Canon MP830 - PIXMA Color Inkjet Service Manual page 51

2) The LF correction pattern for the selected paper is printed.
3) In the printout, select the Pattern No. in which streaks or lines (white or black) are the least noticeable, press the Stop/Reset button the same
number of time(s) as the selected Pattern No., then press the ON/OFF button.
Note:
- If plain paper other than the 6 kinds specified in the table in step 1) is used, select the Pattern No. 0 (zero), leave the Stop/Reset button
untouched, and press the ON/OFF button.
- Each time the Stop/Reset button is pressed, the Alarm LED and the COPY button light alternately, Alarm in orange and COPY in green.
- If the Stop/Reset button is pressed 3 times or more, then the ON/OFF button is pressed, the machine returns to the service mode menu
selection.
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