Canon imagePROGRAF PRO-300 PRO-300 series User Manual - Page 199

Maintenance Procedure If print results are blurred, colors are not printed correctly, or print results are unsatisfactory (e.g. misaligned printed ruled lines), perform the maintenance procedure below. Important • Do not rinse or wipe the print head and ink tank. This can cause trouble with the print head and ink tank. Note • Check the ink status. Checking Ink Status on the LCD • For Windows, increasing the print quality in the printer driver settings may improve the print result. Changing the Print Quality and Correcting Image Data When the Print Results Are Blurred or Uneven: Step1 Print the nozzle check pattern. From the printer Printing the Nozzle Check Pattern From the computer • For Windows: Printing a Nozzle Check Pattern • For macOS: Printing a Nozzle Check Pattern Step2 Examine the nozzle check pattern. If there are missing lines or horizontal streaks in the pattern: Step3 Clean the print head. From the printer Cleaning the Print Head From the computer • For Windows: Cleaning the Print Heads • For macOS: Cleaning the Print Heads 199