Brother MFC-L6700DW Service Manual

iii
Confidential
4.13.3 Communication error occurs .............................................................................. 2-123
4.14 Troubleshooting for Other Problems ............................................................................... 2-124
4.14.1 Cannot print ........................................................................................................ 2-124
4.14.2 Cannot update firmware ..................................................................................... 2-124
4.14.3 USB direct interface errors ................................................................................. 2-124
4.14.4 "Paper Low" message does not disappear ......................................................... 2-125
CHAPTER 3 DISASSEMBLY/REASSEMBLY
1. SAFETY PRECAUTIONS ............................................................................................................ 3-1
2. PACKING .................................................................................................................................... 3-2
3. SCREW CATALOGUE ................................................................................................................ 3-3
4. SCREW TORQUE LIST .............................................................................................................. 3-4
5. LUBRICATION ............................................................................................................................ 3-7
6. OVERVIEW OF GEARS .............................................................................................................. 3-9
7. HARNESS ROUTING ................................................................................................................ 3-11
8. DISASSEMBLY FLOW CHART ................................................................................................ 3-24
8.1 Machine ............................................................................................................................ 3-24
8.2 LT ..................................................................................................................................... 3-26
9. DISASSEMBLY PROCEDURE ................................................................................................. 3-27
9.1 Preparation ....................................................................................................................... 3-27
9.2 Paper tray ......................................................................................................................... 3-28
9.3 Back cover / Outer chute .................................................................................................. 3-30
9.4 Fuser cover ....................................................................................................................... 3-31
9.5 Fuser unit .......................................................................................................................... 3-32
9.6 MP cover ASSY ................................................................................................................ 3-35
9.7 Front cover ASSY ............................................................................................................. 3-37
9.8 Side cover L ...................................................................................................................... 3-38
9.9 Side cover R ..................................................................................................................... 3-39
9.10 ADF/document scanner unit ............................................................................................. 3-40
9.11 ADF unit ............................................................................................................................ 3-43
9.11.1 ADF unit ............................................................................................................... 3-43
9.11.2 Hinge L ASSY, Hinge R, Hinge R support, Hinge arm R ..................................... 3-45
9.11.3 ADF cover ASSY, Document stopper .................................................................. 3-46
9.11.4 Gear cover, ADF front cover, Document sub tray ................................................ 3-47
9.11.5 Document separate roller ASSY .......................................................................... 3-49
9.11.6 ADF separation holder ASSY ............................................................................... 3-50
9.11.7 Second side CIS unit, Second side CIS flat cable
(Models with duplex printing only) ........................................................................ 3-51
9.12 Panel unit .......................................................................................................................... 3-56
9.12.1 Panel unit ............................................................................................................. 3-56

Brother MFC-L6700DW Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	7.5 s
Print speed (black, normal quality, A4/US Letter)	48 ppm
Digital sender	-
Maximum duty cycle	100000 pages per month
Recommended duty cycle	0 - 5000 pages per month
Page description languages	BR-Script 3, Epson FX, IBM ProPrinter, PCL 6, PDF 1.7
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
N-in-1 copy function (N=)	2, 4
Copy speed (black, normal quality, A4)	48 cpm
Scan to	E-mail, FTP, File, Image, OCR, USB
Scan drivers	ICA, ISIS, SANE, TWAIN, WIA
Scanner type	Flatbed & ADF scanner
Scan speed (black)	28 ppm
Scan speed (color)	20 ppm
Image formats supported	BMP, JPG, PNG, TIF
Maximum scan resolution	19200 x 19200 DPI
Duplex scan speed (black)	56 ppm
Duplex scan speed (color)	34 ppm
Document formats supported	DOCX, PDF, PPTX, XML, XPS
Email protocols	APOP, IMAP4, POP3
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, APOP, EAP-FAST, SMTP-AUTH, SSL/TLS, WPA-PSK, WPA2-PSK
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Online services supported	Dropbox, Evernote, Google Drive, OneDrive
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
Faxing	Mono faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax transmission speed	2.5 sec/page
Total input capacity	520 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	70 sheets
Envelopes sizes	6 3/4, 7 3/4, 9, 10
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Recycled paper
ISO A-series sizes (A0...A9)	A4, A5, A6
Duplex media weight (imperial)	17 - 24 lbs
Multi-purpose tray media types	Bond paper
Maximum ISO A-series paper size	A4
Paper tray media weight (imperial)	16 - 32 lbs
Multi-Purpose Tray media weight (imperial)	16 - 53 lbs
Display	LCD
Control type	Touch
Product color	Black
Display diagonal	4.85 \
Market positioning	Business
Internal memory	512 MB
Sound power level (standby)	35 dB
Sound pressure level (printing)	55 dB
Sustainability certificates	ENERGY STAR
AC input voltage	120 V
AC input frequency	50 - 60 Hz
Power consumption (ready)	36 W
Power consumption (sleep)	1.8 W
Power consumption (average operating)	680 W
Operating relative humidity (H-H)	20 - 80 %
Package depth	525.78 mm
Package width	599.44 mm
Package height	657.86 mm
Package weight	22089.95 g

Weight and Dimensions

Width	495.3 mm