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Brother MFC-L2750DW - User Manual

Brother MFC-L2750DW
340 pages
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August 2017
SM-FAX186
8C5K*
Ver.4
Brother Laser MFC
SERVICE MANUAL
DCP-7090/7095D/7190DN/7195DW
DCP-B7500D/B7520DW/B7530DN/B7535DW
DCP-L2510D/L2511D/L2512D/L2530DW
DCP-L2531DW/L2532DW/L2535D/L2535DW
DCP-L2536D/L2537DW/L2550DN/L2550DW
DCP-L2551DN/L2551DW/L2552DN
HL-L2390DW/L2395DW
MFC-7390/7490D/7890DN/7895DW
MFC-B7700D/B7715DW/B7720DN
MFC-L2690DW/L2710DN/L2710DW/L2712DN
MFC-L2712DW/L2713DW/L2715D/L2715DW
MFC-L2716D/L2716DW/L2717DW
MFC-L2730DW/L2732DW/L2750DW/L2750DWXL
MFC-L2751DW/L2752DW/L2770DW/L2771DW
MODEL

Table of Contents

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Brother MFC-L2750DW Specifications

General IconGeneral
N-up printing4, 9, 16
Print technologyLaser
Maximum resolution1200 x 1200 DPI
Booklet printing functionYes
Print speed (black, normal quality, A4/US Letter)34 ppm
Copier resize25 - 400 %
Maximum copy resolution600 x 600 DPI
Maximum number of copies99 copies
N-in-1 copy function (N=)2, 4
Copy speed (black, normal quality, A4)34 cpm
Scan toE-mail, FTP, Image, OCR
Scan driversTWAIN, WIA
Scanner typeFlatbed & ADF scanner
Grayscale levels256
Output color depth8 bit
Image formats supportedJPG
Maximum scan resolution19200 x 19200 DPI
Document formats supportedPDF
FaxingMono faxing
Fax memory500 pages
Modem speed33.6 Kbit/s
Internal memory256 MB
Processor frequency600 MHz
Card reader integrated-
Sound pressure level (printing)49 dB
DisplayLCD
Control typeTouch
Product colorBlack
Display diagonal2.7 \
Market positioningHome & office
Standard interfacesEthernet, USB 2.0, Wireless LAN
USB 2.0 ports quantity1
Maximum duty cycle15000 pages per month
Recommended duty cycle0 - 2000 pages per month
Page description languagesBR-Script 3, PCL 6, PDF 1.7
Total input capacity250 sheets
Total output capacity120 sheets
Auto document feeder (ADF) input capacity50 sheets
Custom media width76.2 - 215.9 mm
Custom media length127 - 355.6 mm
Duplex media weight60 - 105 g/m²
Paper tray media typesEnvelopes, Labels, Plain paper, Recycled paper
Paper tray media weight60 - 230 g/m²
Non-ISO print media sizesExecutive
ISO A-series sizes (A0...A9)A4, A5, A6
Maximum ISO A-series paper sizeA4
Multi-Purpose Tray media weight60 - 163 g/m²
Wi-Fi standards802.11b, 802.11g, Wi-Fi 4 (802.11n)
Cabling technology10/100Base-T(X)
Security algorithmsSMTP-AUTH, SNMPv3, SSL/TLS
Ethernet LAN data rates10, 100 Mbit/s
Mobile printing technologiesBrother iPrint & Scan
Supported network protocols (IPv4)IPV4: ARP, RARP, BOOTP, DHCP, APIPA(Auto IP), WINS/NetBIOS name resolution, DNS Resolver, mDNS, LLMNR responder, LPR/LPD, Custom Raw Port/Port9100, SMTP Client, IPP/IPPS, FTP Client and Server, CIFS Client, SNMPv1/v2c/v3, HTTP/HTTPS server, TFTP client and server, ICMP, SNTP Client, Web Services (Print/Scan)
Supported network protocols (IPv6)IPV6: NDP, RA, DNS resolver, mDNS, LLMNR responder, LPR/LPD, Custom Raw Port/Port9100, IPP/IPPS, SMTP Client, FTP Client and Server, CIFS Client, SNMPv1/v2c/v3, HTTP/HTTPS server, TFTP client and server, ICMPv6, Web Services (Print/Scan), SNTP Client
Mac operating systems supportedMac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Server operating systems supportedWindows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
Windows operating systems supportedWindows 10, Windows 7, Windows 8, Windows 8.1
Power consumption (off)0.03 W
Power consumption (ready)42 W
Power consumption (sleep)0.6 W
Power consumption (PowerSave)1.1 W
Power consumption (average operating)440 W
Energy Star Typical Electricity Consumption (TEC)1.348 kWh/week
Package depth517 mm
Package width580 mm
Package height434 mm
Package weight14900 g
Sustainability certificatesNordic Swan Ecolabel, ENERGY STAR
CertificationGS mark
Harmonized System (HS) code84433100
Weight and Dimensions IconWeight and Dimensions
Depth398.5 mm
Width410 mm
Height318.5 mm
Weight12200 g

Summary

CHAPTER 2 ERROR INDICATIONS AND TROUBLESHOOTING

3. ERROR INDICATIONS

Lists error codes, descriptions, and reference pages for troubleshooting.

