02/20003-4 DocuPrint N2125Image Quality Defect DefinitionsInitial IssueImage Quality Repair Analysis ProceduresImage Quality Defect DefinitionsThe System Controller Test Print (Figure 1) is used to evaluate each of the print quality param-eters. Each area of the test pattern is used for a print quality parameter. The areas and theprint quality parameters are listed in Image Quality Checkout.Table 1 Image Quality Defect DefinitionsDefect Definitions Go To:LIGHT PRINTS: The overall image density is too light. IQ RAP 1BLANK PRINTS: Prints with no visible image. IQ RAP 2SPOTS: There are spots of toner on the page. IQ RAP 3HORIZONTAL DELETIONS: There are areas of the image that are extremelylight or missing entirely. These areas run horizontally across the page in thedirection of scanning.IQ RAP 4VERTICAL DELETIONS: There are areas of the image that are extremelylight or missing entirely. These areas run vertically along the page in thedirection of paper movement.IQ RAP 5SPOT DELETIONS: Solid areas are marked with irregular white areas. IQ RAP 6VERTICAL STREAKS: Extraneous dark lines/bands in the process direction. IQ RAP 7HORIZONTAL STREAKS: Extraneous dark lines/bands in the direction ofscan.IQ RAP 8RESIDUAL IMAGES: The image from a previous print, which was notremoved during the cleaning process, has been developed on the currentprint.IQ RAP 9BLACK PRINTS: The print is completely covered with toner and has no visi-ble image.IQ RAP 10BACKGROUND: Uniform toner contamination in non image areas. Refer tothe Background specification.IQ RAP 11UNEVEN DENSITY: The text/line darkness and solid area density image var-ies across the print.IQ RAP 12SKEWED IMAGE: Angular displacement of the image from its intended posi-tion on the print. Refer to the specification.IQ RAP 13DAMAGED PRINTS: Creases, wrinkles, excessive curl, cuts, folds orembossed marks.IQ RAP 14REGISTRATION (lead edge to trail edge): Displacement of the image, in theprocess direction, from its intended position on the print.(inboard to outboard): Displacement of the image, in the direction of scan,from its intended position on the print.IQ RAP 15SKIPS / SMEARS: Skip-Loss or stretching of the image in bands across theprocess direction.Smear-The distortion of the image in bands across the process direction thatcause it to appear to be blurred or compressed.IQ RAP 16UNFUSED IMAGE: Part of or all of the image is unfused. Refer to the specifi-cation.IQ RAP 17RESOLUTION: At 600 DPI, the two pixel lines and halftone patches cannotbe reproduced clearly on the print.IQ RAP 18
