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kenneth04Sep 4, 2025
What does a red icon mean on Brother MFC-L6900DW All in One Printer status monitor?
- TTina DelgadoSep 4, 2025
A red icon on the Brother All in One Printer status monitor indicates that an error has occurred.
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What does a red icon mean on Brother MFC-L6900DW All in One Printer status monitor?
A red icon on the Brother All in One Printer status monitor indicates that an error has occurred.
What does a yellow icon mean on Brother MFC-L6900DW status monitor?
A yellow icon on the Brother All in One Printer status monitor indicates a warning.
What does a green icon mean on Brother MFC-L6900DW All in One Printer status monitor?
A green icon on the Brother All in One Printer status monitor indicates the normal stand-by condition of your Brother All in One Printer.
How to troubleshoot 'Cartridge Error' on Brother All in One Printer?
If you encounter a 'Cartridge Error' on your Brother All in One Printer, the toner cartridge may not be installed correctly. Remove the toner cartridge and drum unit assembly. Take out the toner cartridge, and put it back in the drum unit again. Reinstall the toner cartridge and drum unit assembly in the machine.
Why does my Brother All in One Printer say 'Cover is Open'?
If your Brother All in One Printer indicates 'Cover is Open', the front cover is not completely closed. Open and then firmly close the front cover of the machine.
General| N-up printing | 2, 4, 9, 16, 25 |
|---|---|
| Secure printing | Yes |
| Print technology | Laser |
| Maximum resolution | 1200 x 1200 DPI |
| Duplex printing mode | Auto/Manual |
| Time to first page (black, normal) | 7.5 s |
| Print speed (black, normal quality, A4/US Letter) | 50 ppm |
| Scan to | E-mail, E-mail Server, FTP, File, Image, OCR, USB |
| Scan drivers | ICA, ISIS, SANE, TWAIN, WIA |
| Scanner type | Flatbed & ADF scanner |
| Grayscale levels | 256 |
| Input color depth | 48 bit |
| Maximum scan area | A4 (210 x 297) mm |
| Output color depth | 24 bit |
| Scan speed (black) | 24 inch/min |
| Scan speed (color) | 20 inch/min |
| Image formats supported | JPG |
| Maximum scan resolution | 19200 x 19200 DPI |
| Duplex scan speed (black) | 17 ppm |
| Document formats supported | |
| Copier resize | 25 - 400 % |
| Maximum copy resolution | 1200 x 600 DPI |
| Maximum number of copies | 99 copies |
| N-in-1 copy function (N=) | 2, 4 |
| Time to first copy (black, normal) | 9.5 s |
| Copy speed (black, normal quality, A4) | 50 cpm |
| Faxing | Mono faxing |
| Modem speed | 33.6 Kbit/s |
| Digital sender | No |
| Printing colors | Black |
| Maximum duty cycle | 150000 pages per month |
| Recommended duty cycle | 0 - 10000 pages per month |
| Number of print cartridges | 1 |
| Page description languages | BR-Script 3, Epson FX, IBM ProPrinter, Microsoft XPS, PCL 6, PDF 1.7 |
| Display | LCD |
| Control type | Touch |
| Product color | White |
| Display diagonal | 4.8 \ |
| Market positioning | Business |
| Email protocols | SMTP |
| Wi-Fi standards | 802.11b, 802.11g, Wi-Fi 4 (802.11n) |
| Cabling technology | 10/100/1000Base-T(X) |
| Security algorithms | 64-bit WEP, 128-bit WEP, 802.1x RADIUS, EAP-FAST, EAP-MD5, EAP-PEAP, EAP-TLS, EAP-TTLS, HTTPS, IPPS, IPSEC, LEAP, PEAP, SMTP-AUTH, SNMP, SSL/TLS, WPA-PSK, WPA2-PSK |
| Ethernet LAN data rates | 10, 100, 1000 Mbit/s |
| Online services supported | Box, Dropbox, Evernote, Facebook, Flickr, Google Drive, OneDrive, OneNote, Picasa |
| Mobile printing technologies | Apple AirPrint, Brother iPrint & Scan, Google Cloud Print, Mopria Print Service |
