Brother MFC-L6902DW User Manual

2-110
Confidential
4.6.2 Nothing is displayed on the LED
4.6.3 Control panel is inoperable
<User Check>
• Turn the power switch OFF and then ON again.
Step Cause Remedy
1
Connection failure of the key PCB
flat cable
Reconnect the key PCB flat cable.
2 Panel PCB failure Replace the panel PCB ASSY.
3 Key PCB failure Replace the panel unit.
4 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Turn the power switch OFF and then ON again.
Step Cause Remedy
1
Connection failure of the panel flat
cable
Reconnect the panel flat cable.
2 Panel PCB failure Replace the panel PCB ASSY.
3 Touch panel failure Replace the touch panel ASSY.
4
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
5 Key PCB failure Replace the panel unit.
6 Main PCB failure Replace the main PCB ASSY.

Brother MFC-L6902DW Specifications

General

Print Technology	Laser
Max Print Resolution	1200 x 1200 dpi
Duplex Printing	Yes
Display	4.85" Color Touchscreen
Paper Input Capacity	570 sheets
ADF Capacity	80 sheets
Functions	Print, Copy, Scan, Fax
Processor	800 MHz
Memory	1 GB
Scan Resolution	1200 x 1200 dpi
Fax Speed	33.6 Kbps
Connectivity	USB, Ethernet, Wi-Fi
Mobile Printing	AirPrint, Google Cloud Print, Mopria, Brother iPrint&Scan
Print Speed	Up to 52 ppm - B/W (letter A)