how to fix the 5b00 p07 error of cannon inkjet

how to fix the 5b00 p07 error of cannon inkjet

follow 

0. turn off the printer

1. push 'power' button and 'stop' 5 times.(keep pushing 'power'). 

2. push ' stop' 4 times. Then push 'power' 1 time.

3. push 'stop' 3 times. Then push 'power' 1 time.

4. push 'stop' x 5, 'power' x 1

5. printer will print 'D=0.000'

6. turn off printer

7. turn on printer

8. lcd will display "1".

all done.