Brother MFC-9840CDW Service Manual

Confidential
5-16
LCD Sensors Sensing status (ON/OFF)
DV
BC
NW
FW
Develop release sensor
Belt cleaner release sensor
Waste toner sensor 1
Waste toner sensor 2
Release / Welding
Release / Contact
Toner not detected / nearly full
Toner not detected / full
LCD Temperature and humidity
sensors
Sensing status (OK / NG)
TMP
HUM
MAC
BT
THM sensor
HUM sensor
Internal temperature sensor
Belt unit temperature sensor
XX°C / NG
XX% / NG
XX
°C / NG
XX
°C / NG
Note:
If the sensor detects the abnormal value, the machine displays “NG” on the LCD.
LCD Sensors Sensing status (ON/OFF)
DF
DR
DL
DS
FC
FH
Document front sensor
Document rear sensor
ADF document separation
sensor / Size sensor
ADF document SB sensor
FB cover sensor
FB unit home position sensor
No document detected / detected.
No document detected / detected.
Document detected / not detected
No document detected / detected.
Document cover closed / opened.
CCD unit home position detected / not
detected
Note:
- The “-- ” appears on the LCD if the sensor is OFF.
- The “
**
” appears on the LCD if the parts are not installed or there is no term.
(2) Change the detecting conditions to check that the indication on the LCD changes
according to the sensor states. For instance, insert paper through the document front (or
rear) sensor or the registration sensor (s), open the front cover or the document cover,
remove the toner cartridge, jam paper at the paper outlet, insert paper from the manual
feeder, and load a recording paper tray, etc.
(3) Press the Stop/Exit button. The machine beeps for one second and returns to the initial
stage of the maintenance mode.

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