Brother MFC-L5900DW Service Manual

2-109
Confidential
4.5 Troubleshooting for Network Problems
4.5.1 Cannot print via network connection
4.5.2 Cannot connect to access point
4.6 Troubleshooting for Control Panel Problems
4.6.1 Nothing is displayed on the LCD
<User Check>
• Check the relevant section in the Network Setting Guide.
• Check the network connection.
• Reset the network. (Refer to the online User's Guide.)
• Check the LAN cable.
Step Cause Remedy
1 Wireless LAN PCB failure Replace the wireless LAN PCB.
2
Deformed LAN terminal pin
Main PCB failure
Replace the main PCB ASSY.
<User Check>
• Check the wireless LAN settings.
• Check the access point settings.
• Change the machine installation location.
• Set the access point manually.
Step Cause Remedy
1 Wireless LAN PCB failure Replace the wireless LAN PCB.
2 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Turn the power switch OFF and then ON again.
Step Cause Remedy
1
Connection failure of the panel flat
cable
Reconnect the panel flat cable.
2
Connection failure of the low-voltage
power supply harness
Reconnect the low-voltage power supply
harness.
3 AC cord failure Replace the AC cord.
4
LCD relay PCB failure
(For 3.7 inch models only)
Replace the LCD relay PCB ASSY.
(For 3.7 inch models only)
5 Panel flat cable failure Replace the panel flat cable.
6 LCD failure Replace the LCD.
7 Panel PCB failure Replace the LCD panel ASSY.
8
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
9 Main PCB failure Replace the main PCB ASSY.

Brother MFC-L5900DW Specifications

General

Secure printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Print speed (black, normal quality, A4/US Letter)	44 ppm
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)	42 cpm
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
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, SSL/TLS, WPA-PSK, WPA2-PSK
Ethernet LAN data rates	10, 100, 1000 Mbit/s
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
Direct printing	-
Standard interfaces	Ethernet, USB 2.0, Wireless LAN
USB 2.0 ports quantity	1
Internal memory	512 MB
Printing colors	Black
Maximum duty cycle	50000 pages per month
Recommended duty cycle	0 - 3500 pages per month
Page description languages	BR-Script 3, Epson FX, PCL 6, PDF 1.7
Faxing	Mono faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax coding methods	JBIG, JPEG, MH, MMR (Fax coding method), MR
Scan to	Cloud, FTP, File, Image, OCR, USB
Scanner type	Flatbed & ADF scanner
Input color depth	48 bit
Image formats supported	BMP, JPG, MMR, PNG, TIF
Maximum scan resolution	19200 x 19200 DPI
Document formats supported	DOCX, PDF, PPTX, XML, XPS
Envelopes sizes	6 3/4, 7 3/4, 9, 10
Paper tray media types	Bond paper, Labels, Plain paper, Recycled paper
ISO A-series sizes (A0...A9)	A4, A5, A6
Multi-purpose tray media types	Envelopes
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
Display diagonal	3.7 \
Market positioning	Business
AC input voltage	120 V
AC input frequency	50 - 60 Hz
Power consumption (ready)	36 W
Power consumption (sleep)	1.6 W
Power consumption (average operating)	630 W
Sustainability certificates	ENERGY STAR
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	20 - 80 %
Package depth	526 mm
Package width	599 mm
Package height	629 mm
Package weight	20900 g

Weight and Dimensions

Depth	427 mm
Width	495 mm
Height	486 mm