Lexmark C736DN Service Manual

The Lexmark C736DN is a high-performance color laser printer designed for small to medium-sized businesses. It offers fast printing speeds, high-quality color output, and a range of features including duplex printing, network connectivity, and advanced security options. 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: Color laser printing technology, duplex printing, Ethernet and USB connectivity, LCD display, and multiple paper handling options.

Feature	Description
Duplex Printing	Automatic double-sided printing to save paper
Network Connectivity	Ethernet and USB options for easy integration
Print Speed	Up to 35 pages per minute for black and color
Print Resolution	Up to 1200 x 1200 dpi for sharp text and images
LCD Display	User-friendly interface for easy navigation
Paper Capacity	Standard tray holds up to 250 sheets
Memory	Standard 256 MB RAM, expandable for larger workloads
Energy Star Certified	Energy-efficient design to reduce power consumption

Installation

Unpack and inspect contents. Place the printer on a stable surface.

Connect power cord: Plug into a suitable outlet.
Connect to network: Use Ethernet cable for network connection.
Load paper: Adjust the paper guides and load the tray.
Install toner cartridges: Follow instructions in the manual.

WARNING! Printer is heavy; lift with care to avoid injury. Ensure all connections are secure.

First-Time Setup

Power on the printer; follow on-screen prompts.

Configure network settings: Use the LCD display to select network options.
Set language: Choose the preferred language from the menu.
Adjust print quality: Access settings to optimize print quality.
Test print: Print a test page to confirm setup.

CAUTION! Ensure stable surface; use two people for handling if necessary.

Specifications

Print Technology: Color Laser.
Print Speed: Up to 35 ppm (black and color).
Print Resolution: 1200 x 1200 dpi.
Connectivity: USB 2.0, Ethernet 10/100Base-T.
Memory: 256 MB RAM (expandable).
Paper Handling: 250-sheet input tray, 100-sheet output bin.
Operating System Compatibility: Windows, macOS, Linux.
Power Consumption: Energy Star compliant.

Controls and Settings

Access printer settings via the LCD display. Use buttons for navigation and selection.

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

Settings: Print quality, paper type, network settings, and maintenance options.

Connecting Devices

Connect to a computer or network using USB or Ethernet.

Turn off the printer and devices before connecting.
Match cables to ports (e.g., USB to computer).
Select input via printer settings if necessary.

Tip: Ensure printer is off and unplugged before connecting cables.

Printing Documents

Supports various document types including text and images.

Send print job: Select printer from your computer's print dialog.
Adjust settings: Modify print quality and paper type as needed.
Monitor print status: Check the LCD display for job status.
Cancel print job: Use the Cancel button on the printer.

WARNING! Do not remove paper during printing; wait for the job to complete.

Accessibility Features

Accessibility options include large print settings and audio prompts for navigation.

Care & Cleaning

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

CAUTION! Do not use liquids or aerosols; keep away from heat and moisture.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 2026 Lexmark; trademarks of Lexmark International, Inc. 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.
Print quality issues	Toner or settings	Check toner levels and adjust print settings.
Paper jams	Obstruction in paper path	Clear paper path and reload paper.
Network issues	Connection problem	Verify network settings and connections.
Slow printing	High print quality settings	Adjust print quality to a lower setting.

Reset: Menu > System > Reset if available.

Service: Contact Lexmark support for assistance.