Brother DCP-B7500D Service Manual

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Confidential
4.14 Troubleshooting for Other Problems
4.14.1Cannot make print
<User Check>
• Turn the power switch OFF and then back ON again.
• Check that the USB cable is connected to the host correctly.
• Check that the LAN cable is connected to the host correctly.
• Replace the USB cable.
• Replace the LAN cable.
• Check that the maximum printable page number has not been exceeded.
• Check that the PC Print is not forbidden.
• Check the print limit ID.
• Check the network connection.
• Check the relevant section in the Network Setting Guide.
• Check that the print data is not damaged.
• Install the latest main firmware.
• Match the document size with the one specified in the driver.
• Check that the printer driver used is the correct driver.
• Set the paper of the specified size in each tray again.
• Close the paper tray properly.
Step Cause Remedy
1
Connection failure of the wireless
LAN connector
Reconnect the wireless LAN connector.
2
Connection failure of the MP
paper empty sensor PCB harness
Reconnect the MP paper empty sensor PCB
harness.
3
Connection failure of the T1
paper feed sensor harness (non
paper empty sensor models only)
Reconnect the T1 paper feed sensor harness.
4
Connection failure of the T1
paper empty/paper feed sensor
harness (paper empty sensor
models only)
Reconnect the T1 paper empty/paper feed sensor
harness.
5
Connection failure of the T1
clutch harness
Reconnect the T1 clutch harness.
6
T1/MP paper empty actuator
caught in some sections of the
machine (paper empty sensor
models only)
Reattach the appropriate T1/MP paper empty
actuator.
7
T1 paper feed actuator caught in
some sections of the machine
(non paper empty sensor models
only)
Reattach the T1 paper feed actuator.
8
T1 paper feed sensor PCB failure
(non paper empty sensor models
only)
Replace the T1 paper feed sensor PCB ASSY.
9
T1 paper empty/paper feed
sensor PCB failure (paper empty
sensor models only)
Replace the T1 paper empty/paper feed sensor
PCB ASSY.
10
Wireless LAN PCB failure Replace the wireless LAN PCB.
11
Main PCB failure Replace the main PCB ASSY.

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