Brother DCP 8085DN Service Manual

3-73
Confidential
11. DOCUMENT FEEDING PROBLEMS
Problems related to paper feeding are end user recoverable if following the User Check
items. If the same problem occurs again, follow each procedure in the order of the number
described in the Step column in the tables below.
11.1 No Feeding
<User Check>
- Check if the document is inserted correctly to the depths.
- Check whether the document is 50 or less sheets.
- Check if the ADF cover is closed.
Step Cause Check
Result Remedy
1
Document front
actuator 1
catching on some
position
Does the document front
actuator 1 move
smoothly?
No
Re-assembly the
document front actuator
1.
2
Document front
sensor 1 harness
connection failure
Is the harness of the
document front sensor 1
connected securely?
No
Reconnected the harness
of the document front
sensor 1.
3
ADF motor
harness
connection failure
Is the harness of the ADF
motor connected
securely?
No
Reconnected the harness
of the ADF motor.
4
PF solenoid failure Does the PF solenoid
move smoothly? Is it
damaged?
No
Replace the PF solenoid.
5
Document front
sensor 1
malfunction
Does the document front
sensor 1 move smoothly?
(Check it following the
procedure described in
“Maintenance mode 32”)
No
Replace the document
front sensor 1.
6
Feed roller holder
ASSY failure
Though the ADF motor
rotates, does the supply
roller rotate?
Yes
Replace the feed roller
holder ASSY.
7
ADF relay PCB
failure
Is the problem solved
after replacing the ADF
relay PCB?
Yes
Replace the ADF relay
PCB.
8
Driver PCB failure Is the problem solved
after replacing the driver
PCB?
Yes
Replace the driver PCB.
9
ADF motor failure Is the problem solved
after replacing the ADF
motor?
Yes
Replace the ADF motor.
10
Main PCB failure Is the problem solved
after replacing the main
PCB?
Yes
Replace the main PCB.

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