plate Maintaining the MFP Storing suppliesPage Recycling Lexmark products Cleaning the scanner glass and backing materialMaintaining the MFP Cleaning the automatic document feeder Scanner registration Touch Exit Configuration MenuTouch Automatic Scanner Registration Removing the scanner top Moving the MFP within the office Moving the MFPPreparing the MFP for shipment Identifying jams Clearing jamsCopy Fax Mail Printer access doors and trays Clearing jamsUnderstanding printer jam messages Message Check Areas What to doClearing scanner jams 290, 291, 292, and 294 Scanner JamsAdministrative support Adjusting control panel brightnessRestoring factory default settings Touch Settings Touch General SettingsAdjusting Power Saver Adjusting screen timeoutAdministrative support Setting Password Protect for the menus Configuring the MFPRestricting Function Access Preventing access to the menus from the control panel Locking the MFP using the Device Lockout PINUnlocking the MFP using the Device Lockout PIN Disabling the Driver to Fax menu itemSetting a password before printing received faxes Setting security using the Embedded Web Server EWSSetting the Advanced Password Select Always On for Held Fax ModeUsing the secure EWS Disabling SNMPv1 and SNMPv2Supporting IPSec Internet Protocol Security Click TCP/IP Port AccessDisabling ports and protocols Using 802.1x authentication Confidential Print SetupClick 802.1x Authentication Click Confidential Print SetupTouch Exit Config Menu to exit Encrypting the hard diskUsing the Restricted Server List function Hard disk wipingTroubleshooting Understanding MFP messagesOnline technical support Checking an unresponsive MFP Locating the port name and IP addressSolving copy quality problems Solving scan quality problemsTroubleshooting Symptom SolutionSolving fax problems Solving paper feed problemsSymptom Cause Solution See Ordering an ADF pick roller for more informationConventions Electronic emission notices PartIndustry Canada compliance statement Avis de conformité aux normes de l’industrie du CanadaEuropean Community EC directives conformity 103Radio interference notice MaltiR31306 Bsmi EMC noticePart Other telecommunications notices South Africa telecommunications noticeUsing this product in Germany Using this product in SwitzerlandNoise emission levels Mailing addressPower regulation notice Meter average sound pressure, dBAChina RoHS Part Name Hazardous Substances or ElementsIndex Index 113 114
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