Brother DCP-7070DW Service Manual

iii
Confidential
3.13.4 Low voltage power supply PCB ASSY failure .................................................... 2-103
3.13.5 NCU ASSY failure .............................................................................................. 2-103
3.14 Other Problems ............................................................................................................... 2-104
3.14.1 The machine is not turned ON, or the LCD indication does not appear ............. 2-104
3.14.2 Fuser fan does not rotate ................................................................................... 2-104
3.14.3 The room temperature is high or low .................................................................. 2-104
3.14.4 Problem associated with Secure Function Lock ................................................ 2-104
CHAPTER 3 DISASSEMBLY/REASSEMBLY
1. SAFETY PRECAUTIONS ........................................................................................................ 3-1
2. PACKING ................................................................................................................................. 3-2
3. SCREW CATALOGUE ............................................................................................................. 3-3
4. SCREW TORQUE LIST ........................................................................................................... 3-4
5. LUBRICATION ......................................................................................................................... 3-6
6. OVERVIEW OF GEARS ........................................................................................................... 3-7
7. HARNESS ROUTING ............................................................................................................. 3-10
8. DISASSEMBLY FLOW CHART ............................................................................................. 3-26
9. DISASSEMBLY PROCEDURE .............................................................................................. 3-27
9.1 Paper Tray ........................................................................................................................ 3-29
9.2 Cord Hook ......................................................................................................................... 3-32
9.3 Back Cover ....................................................................................................................... 3-33
9.4 Outer Chute ASSY ............................................................................................................ 3-34
9.5 Fuser Cover ...................................................................................................................... 3-35
9.6 Inner Chute ASSY, Eject Pinch Roller R ASSY and Eject Pinch Roller L ASSY .............. 3-36
9.7 Front Cover ASSY, Support Flap 1 ................................................................................... 3-38
9.8 Side cover L / Handset holder ASSY ................................................................................ 3-40
9.9 Side Cover R .................................................................................................................... 3-43
9.10 ADF Unit (For models with ADF) ...................................................................................... 3-44
9.10.1 ADF Unit ............................................................................................................... 3-44
9.10.2 Hinge ASSY L / Hinge Arm R / Hinge R / Hinge R support .................................. 3-46
9.10.3 Document Stopper ............................................................................................... 3-47
9.10.4 Document Sub Tray ............................................................................................. 3-48
9.10.5 ADF Cover ASSY ................................................................................................. 3-49
9.10.6 Gear Cover ........................................................................................................... 3-50
9.10.7 Separation Roller ASSY ....................................................................................... 3-51
9.10.8 Separation Rubber Holder ASSY ......................................................................... 3-52
9.10.9 Upper Document Chute ASSY SX ....................................................................... 3-53
9.10.10Document Feed Roller ASSY ............................................................................... 3-54
9.10.11Lower Document Chute ASSY ............................................................................. 3-55
9.10.12Ejection Roller ASSY ............................................................................................ 3-56
9.10.13ADF motor ............................................................................................................ 3-57

Brother DCP-7070DW Specifications

General

Dimensions (WxDxH)	405 x 399 x 268 mm
All-in-one functions	Copy, Print, Scan
Color all-in-one functions	Scan
Print technology	Laser
Maximum resolution	2400 x 600 DPI
Economical printing	Yes
Duplex printing mode	Auto
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	26 ppm
Duplex print speed (black, normal quality, A4/US Letter)	5 ppm
Digital sender	No
Maximum duty cycle	- pages per month
Page description languages	BR-Script 3, PCL 6
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	99 copies
N-in-1 copy function (N=)	2, 4
Time to first copy (black, normal)	11 s
Copy speed (black, normal quality, A4)	26 cpm
Scan to	E-mail, File, Image, OCR
Scanner type	Flatbed scanner
Grayscale levels	256
Input color depth	48 bit
Output color depth	24 bit
Image formats supported	BMP, JPG, TIF
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	600 x 2400 DPI
Total input capacity	250 sheets
Total output capacity	100 sheets
Multi-Purpose tray input capacity	1 sheets
Custom media width	76.2 - 216 mm
Maximum print size	216 x 406 mm
Custom media length	116 - 406.4 mm
Paper tray media types	Bond paper, Plain paper, Recycled paper
Paper tray media weight	60 - 105 g/m²
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
Multi-purpose tray media types	Envelopes, Heavyweight paper, Labels, Plain paper, Recycled paper, Transparencies
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Display	LCD
Market positioning	Home & office
Display number of lines	2 lines
Display number of characters	16
Standard interfaces	Ethernet, USB 2.0, Wireless LAN
USB 2.0 ports quantity	1
Security algorithms	128-bit WEP, 64-bit WEP, WPA-PSK, WPA-TKIP, WPA2-PSK
Internal memory	32 MB
Processor family	ARM
Sound power level (standby)	30 dB
Sound pressure level (printing)	53 dB
AC input frequency	50 - 60 Hz
Power consumption (standby)	55 W
Power consumption (PowerSave)	1 W
Power consumption (average operating)	445 W
Package weight	13.400 g
Sustainability certificates	ENERGY STAR
Mac operating systems supported	Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard
Server operating systems supported	Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64
Windows operating systems supported	Windows 2000 Professional, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64