Brother DCP-L6600DW

Function code	Function
01	Initialize EEPROM parameters
08	ADF performance test
09	Print quality test pattern
10	Set worker switches (WSW)
11	Print worker switch (WSW) setting data
12	Check LCD operation
13	Check control panel key operation
18	Save NetConfig data
25	Display software version
28	Change setting for OnePushDemo function
32	Check sensor operation
33	Display LAN connection status
43	Set PC print functions
45	Change USB No. return value / Adjust left-end print position / Adjust upper-end print position / Set HEXDUMP Mode
46	Adjust printable range for each speed level (Full speed / Half speed for thick paper / Quiet Mode)
52	Set country / language
53	Transfer received fax data / log information (fax models only)
54	Fine-tune scanning position
55	Acquire white level data and set CIS scan area
61	Adjust touch panel
67	Continuous print test
69	Print frame pattern (single-side printing)
70	Print frame pattern (duplex printing)
71	Print test pattern
74	Configure for country/region and model
77	Print maintenance information
78	Check main fan operation
79	Delete fax data
80	Display machine log information
82	Display machine error code
87	Send communication log information to telephone line
88	Reset counters for consumable parts
91	Initialize EEPROM parameters
99	Quit maintenance mode

* The maintenance mode functions shaded in the table can be used by end users.