公开(公告)号：WO02096651A3

公开(公告)日：2003-07-10

申请号：PCT/US0215546

申请日：2002-05-16

Applicant: POLAROID CORP

Inventor： BOUCHARD ALAIN ,  BUSCH BRIAN D ,  BYBELL DANIEL P ,  DEYOUNG ANEMARIE ,  LAWRENCE SANDRA B ,  REISCH MICHAEL L ,  SAQUIB SUHAIL S ,  SCHUH DANA F ,  TELFER STEPHEN J ,  THORNTON JAY E ,  VETTERLING WILLIAM T ,  VIOLA MICHAEL S

IPC: B41J2/35 ,  B41J2/325 ,  B41J2/36 ,  B41J2/525 ,  G07F17/26 ,  H04N1/00

CPC classification number: B41J2/3555 ,  B41J2/325 ,  B41J2/36 ,  G07F17/26 ,  H04N1/00132 ,  H04N1/00167 ,  H04N1/00169 ,  H04N1/00188

Abstract: A thermal printer is disclosed which includes a plurality of thermal print heads, each of the plurality of thermal print heads being operable to print a distinct one of a plurality of colors. The plurality of thermal print heads may print output at a plurality of spatial resolutions. The thermal printer may include dot size varying perceived levels of color printed by the thermal printer by varying sizes of dots printed by the plurality of thermal print heads. The printer may perform various image processing steps on an image to be printed, such as tone scale adjustment, thermal history control, and common mode voltage correction, to improve the perceived quality of the printed image. The thermal printer may be incorporated into a digital photo-printing vending machine for printing images provided by a customer.

Abstract translation: 公开了一种热敏打印机，其包括多个热打印头，多个热打印头中的每一个可操作以打印多种颜色中的不同的一种。 多个热敏打印头可以以多个空间分辨率打印输出。 热敏打印机可以包括通过改变由多个热打印头印刷的点的大小而由热敏打印机印刷的颜色变化的感觉色彩等级。 打印机可以对要打印的图像执行各种图像处理步骤，例如色阶调节，热历史控制和共模电压校正，以提高打印图像的感知质量。 热敏打印机可以结合到用于打印客户提供的图像的数字照片打印自动售货机中。