Canon PIXMA MG6821 User Manual - Page 208

10. Close the document cover gently, then tap OK. The machine starts scanning the print head alignment sheet, and the print head position will be adjusted automatically. 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 the error message appears on the touch screen, tap OK to release the error, then take appropriate action. Message Appears 11. When the completion message appears, tap OK. Remove the print head alignment sheet on the platen glass. 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 (Windows) Aligning the Print Head Position (Mac OS) • To print and check the current head position adjustment values, select Print the head alignment value on the Maintenance screen. 208