Brother DCP-7090 Service Manual page 112

 Error code E900
An error occurred while initializing the NFC.
Step
Connection failure of the panel
1
flat cable
Connection failure of the NFC flat
2
cable
3 Panel PCB failure
4 NFC PCB failure
5 Main PCB failure
 Error code F900
The spec code was not entered correctly.
Step
The power was turned OFF while
1 function code 74 was running.
2 Main PCB failure
Memo:
• For non touch panel models, simultaneously pressing the [*] and the [#] clears the error
display under error code F900 display, and then the maintenance mode can be selected
again.
• For touch panel models, pressing the [*] or the [#] clears the error display under error
code F900 display, and then the maintenance mode can be selected again.
• For DCP models, press the [▲] or the [▼] under error code F900 display to select the
maintenance mode.
Cause
Cause
2-72
Remedy
Reconnect the panel flat cable.
Reconnect the NFC flat cable.
Replace the panel PCB ASSY.
Replace the NFC PCB ASSY.
Replace the main PCB ASSY.
Remedy
Reenter the spec code. (Refer to
Configure for country/region and model
(Function code 74)" in Chapter
Replace the main PCB ASSY.
"1.3.23
5.)
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