Invention Grant
- Patent Title: Thermal printer
- Patent Title (中): 热敏打印机
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Application No.: US12315633Application Date: 2008-12-04
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Publication No.: US08111274B2Publication Date: 2012-02-07
- Inventor: Kimitaka Hirai , Akihiko Ito
- Applicant: Kimitaka Hirai , Akihiko Ito
- Applicant Address: JP
- Assignee: Seiko Instruments Inc.
- Current Assignee: Seiko Instruments Inc.
- Current Assignee Address: JP
- Agency: Adams & Wilks
- Priority: JP2007-323595 20071214
- Main IPC: B41J2/335
- IPC: B41J2/335

Abstract:
A thermal printer has a thermal head pivotally mounted on a main body frame to pivot toward and away from a platen roller. The platen roller has shaft bearings at opposite ends thereof that are removably inserted in two spaced-apart opposed slots formed in the main body frame to rotatably support the platen roller. First springs bias a pivotal lock arm to a locked position to prevent removal of the shaft bearings from the slots, and second springs bias the thermal head toward the platen roller. Manual pivotal movement of the lock arm to an unlocked position permits removal of the shaft bearings from the shaft. The biasing directions of the first and second springs are parallel, which reduces the stroke distance of the first springs resulting in size reduction of the thermal printer.
Public/Granted literature
- US20090153640A1 Thermal printer Public/Granted day:2009-06-18
Information query
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