Bcd E | Lexmark C780, C782 instruction

Troubleshooting

Symptom	Cause	Solution
Gray background	• The Toner Darkness setting is	• Select a different Toner Darkness setting from the
	too dark.	printer driver before sending the job to print.

• The print cartridges are	• Replace the print cartridge that corresponds to
defective.	the color displayed on the control panel.
ABCDE
ABCDE
ABCDE

Uneven print density	• The print cartridges are	• Replace the print cartridge that corresponds to
	defective.	the color displayed on the control panel.

	• The transfer roller is worn or	• Replace the transfer roller.
ABCDE	defective.	• Replace the image transfer unit.
	• The image transfer unit is worn
	or defective.
ABCDE
ABCDE

Ghost Images						Toner level is low in the print	Replace the print cartridge that corresponds to the
						cartridges.	color displayed on the control panel.

Clipped images	Guides in the selected tray are set	Move the guides in the tray to the proper positions
(Some of the print is cut	for a different size paper than	for the size loaded.
(Some of the print is cut	what is loaded in the tray.
off on the sides, top, or	what is loaded in the tray.
off on the sides, top, or
bottom of the paper.)

Incorrect margins	• Guides in the selected tray are	• Move the guides in the tray to the proper positions
	set for a different size paper	for the size loaded.
	than what is loaded in the tray.	• Set the Paper Size to match the media in the tray.

•Auto size sensing is set to off, but you loaded a different size paper in a tray. For example, you inserted A4 size paper into the selected tray but did not set the Paper Size to A4.

	Skewed print	• Guides in the selected tray are	• Move the guides in the tray to the proper positions
	(Print is inappropriately	not in the correct position for	for the size loaded.
	(Print is inappropriately	the paper size loaded in the	• See the Card Stock & Label Guide available on
	slanted.)	the paper size loaded in the	• See the Card Stock & Label Guide available on
	slanted.)	tray.	the Lexmark Web site at www.lexmark.com for
		tray.	the Lexmark Web site at www.lexmark.com for
		• You are using paper that does	detailed specifications.
		not meet the printer	• For more information, see Media specifications.
		specifications.
	Blank pages	The print cartridges are defective	Replace the print cartridge that corresponds to the
		or empty.	color displayed on the control panel.

Solving print quality problems

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Image 96

Lexmark C780, C782 manual Bcd E

Contents

C780, C782 Safety information Edition OctoberTrademarks Contents Contents Installing and removing options Input options Output options Internal options Installing a 2000-sheet drawer Installing and removing options Continue with Installing a 500-sheet drawer Installing a 500-sheet drawer Installing a duplex unit Installing the printer Installing an output expander Installing and removing options Installing a 5-bin mailbox Installing and removing options Installing a StapleSmart finisher Installing memory and option cardsRemoving the system board access cover Installing a memory card Installing an option-added firmware card Installing a hard disk Installing and removing options Installing an option card Card Function Accessing the printer system board Removing memory and option cards Removing memory cards Removing an option card Removing a hard disk Installing and removing options Reinstalling the system board access cover Removing an option-added firmware card Printing Understanding the printer operator panel Status Indicates Sending a job to print PrintingButton Function Printing from a USB flash memory device Canceling a print job Canceling a job from the printer operator panelCanceling a job from a computer running Windows Printing a menu settings Printing a network setupCanceling a job from a Macintosh computer Canceling a job from a Macintosh computer running Mac OS Printing a font sample list Printing a directory list Loading the trays Loading 500-sheet trays Printing Loading the 2000-sheet tray Printing Loading the multipurpose feeder Printing Printing on specialty media transparencies, labels, other WindowsLoading the trays Loading the multipurpose feeder Linking trays Mac OSSelect File Print Linking output bins Holding a job in the printerPrinting and deleting held jobs Value Description Printing confidential jobs WindowsMacintosh Print Time Filters At the printer Entering a personal identification number PINEnter PIN Verify Print Reserve PrintRepeat Print Copies & Pages or General pop-up menu, choose Job Routing At the printer Print All Delete All JobName1 JobName2 Tips for successful printing Storing paperStoring supplies Avoiding jams Paper characteristics WeightMedia guidelines Paper Media specifications Unacceptable paper Media specifications Selecting paper Storing paperSelecting preprinted forms and letterhead Media specifications Printing on letterhead TransparenciesEnvelopes Selecting transparencies Labels Storing media Card stock Identifying media sources and specifications DimensionsMedia sizes and support Media support by type for optional features Optional Finisher Standard Offset Staple Media types and weights input options Media types and weights output options Envelopes2 Maximum 2,3 Grain longMaximum Labels- 2,4 Media capacities Paper labelsVinyl labels Envelopes Determining the status of supplies Ready. Tray 1 Low, TrayStatus / Supplies View supplies Y K Supply Menu selection item What the setting does Conserving suppliesOrdering supplies Print cartridges Maintaining the printer Toner waste container Fuser and ITUOrdering a fuser Type of fuser Printer voltage Part number Recycling Lexmark products Ordering an image transfer unit and transfer rollerOrdering staple cartridges Clearing paper jams Identifying jams Access doors and trays Clearing paper jams Understanding jam messages Paper jam messagesMessage Check Areas What to do Expander jams Area M Clearing the entire paper path Area aArea B Area C Area D Area T1 Area EArea Tx Area J Area KArea L Clearing mailbox, finisher, or output expander jams Area M Clearing fuser jams Clearing fuser jams Clearing image transfer unit jams Clearing paper jams Clearing paper jams Clearing paper jams If you still need help Adjusting operator panel brightness and contrast Disabling operator panel menus Restoring factory default settings Administrative supportEnabling operator panel menus Adjusting Power Saver Encrypting the disk Setting security using the Embedded Web Server EWS Setting the system passwordUsing the secure Embedded Web Server Click Configuration Using Secure mode Click TCP/IP Port AccessSupporting IPSec Internet Protocol Security Using 802.1x Authenticating Click 802.1x AuthenticationClick Menu Lockout Setup Locking the operator panel menus Black only mode Confidential Print SetupClick Confidential Print Setup Printing Lockout Using the Coverage Estimator Size sensingDisabling size sensing Configuring printer alerts Using the Setup MenuUsing MarkVision Professional Using MarkVision Messenger Online customer support Calling for service Symptom Cause SolutionChecking an unresponsive printer Check the Print as image box Solving printing problems TroubleshootingSet Page Protect to Off from Print Recovery Solving mailbox problems For more informations, see Clearing mailbox, finisher, orOutput expander jams Area M Solving option problems See Solving high capacity feeder problemsOption Action Solving high capacity feeder problems Problem Solution Solving paper feed problems Solving print quality problemsSee Loading the trays or Loading Paper path Top to Bottom or Left to Right Marks occur repeatedly only in one colorMultiple times on a Marks occur down the page repeatedly in all To be replaced Cartridges BCD E Solving color quality problems Frequently asked questions FAQ about color printingWhat is RGB color? How does the printer know what color to print? What is Manual Color Correction? Is it possible to increase the gloss in the printed output? Cmyk What are Detailed Color Samples and how do I access them? Electronic emission notices Avis de conformité aux normes de l’industrie du CanadaEuropean Community EC directives conformity 102 Industry Canada compliance statement Noise emission levels Hinweis zum GS-ZeichenGerman GS mark notice Durchschnittlicher Schallpegel dBA in 1 m Umkrei Power Saver Mode Description Power consumptionProduct energy consumption Total energy usage 106 China RoHS Laser advisory labelPart Name Hazardous Substances or Elements Statement of Limited Warranty Laser notice 109 Index Index PIN 112