Adjusting operator panel brightness and contrast | Lexmark C780

6 Administrative support

Adjusting operator panel brightness and contrast

The LCD operator panel contrast and brightness can be adjusted through the Utilities menu. For more information, see the Menus and Messages Guide.

The LCD Brightness and LCD Contrast settings are adjusted separately. To change the LCD Brightness or LCD Contrast settings:

1Make sure your printer is on.

2Press on the operator panel.

3Press until Settings appears, and then press .

4Press until Utilities Menu appears, and then press .

5Press until appears next to the LCD setting you want to change, and then press .

6Press to increase the brightness or contrast, or press to decrease the brightness or contrast.

7When the adjustment is complete, press .

This saves this setting as the new user default and the printer returns to Ready.

Disabling operator panel menus

Since many people could be using the printer, an administrator may choose to lock the operator panel menus to keep others from changing menu settings from the operator panel.

To disable the operator panel menus so that changes cannot be made to the printer default settings:

1Turn the printer off.

Note: Disabling the operator panel menus does not prevent access to Print and Hold functionality.

2Press and hold and while turning the printer on.

3Release both buttons when Performing Self Test appears on the display.

The printer performs its power-on sequence, and then Config Menu appears on the first line of the display.

4Press until Panel Menus appears, and then press .

5Press until Disable appears, and then press .

The following messages appear briefly: Submitting Selection and Disabling Menus. The operator panel returns to Panel Menus.

6Press until Exit Config Menus appears, and then press . Activating Menu Changes appears. The menus are disabled.

Resetting the Printer appears briefly followed by a clock. The operator panel then returns to Ready.

Administrative support

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Lexmark C780, C782 manual Adjusting operator panel brightness and contrast, Disabling operator panel menus

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 Canceling a job from a Macintosh computer Printing a menu settingsPrinting a network setup 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 Printing and deleting held jobs Linking output binsHolding a job in the printer Value Description Macintosh Printing confidential jobsWindows Print Time Filters At the printer Entering a personal identification number PINEnter PIN Repeat Print Verify PrintReserve 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 Media guidelines Paper characteristicsWeight Paper Media specifications Unacceptable paper Media specifications Selecting paper Storing paperSelecting preprinted forms and letterhead Envelopes Media specifications Printing on letterheadTransparencies 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 Maximum 2,3Grain long Labels- 2,4 Vinyl labels Media capacitiesPaper labels Envelopes Status / Supplies Determining the status of suppliesReady. Tray 1 Low, Tray View supplies Y K Ordering supplies Print cartridges Supply Menu selection item What the setting doesConserving supplies Maintaining the printer Ordering a fuser Toner waste containerFuser and ITU 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 Message Check Areas What to do Understanding jam messagesPaper jam messages 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 Using the secure Embedded Web Server Setting security using the Embedded Web Server EWSSetting the system password Click Configuration Using Secure mode Click TCP/IP Port AccessSupporting IPSec Internet Protocol Security Click Menu Lockout Setup Using 802.1x AuthenticatingClick 802.1x Authentication Locking the operator panel menus Click Confidential Print Setup Black only modeConfidential Print Setup Printing Lockout Using the Coverage Estimator Size sensingDisabling size sensing Using MarkVision Professional Configuring printer alertsUsing the Setup Menu Using MarkVision Messenger Checking an unresponsive printer Online customer support Calling for serviceSymptom Cause Solution 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 See Loading the trays or Loading Solving paper feed problemsSolving print quality problems Paper path Multiple times on a Top to Bottom or Left to RightMarks occur repeatedly only in one color Marks occur down the page repeatedly in all To be replaced Cartridges BCD E What is RGB color? Solving color quality problemsFrequently asked questions FAQ about color printing 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 German GS mark notice Noise emission levelsHinweis zum GS-Zeichen Durchschnittlicher Schallpegel dBA in 1 m Umkrei Product energy consumption Power SaverMode Description Power 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