Brother DCP9040CN

Function Code	Function
01	EEPROM Parameter Initialization
05	Printout of Scanning Compensation Data
06	Placement of Scanner Unit Position for Transportation
08	ADF Performance Test
09	Test Pattern
10	Worker Switch (WSW) Setting
11	Printout of Worker Switch Data
12	Operational Check of LCD
13	Operational Check of Control Panel Button
25	ROM Version Check
31	Drum Unit Cleaning
32	Operational Check of Sensors
45	Switching of the USB Transfer Speed in the PictBridge Mode
52	EEPROM Customizing (User-accessible)
53	Received Data Transfer Function
54	Fine Adjustment of Scan Start/End Positions
55	Acquisition of White Level Data
66	Adjustment of Color Registration
67	Paper Feeding and Ejecting Test
72	Sensitivity Adjustment of Density Sensor (Don’t use)
74	EEPROM Customizing
75	Sensitivity Adjustment of Registration-mark Sensor
78	Operational Check of Fans
80	Display of the Machine’s Log
82	Error Code Indication
83	Developing Bias Voltage Correction
87	Output of Transmission Log to the Telephone Line
91	EEPROM Parameter Initialization
99	Exit from the Maintenance Mode
---	Cancellation of the Memory Security Mode (Not applicable to the Japanese version)

* The functions shaded in the table above are user-accessible.