Lexmark 450dn manual Administrative support, Adjusting control panel brightness and contrast

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8 Administrative support

Adjusting control panel brightness and contrast

The LCD control 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 control 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 control panel menus

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

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

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

1Turn the printer off.

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 control 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 control panel then returns to Ready.

Administrative support

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Contents E450dn Edition June Contents Contents Learning about the printer Printer overviewBasic model Learning about the printer Configured model Paper Menu Reports Settings MenuUnderstanding the control panel Indicator light MenuStop Status IndicatesButton or control panel Function 6 NavigationButtons DisplaySource Sizes Types Weight Capacity* sheets Understanding print media guidelinesWhat types of print media can be loaded? Paper characteristics Tips on choosing the right print mediaPaper Understanding print media guidelinesUnacceptable paper Selecting paperTransparencies Selecting preprinted forms and letterheadPrinting on letterhead Media source or process Print side TopEnvelopes Selecting transparenciesLabels Card stockStoring print media Avoiding jamsLoading the 250-sheet tray on Loading the manual feeder on Printing Loading the 250-sheet trayPrinting Printing Extending the tray for legal or folio size paper Attaching the dust coverLoading the manual feeder Printing Linking trays Sending a job to printCanceling a print job Canceling a job from the printer control panelCanceling a job from a computer running Windows Canceling a job from the taskbarPrinting the menu settings Printing a network setupCanceling a job from a Macintosh computer Canceling a job from a Macintosh computer running Mac OSPrinting a font sample list Printing held jobsPrinting and deleting held jobs Copies & Pages or General pop-up menu, select Job Routing Print Time FiltersInstalling options Accessing the system boardInstalling options Installing options Access the system board see Accessing the system board on Adding a memory cardAdding a flash memory card Adding a flash memory card Installing an optional 550-sheet drawer Recognizing installed optionsClick Start Æ Settings Æ Printers Click File Æ Properties Click the Install Options tabMaintaining the printer Determining the status of suppliesPhotoconductor kit end-of-life Storing suppliesSupply Menu selection item What the setting does Conserving suppliesOrdering supplies Maintaining the printerOrdering a toner cartridge Part number Description Average cartridge yieldChanging a toner cartridge Ordering a photoconductor kit Changing a photoconductor kit Maintaining the printer Maintenance kit Machine voltage Part numbersRecycling Lexmark products Clearing jams Identifying jamsUnderstanding jam messages Message What to doClearing printer jams Clearing a jamClearing jams Clearing jams Clearing jams Clearing a jam in the manual feeder Clearing jams Troubleshooting Online customer support Calling for serviceChecking an unresponsive printer Solving printing problems TroubleshootingSymptom Cause Solution Check the Print as image boxSet Page Protect to Off from the Setup Menu Set the Operating Mode to NormalReduced Curl mode Finishing MenuTurning on Reduced Curl mode Solving option problemsOption Action Solving paper feed problems Problem SolutionOccurring, see Avoiding jams on See Storing print media on page 18 for moreSolving print quality problems Problem ActionMedia guidelines on page 12 for more details Http//support.lexmark.comTroubleshooting Part or all of the page is Menu selection Purpose Values Driver option Purpose Values†Administrative support Adjusting control panel brightness and contrastDisabling control panel menus Restoring factory default settings Administrative supportEnabling control panel menus Adjusting Power Saver Disabling Power SaverSelecting printer operating mode Setting security using the Embedded Web Server EWSSetting the system password Using the secure Embedded Web ServerClick Menu Lockout Setup Locking the control panel menusConventions Electronic emission notices Industry Canada compliance statementPower regulation notice Hot surface noticeNoise emission levels Waste from Electrical DirectiveStatement of Limited Warranty for Lexmark E450dn Laser noticeLimitation of liability Index Index Card Stock & Label Guide

450dn specifications

The Lexmark 450dn is a robust monochrome laser printer designed to meet the needs of small to medium-sized businesses, offering high-quality printing along with efficient performance. This reliable printer stands out due to its combination of advanced features, speed, and cost-effective operation.

One of the main characteristics of the Lexmark 450dn is its impressive print speed, capable of producing up to 40 pages per minute. This makes it an ideal option for busy work environments where time is of the essence. In addition, the printer has a first-page-out time of just 6.5 seconds, ensuring that users do not have to wait long for their documents.

The Lexmark 450dn employs advanced printing technologies, such as Lexmark’s Unison Toner. This technology ensures consistent and high-quality output from the first page to the last, with sharp text and detailed graphics. The printer also offers a print resolution of up to 1200 x 1200 dpi, ensuring clarity and precision in every document.

Another key feature of the 450dn is its duplex printing capability, which automatically prints on both sides of the paper. This function not only enhances productivity but also reduces paper usage, making it a more environmentally friendly choice for businesses looking to minimize their ecological footprint.

Connectivity is another area where the Lexmark 450dn excels. It offers multiple connectivity options, including USB, Ethernet, and built-in wireless capabilities. This flexibility allows multiple users within a network to easily access the printer, promoting collaborative work environments.

The printer is designed with a user-friendly interface, featuring a 2-line LCD display that provides essential information and makes operation simple. Furthermore, the Lexmark 450dn supports a variety of paper sizes and types, from standard letter-sized paper to envelopes and labels, accommodating diverse printing needs.

In terms of maintenance, the Lexmark 450dn is designed for easy access to consumables and parts, which promotes user convenience. Its long-lasting toner cartridges contribute to lower overall operating costs, making it an economical choice for higher-volume printing.

Overall, the Lexmark 450dn combines speed, efficiency, and versatility, making it a compelling choice for professionals seeking a dependable printing solution. With its advanced features and thoughtful design, it delivers outstanding performance for a wide range of business applications.
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