Brother DCP-L5650DN Service Manual

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Confidential
4.8 Troubleshooting for Fuser Unit Problems
4.8.1 Fuser unit failure
4.9 Troubleshooting for Laser Unit Problems
4.9.1 Laser unit failure
Step Cause Remedy
1
Connection failure of the center
thermistor harness
Reconnect the center thermistor harness.
2
Connection failure of the side
thermistor harness
Reconnect the side thermistor harness.
3
Connection failure of the heater
harness
Reconnect the heater harness.
4
Connection failure of the eject
sensor harness
Reconnect the eject sensor harness.
5 Eject sensor PCB failure Replace the eject sensor PCB ASSY.
6
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
7 Fuser unit failure Replace the fuser unit.
8 Main PCB failure Replace the main PCB ASSY.
Note:
• Turn the power switch OFF and then ON again. Leave the machine for 15 minutes.
This problem may then be cleared.
• The machine may recover from the error, when the test printing of the maintenance
mode for service personnel is started. However, conducting this operation while the
heater has not yet cooled may cause the fuser unit to melt. Be careful.
<User Check>
• Turn ON the power switch, then open the front cover and the back cover. Leave the
machine for a while to remove condensation.
Step Cause Remedy
1
Ground plate contact failure Retighten the screws to secure the laser unit
ground plate.
2 Laser unit attachment failure Reattach the laser unit.
3
Connection failure of the laser unit
flat cable
Reconnect the laser unit flat cable.
4 Laser unit failure Replace the laser unit.
5 Main PCB failure Replace the main PCB ASSY.

Brother DCP-L5650DN Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	7.2 s
Print speed (black, normal quality, A4/US Letter)	42 ppm
Copier resize	25 - 400 %
Maximum copy resolution	- DPI
N-in-1 copy function (N=)	2, 4
Copy speed (black, normal quality, A4)	42 cpm
Scan to	Cloud, E-mail, E-mail Server, FTP, File, Image, OCR, USB
Scanner type	Flatbed 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, TXT, XML, XPS
Display	LCD
Control type	Touch
Product color	Black
Display diagonal	3.7 \
Market positioning	Business
Card reader integrated	No
Sound power level (standby)	35 dB
Sound pressure level (printing)	55 dB
Digital sender	-
Maximum duty cycle	50000 pages per month
Recommended duty cycle	0 - 3500 pages per month
Page description languages	BR-Script 3, Epson FX, IBM ProPrinter, PCL 6, PDF 1.7
Security algorithms	802.1x RADIUS, EAP-FAST, EAP-MD5, EAP-TLS, HTTPS, IPPS, PEAP, SMTP-AUTH, SNMP, SSL/TLS
Online services supported	Dropbox, Evernote, Facebook, Flickr, Google Drive, OneDrive, OneNote, Picasa
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, 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
Supported network protocols (IPv6)	NDP, RA, DNS resolver, mDNS, LLMNR responder, LPR/LPD, Custom Raw Port/Port9100, IPP/IPPS, 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)
Total input capacity	250 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, Recycled paper
Non-ISO print media sizes	Executive
ISO A-series sizes (A0...A9)	A4, A5, A6
Multi-purpose tray media types	Envelopes, Letterhead
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight (imperial)	16 - 53 lbs
Standard interfaces	Ethernet, USB 2.0
USB 2.0 ports quantity	1
Power consumption (off)	0.03 W
Power consumption (ready)	36 W
Power consumption (sleep)	8.4 W
Power consumption (average operating)	630 W
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	20 - 80 %
Package depth	525.78 mm
Package width	599.44 mm
Package height	629.92 mm
Package weight	20638.453 g

Weight and Dimensions

Depth	426.72 mm
Width	495.3 mm
Height	485.14 mm