Canon Pixma MG2500 Series Online Manual page 77

(2) Close the document cover gently, then press the Color button or the
Black button.
The machine starts scanning the print head alignment sheet, and the print head
position will be adjusted automatically.
The print head position adjustment will be complete when the ON lamp lights green
after flashing.
Remove the print head alignment sheet on the platen glass.
Important
Do not open the document cover or move the print head alignment sheet on the
platen glass until adjusting the print head position is complete.
If adjusting the print head position has failed, the Alarm lamp flashes orange.
Press the Stop button to release the error, then take appropriate action.
If an Error Occurs
Note
If the print results are still not satisfactory after adjusting the print head position as
described above, adjust the print head position manually from the computer.
Aligning the Print Head Position from Your Computer
To print and check the current head position adjustment values, hold down the Stop
button until the Alarm lamp flashes orange six times, then release it immediately.
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