Lexmark E310 Service Manual - Page 52
end of life., Poor development or poorly charged toner particles cause excessive
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4044-XXX Heavy background Poor development or poorly charged toner particles cause excessive background. This is more noticeable as the toner cartridge nears end of life. FRU Models E310 & E12 Toner Cartridge Model E310 HVPS Contacts HVPS Board Engine/LVPS Board Model E312 HVPS Contacts HVPS Board Engine Board Action Make sure toner cartridge is correctly installed and the high voltage contacts are clean. If the cartridge is installed correctly, try a new cartridge. Check the contacts for correct installation and contamination where contact is made with the toner cartridge and HVPS Board. Clean as necessary. If this does not correct the problem, replace the following FRUs one at a time in the order shown: HVPS Board Engine/LVPS Board Check the contacts for correct installation and contamination where contact is made with the toner cartridge and HVPS Board. Clean as necessary. If this does not correct the problem, replace the following FRUs one at a time in the order shown: HVPS Board Engine Board 2-30 Service Manual