Brother DCP-6690CW, Service Manual, Page: 395 / 506

9-49 Confidential
9.4.24 Purge Operation (Function code 76) (User-accessible)
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Function
The machine can carry out several types of purge operations--head replacement purge, normal
purge, periodical reset purge, power purge, initial purge, user reset purge, and engine setup
purge. This function allows you to select the desired purge type and carry it out.
TIP: The purge types and their details are described on the next page.
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Operating Procedure
(1) Press the 7 and 6 keys in this order in the initial stage of the maintenance mode.
The machine displays the "CLEANING ALL" on the LCD and enters the purge mode.
(2) Press the or key to display the target color for purge.
NOTE: In models with touch panel, if the , , , and keys are not displayed on the
software keypad, it is necessary to switch the software keypads between the numerical and
function keypads by pressing the
Scan and Copy keys simultaneously.
Each time the or key is pressed, the "CLEANING ALL," "CLEANING BLACK,"
"CLEANING MAGENTA," "CLEANING CYAN," or "CLEANING YELLOW" appears
cyclically.
"CLEANING ALL": Purge for all four color inks
"CLEANING BLACK": Purge for black ink
"CLEANING MAGENTA" / "CLEANING CYAN" / "CLEANING YELLOW": Any
color choice performs purge for all three color inks.
(3) Enter the purge code according to the table on the next page.
(4) Press the Black Start ( Mono Start ) key.
Upon completion of purging, the machine automatically returns to the initial stage of the
maintenance mode.