| Supported network protocols (IPv4) | ARP, RARP, BOOTP, DHCP, APIPA(Auto IP), WINS/NetBIOS name resolution, DNS Resolver, mDNS, LLMNR responder, LPR/LPD, Custom Raw Port/Port9100, POP3, SMTP Client, IPP/IPPS, FTP Client and Server, CIFS Client, TELNET Server, SNMPv1/v2c/v3, HTTP/HTTPS server, TFTP client and server, ICMP, Web Services (Print/Scan), SNTP Client, LDAP, IMAP4 |
| Supported network protocols (IPv6) | NDP, RA, DNS resolver, mDNS, LLMNR responder, LPR/LPD, Custom Raw Port/Port9100, IPP/IPPS, POP3*, SMTP Client, FTP Client and Server, CIFS Client, TELNET Server, SNMPv1/v2c, HTTP/HTTPS server, TFTP client and server, ICMPv6, SNTP Client, LDAP, Web Services (Print/Scan), IMAP4 |
| Processor family | ARM Cortex |
| Sound power level (standby) | 35 dB |
| Sound pressure level (copying) | 57 dB |
| Sound pressure level (quiet mode) | 53 dB |
| Mac operating systems supported | Mac OS X 10.0 Cheetah, Mac OS X 10.1 Puma, Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.2 Jaguar, Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks |
| Mobile operating systems supported | Windows Phone, Windows RT |
| Server operating systems supported | Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2 |
| Windows operating systems supported | Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 Pro, Windows 10 Pro x64, Windows 2000, Windows 2000 Professional, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64 |
| Standard interfaces | Ethernet, NFC, USB 2.0, Wireless LAN |
| USB 2.0 ports quantity | USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them. |
| Package depth | 526 mm |
| Package width | 599 mm |
| Package height | 762 mm |
| Package weight | 23800 g |
| Power consumption (off) | 1.6 W |
| Power consumption (sleep) | 8 W |
| Power consumption (standby) | 34 W |
| Power consumption (PowerSave) | 390 W |
| Power consumption (average operating) | 805 W |
| Energy Star Typical Electricity Consumption (TEC) | 2.493 kWh/week |
| Sustainability certificates | Nordic Swan Ecolabel, Blue Angel, ENERGY STAR |
| Custom media width | 76.2 - 215.9 mm |
| Custom media length | 127 - 355.6 mm |
| Paper tray media types | Plain paper, Recycled paper, Thick paper, Thin paper |
| Paper tray media weight | 60 - 120 g/m² |
| Non-ISO print media sizes | Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size) |
| ISO A-series sizes (A0...A9) | A4, A5, A6 |
| Multi-purpose tray media types | Bond paper, Envelopes, Labels, Letterhead, Plain paper, Recycled paper, Thick paper, Thicker paper, Thin paper |
| Maximum ISO A-series paper size | A4 |
| Multi-Purpose Tray media weight | 60 - 200 g/m² |
| Auto Document Feeder (ADF) media weight | 64 - 90 g/m² |
| Paper input type | Paper tray |
| Total input capacity | 520 sheets |
| Total output capacity | 250 sheets |
| Certification | GS Mark |
| Harmonized System (HS) code | 84433100 |
Weight and Dimensions| Depth | 427 mm |
|---|---|
| Width | 495 mm |
| Height | 518 mm |
Comparative table of functions and specifications for various Brother Laser MFC models.
Details on wired and wireless network types and node types for Brother MFC models.
Key service metrics like machine life, part life, MTBF, MTTR, and maintenance part lifecycles.
Details on toner cartridge yields and drum unit life expectancy under various conditions.
Specifications for paper input, weight, and size supported by the ADF.
Details on modem speed, transmission speed, and ITU-T group for fax functions.
Specifications for copy speed, first copy out time, print resolution, and duplex scanning.
Specifications for scanner resolution and scanning speed for ADF and single/duplex modes.
Overview of troubleshooting procedures and general precautions for service personnel.
Essential safety precautions to prevent secondary problems during maintenance.
