Chapter 4 Troubleshooting4-3Faint or blurred printing Check the EcoPrint setting.When this setting is On, switch it to Off on the operator panel.Check the operator panel.• If the Toner low message is displayed and the ATTENTIONindicator is flashing, install a new toner kit. SeeSetting EcoPrinton page 1-33.• Make sure the paper type setting is correct. SeePaper Type onpage 2-6.Clean the charger wire.Open the printer top and front covers. Remove the process unit andclean the charger wire by moving the charger cleaner (green-colored)to the right and left two or three times. SeeCleaning on page 3-3.Grey background Check the operator panel.If the Toner low message is displayed and the ATTENTIONindicator is flashing, install a new toner kit. SeeToner ContainerReplacement on page 3-1.Check the process unit installation.Open the printer top and front covers. Check that the process unit iscorrectly installed.Dirt on the top edge or back of the paper Check the transfer roller (black-colored).Open the printer top and frontcovers. Remove the process unitand check the transfer roller.If the transfer roller is dirty withtoner, try printing several pages.Check the registration roller(metal).Open the printer top and front covers. Remove the process unit andcheck the registration roller.If the registration roller is dirt with toner, wipe it away with thewiper cloth supplied with the toner kit.Characters out of position Check the file or program.Check whether the problem is being caused by a PRESCRIBEcommand error. If the problem occurs only with a specific file orprogram, the most likely cause is an error in a parameter to acommand or command syntax.Printed Results Corrective Action