Brother DCP 8085DN Service Manual

3-80
Confidential
13. OTHERS PROBLEMS
■ The machine is not turned on, or the LCD indication does not appear.
■ The fan does not work.
Step Cause Check Result Remedy
1
Harness
connection
failure of LCD
panel PCB
Is the harness of the
LCD panel PCB ASSY
connected correctly?
No
Reconnect the LCD panel
PCB ASSY harness.
2
LCD panel PCB
failure
Is the problem solved
after replacing the LCD
panel PCB ASSY?
Yes
Replace the LCD panel
PCB ASSY.
3
LCD panel failure Is the problem solved
after replacing the LCD
panel ASSY?
Yes
Replace the LCD panel
ASSY.
4
Low-voltage
power supply
failure
Is the problem solved
after replacing the PS
PCB unit?
Yes
Replace the PS PCB unit.
5
Main PCB Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
(Verify the position of each fan referring to "4.19 Operational Check of Fans (Function
code 78)" in Chapter 7.)
Step Cause Check
Result Remedy
1
Harness
connection
failure of the
appropriate fan
Is the harness of the
appropriate fan
connected correctly?
No
Reconnect the harness of
the appropriate fan
correctly.
2
Charge HVPS
PCB failure
Is the problem solved
after replacing the
charge HVPS PCB
ASSY?
Yes
Replace the charge HVPS
PCB ASSY. Replace the
fuser unit fan (FU) and air
intake fan (AIR).
3
Low-voltage
power supply
failure
Is the problem solved
after replacing the PS
PCB unit?
Yes
Replace the PS PCB unit.
Replace the LVPS fan
(PS).
4
Main PCB Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.

Brother DCP 8085DN Specifications

General

Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Economical printing	Yes
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	30 ppm
Scan to	CIFS, E-mail, FTP, Image, OCR, USB
Scanner type	Flatbed scanner
Grayscale levels	256
Input color depth	48 bit
Output color depth	24 bit
Image formats supported	BMP, JPG
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	600 x 2400 DPI
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
N-in-1 copy function (N=)	2
Copy speed (black, normal quality, A4)	30 cpm
Total input capacity	250 sheets
Total output capacity	150 sheets
Auto document feeder (ADF) input capacity	50 sheets
Internal memory	64 MB
Maximum internal memory	576 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	56 dB
Display	TFT
Market positioning	Business
Maximum print size	216 x 356 mm
Media weight (tray 1)	60 - 105 g/m²
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Transparencies
Non-ISO print media sizes	Executive
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Dimensions (WxDxH)	531 x 451 x 475 mm
All-in-one functions	Copy, Scan
Compatible operating systems	Windows 2000 Professional, XP Home Edition, XP Professional Edition, XP professional x64 Edition, Vista Mac OS X 10.3.9 + Linux
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 Server, TELNET Server, HTTP/HTTPS server, SSL/TLS, TFTP client and server, SMTP Client, APOP, POP before SMTP, SMTP-AUTH, SNMPv1/v2c/v3, ICMP, LLTD responder, Web Services (Print), CIFS Client, SNTP
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, SSL/TLS, TFTP client and server, SMTP Client, APOP, POP before SMTP, SMTP-AUTH, SNMPv1/v2c/v3, ICMPv6, LLTD responder, Web Services (Print), CIFS Client, SNTP
Standard interfaces	Ethernet, Parallel, USB 2.0
USB 2.0 ports quantity	1
Bundled software	Brother MFL-pro suite in Windows: BrotherControlCentre 3 Scansoft Paperport 11SE + OCR, Macintosh:BrotherControlCentre 2 Newsoft Presto! Page manager 7
Power consumption (standby)	85 W
Power consumption (PowerSave)	16 W
Power consumption (average operating)	680 W
Package weight	21800 g
Maximum duty cycle	30000 pages per month
Page description languages	BR-Script 3, Epson FX, IBM ProPrinter, PCL 6