Brother HL-T4000DW

Maintenance Mode	Function
01	EEPROM Parameter Initialization
02	Creating of Head Calibration Data and Writing it into Flash ROM
08	ADF Performance Test
09	Printout of Test Pattern
10	Worker Switch (WSW) Setting
11	Printout of Worker Switch (WSW) Data
12	Operational Check of LCD
13	Operational Check of Keys on Control Panel
28	Updating of Firmware Using a USB flash memory
32	Sensor Operational Check
37*	Printout of Dial Log
45	PCL/PS function setting (MFC-J6935DW/J6945DW/J6947DW, HL-J6000DW/J6100DW only)
46	Backup of Machine Information
53	Transfer of Received FAX Data and/or Equipment's Log
54	Fine Adjustment of Scanning Position
55	Acquisition of White/Black Level Data
56	Periodic Purge Time Setting (Ink tank model/Simple Ink cartridge model only)
57	Cartridge IC Communication Check
58	Updating of Paper Feeding Correction Values
59	Checking of CIS Travel and Setting of CIS Type
61	Printout of PRN/JPEG Files in USB Flash Memory
63	Move of the Head/Carriage Unit to the Adjustment Position
65	Adjustment of Software Correction for Inclination/Corrugation/Ruled Lines
66	Adjustment of Margins in Borderless Printing
68	Updating of Head Property Information and Backup/Restoration of Head Calibration Data
69	Traveling Speed Check of Head/Carriage Unit
74	Customizing Destinations
75	Move of the Head/Carriage Unit to the Center
76	Purge Operation
77	Print of the Maintenance Information
78	Adjustment of Touch Panel
80	Display of the Equipment's Log
82	Equipment Error Code Indication
87	Output of Transmission Log to the Telephone Line
88	Assurance Mode Switch Setting (AMS)
89	Printout of Block Pattern (Ink tank model/Simple Ink cartridge model only)
91	EEPROM Parameter Initialization
99	Exit from the Maintenance Mode

Shaded maintenance mode functions are available to end users.

* Exclusive to the end user-accessible maintenance mode.