Canon imagePROGRAF W8400 W8400 User's Guide - Page 284

‹ Cleaning the Printhead Cleaning the Printhead When the ink nozzles of the printhead become clogged, you can restore normal operation by cleaning the printhead. Note z If you activate the Nozzle Check setting, the printer checks the nozzles and executes automatic recovery each time the specified number of pages are printed. The default setting is 10 Pages. Types of Printhead Cleaning There are two methods for printhead cleaning. „ Head Cleaning A: Execute Head Cleaning A when printing appears uneven, or when the printhead is dirty. This cleaning method consumes the least amount of ink. Head Cleaning A requires approximately 90 seconds. „ Head Cleaning B: Execute Head Cleaning B if no ink is coming out of the printhead or if Head Cleaning A did not correct the problem. Head Cleaning B requires approximately 3 mins. 30 seconds. Printhead Cleaning Procedure Follow this procedure to clean the printhead. The procedure is almost the same for each method. If printing does not improve after executing Head Cleaning A once, execute Head Cleaning B. If Head Cleaning B does not correct the problem, repeat Head Cleaning B two or three times. If the printer operation does not recover after running Cleaning B, the printhead may have reached the end of its service life. Call for service or contact the dealer where you purchased the printer. Note z You can execute Head Cleaning A by holding down the Information button for more than three seconds. 1 If the printer power is off, press the Power button to switch the printer on. Data Message Information Power Cleaning (3 sec.) Stop/Eject (1 sec.) Online Offline Menu Within a short time, Online or Offline is displayed. TOP Chapter 1 Basic Use Chapter 2 Using Various Media Chapter 3 Printing by Objective Chapter 4 Maintenance Chapter 5 Using the Printer in a Network Environment Chapter 6 Troubleshooting Chapter 7 Operating the Function Menu Contents 4- 39 Index