Brother DCP-J552DW Service Manual page 303

Selector
No.
Prevention of stains on back side of
1 leading edge of paper in borderless
printing
2 Not used
Protection of platen from no-paper
3 printing to prevent stains
(Functional restriction on the paper
4
width sensor)
Assurance print 1
5 Printing with black and cyan inks in
monochrome copy
Assurance print 2
(Printing with black and cyan inks in
6
monochrome FAX reception and in
list output)
Workaround for false paper jam
7 detection
8 (Functional restriction on the paper
width sensor)
Selector 1: Prevention of stains on back side of leading edge of paper in

borderless printing
Setting this selector to "1" reduces the protruding amount of the leading edge of recording
paper to the platen groove to minimize stains that could be caused by ink mist on the back side
of the leading edge. Enabling this function increases the throughput rather than disabling it.
Selectors 3 and 4: Protection of platen from no-paper printing to prevent stains

The setting made by these selectors applies to such printing that is assumed to be at a high
resolution, that is, printing from a PC or memory card, copying, and printing via PictBridge.
If these selectors are set to "0, 0", the machine automatically determines the functions of the
paper width sensor depending upon the print resolution selected. Therefore, in low resolution
printing, e.g. when the "Fast" print quality is selected, the paper width sensor is automatically
disabled. On the contrary, in high resolution printing, e.g. when the "Highest" print quality is
selected, the sensor is automatically enabled.
Setting these selectors to "1, 1" disables the paper width sensor.
AMS01 (Printing Assurance 1)
Function
(Functional restriction on the paper width sensor)
5-71
Setting and Specifications
0: Disable (default)
No. 3 4
0 0 : Automatically select depending
upon the print resolution
(Default)
0 1 : Detect the leading edge plus left
and right edges of paper
1 0 : Detect only the leading edge of
paper
1 1 : Do not detect paper
0: Disable (default)
0: Disable (default)
No. 7 8
0 0 : Detect both the leading edge and
width of paper
(Default)
0 1 : Detect both the leading edge and
width of paper
1 0 : Detect only the leading edge of
paper
1 1 : Do not detect the leading edge or
width of paper
1: Enable
1: Enable
1: Enable
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