![Brother HL-B2080DW Service Manual Download Page 74](http://html.mh-extra.com/html/brother/hl-b2080dw/hl-b2080dw_service-manual_53670074.webp)
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Confidential
Error code F900
The spec code was not entered correctly.
Step
Cause
Remedy
1
The power was turned OFF while
function code 74 was running.
Reenter the spec code. (Refer to
Setting by spec (Function code 74)” in
Chapter 5
2
Main PCB failure
Replace the main PCB ASSY.
Memo:
Press the [
▲
] or the [
▼
] under error code F900 display to select the maintenance mode.