Lexmark C782 Service Manual - Page 363
Preventive maintenance, Safety inspection guide, Scheduled maintenance, Standard fusers
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5061 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 Scheduled maintenance The operator panel displays 80 Fuser Maintenance and 83 ITU Maintenance for scheduled maintenance. 80 Fuser Maintenance is displayed at 120,000 copies for C78x models, and at 200,000 copies for C77x models indicating the fuser assembly needs to be replaced to maintain the print quality and reliability of the printer. The parts are available as a maintenance kit with the following part numbers: Standard fusers Description Maintenance kit 115 V fuser Maintenance kit 220 V fuser Maintenance kit 100 V fuser Part number Models 1xx/3xx (C77x) 40X1859 40X1860 40X1861 Models 2xx/4xx (C78x) 40X1831 40X1832 40X1833 83 ITU Maintenance is displayed at each 120,000 copies when the ITU Assembly needs to be replaced to maintain the print quality and reliability of the printer. There are two assemblies, ITU assembly and Second Transfer Roll, in a maintenance kit. Both should be replaced at the same time. The parts are available as a maintenance kits: ITU Maintenance kits Description ITU Maintenance kit for 1xx and 3xx models ITU Maintenance kit for 2xx and 4xx models Part number 40X1788 40X1826 After replacing the kit, the fuser maintenance count must be reset to zero to clear the maintenance message. 84 Oiler Nearly Exhausted is displayed at each 100,000 copies when the Web Oiler Assembly is nearly exhausted. Go to "Web Oiler Assembly" on page 7-9 for part number. Preventive maintenance 6-1