Lexmark T620 Service Manual - Page 142

4069-5XX/7XX FRU 7 Lines spaced 49.74 mm (1.958 inch) apart 8 Lines spaced 51.02 mm (2.009 inch) apart 9 Lines spaced 52.23 mm (2.056 inch) apart 10 Lines spaced 76.53 mm (3.013 inch) apart 11 Lines spaced 95.66 mm (3.766 inch) apart 12 Lines spaced 99.49 mm (3.917 inch) apart 13 Lines spaced 114.79 mm (4.519 inch) apart Action Replace the FRUs in the following order: redrive assembly fuser assembly Replace the transfer roll. Replace the redrive assembly. Replace the FRUs in the following order: alignment assembly main drive gearbox assembly Replace the FRUs in the following order: toner cartridge main drive gearbox assembly Replace the redrive assembly. Replace the alignment assembly. Print Quality - Background Service Tip: Some background problems can be caused by rough papers, non-Lexmark toner cartridges or if the media texture is set to the rough setting. Some slick or coated papers may also cause background. Some problems occur with printers that run a large amount of graphics in a humid environment. The customer may try to improve the print quality by increasing the transfer setting. Check the charge roll to make sure it is not at the end of life. 2-114 Service Manual