Brother DCP-J552DW Service Manual page 307

Selector
No.
1
Not used
2
3 Black ink print mode
4 Automatic purging for color ink
5 Not used
6
Periodical purging interval
7
8 Automatic purging for black ink
Selector 3: Black ink print mode

If any color ink runs out, printing is no longer possible by default. Setting this selector to "1"
allows the machine to function as a monochrome printer, making it possible to print with black
ink only even in a "Replace Ink" state as listed below.
Printing FAX message
received
Print from PC
Copy
Printing from memory
cards
Printing via PictBridge
Print a list
Purge operation
Tip Difference between selector 3 on AMS04 and selector 8 on WSW49 (For details, refer to
the "Worker Switches (WSW)" document separately issued.)
Both selector 3 on AMS04 and selector 8 on WSW49 specify the similar black ink print mode
that applies if any color ink runs out. The difference is that the former allows the machine to
print all data received as a monochrome printer with black ink only; the latter to ignore the
"Replace Ink" state, receive both color and black data, and print it, resulting in a printout
missing color components.
Selectors 4 and 8: Automatic purging for color ink and for black ink

The machine periodically performs an automatic purge by default. The automatic purge,
however, wastes ink when no printing has occurred. To avoid it, disable the automatic purge
with these selectors. In the first printing after a long no-print period, disabling it may lower the
print quality.
Setting selector 4 or 8 to "1" disables the setting made by selectors 6 and 7.
AMS04 (Maintenance Assurance 2)
Function
0: Disable (default)
0: Enable (default)
No. 6 7
0: Enable (default)
Monochrome printing only possible
No printing possible
Monochrome printing only possible. The [Mono] key is enabled, but
the [Color] key is disabled.
No printing possible
No printing possible
Monochrome printing only possible
Purge operation possible for black ink only, not possible for all-color
or any specific color
5-75
Setting and Specifications
0 0 : Prescribed purge intervals default
0 1 : 30 days black, 60 days color
1 0 : 30 days black, no purge color
1 1 : No purge black and color
1: Enable
1: Disable
1: Disable
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