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1. 发明公开

EP3363635A1 INFRARED-HEATED AIR KNIVES FOR DRYERS 无效
公开(公告)号：EP3363635A1
公开(公告)日：2018-08-22
申请号：EP18153633.5
申请日：2018-01-26
申请人： Ricoh Company, Ltd.
发明人： BOLAND, Stuart James , JOHNSON, Scott Richard , CARSON, Graham James
IPC分类号： B41F23/04 , B41J11/00
CPC分类号： B41F23/0413 , B41F23/0436 , B41J11/002 , F26B3/283 , F26B13/00 , F26B21/004 , F26B23/04
摘要： Systems and methods are provided for enhanced dryers for printing systems. One embodiment is an apparatus that includes a dryer (140) for a continuous-forms printing system. The dryer includes heating elements (220) located within an interior of the dryer that radiate infrared energy onto a web of printed media (120) as the web travels through the interior, and an air knife (230) that is interposed between the heating elements. The air knife includes a shell (510) that directly absorbs infrared energy from the heating elements and also defines a passage (540) for air to travel through the air knife onto the web (120). The shell directly absorbs infrared energy from each heating element that would otherwise overlap on the web with infrared energy from another heating element.

2. 发明授权

EP3061614B1 PRINTHEAD POSITION CONTROL 有权
公开(公告)号：EP3061614B1
公开(公告)日：2018-10-03
申请号：EP16156034.7
申请日：2016-02-17
申请人： Ricoh Company, Ltd.
发明人： JOHNSON, Scott Richard
IPC分类号： B41J2/21 , B41J2/155 , B41J25/00 , B41J2/045
CPC分类号： B41J2/04505 , B41J2/04586 , B41J2/2146 , B41J25/001
摘要： Systems and methods for printhead position control. The system comprises a controller that identifies a target distance for moving a printhead in a lateral direction to compensate for lateral shifts in a web of print media as the web travels in a continuous-forms printer in a conveyance direction. The controller also identifies a maximum distance for moving the printhead in the lateral direction based on an allowable print error in a color plane of the printer and one or more previous positions of the printhead. The control further moves the printhead for a distance that is a lesser of the maximum distance and the target distance.

3. 发明授权

EP3366480B1 CONCENTRIC DUCT SYSTEM FOR A DRYER OF A PRINTING SYSTEM 有权转让
公开(公告)号：EP3366480B1
公开(公告)日：2020-09-16
申请号：EP18155793.5
申请日：2018-02-08
申请人： Ricoh Company, Ltd.
发明人： BOLAND, Stuart James , JOHNSON, Scott Richard
IPC分类号： B41J11/00 , F26B3/04 , F26B13/14 , F26B21/04

4. 发明公开

EP3363648A1 CROSS-FLOW COOLING SYSTEMS FOR CONTINUOUS-FORM PRINT MEDIA 失效转让
公开(公告)号：EP3363648A1
公开(公告)日：2018-08-22
申请号：EP17207674.7
申请日：2017-12-15
申请人： Ricoh Company Ltd.
发明人： BOLAND, Stuart James , FERNANDO, Dilan Nirushan , JOHNSON, Scott Richard
IPC分类号： B41J29/377 , B41J15/04 , B41J11/00
CPC分类号： B41J29/377 , B41J11/0015 , B41J15/04 , B65H2301/51256
摘要： Embodiments described herein provide rollers that cool a print medium downstream of a dryer while minimizing the temperature differentials across the print medium. In some embodiments, air is directed through the interiors of different rollers in opposing directions based on a pattern to reduce the temperature differential across a width of the print medium. In other embodiments, a controller alternates a direction of the air through the interior of a roller to reduce the temperature differential across the width of the print medium.

5. 发明授权

EP3363648B1 CROSS-FLOW COOLING SYSTEMS FOR CONTINUOUS-FORM PRINT MEDIA 失效转让
公开(公告)号：EP3363648B1
公开(公告)日：2019-08-28
申请号：EP17207674.7
申请日：2017-12-15
申请人： Ricoh Company, Ltd.
发明人： BOLAND, Stuart James , FERNANDO, Dilan Nirushan , JOHNSON, Scott Richard
IPC分类号： B41J29/377 , B41J15/04 , B41J11/00

6. 发明公开

EP3366480A1 CONCENTRIC DUCT SYSTEM FOR A DRYER OF A PRINTING SYSTEM 有权转让
公开(公告)号：EP3366480A1
公开(公告)日：2018-08-29
申请号：EP18155793.5
申请日：2018-02-08
申请人： Ricoh Company Ltd.
发明人： BOLAND, Stuart James , JOHNSON, Scott Richard
IPC分类号： B41J11/00 , B41F23/04
摘要： Systems for concentric duct system (700) for a dryer of a printing system. One embodiment includes a dryer of a printing system and a duct system (700). The dryer includes web conditioners sources to condition a web of print media, intake ports (420) to supply air for the web conditioners, and outlet ports (430) to remove air for the web conditioners. The duct system (700) includes a supply hub (550) and a return hub (750). The supply hub (550) includes a tubular body (680) with a lower portion (682) and an upper portion, and supply nodes (690) around the lower portion (682). The return hub (750) includes a body around the upper portion of the supply hub (550), and return nodes (890) around the body. The duct system (700) further includes supply ducts (520) to connect the supply nodes (690) and the intake ports (420), and return ducts (720) to connect the return nodes (890) and the outlet ports (430).

7. 发明公开

EP3061614A1 PRINTHEAD POSITION CONTROL 有权
标题翻译： DRUCKKOPFPOSITIONSREGELUNG
公开(公告)号：EP3061614A1
公开(公告)日：2016-08-31
申请号：EP16156034.7
申请日：2016-02-17
申请人： Ricoh Company, Ltd.
发明人： JOHNSON, Scott Richard
IPC分类号： B41J2/21 , B41J2/155 , B41J25/00
CPC分类号： B41J2/04505 , B41J2/04586 , B41J2/2146 , B41J25/001
摘要： Systems and methods for printhead position control. The system comprises a controller that identifies a target distance for moving a printhead in a lateral direction to compensate for lateral shifts in a web of print media as the web travels in a continuous-forms printer in a conveyance direction. The controller also identifies a maximum distance for moving the printhead in the lateral direction based on an allowable print error in a color plane of the printer and one or more previous positions of the printhead. The control further moves the printhead for a distance that is a lesser of the maximum distance and the target distance.
摘要翻译：打印头位置控制的系统和方法。该系统包括控制器，该控制器识别用于在横向方向上移动打印头的目标距离，以补偿当纸幅沿输送方向在连续形式的打印机中行进时打印介质幅材的横向偏移。控制器还基于打印机的彩色平面中的允许打印错误和打印头的一个或多个先前位置，识别用于在横向方向上移动打印头的最大距离。该控制进一步移动打印头距离最远距离和目标距离较小的距离。

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