Brother DCP 8085DN Service Manual

2-8
Confidential
3.2.2 ADF unit
The ADF unit is equipment which sends one document or the document for every plurality to
the ADF scanning part of the scanner unit, and performs continuation scanning. As for the
ADF of this machine, the duplex scanning is also possible.
Performance of the ADF
- The number of maximum capacity: Up to 50 sheets
- Maximum resolution: Up to 600dpi
- Maximum scanning speed:
32 pages/minute (Letter size) (Simplex scanning)
14 sides/minute (Letter size) (7pages/minute) (Duplex scanning)
- Maximum input media size: Width 148.0mm, Length 148.0mm
- Minimum input media size: Width 215.9mm, Length 355.6mm
1. Function of each roller
- Pick-up roller
Send the document of the inserted ADF to the inside of the ADF.
- Separation roller
Separate the sent document one by one.
- Paper feed roller 1, 2, 3, 4
Send the document.
- SB (switch back) roller ASSY
When the duplex scanning, this motor is rotated by contraries, draws the sent out
document to the inside of ADF again.
- Eject roller
Eject the document.
2. Function of each sensor
- Document front sensor 1
Detects whether the document is set in the ADF.
- Document front sensor 2
Detects whether the document is sent by the separation roller.
- Document rear sensor
Detect the timing of the scanning start of the document.
- Switch back sensor
When the duplex scanning, detect the timing of the reversing of the SB roller by the
document passed.
- Document cover open sensor
Detects whether the document cover is opened or not. Even if the document is set into
the ADF, the machine starts scanning the document glass ignoring the ADF.
3. Function of each motor/solenoid
-ADF motor
Driving source of overall ADF.
- Paper feed solenoid
The paper feed solenoid stops the driving of the pick-up roller and separation roller
while the document is drawn in order to prevent that the next document is drawn into
the ADF while duplex printing.
- Switch back solenoid
Switches the direction of rotation of the SB roller 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