Brother DCP-B7500D Service Manual

2-50
Confidential
 Error code 0900
Detected irregular power supply for more than 100 times.
 Error code 0A02
Detected a fan failure.
Step Cause Remedy
1
Low-voltage power supply PCB
failure
Replace the low-voltage power supply
PCB ASSY. Refer to “1.3.30 Reset
irregular power supply detection counter
of low-voltage power supply PCB
(Function code 88)” in Chapter 5 to reset
the irregular power supply detection
counter after the replacement.
2 Main PCB failure Replace the main PCB ASSY.
Note:
The irregular power supply detection error (Error code 0900) of the low-voltage power
supply PCB occurs when there is a large distortion in the power supply voltage supplied to
the machine. In this case, if the same power supply is used, the same error might occur
again even if the low-voltage power supply PCB ASSY is replaced. For this reason, be sure
to ask the user to rearrange the installation environment.
Step Cause Remedy
1
Connection failure of the fan
harness
Reconnect the fan harness.
2
Connection failure of the high-
voltage power supply PCB
harness
Reconnect the high-voltage power supply
PCB harness.
3 Fan failure Replace the fan.
4
High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
5 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