Lexmark T644 Printer Manual

The Lexmark T644 is a high-performance monochrome laser printer designed for medium to large workgroups. It offers fast printing speeds, high-quality output, and a variety of features to enhance productivity. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Printing Documents 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: High-speed printing, automatic duplexing, large paper capacity, network connectivity options, and advanced security features.

Feature	Description
Print Speed	Up to 45 pages per minute
Print Resolution	1200 x 1200 dpi
Duplex Printing	Automatic double-sided printing
Paper Capacity	Standard 250-sheet input tray, optional 550-sheet trays
Connectivity	USB, Ethernet, and optional wireless
Security Features	Secure printing and user authentication

Installation

Unpack the printer and place it on a stable surface. Follow the steps below for installation.

Connect the power cord and plug it into an electrical outlet.
Connect the USB or Ethernet cable to your computer or network.
Load paper into the input tray.
Turn on the printer and install the toner cartridge.

WARNING! Ensure the printer is placed on a flat surface to avoid tipping.

First-Time Setup

Power on the printer and follow the on-screen prompts to complete the setup.

Select your language and region.
Configure network settings if applicable.
Print a test page to confirm installation.

CAUTION! Do not connect the USB cable until prompted by the installation software.

Specifications

Print Technology: Monochrome laser.
Print Speed: Up to 45 ppm.
Print Resolution: 1200 x 1200 dpi.
Memory: 256 MB standard, expandable to 512 MB.
Connectivity: USB 2.0, Ethernet, optional wireless.
Paper Handling: 250-sheet input tray, optional 550-sheet trays.
Operating System Compatibility: Windows, Mac OS, Linux.
Power Consumption: 550 watts (maximum).

Controls and Settings

Access the printer settings via the control panel. Use the buttons to navigate through the menu options for configuration.

Control Panel: Power, Cancel, Menu, and Navigation buttons.

Settings: Adjust print quality, paper size, and network settings through the menu.

Connecting Devices

Connect the printer to your computer or network using the appropriate cable.

Ensure the printer is powered off before connecting.
Use a USB cable for direct connection or Ethernet for network connection.
Turn on the printer and install the necessary drivers on your computer.

Tip: Always use the latest drivers from the Lexmark website for optimal performance.

Printing Documents

To print documents, select the printer from your computer's print dialog.

Open the document you wish to print.
Select 'Print' from the File menu.
Choose the Lexmark T644 from the list of printers.
Adjust settings as needed and click 'Print'.

WARNING! Ensure the printer has enough paper and toner before printing.

Accessibility Features

The Lexmark T644 includes features to assist users with disabilities, including voice prompts and adjustable control panel settings.

Care & Cleaning

Unplug the printer before cleaning. Use a soft, dry cloth to clean the exterior.

CAUTION! Do not use liquids or aerosols on the printer.

Regulatory Information

This printer complies with FCC regulations and is certified for safety and electromagnetic compatibility. For support, visit www.lexmark.com or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Printer not responding	Power or connection issue	Check power supply and cable connections.
Poor print quality	Low toner or dirty components	Replace toner cartridge and clean the printer.
Paper jams	Incorrect paper loading	Remove jammed paper and reload correctly.
Network issues	Connection problems	Check network settings and cables.

Reset: Refer to the user manual for reset instructions.

Service: 1-800-555-0199; www.lexmark.com