Brother MFC-9840CDW Service Manual

Confidential
1-19
Error code 68
Print Unable 68
Turn the power off and then back on again.
Fuser unit failure (The side thermistor detects higher temperature than the specified value.)
Error code 69
Print Unable 69
Turn the power off and then back on again.
Fuser unit failure (The side thermistor detects lower temperature than the specified value.)
Error code 6A
Print Unable 6A
Turn the power off and then back on again.
Fuser unit failure (The side thermistor does not detect 60°C within the specified time.)
Error code 6B
Print Unable 6B
Turn the power off and then back on again.
Fuser unit failure (The center thermistor does not detect 100°C within the specified time.)
Error code 6C
Print Unable 6C
Turn the power off and then back on again.
Fuser unit failure (The center thermistor detects higher temperature than the specified value.)
Error code 6D
Print Unable 6D
Turn the power off and then back on again.
Fuser unit failure (The center thermistor detects lower temperature than the specified value.)
Error code 6E
Print Unable 6E
Turn the power off and then back on again.
Fuser unit failure (The center thermistor does not detect temperature rising within the specified
time.)
Error code 6F
Print Unable 6F
Turn the power off and then back on again.
Fuser unit failure (The center and side thermistors detect extremely high temperature.)
Step Cause
Remedy
1 Fuser unit failure Replace the fuser unit.
2 Low-voltage power supply
PCB failure
Replace the PS PCB unit.
3 Engine PCB failure Replace the engine PCB ASSY.

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