Brother MFC Series Service Manual page 288

Selectors 6 and 7: Periodical purging intervals

These selectors allow you to select the periodical purge interval to reduce ink
consumption.
Setting these selectors "0, 0" (Prescribed purge intervals) performs purging at the
intervals.
Setting these selectors to "1, 0" (30 days (black), no purge (color)) disables the setting
made by selector 4.
Setting these selectors to "1, 1" (No purge (black and color)) disables the settings
made by selectors 4 and 8.
Selector
No.
Uneven printing correction
1 ON/OFF switching for upper and
lower ends of the nozzle
2
| Not used
4
5 Jam reduction paper feed mode
6
Adjustment of print head drive
|
voltage rank
8
Selector 1: Uneven printing correction ON/OFF switching for upper and lower

ends of the nozzle
If performing the correction lowers the print quality due to wrong nozzle property data,
set this selector to "1" to disable the correction function.
Selector 5: Jam reduction paper feed mode

Setting this selector to "1" lowers the paper feeding speed when the recording paper
passes along the star wheels for reduction of jams.
Selectors 6 through 8: Adjustment of print head drive voltage rank

This selector regulates the print head drive voltage rank for adjusting the ink drop
amount. If the black section printed on glossy paper is greenish or the printed ink does
not dry quickly, increase the print head drive voltage rank to decrease the ink drop
amount; if it is reddish, decrease the rank to increase the ink drop amount.
AMS05 (Printing Assurance 3)
Function
5-66
Setting and Specifications
0: ON (default) 1: OFF
0: Disable (default) 1: Enable
No.6 7 8
0 0 0: +0
1 0 0: -0
0 0 1: +1
0 1 0: +2
0 1 1: +3
1 0 1: -1
1 1 0: -2
1 1 1: -3
Confidential