Non-impact electronic printers have now been with us for some 25 years. The whole nonimpact market began with the IBM 3800 and Xerox 9700 electronic printers offered in the mid-1970s. The IBM 3800 was intended to be a replacement for the impact line printer, which resided in computer data centers. The Xerox 9700 was a cut sheet printer which was intended as an electronic document printer although it also replaced traditional line printers in many applications. These two fast and large electronic printers started the snowball downhill on the development of electronic printing at a fast a furious pace in the last 25 years. The web fed printers used as line printer replacements soon gave way to the much more popular and practical cut sheet printers originated by Xerox. Also, the Xerox 9700 printer operating at 300 X 300 pixels per inch, had considerably more flexibility than the IBM 3800 which began life as a 180 X 144 pixel per inch printer. The 9700 placed almost 3.5 times as many pixels per unit area as the 3800 and enabled the business and office electronic document market to begin. Now, with a plethora of new inkjets, thermal, laser electrophotographic, etc. printers, how is the user able to tell if we are just getting more devices or better ones? Clearly, image quality has improved enormously and using color in your daily work is no longer a risk to one's career. To help analyze this situation, this paper will attempt to derive and show printer technology in three easy to remember and easy to analyze approaches that should tell the user if the "new" printer is really an improvement or just an also ran. Accessories like multiple print trays, finishing options, etc. are not considered here. We will look at the electronic printer as an information provider, which after all is its real purpose.
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机译：如今，非碰撞式电子打印机已经使用了25年。整个非碰撞市场始于1970年代中期提供的IBM 3800和Xerox 9700电子打印机。 IBM 3800旨在替代冲击线打印机，后者位于计算机数据中心。 Xerox 9700是一种单页纸打印机，尽管它在许多应用中也替代了传统的行式打印机，但仍被用作电子文档打印机。在过去的25年中，这两家快速而大型的电子打印机以迅猛的步伐开始了电子打印发展的滚雪球。用作行式打印机替代品的卷筒纸式打印机很快就让位给了施乐公司更流行，更实用的单页纸打印机。同样，以每英寸300 X 300像素运行的Xerox 9700打印机具有比IBM 3800更大的灵活性，IBM 3800以每英寸180 X 144像素的打印机开始使用。 9700的单位面积像素几乎是3800的3.5倍，使商业和办公电子文档市场得以开始。现在，有了大量的新喷墨打印机，热敏打印机，激光电子照相打印机等，用户如何分辨我们是要购买更多的设备还是更好的设备？显然，图像质量已得到极大改善，并且在日常工作中使用色彩不再对个人职业构成威胁。为了帮助分析这种情况，本文将尝试以三种易于记忆和易于分析的方法来推导和展示打印机技术，这些方法应告诉用户“新”打印机是真正的改进还是仅是运行。此处不考虑多个打印托盘，整理选项等附件。我们将电子打印机视为信息提供者，这毕竟是其真正目的。
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