World’s First Charge Roller System Implemented in High-End Digital Commercial Printing Engine
The HP Indigo presses dominate the digital commercial printing market with more than 50% market share using Liquid Electrophotography technology with superb print quality, high productivity and wide paper gamut. The new HP Indigo 7000 sheet fed Digital Press and the HP Indigo WS6000 industrial press, both introduced in Drupa08, run at a marking speed of 2.15 m/s and places about three quarter of a billion dots on the paper per second. The new presses incorporate many breakthroughs improvements, including a new charging system featuring a charge roller. This unique charge roller unit is the first such technology use in a production digital press and supports by far the highest process speed of any offset-quality electrophotographic press. The single charge roller replaces the 6 scorotrons used in the previous generation Series II presses with improved charging uniformity and reduced cost per page for the user. The charge roller is also much easier to maintain and is a “green solution with minimal ozone generation. In this paper we discuss the multiple challenges that had to be overcome to meet or exceed the initial charge roller unit design objectives. This includes a useful life of over a half million impressions, which is far longer than other charge rollers.
Omer Gila Michael H. Lee Seongsik Chang Bill Holland Eric Hanson Boaz Tagansky Gadi Oron
Hewlett-Packard Labs, Palo Alto, CA, USA Hewlett-Packard Indigo, Rehovot, Israel
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
110-113
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）