Brother MFC-9125CN Service Manual

ii
Confidential
Details of adjustments and updating of settings, which are required if the main PCB and some
other parts have been replaced. This chapter also covers how to update the firmware.
CHAPTER 7: SERVICE FUNCTIONS
Describes the maintenance mode which is exclusively designed for the purpose of checking
the settings and adjustments using the buttons on the control panel.
This chapter also covers not-disclosed-to-users function menus, which activate settings and
functions or reset the parts life.
CHAPTER 8: CIRCUIT DIAGRAMS & WIRING DIAGRAM
Provides the Circuit Diagrams and Wiring Diagram for the connections of the PCBs.
APPENDIX 1: WORKER SWITCH (WSW)
Describes the functions of the worker switches.
APPENDIX 2: DELETION OF USER SETTING INFORMATION etc.
Provides instructions on how to delete user setting information etc. stored in the machine.
APPENDIX 3: SERIAL NUMBERING SYSTEM
APPENDIX 4: SCREW CATALOGUE
APPENDIX 5: REFERENCES
APPENDIX 6: GLOSSARY
Information in this manual is subject to change due to improvement or redesign of the product.
All relevant information in such cases will be supplied in service information bulletins (Technical
Information).
A thorough understanding of this machine, based on information in this service manual and
service information bulletins, is required for maintaining its print quality performance and for
improving the practical ability to find the cause of problems.

Brother MFC-9125CN Specifications

General

DVD/CD printing	No
Print technology	LED
Maximum resolution	2400 x 600 DPI
Economical printing	Yes
Print speed (black, normal quality, A4/US Letter)	19 ppm
Fax compatibility	ITU-T G3
Dimensions (WxDxH)	429.3 x 490.2 x 398.8 mm
All-in-one functions	Copy, Fax, Print, Scan
Connectivity technology	Wired
Color all-in-one functions	copy, fax, print, scan
Printing colors	Black, Cyan, Magenta, Yellow
Maximum duty cycle	25000 pages per month
Number of print cartridges	4
Page description languages	BR-Script 3, PCL 6
Copier resize	25 - 400 %
Maximum copy resolution	- DPI
Maximum number of copies	35 copies
N-in-1 copy function (N=)	2, 4
Copy speed (black, normal quality, A4)	19 cpm
Scan to	CIFS, E-mail, File, FTP, Image, OCR
Scanner type	Flatbed scanner
Input color depth	48 bit
Maximum scan area	A4 / Letter (216 x 297) mm
Image formats supported	BMP, JPG, TIF
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
Fax memory	600 pages
Modem speed	33.6 Kbit/s
Fax coding methods	JBIG, JPEG, MH, MMR (Fax coding method), MR
Fax transmission speed	2 sec/page
Paper input type	Paper tray
Total input capacity	250 sheets
Total output capacity	100 sheets
Total number of input trays	2
Multi-Purpose tray input capacity	1 sheets
Maximum print size	216 x 356 mm
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Recycled paper
Non-ISO print media sizes	Executive
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Display	LCD
Market positioning	Business
Direct printing	-
Standard interfaces	Ethernet, USB 2.0
USB 2.0 ports quantity	1
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, IPP/IPPS, FTP Client and ServerTELNET Server, HTTP/HTTPS server, TFTP client and server, SMTP Client, APOP, POP before SMTP, SMTP-AUTH, SNMPv1/v2c/v3, ICMP, LLTD responder, WebServicesPrint, CIFS Client, SNTP, SSL/TLS
Supported network protocols (IPv6)	NDP, RA, DNS resolver, mDNS, LLMNR responder, LPR/LPD, Custom Raw Port/Port9100, IPP/IPPS, FTP Client and Server, TELNET Server, HTTP/HTTPS server, TFTP client and server, SMTP Client, APOP, POP before SMTP, SMTP-AUTH, SNMPv1/v2c/v3, ICMPv6, LLTD responder, WebServicesPrint, CIFS Client, SNTP, SSL/TLS
Maximum internal memory	576 MB
Sound power level (standby)	30 dB
Sound pressure level (copying)	53 dB
AC input voltage	120 V
AC input frequency	50 - 60 Hz
Power consumption (off)	11 W
Power consumption (PowerSave)	75 W
Power consumption (average operating)	480 W
Package weight	28490 g
Operating relative humidity (H-H)	20 - 80 %