Brother MFC-L6700DW Service Manual

2-55
Confidential
 Error code 7402
When printing from the paper tray 2, the registration front sensor or the T2TT jam sensor
does not detect paper pass within the specified time after the T2(LT or TT) paper feed sensor
detected paper pass.
<User Check>
• Remove the jammed paper.
• Add the paper properly using the paper tray 2 paper guide.
• Install the latest main firmware.
Step Cause Remedy
1
Foreign object in the front of the
machine
Remove the foreign object.
2
Registration front actuator
attachment failure
Reattach the registration front actuator.
3
T2TT jam sensor attachment
failure
Reattach the T2TT jam sensor.
4
Connection failure of the
registration front/rear sensor
harness
Reconnect the registration front/rear sensor
harness.
5
Connection failure of the T2TT
jam sensor harness
Reconnect the T2TT jam sensor harness.
6
Connection failure of the TT
control PCB harness
Reconnect the TT control PCB harness.
7
Connection failure of the T2LT
control PCB harness
Reconnect the T2LT control PCB harness.
8
Connection failure of the T2LT
release clutch harness
Reconnect the T2LT release clutch harness.
9 T2LT release clutch failure Replace the T2LT release clutch.
10
Registration front/rear sensor
PCB failure
Replace the registration front/rear sensor PCB
ASSY.
11 T2TT jam sensor PCB failure Replace the T2TT jam sensor PCB ASSY.
12 TT control PCB failure Replace the TT control PCB ASSY.
13 T2LT control PCB failure Replace the T2LT control PCB ASSY.
14
high-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
15
Damaged gears in the paper
feeding system
Replace the main frame L ASSY.
16
Damaged gears in the LT paper
feeding system
Replace the LT.
17
Damaged gears in the TT paper
feeding system
Replace the TT.
18 Main PCB failure Replace the main PCB ASSY.

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