My Brother all in one printer won't print the black ink.

1. Unplug/disconnect the power cord from your printer
2. Press Set button,while holding the Set button re-
connect the power to your printer
3. The Error code will be display "Machine Error 46"
4. If the Error code appear, press the "arrow up button"
( ^ ) there will be numbers that are going to be display.
5. Choose 8 then press Set Button
6. Press Arrow Up button again then Choose Zero (0) and
press Set Button Again,now you will enter Service Mode.
8. Press "Mono Key/Button" 25 times or until "Purge Counter Appear"
9. Now press arrow up (^) again then choose "2" press Set Button
10. Press Arrow Up (^) again then choose "7" press Set Button
11. Press Arrow Up (^) again then choose "8" press Set Button
12. Press Arrow Up (^) again then choose "3" press Set Button
13. The purge counter will be reset to Zero.
14. Now Press Stop/Exit Button
15. You will return to Machine Error 46
16. Press Arrow Up (^) then choose 9 press Set Button
17. Press Arrow Up (^) again then once more choose 9 press Set Button
18. Your Printer will reset then wait until it power up again.
Courtesy of Indoreset Yahoo Group