1. Introduction
The Lexmark CX510de is a network-ready color multifunction printer designed for efficient printing, copying, scanning, and faxing. It features a color touch screen for intuitive operation and offers fast print speeds of up to 32 pages per minute in both black and color. This manual provides essential information for setting up, operating, and maintaining your Lexmark CX510de printer.
Key features include:
- Quickly print, copy, and scan up to 32 pages per minute in black and color.
- Produce a 1-page color document in as little as 11.5 seconds.
- Professional color output for in-house on-demand printing.
- Lexmark Named Color Replacement and PANTONE calibration for accurate color matching.
2. Setup Guide
Follow these steps to set up your Lexmark CX510de multifunction printer:
- Unpacking: Carefully remove the printer from its packaging. Ensure all packing materials and protective tapes are removed.
- Placement: Place the printer on a stable, level surface with adequate ventilation.
- Connect Power: Connect the power cord to the printer and then to a grounded electrical outlet.
- Load Paper:
Open the paper tray located at the front of the printer. Adjust the paper guides to fit the paper size (e.g., 8.5 x 14 inches). Load up to 1451 sheets of plain paper or transparencies into the tray.

Image: Front view of the Lexmark CX510de printer with the paper tray extended, showing how to load paper.
- Install Toner Cartridges:
Open the access panel for the toner cartridges, typically on the side or front. Insert the Yellow, Cyan, Magenta, and Black toner cartridges into their respective slots. Ensure they click into place securely.

Image: Side view of the Lexmark CX510de printer with the toner cartridge access panel open, showing the four color toner cartridges (Yellow, Cyan, Magenta, Black) installed.
- Connect to Network/Computer:
Connect the printer to your network using an Ethernet cable for network printing, or directly to a computer using a USB cable. The printer supports Ethernet and USB connectivity.
- Install Drivers: Install the necessary printer drivers on your computer from the Lexmark website or the included installation disc (if applicable).
3. Operating Instructions
The Lexmark CX510de features an intuitive LCD color touch screen for easy navigation and operation. Use the touch screen and the numeric keypad to access various functions.

Image: Close-up of the Lexmark CX510de control panel, highlighting the color touch screen and numeric keypad.
3.1. Printing
- Ensure the printer is connected to your computer or network and drivers are installed.
- From your computer, select the print option in your application.
- Choose the Lexmark CX510de from the list of available printers.
- Adjust print settings (e.g., color/monochrome, duplex, paper size) as needed.
- Click "Print". The printer supports automatic duplex printing.
3.2. Copying
- Place your document face-down on the scanner glass or face-up in the Automatic Document Feeder (ADF).
- On the printer's touch screen, select the "Copy" function.
- Adjust copy settings such as number of copies, color/monochrome, and duplex options.
- Press the "Start" button to begin copying.
3.3. Scanning
- Place your document on the scanner glass or in the ADF.
- On the printer's touch screen, select the "Scan" function.
- Choose your desired scan destination (e.g., Scan to Computer, Scan to Email, Scan to Network Folder).
- Configure scan settings such as resolution, file type, and color mode.
- Press the "Start" button to initiate the scan.
3.4. Faxing
- Load the document you wish to fax into the ADF.
- On the printer's touch screen, select the "Fax" function.
- Enter the recipient's fax number using the numeric keypad.
- Adjust any necessary fax settings.
- Press the "Start" button to send the fax.
4. Maintenance
Regular maintenance ensures optimal performance and longevity of your Lexmark CX510de printer.
- Replacing Toner Cartridges:
When a toner cartridge is low or empty, the printer's display will indicate which cartridge needs replacement. Open the toner access panel, remove the old cartridge, and insert a new one until it clicks into place. Refer to the setup section for visual guidance on toner installation.
- Cleaning the Printer:
Periodically wipe the exterior of the printer with a soft, damp cloth. For the scanner glass, use a lint-free cloth and a mild glass cleaner. Avoid spraying cleaner directly onto the glass.
- Paper Tray Management:
Ensure paper trays are not overfilled. Use recommended paper types and sizes to prevent jams. The printer has 9 trays for various paper handling needs.
5. Troubleshooting
This section addresses common issues you might encounter with your Lexmark CX510de printer.
- Paper Jams:
If a paper jam occurs, the printer display will show instructions on how to clear it. Open the indicated access doors and carefully remove any jammed paper, ensuring no torn pieces remain inside. Close all doors securely.
- Print Quality Issues:
If prints are faded, streaky, or have incorrect colors, check toner levels and replace any low cartridges. Perform a print quality calibration from the printer's control panel if available. Ensure you are using appropriate paper for your print job.
- Scanner Issues (Non-Searchable PDFs):
The scanner produces bitmap PDF files by default. To create searchable PDFs, additional software on your computer may be required to perform Optical Character Recognition (OCR) after scanning. Consult your operating system's documentation or third-party OCR solutions.
- Connectivity Problems:
Ensure all cables (power, Ethernet, USB) are securely connected. Restart the printer and your computer/router. Verify network settings on the printer's control panel.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | CX510de |
| Printing Technology | Laser |
| Printer Output | Color |
| Max Print Speed (Monochrome) | 32 ppm |
| Max Print Speed (Color) | 30 ppm |
| Maximum Color Print Resolution | 600 x 600 dpi |
| Maximum Black and White Print Resolution | 1200 dpi |
| Max Copy Speed (Black & White) | 32 ppm |
| Max Copy Resolution (Color) | 1200 x 1200 dpi |
| Max Copy Resolution (Black & White) | 1200 dpi |
| Scanner Type | Automatic Document Feeder |
| Display Type | LCD (Color Touch Screen) |
| Control Method | Touch |
| Connectivity Technology | Ethernet, USB |
| Dual-sided printing (Duplex) | Automatic |
| Max Input Sheet Capacity | 1451 sheets |
| Sheet Size | Up to 8.5 x 14 Inches |
| Number of Trays | 9 |
| Memory Storage Capacity | 1024 MB |
| Power Consumption (On-mode) | 640 Watts |
| Item Weight | 72 pounds |
| Product Dimensions | 21.97 x 23.39 x 22.4 inches |
| Date First Available | October 16, 2012 |
7. Warranty Information
The Lexmark CX510de printer comes with a Limited Warranty. For specific terms and conditions of your warranty, please refer to the documentation included with your product or visit the official Lexmark support website.
8. Support
For further assistance, technical support, or to find additional resources for your Lexmark CX510de printer, please visit the official Lexmark support channels. You can also find more information and products on the Lexmark Store on Amazon.





