Brother MFC-7450

1-17
Confidential
■ Error code 8A
Paper jam in Tray 1 (T1) (It is detects by the registration front sensor)
■ Error code 8D
Paper jam near paper eject tray (When power on, it is detects by the eject sensor.)
Jam Tray
Remove the jammed paper from Tray.
User Check
• Check if the paper is jammed in the tray. If jammed, remove it.
• Adjust the paper guide corresponding to the paper size.
• Check if too much paper is loaded in the tray.
Step Cause Remedy
1
Harness connection failure of
registration front sensor PCB
ASSY
Check the harness connection of the
registration front sensor PCB ASSY in the
appropriate tray, and reconnect it.
2 Paper feed roller worn out Replace the paper feed roller.
3
Registration front sensor PCB
failure
Check the sensor performance following
the procedure described in "Maintenance
mode 32". If any problem occurs, replace
the registration front sensor PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Cover is open
Open the Back cover and remove the jammed paper, or close the
Fuser Cover.
User Check
• Remove the jammed paper near the paper eject tray or the back cover.
• Close the fuser cover.
Step Cause Remedy
1
Paper eject actuator not operating
smoothly catching in some
position.
Re-assemble the paper eject actuator.
Ensure the paper eject sensor operates
smoothly.
2 Eject sensor PCB ASSY failure Replace the eject sensor PCB ASSY.
3 Main PCB failure Replace the main PCB ASSY.