Lexmark C720 Service Manual - Page 94

5024-001 Message Tray 1 Empty Tray 2 Empty 30 Color Toner Missing 34 Wrong Paper Size in Tray x Description Action An input tray is out of media. Check the tray, the cassette empty sensor, and connectors DCN8 and DCN4 on the ID01 board. Tray 1-PEU Tray 2-PEL Replace as necessary. Replace the IDO1 P.W.B. board if necessary. Replace the printer main engine (MCTL P.W.B.) board, if necessary. The specified cartridge (Cyan, Magenta, Yellow, or Black) is not installed in the printer. Insert the cartridge and close the cartridge cover to clear the message. Check the toner key sensor (TNK) and connector DCN15 on the IDO1 P.W.B. board and replace, if necessary. Replace the IDO1 P.W.B. board if necessary. Replace the printer main engine (MCTL P.W.B.) board, if necessary. Install correct paper size. Check paper size detection sensor and connectors DCN6 and DCN8 on the IDO1 P.W.B. board. Tray 1-P.W.B.-S1 (PSU) Tray 2-PSL Replace if necessary. Replace the IDO1 P.W.B. board if necessary. Replace the printer main engine (MCTL P.W.B.) board, if necessary. 2-14 Service Manual