办公设备 彩色印刷品的印刷质量测量方法 第1部分：图像质量测量方法

[中文适用范围]： 本文件规定了测试方法以及测试图表，用于测量图像质量属性以及办公环境中通常使用的彩色打印件的变化。其中包括使用多功能或单功能打印机形成的数字彩色打印件。支持最大纸张尺寸为 A4 或更大的打印机适用于使用本文件中定义的测试图表进行测量。包括的图像质量属性有色彩再现、线条质量、颗粒度和斑点。考虑的变化来源是页面中的位置（页面内变化）、纸张的打印面（左右变化）、纸张的打印顺序（纸张间变化）和打印在评估色块背面的颜色（透印变化）。双面打印集由多张由多功能或单功能打印机打印的纸张组成，纸张的两个表面上都有彩色图像，这是测试方法的主要应用，用于测量该组中的图像质量变化。诸如页面内变化和页间变化等变化也适用于由多张纸组成的单面打印集，这些纸在承印物的一个表面上打印彩色图像，而另一个表面上没有图像。双面打印机和单面打印机都可用于形成打印集。当测量双面打印的图像质量时，能够自动在承印物两面上打印图像的双面打印机可用于形成双面打印。但是，需要在正面和背面打印之间手动安排承印物以形成双面打印的单面打印机不在本文档的范围内。 [外文原描述]： This document specifies test methods as well as test charts to measure the image quality attributes and those variations in colour prints typically used in office environment. Included are digital colour prints formed by using a multifunction or single function printer. Printers supporting a maximum paper size of A4 or larger are suitable for the measurements using the test charts defined in this document. The image quality attributes included are colour reproduction, line quality, graininess and mottle. The sources of variation considered are locations in a page (within-page variation), printed side in a sheet (side-to-side variation), printed order of the sheet (sheet-to-sheet variation) and colours printed on the back side of evaluated patch (show-through variation). A duplex print set, comprising several sheets which are printed by multifunction or single function printer with colour images on both surfaces of a substrate, is a main application of the test methods to measure image quality variations in the set. Variations, such as within-page variation and sheet-to-sheet variation, are also applicable for a simplex print set comprising several sheets which are printed colour images on one surface of a substrate and no image on the other surface. Both duplex and simplex printers are applicable to form a print set. When image qualities of duplex prints are measured, duplex printers which are capable to print images on both sides of substrate automatically are applicable to form duplex prints. However, simplex printers which require a manual arrangement of substrates between the front side and back side printing to form duplex prints are out of scope of this document.