Lexmark X658DFE Service Manual - Page 531

7462 6. Preventive maintenance This chapter describes procedures for printer preventive maintenance. Follow these recommendations to help prevent problems and maintain optimum performance. Safety inspection guide The purpose of this inspection guide is to aid you in identifying unsafe conditions. If any unsafe conditions exist, find out how serious the hazard could be and if you can continue before you correct the hazard. Check the following items: • Damaged, missing, or altered parts, especially in the area of the On/Off switch and the power supply • Damaged, missing, or altered covers, especially in the area of the top cover and the power supply cover • Possible safety exposure from any non-Lexmark attachments Lubrication specifications Lubricate only when parts are replaced or as needed, not on a scheduled basis. Use of lubricants other than those specified can cause premature failure. Some unauthorized lubricants may chemically attack polycarbonate parts. Use IBM no. 10 oil, P/N 1280443 (Approved equivalents: Mobil DTE27, Shell Tellus 100, Fuchs Renolin MR30), IBM no. 23 grease (Approved equivalent Shell Darina 1), and grease, P/N 99A0394 to lubricate appropriate areas. Use Nyogel type 774 to lubricate the Fuser Drive Assembly and Nyogel 744 to lubricate the ITU and Cartridge Drive assemblies. Scheduled maintenance Maintenance kit The operator panel displays the message 80 Scheduled Maintenance at each 300K page count interval. It is necessary to replace the fuser assembly, transfer roller, charge roll, and pick tires at this interval to maintain the print quality and reliability of the printer. The parts are available as a maintenance kit with the following part numbers: Maintenance kits Description Printer maintenance kit (100V) Printer maintenance kit (110V) Printer maintenance kit (220V) Printer maintenance kit (100V type 2 fuser) Printer maintenance kit (110V type 2 fuser) Printer maintenance kit (220V type 2 fuser) ADF maintenance kit Part number 40X4723 40X4724 40X4765 40X4766 40X4767 40X4768 40X4769 After replacing the kit, the maintenance count must be reset to zero to clear the "80 Scheduled Maintenance" message. See "Reset Maintenance Counter" on page A-29. Preventive maintenance 6-1