Browse Prior Art Database

Sensor Cleaner with Cover Drop Protect Function

IP.com Disclosure Number: IPCOM000116542D
Original Publication Date: 1995-Sep-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Matsubayashi, M: AUTHOR [+2]

Abstract

Disclosed is a device of a cleaning optical sensor which is used in Point Of Sale (POS) printer or other office equipment. In case of POS printer, operator open/closes its cover to exchange roll papers one or two times a day. By this cover close motion, air tank is pressed and air flow blows off dust from sensor surface. On the other hand, cover receives load from air tank, so cover drops slowly. Then, this device functions as the sensor cleaner and the cover drops protection at the same time.

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Sensor Cleaner with Cover Drop Protect Function

      Disclosed is a device of a cleaning optical sensor which is
used in Point Of Sale (POS) printer or other office equipment.  In
case of POS printer, operator open/closes its cover to exchange roll
papers one or two times a day.  By this cover close motion, air tank
is pressed and air flow blows off dust from sensor surface.  On the
other hand, cover receives load from air tank, so cover drops slowly.
Then, this device functions as the sensor cleaner and the cover drops
protection at the same time.

      Fig. 1 shows this device composition.  When the cover is
closed, the air tank made of elastic material, like rubber, is
pressed.  The nozzle which is connected to the tank is set beside the
sensor.  When the cover is opened, the air tank breathes air by its
elasticity (Fig. 2).  Closing cover, the tank is pressed and air flow
blows off dust from the sensor surface.  The cover can not drop
rapidly because the air tank supports the cover (Fig. 3).

      Using this device, the sensor cleaning is automatically done by
daily cover open/close operation and no additional mechanism for the
cover drop protection is required.  This device is applicable for not
only sensors but also other mechanical portion like pivot of lever or
sliding surface where dust will cause some trouble.  Furthermore,
nozzle/tube is so flexible that this device is applicable in narrow
spaces.