Canon imagePROGRAF W8400 W8400 User's Guide - Page 376
Print quality trouble, Unexpected Printing Results, Printing is faint
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Unexpected Printing Results Print quality trouble Printing is faint Cause 1: Printing on the wrong side of the sheet. Solution 1: Check the front and back side of the media. If you print on the other side of the media, you will not achieve the correct results in printing. Cause 2: If you frequently change the type of Bk ink, the Bk ink may become patchy. Solution 1: Execute Head Cleaning B. (→ P.4-39) Cause 3: Printhead nozzles are jammed. Solution 1: Print a nozzle check pattern to confirm the condition of the printhead. If a printhead nozzle is blocked, do the printhead cleaning procedure. (→ P.4-37, P.4-39) Solution 2: If only yellow appears smeared, you may be able to correct this by selecting on the operation panel Med. Detail Set.→Correct Smear→On. (→ P.1-21) Cause 4: A printout is in the output stacker. Solution 1: The capacity of the output stacker is limited to one printout. Start the next print job only after you have removed the previous printout from the output stacker. Cause 5: The ink port needle is stuck and the ink has clogged. Solution 1: Leave the printer with the ink tanks installed for more than 24 hours and then execute Head Cleaning B. (→ P.4-39) Cause 6: A piece of jammed sheet remains under the top cover. Solution 1: Follow the procedure below to remove paper scraps from under the top cover. 1. Press the Online button to display Offline. 2. Press and hold [ ] for at least 1 sec. to move the carriage to the center. 3. Open the top cover. 4. Remove all the paper scraps under the top cover. Cause 7: The ink was not dry enough for cutting during borderless printing. Solution 1: Use the operation panel to lengthen the settings for Drying_Time in the Med.Detail Set.. Cause 8: You may be using the wrong type of black ink tank. Solution 1: Use a new black ink tank, and then perform the ChangeBkInkType procedure again. (→ P.4-48) 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 6- 29 Index