Brother MFC-L8650CDW Service Manual

2-1
Confidential
CHAPTER 2 ERROR INDICATION AND
TROUBLESHOOTING
1. INTRODUCTION
Troubleshooting is the countermeasure procedures that the service personnel should follow if
an error or malfunction occurs with the machine. It is impossible to anticipate all of the possible
troubles which may occur in future and determine the troubleshooting procedures, so this
chapter covers some sample troubles. However, those samples will help the service personnel
pinpoint and repair other defective elements.
1.1 Precautions
Be sure to observe and follow all the precautions to prevent any secondary problems from
happening during troubleshooting.
(1) Always turn off the power and unplug the power cable before removing any covers or
PCBs, adjusting the machine and so on. If you need to take voltage measurements with
the power switched on, take the greatest of care not to receive an electric shock.
(2) When connecting or disconnecting cable connectors, make sure that you hold the
connector body and not the cables.
(3) Static electricity charged in your body may damage electronic parts. Before handling the
PCBs, touch a metal portion of the machine to discharge static electricity charged in your
body. When transporting PCBs, be sure to wrap them in conductive sheets.
When replacing the PCBs, put on a grounding wrist band and perform the job on a
antistatic mat. Also take care not to touch the conductor sections on the flat cables.
(4) Follow the warning by all means.
WARNING
Hazard labels as shown below are attached to the machine. Fully understand the
descriptions on the hazard labels and observe them during troubleshooting.
Take extreme care not to remove or damage the hazard labels.

Brother MFC-L8650CDW Specifications

General

Print technology	Laser
Maximum resolution	2400 x 600 DPI
Economical printing	Yes
Time to first page (black, normal)	15 s
Print speed (black, normal quality, A4/US Letter)	28 ppm
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
Time to first copy (black, normal)	18 s
Time to first copy (color, normal)	20 s
Scan to	Cloud, E-mail, E-mail Server, File, FTP, Image, OCR, USB
Scan drivers	ICA, ISIS, TWAIN, WIA
Scanner type	ADF scanner
Grayscale levels	256
Input color depth	48 bit
Maximum scan area	A4 (210 x 297) mm
Output color depth	24 bit
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
Faxing	Color faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax coding methods	JBIG, MH, MMR (Fax coding method), MR
Fax speed dialing (max numbers)	300
PCL fonts	66
Digital sender	-
Printing colors	Black, Cyan, Magenta, Yellow
Maximum duty cycle	- pages per month
Number of print cartridges	4
Page description languages	BR-Script 3, PCL 6
Email protocols	APOP, IMAP4, POP3, SMTP
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Cabling technology	10/100Base-T(X)
Security algorithms	128-bit WEP, 64-bit WEP, 802.1x RADIUS, EAP-FAST, EAP-TLS, EAP-TTLS, HTTPS, MD5, PEAP, SSL/TLS, WPA-AES, WPA-PSK, WPA-TKIP, WPA2-AES, WPA2-PSK, WPS
Ethernet LAN data rates	10, 100 Mbit/s
Online services supported	OneDrive, Box, Dropbox, Evernote, Facebook, Flickr, Google Drive, Picasa
Mobile printing technologies	Apple AirPrint, Brother iPrint & Scan, Google Cloud Print
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, POP3, IPP/IPPS, FTP Client and Server, CIFS Client, TELNET Server, SNMPv1/v2c/v3, HTTP/HTTPS server, TFTP client and server, SMTP Client, ICMPv6, SNTP Client, Web Services (Print/Scan), LDAP, IMAP4
Memory slots	1
Processor family	Star Sapphire
Maximum internal memory	512 MB
Sound power level (standby)	28 dB
Sound pressure level (printing)	55 dB
Sound pressure level (quiet mode)	52 dB
Paper input type	Paper tray
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	35 sheets
Custom media width	76.2 - 215.9 mm
Custom media length	127 - 355.6 mm
Paper tray media types	Bond paper, Envelopes, Glossy paper, Labels, Plain paper, Recycled paper, Thick paper, Thin paper
Paper tray media weight	60 - 105 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
JIS B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Display	TFT
Control type	Touch
Product color	Black, Grey
Display diagonal	3.6 \
Market positioning	Business
Standard interfaces	Ethernet, USB 1.1, 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.
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (off)	0.04 W
Power consumption (ready)	65 W
Power consumption (average operating)	565 W
Mac operating systems supported	Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Server operating systems supported	Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64, Windows Server 2012, Windows Server 2012 R2
Windows operating systems supported	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
Bundled software	Brother Control Center 4\\r Nuance PaperPort 12 SE\\r Brother Control Center 2
Sustainability certificates	Nordic Swan Ecolabel, Blue Angel, ENERGY STAR
Storage temperature (T-T)	0 - 40 °C
Operating temperature (T-T)	10 - 32 °C
Storage relative humidity (H-H)	20 - 80 %
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Depth	503 mm
Width	410 mm
Height	492 mm