Brother MFC-L5700DW Service Manual

2-103
Confidential
 White spots
<Pitch appears in the image and rollers >
 Single-colored dot or dirt
<User Check>
• Check that the main fan is not clogged.
• Refer to < How to clean the drum unit> to remove the dirt from the
exposure drum using a cotton applicator.
• Replace the drum unit with a new one.
• Replace the toner cartridge with a new one.
Step Cause Remedy
1
Dirt on the paper dust cleaning
roller of the paper tray
Refer to the Fig. 2-10 to clean the paper
dust cleaning roller.
2 Clogged filter Clean the filter.
3 Scratch or dirt on the fuser unit Replace the fuser unit.
4
High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY.
Note:
• Image defects which appear periodically may be caused by failure of rollers. Refer to
the table below and determine the cause based on the diameter of the rollers or the
pitch at which defects appear on the image.
Part name
Pitch at which defects
appear in the image
Develop roller 45.5 mm
Exposure drum 94.2 mm
Heat film in the fuser unit 104 mm
Pressure roller in the fuser unit 94 mm
<User Check>
• Check that the paper is not damp.
• Refer to < How to clean the drum unit> to remove the dirt from the
exposure drum using a cotton applicator.
• Replace the drum unit with a new one.
• Replace the toner cartridge with a new one.
Step Cause Remedy
1
Dirt on the paper dust cleaning
roller of the paper tray
Refer to the Fig. 2-10 to clean the paper
dust cleaning roller.
2 Clogged filter Clean the filter.
3 Scratch or dirt on the fuser unit Replace the fuser unit.
4
High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY.
Note:
• Image defects which appear periodically may be caused by failure of rollers. Refer to
the table above and determine the cause based on the diameter of the rollers or the
pitch at which defects appear on the image.

Brother MFC-L5700DW Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Duplex printing mode	Auto
Time to first page (black, normal)	7.2 s
Print speed (black, normal quality, A4/US Letter)	42 ppm
Display	LCD
Control type	Touch
Product color	Black
Display diagonal	3.7 \
Market positioning	Business
Digital sender	No
Maximum duty cycle	50000 pages per month
Number of print cartridges	1
Page description languages	BR-Script 3, Epson FX, IBM ProPrinter, PCL 5c, PCL 5e, PCL 6, PDF 1.3
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
Maximum number of copies	999 copies
N-in-1 copy function (N=)	2, 4
Time to first copy (black, normal)	9.2 s
Copy speed (black, normal quality, A4)	42 cpm
Scan to	CIFS, Cloud, E-mail, E-mail Server, FTP, File, OCR, USB
Scan drivers	ICA, ISIS, SANE, TWAIN, WIA
Scanner type	Flatbed & ADF scanner
Input color depth	48 bit
Output color depth	24 bit
Input grayscale depth	16 bit
Output grayscale depth	8 bit
Image formats supported	JPEG, JPG, PNG, TIF, TIFF
Maximum scan resolution	19200 x 19200 DPI
Document formats supported	DOCX, HTM, HTML, PDF, PPTX, RTF, TXT, XLS, XLSX, XML, XPS
Faxing	Mono faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	300
Cables included	Phone
Bundled software	Nuance PaperPort SE with OCR for Windows, Presto! PageManager with OCR for Mac
Included cartridge capacity (black)	2000 pages
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	64-bit WEP, 128-bit WEP, WPA-PSK, WPA2-PSK
Ethernet LAN data rates	10, 100 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/Port 9100, 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
Paper input type	Paper tray
Total input capacity	250 sheets
Total output capacity	150 sheets
Auto document feeder (ADF) input capacity	50 sheets
Paper tray media types	Bond paper, Envelopes, Labels, Letterhead, Plain paper, Recycled paper
Paper tray media weight	60 - 120 g/m²
ISO A-series sizes (A0...A9)	A4, A5, A6
Multi-purpose tray media types	Envelopes, Legal, Letter
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 200 g/m²
Auto Document Feeder (ADF) media weight	60 - 105 g/m²
Card reader integrated	-
Sound pressure level (printing)	54 dB
Sustainability certificates	EPEAT Silver, ENERGY STAR
AC input voltage	120 V
AC input frequency	50 - 60 Hz
Power consumption (max)	1248 W
Power consumption (off)	0.03 W
Power consumption (ready)	36 W
Power consumption (sleep)	8.4 W
Power consumption (printing)	630 W
Power consumption (average operating)	- W
Energy Star Typical Electricity Consumption (TEC)	0.567 kWh/week
Storage temperature (T-T)	0 - 40 °C
Operating temperature (T-T)	10 - 32 °C
Storage relative humidity (H-H)	35 - 85 %
Operating relative humidity (H-H)	20 - 80 %
Quantity per pack	1 pc(s)

Weight and Dimensions

Depth	426.7 mm
Width	434.4 mm
Height	485.1 mm