- 90 -Other Issues3 3. TroubleshootingImage Quality IssuesMemo● If the following information does not solve your issues, contact your dealer.Symptom Point to check Remedy ReferenceVertical lines appear.Paper feed directionThe LED heads are dirty. Wipe the LED heads with a softtissue paper.page 111The toner is low. Replace the toner cartridge. page 97The image drum is damaged. Replace the image drum. page 101Foreign materials may be presenton the image drum.Replace the image drum. page 101The light-shielding film of theimage drum is dirty.Wipe the film with a soft tissuepaper.-The image drum is not installedproperly.Install the image drum properly. page 101Printed images arefading vertically.Paper feed directionThe LED heads are dirty. Wipe the LED heads with softtissue paper.page 111The toner is low. Replace the toner cartridge. page 97The paper is unsuitable. Use supported paper. page 43Printed images are light. The toner save is enabled. Change the toner save settings. -The toner cartridge is not installedproperly.Install the toner cartridge properly. page 97The toner is low. Replace the toner cartridge. page 97The paper is moist. Use paper stored in propertemperature and humidityconditions.page 43The paper is unsuitable. Use supported paper. page 43The paper is unsuitable.The settings of media type andweight are incorrect.Press the scroll button orand select [Menus] > [TrayConfiguration] > the paper trayconfiguration you are using, andthen select the proper valuesfor [Media Type] and [MediaWeight]. Or, select a larger valuefor [Media Weight].page 43The paper is recycled.The media weight setting isunsuitable.Press the scroll button orand select [Menus] > [TrayConfiguration] > the paper trayyou are using, and then select alarger value for [Media Weight].page 43Printed images arepartially faded. Spotsand lines appear.The paper is too moist or dry. Use paper stored in propertemperature and humidityconditions.page 43[Paper Black Setting] or [PaperColor Setting] is improperlyconfigured.Press the scroll button or ,select [Menus] > [Print Adjust],and then change the value of[Paper Black Setting] or [PaperColor Setting].-[Films Black Setting] or [FilmsColor Setting] is improperlyconfigured.Press the scroll button or ,select [Menus] > [Print Adjust],and then change the value of[Films Black Setting] or [FilmsColor Setting].-