Winding – tensioning – or guiding – Unwinding – With detector – indicator – or control
Reexamination Certificate
2011-07-26
2011-07-26
Rivera, William A (Department: 3654)
Winding, tensioning, or guiding
Unwinding
With detector, indicator, or control
C242S566000, C242S413300
Reexamination Certificate
active
07984871
ABSTRACT:
A printing apparatus and a roll paper transportation device which reduces the space needed to accommodate a roll paper buffer mechanism unit and paper detection unit, and to reduce poor electrical contact in the contact part of the paper detection unit. The roll paper transportation device has a paper detection unit8for detecting the presence of roll paper5, and a buffer mechanism unit7for absorbing variation in roll paper tension in order to keep the roll paper5tension less than or equal to a predetermined level. The buffer mechanism unit7forms a housing unit16for housing at least part of the paper detection unit8in a common area disposed in the buffer mechanism unit7enabling the paper detection unit8and buffer unit7to operate in unison without interfering with the operation of the other.
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Gabrik Michael T.
Rivera William A
Seiko Epson Corporation
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