The Brother MFC-9420CN is a color multifunction center featuring laser printing, copying, scanning, and faxing capabilities. It offers network connectivity, automatic document feeder, flatbed scanner, PC-FAX functionality, and supports various media types. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.
Key components: Color laser engine, Automatic Document Feeder (ADF), Flatbed scanner, Control panel with LCD, Network interface, Phone line connectors, Paper trays.
| Feature | Description |
|---|---|
| Print Speed | Up to 20 ppm black, 4 ppm color |
| Print Resolution | Up to 600 x 600 dpi |
| Copy Resolution | Up to 600 x 600 dpi |
| Scan Resolution | Up to 600 x 1200 dpi |
| Fax Modem Speed | 33.6 kbps |
| Paper Capacity | 250 sheets standard |
| ADF Capacity | Up to 35 sheets |
| Interfaces | USB 2.0, Ethernet 10/100Base-TX |
| Memory | 32 MB standard |
| Supported OS | Windows, Mac OS |
Unpack and inspect contents. Place on stable, level surface near power outlet.
WARNING! Toner cartridges are heavy; handle with care. Ensure unit is unplugged during installation.
Power on device; follow on-screen prompts on LCD display.
CAUTION! Do not turn off power during initial setup or calibration.
Control Panel: LCD display, Navigation buttons, Start/Stop, Numeric keypad, Speed dial buttons, Function keys.
Main Functions: COPY, FAX, SCAN, MENU
Copy Settings: Number of copies, Darkness, Reduce/Enlarge, Paper select, 2-sided copying. Fax Settings: Resolution (Standard/Fine/Super Fine), Redial, Fax/Tel switch, ECM mode. Scan Settings: Resolution, File format (PDF, JPEG, TIFF), Destination (PC, Email, Network). System Settings: Network configuration, Security settings, Reports printing, Maintenance functions.
Computer: USB or Ethernet network. Telephone: Standard phone line to LINE port. Additional phone: Connect to EXT port for handset.
Tip: Use shielded cables for best performance and interference reduction.
Supports various paper types and sizes.
WARNING! Do not touch the fuser unit inside the printer; it becomes hot during operation.
Scanning: Place document in ADF or on glass, select scan function, choose destination and format. Faxing: Program speed dials, send fax using numeric keypad or from computer.
Unplug before cleaning. Use dry, lint-free cloth for exterior. Clean interior with approved materials only.
CAUTION! Do not use alcohol, ammonia, or abrasive cleaners on plastic surfaces.
FCC Part 15: Class B digital device; complies with interference limits for residential use. Energy Star® compliant. Copyright © Brother Industries, Ltd. For support, visit www.brother.com or contact Brother Customer Service at 1-877-267-8437. All trademarks referenced are property of their respective owners.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No power | Power cord/outlet | Check power connections; try different outlet; ensure power switch is on. |
| Paper jams | Paper loading/rollers | Clear jammed paper following guide in manual; check paper condition. |
| Poor print quality | Toner/roller/drum | Replace low toner; clean corona wire; run cleaning cycle. |
| Not printing from computer | Driver/connection | Check cable connections; reinstall driver; verify printer is selected. |
| Fax not sending/receiving | Phone line/ settings | Check phone line connection; verify fax settings; test with known working line. |
| Scanner not working | Software/connection | Reinstall scanning software; check USB/network connection. |
| Error messages on display | Various issues | Refer to error code in manual; perform recommended reset procedure. |
Reset: Menu > Initial Setup > Reset Settings to return to factory defaults.
Service: 1-877-267-8437; www.brother.com