Browse Prior Art Database

Head Tilt Mechanism

IP.com Disclosure Number: IPCOM000116459D
Original Publication Date: 1995-Sep-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Nishimoto, A: AUTHOR [+2]

Abstract

Disclosed is a device of print head tilting mechanism for the dot impact printer which can change the number of vertical dots of character font. For example, 9 pin x 2 parallel line head can print 9 pin font characters with high speed. Tilting the head slightly, it can function as 18 pin x 1 line head which can print finer character.

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Head Tilt Mechanism

      Disclosed is a device of print head tilting mechanism for the
dot impact printer which can change the number of vertical dots of
character font.  For example, 9 pin x 2 parallel line head can print
9 pin font characters with high speed.  Tilting the head slightly, it
can function as 18 pin x 1 line head which can print finer character.

      The Figure shows this device composition:  Head is fixed to
Saddle; Saddle is connected to Carriage with Pin and Saddle rotatable
around the Pin.  Motor moves the Carriage with a Belt.  The Head is
pulled by Springs toward the Carriage, and the Saddle is stable in
contact with the Carriage, as shown in Section A-A.  The Stopper is
fixed on both side frames.

      In printing, the Carriage moves so that the Saddle doesn't
touch the Stopper.  When the font dots need to be changed (9 pin <-->
18 pin), the Carriage goes ahead in B direction, and the Stopper
pushes Saddle, and Saddle rotates in C direction.  Then, the Saddle
settles down after 30º rotation as shown in the Figure so the
Head tilts 30º.  When reverse tilting is required, the same
operation is done at the opposite side frame.

      In this device, no additional actuator like solenoid or motor
is required to tilt the Head.   Therefore, this device accomplishes
Head tilt mechanism with the lowest cost.