Brother MFC-9420CN Service Manual page 207

8.1.4.19 Cancellation of the Memory Security Mode
(Not applicable to the Japanese model) ....................................................8-25
8.1.4.20 Hex Dump Mode ........................................................................................8-26
8.1.4.21 Indication of the Firmware Version ............................................................8-26
8.2 ENGINE SERVICE MODE .............................................................................................8-27
8.2.1 Entry into the Engine Service Mode ...................................................................8-27
8.2.2 List of Engine Service Mode Functions ..............................................................8-28
8.2.3 Detailed Descriptions of Engine Service Mode Functions..................................8-29
8.2.3.1 Test Print (Code 31)...................................................................................8-29
8.2.3.2 Next Care Information (Code 32)...............................................................8-32
8.2.3.3 Tray Type (Code 33) ..................................................................................8-35
8.2.3.4 Total Page (Code 34).................................................................................8-35
8.2.3.5 Each Image (Code 35) ...............................................................................8-36
8.2.3.6 Clear Care (Code 36).................................................................................8-37
8.2.3.7 Media Manage (Code 37) ..........................................................................8-37
8.2.3.8 Extend Media (Code 38) ............................................................................8-38
8.2.3.9 Factory Mode (Code 39) ............................................................................8-38
[ 1 ] Margin Adjust (Code 43) ............................................................................8-39
[ 2 ] Life Period Set (Code 44) ..........................................................................8-40
[ 3 ] NVRAM Tune Up (Code 45) ......................................................................8-41
[ 4 ] NVRAM Initial (Code 46)............................................................................8-45
[ 5 ] Total Page Set (Code 47) ..........................................................................8-45
[ 6 ] Each Image Set (Code 48) ........................................................................8-46
[ 7 ] Next Life Set (Code 49) .............................................................................8-47
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