Brother MFC-J220, Service Manual

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9-71 Confidential
• Selectors 5 and 6: Assurance print 1 and 2
Enabling assurance print 1 or 2 causes the machine to mix black ink (pigment-based) and a
little of cyan ink (dye-based) to use in monochrome copy or in monochrome FAX
reception and list output, respectively.
If black ink is not jetted out normally, cyan ink can be substituted for black ink in printing.
This ensures that in list printing (in which data once printed will be deleted) the data will be
preserved as a printout.
• Selectors 7 and 8: Workaround for false jam detection (Functional restriction on the paper width
sensor)
The setting made by these selectors applies to the list and index printing and test printing.
When logo printed recording paper is used, for example, the paper width sensor might
misdetect the paper present state as "no paper loaded" due to the logo's color. Limiting the
paper width sensor functions with these selectors avoids detecting such a false paper jam.
AMS02
(Printing assurance 2)
• Selectors 1 and 2: Head-platen gap offset for prevention of stains on recording paper
If using curled or thick recording paper results in a stained print face of the paper, increase
the gap between the head nozzles and the platen with these selectors to reduce stains.
Enabling the head-platen gap offset increases the gap from 1.6 to 2.3 mm. (The details are
given in the table on the next page.)
Selectors 3 and 4 on AMS05 specifies whether to enable or disable the settings made here
when borderless printing is enabled or disabled. By default, the head-platen gap offset
function is enabled only when borderless printing is disabled. For the head-platen gap
offset for A3, B4, and ledger-sized plain paper, see selector 6 on AMS05.
Selector
No.
Function Setting and Specifications
1
Head-platen gap offset
for prevention of stains on
recording paper For glossy paper
0: Disable (default) 1: Enable
2
For recording paper
except glossy paper
0: Disable (default) 1: Enable
3
|
5
Paper feed amount compensation
(for preventing banding at the leading edge of
recording paper fed from the photo tray)
No. 3 4 5
0 0 0: Enable for 4 x 6 postcards
(default)
1 0 0: Enable for Photo L-size
paper in Japan
Others: Disable
6
Registration time offset to slipping in plain
paper feeding
0: Disable (default) 1: Enable
7 Unidirectional print for higher print quality 0: Disable (default) 1: Enable
8 Improvement of paper feeding reliability 0: Disable (default) 1: Enable