Sensor and ink jet recorder including same

Details Sensor and ink jet recorder including same Sensor and ink jet recorder including same

1998-07-17

2000-04-04

Hilten, John S.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 23, 116303, B41J 2165, G01D 1322

Patent

active

060452110

ABSTRACT:
A detector detects the presence of a roll of a strip-like material within a cassette in a maintenance unit used in an ink-jet printer. The detector has a first movable part to rotate and press a switch when the cassette is not positioned at the predetermined mounting position, and a second movable part to rotate and press the switch when less than a predetermined amount of the strip resides in the cassette. The detector, based on the pressed state of the switch, detects whether the maintenance operation can be started. The detector has a pair of pivot arms which each have a similar shaped portion to the other so as to fold into each other and which project into the interior of the cassette when no roll resides in the cassette. When there is a roll inside the cassette, one arm comes in contact with the roll so that the arms retract from the cassette by folding the similar shaped portions into each other.

REFERENCES:
patent: 5223860 (1993-06-01), Loofbourow et al.
patent: 5243485 (1993-09-01), Weiley

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