Checks for operating environment, power supply, paper, and consumables before repairs.
Comprehensive list of error codes, their descriptions, and references for troubleshooting.
Guidance for common error messages displayed on the LCD and their solutions.
Step-by-step solutions for various paper feeding issues like no feed, multiple feeds, jams.
Guide to identifying and resolving common image defects like light print or streaks.
Procedures for resolving issues related to fax transmission and reception errors.
Solutions for common issues like inability to print, update firmware, or USB interface errors.
Essential safety warnings and precautions for performing disassembly and reassembly.
Identification of screws and their specified torque values for assembly.
Details on lubrication points, types of oil, and quantity for specific gears and clutches.
Diagrams and lists illustrating the gears used in the machine for disassembly.
Illustrations showing the routing of various harnesses for ADF, scanner, and PCB connections.
Flowcharts detailing the sequence for disassembling and reassembling machine components.
Step-by-step instructions for disassembling the Lower Tray (LT) unit components.
Procedures and required items for after replacing the main PCB ASSY.
Steps for checking and installing firmware via USB flash memory or PC.
Procedure for adjusting the touch panel calibration using function code 61.
Steps to initialize the EEPROM of the Main PCB ASSY using function code 01.
Procedure to configure country, region, and model settings using function code 74.
Steps to activate memory writing, necessary for serial number and laser unit adjustments.
Instructions for setting the serial number and entering laser unit adjusted values.
Procedure to acquire white level data for scanner calibration using function code 55.
Adjusting left-end and upper-end print positions (TT only) using function code 45.
Procedure to reset the machine to its original factory default settings.
Details on how to enter maintenance mode for service personnel and end-users.
A comprehensive list of available maintenance mode functions with corresponding function codes.
Function to initialize EEPROM settings for operation parameters and worker switches.
Test function to evaluate the performance of the automatic document feeder (ADF).
Function to print test patterns for checking image quality and missing elements.
Procedure to set various worker switches (WSW) for function customization.
Function to print the current worker switch settings and their details.
Procedure to check the normal operation of the LCD display through various screens.
Function to verify the operational status of individual keys on the control panel.
Function to save network configuration data to a USB flash memory.
Displays firmware and program version information, including check sum details.
Enables or disables the Demo printing function for sales promotions.
Verifies the operation of sensors, solenoids, and clutches by simulating input changes.
Checks the connection status of the wired LAN interface.
Allows changing various print function settings like resolution, media type, and margins.
Adjusts left-end and upper-end print positions, and sets HEXDUMP Mode.
Adjusts horizontal/vertical printing positions for different speed levels.
Customizes machine settings for language, function, and firmware based on country.
Transfers received fax data, communication logs, or machine logs to another machine.
Adjusts the scanning start/end positions for ADF and document scanner units.
Acquires white level data and sets CIS scan area for scanner calibration.
Conducts paper feed and eject tests by printing various patterns.
Prints test patterns to check for develop roller or exposure drum damage.
Customizes machine settings for language, function, and worker switches by spec code.
Prints information on consumables, replacements, and counters.
Checks main fan operation by controlling rotation speed (100%, 50%, OFF).
Deletes fax data stored in the machine's memory.
Displays various machine logs, including error logs, serial numbers, and page counts.
Sends error lists to remote service personnel for fax communication problem analysis.
Resets counters for consumable parts like laser, fuser, and PF kits after replacement.
Exits maintenance mode, restarts the machine, and closes fuser unit errors.
Overall wiring diagram showing connections for the main machine components.
Wiring diagram specific to the Lower Tray (LT) unit, showing PCB and connector connections.
Wiring diagram for the Tower Tray (TT) unit, detailing MCU and sensor connections.
Essential safety warnings and precautions for performing periodical maintenance tasks.
Lists parts that require periodical replacement and their corresponding disassembly procedures.
Step-by-step instructions for disassembling and replacing the fuser unit.
Step-by-step instructions for disassembling and replacing the laser unit.
Procedures for disassembling and replacing PF kits (MP, 1, 2/3/4/5).
