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US 8,770,878 B2Granted
System and method for monitoring a web member and applying tension to the web member
AssigneeXerox Corporation
InventorsRoger G. Leighton, Yongsoon Eun
Life of this patent
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Abstract
A method for adjusting tension to a media web in a printing system includes identifying a tension level between the media web and at least one roll that is in contact with the media web. The tension level is identified with reference to a slip condition between the media web and the at least one roll. The identified tension is stored in a memory in the printing system.
Claims8
A method of adjusting operation of a printing system comprising:
- identifying a plurality of tension levels for at least one roll positioned along a media web path through the printing system, one of the tension levels being identified with reference to a slip condition occurring between and bare media alone, one of the tension levels being identified with reference to a slip condition occurring between the at least one roll and media carrying one or more levels of ink alone, and one of the tension levels being identified with reference to a slip condition occurring between the at least one roll and both bare media and media carrying at least one level of ink contacting the at least one roll simultaneously;
- and
- storing each identified tension level for the at least one roll in a memory of the printing system, each identified tension level being stored, respectively, in association with bare media alone, media carrying one or more levels of ink alone, and bare media and media carrying at least one level of ink contacting the at least one roll simultaneously.
A printing system comprising:
- at least one roll positioned proximate to a media path through the printing system along which a media web moves through the printing system, the at least one roll being configured to contact the media web and rotate in response to movement of the media web;
- a tension sensor operatively coupled to the at least one roll, the tension sensor being configured to generate a signal corresponding to a tension level applied by the at least one roll to the media web;
- a memory;
- and
- a controller operatively coupled to the tension sensor, the at least one roll, and the memory, the controller being configured:
- (a) to adjust a tension level applied to the at least one roll to identify a tension level with reference to a slip condition between the at least one roll and bare media alone,
- (b) to adjust a tension level applied to the at least one roll to identify a tension level with reference to a slip condition between the at least one roll and media carrying one or more levels of ink alone,
- (c) to adjust a tension level applied to the at least one roll to identify a tension level with reference to a slip condition between the at least one roll and both bare media and media carrying at least one level of ink that contact the at least one roll simultaneously, and
- (d) to store each identified tension level for the at least one roll in the memory in association, respectively, with the bare media alone, the media carrying one or more levels of ink alone, and both the bare media and the media carrying at least one level of ink that contacts the at least one roll simultaneously.
6 more elements
Dependencies are inferred from the claim text.