Brother DCP-B7500D Service Manual

iii
Confidential
4.13.3 Communication error occurs .............................................................................. 2-114
4.13.4 Receive buffer full during receiving into memory ............................................... 2-114
4.14 Troubleshooting for Other Problems ............................................................................... 2-115
4.14.1 Cannot make print .............................................................................................. 2-115
4.14.2 Cannot update firmware ..................................................................................... 2-116
4.14.3 “Paper Low” message does not disappear ......................................................... 2-116
4.14.4 Message indicating that the report is full does not disappear ............................ 2-117
4.14.5 Paper tray cannot be recognized ....................................................................... 2-117
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 .................................................................................................................. 3-9
8. DISASSEMBLY FLOW CHART ................................................................................................ 3-22
9. DISASSEMBLY PROCEDURE ................................................................................................. 3-23
9.1 Preparation ....................................................................................................................... 3-23
9.2 Cord hook ......................................................................................................................... 3-25
9.3 Back cover ........................................................................................................................ 3-26
9.4 Outer chute ASSY ............................................................................................................ 3-27
9.5 Front cover ASSY / Support flap ....................................................................................... 3-28
9.6 Side cover R ..................................................................................................................... 3-31
9.7 Fuser cover ....................................................................................................................... 3-32
9.8 Inner chute ASSY ............................................................................................................. 3-33
9.9 Side cover L / Speaker harness ASSY /
Handset holder ASSY (For models with Handset) ............................................................ 3-34
9.10 Document scanner unit ..................................................................................................... 3-37
9.11 ADF unit (For models with ADF) ....................................................................................... 3-40
9.11.1 ADF unit ............................................................................................................... 3-40
9.11.2 ADF cover ASSY / Document stopper ................................................................. 3-43
9.11.3 Document sub tray ............................................................................................... 3-44
9.11.4 Document separate roller ASSY .......................................................................... 3-46
9.11.5 ADF separation holder ASSY ............................................................................... 3-47
9.11.6 Second side CIS unit / Second side CIS flat cable
(Only for models with duplex scanning) ............................................................... 3-48
9.12 Document cover ASSY (For models without ADF) ........................................................... 3-53
9.13 Panel unit (For Touch panel models) ................................................................................ 3-55
9.13.1 Panel unit ............................................................................................................. 3-55

Brother DCP-B7500D Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	2400 x 600 DPI
Duplex printing mode	Auto
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	34 ppm
Printing colors	Black
Duplex functions	Print
Maximum duty cycle	15000 pages per month
Number of print cartridges	1
Page description languages	BR-Script 3, PCL 6, PDF 1.7
Copier resize	25 - 400 %
Duplex copying	-
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	99 copies
Scan to	E-mail, File, Image
Input color depth	30 bit
Output color depth	24 bit
Input grayscale depth	10 bit
Output grayscale depth	8 bit
Optical scanning resolution	1200 x 1200 DPI
Faxing	No
Total input capacity	250 sheets
Total output capacity	120 sheets
Paper tray media types	Plain paper, Recycled paper, Thin paper
Paper tray media weight	60 - 230 g/m²
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Legal (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
Maximum ISO A-series paper size	A4
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Product color	Gray
Market positioning	Home & office
Mac operating systems supported	Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, Mac OS X 10.2 Jaguar, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, Mac OS X 11.0 Big Sur
Windows operating systems supported	Windows 10, Windows 7, Windows 8, Windows 8.1
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (off)	0.03 W
Power consumption (ready)	42 W
Power consumption (sleep)	6.2 W
Power consumption (printing)	485 W

Weight and Dimensions

Depth	398.5 mm
Width	410 mm
Height	272 mm