Canon PIXMA iP2850 - Manual (Page 59)

• The printer cannot print unless both the color FINE cartridge and black FINE cartridge are
installed. Be sure to install both cartridges.
7. Close the cover.
Note
• If the Alarm lamp lights or flashes orange after the cover is closed, take appropriate action.
If an Error Occurs
• The printer may make noise during operation.
8. Adjust the print head position.
After replacing the FINE cartridge, align the print head.
Aligning the Print Head Position from Your Computer
59