3.1 Error Codes

Lists error codes, descriptions, and reference pages for troubleshooting.

3.2 Error Message

Lists error messages displayed on the machine's LCD.

3.2.1 LCD models

Lists error messages displayed on LCDs for LCD model machines.

3.2.2 Touch panel models

Lists error messages displayed on LCDs for touch panel model machines.

4. TROUBLESHOOTING

Provides solutions for various machine problems.

4.1 Error Cause and Remedy

Provides step-by-step solutions for specific error codes.

4.2 Troubleshooting for Paper Feeding Problems

Guides on resolving issues related to paper feeding from various trays.

4.3 Troubleshooting for Image Defects

Identifies and provides solutions for various print quality image defects.

4.4 Troubleshooting for Software Problems

Addresses issues related to software, drivers, and computer connectivity.

4.5 Troubleshooting for Network Problems

Solutions for network connectivity and access point issues.

4.6 Troubleshooting for Control Panel Problems

Troubleshooting steps for issues with the LCD, LEDs, and panel operation.

4.7 Troubleshooting for Toner Cartridge and Drum Unit Problems

Resolves issues related to toner cartridge and drum unit detection and replacement messages.

4.8 Troubleshooting for Fuser Unit Problems

Diagnoses and resolves failures related to the fuser unit.

4.9 Troubleshooting for Laser Unit Problems

Provides steps to troubleshoot laser unit failures.

4.10 Troubleshooting for PCB Problems

Addresses issues related to the main PCB and memory.

4.11 Troubleshooting for Document Feeding Problems

Resolves problems encountered during document feeding in the ADF.

4.12 Troubleshooting for Scanning Image Defect

Guides on identifying and fixing various image defects during scanning.

4.13 Troubleshooting for FAX;Phone Problems

Provides solutions for fax transmission, reception, and communication errors.

4.14 Troubleshooting for Other Problems

Covers miscellaneous issues like printing, firmware updates, and paper tray recognition.

CHAPTER 3 DISASSEMBLY;REASSEMBLY

1. SAFETY PRECAUTIONS

Essential safety guidelines and warnings before performing disassembly.

9. DISASSEMBLY PROCEDURE

Step-by-step instructions for disassembling and removing machine parts.

9.18 Fuser unit

Procedure for removing the fuser unit.

9.19 Low-voltage power supply PCB ASSY

Instructions for removing the low-voltage power supply PCB assembly.

9.24 Laser unit flat cable; Laser unit

Steps for removing the laser unit and its flat cable.

9.28 Main PCB ASSY

Procedure for removing the main PCB assembly.

9.31 Paper feed motor; Paper feed motor flat cable

Procedure for removing the paper feed motor and its flat cable.

CHAPTER 4 ADJUSTING AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT

1. IF YOU REPLACE THE MAIN PCB ASSY

Steps for post-replacement procedures for the main PCB.

1.1 Installing Firmware (Sub firmware and main firmware)

Instructions for checking and installing machine firmware.

1.1.1 Checking firmware version

Guide to verify the current firmware version.

1.1.2 Installing firmware

Detailed steps for installing firmware via USB.

1.3 Setting by Spec, Setting Serial Number and Entering Adjusted Value of Laser Unit

Procedure for setting specifications, serial number, and laser unit values.

2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY

Steps for post-replacement procedures for the low-voltage power supply PCB.

3. IF YOU REPLACE THE LASER UNIT

Steps for post-replacement procedures for the laser unit.

3.1 Entering Adjusted Value of Laser Unit

Procedure for entering the adjusted value for the laser unit.

4. IF YOU REPLACE THE PANEL UNIT OR PANEL CONTROL PCB

Steps for post-replacement procedures for the panel unit or control PCB.

5.1 Acquiring White Level Data (Function code 55)

How to acquire white level data for CIS units.

CHAPTER 5 SERVICE FUNCTIONS

1. FUNCTION CODE

Introduction to service functions accessible via function codes.

1.1 How to Enter Maintenance Mode

Instructions to access the machine's maintenance mode.

1.1.1 Method of entering maintenance mode for service personnel

Steps for service personnel to enter maintenance mode.

1.2 List of Maintenance Mode Functions

A comprehensive list of available maintenance mode functions and their references.

1.3 Details of Maintenance Mode Functions

Detailed explanations of various maintenance mode functions.

APPENDIX 3 INSTALLING THE MAINTENANCE PRINTER DRIVER

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