Lexmark C750 Service Manual - Page 188

5060-00x Rollers Component description Metering rolls Color charge roll short Component Reference Edge C, M, or Y cart Planes affected All C, M and Y Defect period mm 47.0 101.0 inches 1.85 3.98 NIP shock NIP distances mm Y-C-M-K cartridge spacing K to second transfer roll M to second transfer roll C to second transfer roll Y to second transfer roll Meter 1 to second transfer Meter 2 to second transfer Meter 3 to second transfer Meter 4 to second transfer Second transfer to fuser Fuser nip to first redrive Fuser nip to exit sensor Fuser nip to exit tray nip 101.0 144.6 245.6 346.6 447.6 164.8 126.4 86.4 51.4 319.4 50.0 58.2 420.3 Defect period Inches 3.98 5.69 9.67 13.65 17.62 6.49 4.98 3.40 2.02 12.57 1.97 2.29 16.55 Printing the chart The printer has an internal copy of the defect locator chart under the Help Menu. Verify the proper image size by measuring any of the marks on the chart and comparing them to the corresponding measurement in the chart. Use Step 2 if adjustments are needed. Copying the chart Use the provided transparent sheet if at all possible. If you need to make a copy, be aware that fax machines, digital scanners, and xerographic copiers can distort images. Charts should be printed using the transparent copy provided in the service manual. In order to maintain the accuracy of the edge rulers, the following steps should be heeded when printing a copy of the Defect Location Chart. 1. When printing this document, make sure "Fit to page" is not selected. 2. Measure the distance between the Reference line and the 110 mm Calibration Mark to verify that it is correct. If the distance is inaccurate, the bottom registration margin setting can be adjusted to correct the discrepancy. Increasing the bottom margin value stretches the image, reducing it shrinks the image. Original margin settings should be noted in the case that these changes adversely effect the print quality or registration when printing normal documents. 3-4 Service Manual