Brother MFC-9840CDW Service Manual

Confidential
3-5
Location of screw Screw type
Q'ty
Tightening torque
N m (kgf • cm)
Joint cover FR Taptite, bind B M4x12 2 0.80 ±0.1 (8 ±1)
Joint cover FL Taptite, bind B M4x12 2 0.80 ±0.1 (8 ±1)
Top cover USB front ASSY Taptite, bind B M3x8 3 0.50 ±0.1 (5 ±1)
USB holder Taptite, bind B M3x8 3 0.50 ±0.1 (5 ±1)
Wireless LAN PCB ASSY Taptite, bind B M4x12 2 0.80 ±0.1 (8 ±1)
Speaker holder Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
Speaker hold spring Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
Taptite, bind B M3x10 2 0.70 ±0.1 (7 ±1) Paper feed frame unit
Taptite, cup S M3x6 1 0.70 ±0.1 (7 ±1)
PF plate Taptite, bind B M3x8 5 0.40 ±0.1 (4 ±1)
Belt cleaner release sensor PCB ASSY Taptite, bind B M3x8 1 0.50 ±0.1 (5 ±1)
THM/HUM sensor holder ASSY Taptite, cup S M3x6 4 0.69 ±0.1 (6.9 ±1)
THM/HUM ground plate Taptite, cup S M3x6 1 0.69 ±0.1 (6.9 ±1)
Release rack plate Taptite, cup B M3x8 1 0.49 ±0.1 (4.9 ±1)
Front door unit earth Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
Wire support rope Shoulder screw 1 0.80 ±0.1 (8 ±1)
Harness cover MP Taptite, cup S M3x6 1 0.78 ±0.1 (7.8 ±1)
Taptite, cup B M4x10 5 0.59 ±0.1 (5.9 ±1) Front door sub
Taptite, cup B M3x8 1 0.39 ±0.1 (3.9 ±1)
EL electrode spring cover ASSY Taptite, bind B M3x8 2 0.392 ±0.098 (3.92 ±0.98)
EL spring harness ASSY Taptite, bind B M3x8 2 0.392 ±0.098 (3.92 ±0.98)
Front door main Taptite, bind B M4x10 2 0.59 ±0.1 (5.9 ±1)
Hook cover Taptite, cup B M4x10 2 0.59 ±0.1 (5.9 ±1)
Engine PCB ASSY Taptite, cup S M3x6 5 0.80 ±0.1 (8 ±1)
Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1) Ground plate
Taptite, bind B M4x12
1 1.20 ±0.1 (12 ±1)
1
0.80 ±0.1 (8 ±1)
(Frame unit side)
Ground spring plate Taptite, cup S M3x6
1
0.50 ±0.1 (5 ±1)
(Main PCB ASSY side)
Main PCB ASSY Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
Hook slope Taptite, cup S M3x8 4 0.70 ±0.1 (7 ±1)
8
0.90 ±0.1 (9 ±1)
(Top side)
Scanner cover Taptite, cup S M3x6
1
0.80 ±0.1 (8 ±1)
(Front side)
Laser unit Taptite, cup S M3x6 SR 7 0.80 ±0.1 (8 ±1)
Develop gear plate ASSY Taptite, cup S M3x6 7 0.80 ±0.1 (8 ±1)
Develop drive motor ASSY Taptite, cup S M3x6 3 0.70 ±0.1 (7 ±1)
Gear guide holder Taptite, cup B M3x10 5 0.70 ±0.1 (7 ±1)
2
0.80 ±0.1 (8 ±1)
(Frame unit side)
Harness shield plate Taptite, cup S M3x6
1
0.50 ±0.1 (5±1)
(Main shield side)
Engine PCB plate Taptite, cup S M3x6 4 0.80 ±0.1 (8 ±1)
Drum drive motor 1, 2 Taptite, cup S M3x6 4 0.70 ±0.1 (7 ±1)
Drum drive ASSY Taptite, bind B M4x12 6 1.20 ±0.1 (12 ±1)
Drum phase sensor PCB ASSY 1, 2 Taptite, bind S M3x6 2 0.70 ±0.1 (7 ±1)

Brother MFC-9840CDW Specifications

General

Print technology	Laser
Maximum resolution	600 x 2400 DPI
Economical printing	Yes
Time to first page (black, normal)	16 s
Time to first page (color, normal)	17 s
Print speed (black, normal quality, A4/US Letter)	20 ppm
Scan to	E-mail, FTP, OCR, USB
Scanner type	Flatbed scanner
Grayscale levels	256
Input color depth	48 bit
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
N-in-1 copy function (N=)	4, 9, 16, 25
Copy speed (black, normal quality, A4)	16 cpm
Faxing	Mono faxing
Fax memory	400 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	300
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	35 sheets
Internal memory	128 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	54.5 dB
Custom media sizes	(69.9 - 216mm) - (116 - 406.4mm)
Dimensions (WxDxH)	530 x 539 x 520 mm
Networking features	10/100Base-TX
Wireless technology	IEEE 802.11b/g
All-in-one functions	Copy, Fax, Scan
Maximum internal memory	0.640 GB
Color all-in-one functions	copy, print, scan
Media weight (tray 1)	60 - 105g/m2
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Recycled paper
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
JIS B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Security algorithms	LEAP
Supported network protocols (IPv4)	TCP/IP (IPv4 & IPv6)
Standard interfaces	USB 2.0
USB 2.0 ports quantity	1
Bundled software	ScanSoft PaperPort (Win) NewSoft Presto! PageManager (Mac)
Power consumption (PowerSave)	36 W
Power consumption (average operating)	515, 100 W
Package weight	45800 g
Digital sender	No
Maximum duty cycle	3000 pages per month
Market positioning	Business