Brother MFC-J2320 Service Manual

Confidential
2-34
Carriage motor cannot stop.
Casing internal thermistor defective
Machine internal thermistor detects -20 degree-C or less and 80 degree-C or more
when power is on.

Error Code 3F
Unable to Print 3F
LCD
Step Cause Solution
1 Carriage motor harness
connection failure
Reconnect the carriage motor harness.
2 CR encoder strip stained Clean the CR encoder strip.
3 CR encoder strip defective Replace the CR encoder strip.
4 CR encoder sensor defective Replace the carriage PCB ASSY.
5 Carriage motor defective Replace the carriage motor ASSY.
6 Main PCB defective Replace the main PCB ASSY.

Error Code 40
Unable to Print 40
LCD
Step Cause Solution
1 Machine internal thermistor
defective
Replace the ink refill ASSY.
2 Main PCB defective Replace the main PCB ASSY.

Brother MFC-J2320 Specifications

General

Print Technology	Inkjet
Functions	Print, Copy, Scan, Fax
Connectivity	USB, Ethernet, Wi-Fi
Max Print Resolution	6000 x 1200 dpi
Max Print Size	A3
Scanner Type	Flatbed with ADF
Max Scan Resolution	1200 x 2400 dpi
Copy Speed (Black)	12 cpm
Copy Speed (Color)	9 cpm
Paper Tray Capacity	250 sheets
Mobile Printing	Brother iPrint&Scan, AirPrint, Google Cloud Print
Display	2.7" LCD touchscreen
Paper Handling	A3, A4