Canon PIXMA MG7520 User Manual - Page 217

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 • Make sure that the orange protective tape does not remain on the ink tank. • Open the operation panel and make sure that the lamp on the ink tank is lit. If the lamp is flashing or off, take appropriate action. Checking the Ink Status with the Ink Lamps • 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 machine Printing the Nozzle Check Pattern From the computer Use Your Computer to Print a Nozzle Check Pattern Step2 Examine the nozzle check pattern. If there are missing lines or horizontal white streaks in the pattern: Step3 Clean the print head. From the machine Cleaning the Print Head From the computer 217