2011年12月23日,全球领先的数字办公解决方案提供商——理光(中国)投资有限公司(以下简称:理光)携手神州数码控股有限公司(以下简称:神州数码)于北京共同举行了理光PJ系列投影仪媒体发布会暨理光(中国)-神州数码签约仪式。理光(中国)投 On December 23, 2011, Ricoh (China) Investment Co., Ltd. (hereinafter referred to as Ricoh), the world’s leading provider of digital office solutions, joined hands with Digital China Holdings Ltd. (hereinafter referred to as Digital China) PJ series projector media conference and Ricoh (China) - Digital Signing Ceremony. Ricoh (China) cast