Canon imagePROGRAF PRO-300 13" Photographic Inkjet Printer - Manual (Page 255)

Cleaning the Print Head
Clean the print head if lines are missing or if horizontal streaks are present in the printed nozzle check
pattern. Cleaning unclogs the nozzles and restores the print head condition. Cleaning the print head
consumes ink, so clean the print head only when necessary.
You need to prepare: a sheet of A4 or Letter-sized plain paper
1. Check that printer is turned on.
2. Load a sheet of A4 or Letter-sized plain paper in the top feed.
Loading Paper in the Top Feed
3. Select Maintenance on HOME screen.
LCD and Operation Panel
The Maintenance screen will appear.
4. Select Print Head Cleaning .
The Print Head Cleaning screen will appear.
5. Select Cleaning .
The Cleaning screen will appear.
6. Select ink group to be cleaned.
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