Clean unable 50 error on Brother DCP 195C

          One day I've encountered about this error "Clean unable 50" displaying at my Brother DCP 195C screen.  Immediately I search online for the needed solutions.  And luckily I've found one.
          The following are the procedure on how to fix the "Clean unable 50" error of the Brother DCP 195C printer.

1. Plug in the printer and turn it ON.
2. Usually the error display's on screen, Press OK.
3. Then press MENU.
4. Press MONO.
5. Press the UP ARROW four(4) times. Then you notice that the ATTENTION LED and the PHOTO CAPTURE button are simultaneously blinking.
6. Enter 80 to go to maintenance mode.  When encoding the numbers (80) follow this:
         - press UP ARROW button until the number 8 appears.  press OK.
         - press UP ARROW button until the number 0 appears.  press OK.
7. Next, press continuously the MONO button until the "Purge:________" appeared.
8. Now, enter 2783 by doing the same procedure on step 6.  The counter will be reset.
9. Press STOP/EXIT.
10. Enter 99 by doing the same procedure on step 6 to exit Maintenance Mode.

The printer will automatically restart and works normally.