HP d640 HP D640 High-Volume Printer - User Manual (Printer and Accessories), C - Page 205

Warning Messages Warning Messages The following warning messages indicate conditions that require operator intervention, such as when the output tray fills up with paper, or when a particular consumable has reached the end of its life. The "end life" message remains until you replace the consumable. Always replace the consumable as soon as possible to maintain the best print quality. Caution If you ignore the "Toner low" message, eventually the printer will shut down with the "Toner empty" message to prevent mechanical damage. Caution If you ignore the "Developer end-life" message, eventually the printer will shut down with the "Developer end-life/Change developer at once" message to prevent mechanical damage. Table A-2 Warning messages Message Output tray full Paper-size mismatch Toner low Developer end-life Drum end-life (drum area blinks) Fuser end-life (fuser area blinks) Tray 1 rollers end-life Tray 2 rollers end-life Tray 3 rollers end-life HCI rollers end-life Explanation Action The printer's output tray is full. Remove paper from tray. The requested paper size is not available. Load correct paper size. The supply of toner in the toner hopper is low. Add toner. See "Replacing Developer" on page 4-9. The developer has reached the end Replace developer. See of its useful life and needs "Discharging Developer" on replacement. page 4-9. The drum has reached the end of its useful life and needs replacement. See "Drum Kit - Replacing Drum and Transfer Assembly" on page 4-18. The fuser has reached the end of its useful life and needs replacement. See "Removing the Fuser" on page 4-30. The indicated pick roller has reached the end of its useful life and needs replacement. See "Printer Pick Roller Kit Replacing the Tray Pick Rollers" on page 4-33. The HCI pick rollers have reached the end of its useful life and need replacement. See "HCI Pick Roller Kit Replacing the HCI Pick Rollers" on page 4-42. A-4 Printer Messages