Brother MFC-9125CN Manual

The Brother MFC-9125CN is a multifunction color laser printer featuring printing, scanning, copying, and faxing capabilities. It offers network connectivity, a flatbed scanner, automatic document feeder (ADF), and supports various paper sizes and types. Key features include high-speed printing, PC-FAX functionality, and robust security options. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Color laser engine, flatbed scanner, automatic document feeder (ADF), control panel with LCD, paper trays, network interface, and USB port.

Installation

Unpack and inspect contents. Place on a stable, level surface near a power outlet and computer/network.

1. Remove all packaging materials and tapes from inside and outside the machine.
2. Install the toner cartridges: Open front cover, remove protective materials, insert black, cyan, magenta, and yellow cartridges until they click.
3. Load paper: Adjust paper guides in the tray, load plain paper (up to 250 sheets).
4. Connect power cord to the machine and plug into a grounded outlet.
5. Connect to computer: Use USB cable for direct connection or Ethernet cable for network.

WARNING! Toner cartridges are sensitive; handle with care. Avoid touching the green drum surface.

First-Time Setup

Power on the machine; follow on-screen prompts on the LCD display.

1. Initial startup: The machine will perform self-tests and calibration (may take several minutes).
2. Install drivers: Insert the supplied software CD or download latest drivers from Brother website.
3. Configure network (if applicable): Use the control panel to set IP address or use automatic DHCP.
4. Set date/time and fax settings (if using fax).
5. Print a test page to verify installation.

CAUTION! Do not turn off the machine during initial setup or firmware updates.

Specifications

• Type: Color Laser Multifunction (Print, Scan, Copy, Fax).
• Print Technology: Laser electrophotography.
• Print Speed: Up to 21 ppm (black and color).
• First Print Out Time: Less than 13 seconds (black).
• Scanner Resolution: Up to 1200 x 1200 dpi (optical).
• Fax Transmission Speed: Approx. 3 seconds per page (Super G3).
• Memory: 64 MB standard (expandable).
• Operating Systems: Windows, macOS, Linux.
• Power Consumption: Approx. 480W (printing), 65W (ready), 8W (sleep).
• Dimensions (W x D x H): 18.7" x 19.1" x 18.5".
• Weight: Approx. 62.4 lbs.

Controls and Settings

Access functions via the control panel LCD and buttons.

Control Panel: POWER, START (for copy/fax), STOP/EXIT, numeric keypad, navigation arrows, OK, MENU, BACK, FAX, COPY, SCAN.

Menu Settings:
Printer: Paper size, type, density, toner save mode.
Scanner: Resolution, file format, destination.
Fax: Speed dial, redial, header information.
System: Network configuration, security, language (default ENGLISH), reset.
Reports: Print configuration, fax journal, error log.

Connecting Devices

USB: Connect directly to a computer. Network: Connect via Ethernet to a router/switch.

1. Turn off the machine before connecting cables.
2. For USB: Use standard USB 2.0 cable (Type B to Type A).
3. For Network: Use CAT5e or higher Ethernet cable to router.
4. Power on the machine and computer; install drivers as prompted.
5. Verify connection by printing a network configuration report.

Tip: For wireless, an optional wireless print server can be installed.

Printing & Copying

Supports standard and custom print jobs, multiple copy sets.

1. Printing from computer: Select Brother printer driver, adjust settings (color, duplex, quality).
2. Copying: Place original on scanner glass or in ADF, press COPY, select number of copies, color mode, and press START.
3. Advanced copy features: Zoom (25-400%), fit to page, photo copy, ID card copy.
4. Duplex printing/copying: Automatic for supported paper (via driver or machine settings).
5. Toner save mode: Enable in printer properties to reduce toner consumption.

WARNING! Do not touch the fuser unit inside; it is hot during and after operation.

Scanning & Faxing

Scan to computer, email, or network folder. Send/receive faxes.

Scanning:
1. Place document.
2. Press SCAN button or use computer software.
3. Select scan mode (color, grayscale, B&W), resolution, format (PDF, JPEG).
4. Choose destination (PC, email, USB).
Faxing:
1. Load document in ADF or on glass.
2. Dial number using keypad or speed dial.
3. Press START to send.
4. Receive faxes automatically; store in memory if paper runs out.

PC-FAX: Send faxes directly from computer using installed driver.

Maintenance & Cleaning

Unplug machine before cleaning exterior. Use dry, lint-free cloth; for stubborn stains, dampen cloth with water only.

1. Clean exterior: Wipe casing with dry cloth.
2. Clean scanner glass: Use soft cloth and glass cleaner (do not spray directly).
3. Clean corona wire: Access via front door; slide green tab left and right several times if print quality issues occur.
4. Replace toner: When low toner message appears, open front cover and replace cartridge.
5. Replace drum unit (if applicable): When message appears, replace entire drum unit.

CAUTION! Do not use alcohol, ammonia, or abrasive cleaners. Allow machine to cool before cleaning internal parts.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Energy Star® qualified. Copyright © Brother Industries, Ltd. For support, visit www.brother.com or contact Brother Customer Service at 1-877-276-8437.

Troubleshooting

Reset: Menu > System > Reset to factory defaults if needed (backup settings first).

Service: 1-877-276-8437; www.brother.com