Patent ID: 6575543
Filing Date: 2003-06-10
Classification: B41J

Abstract:
An apparatus to adjust a head gap of an ink-jet printer, comprising:a main frame; a main shaft rotatably disposed at the main frame and having an eccentric supporting shaft; a head assembly movably disposed on the main shaft and having a head to provide ink to a printing medium to print an image thereon; a motor to provide a driving force to rotate the main shaft; a worm wheel connected to the eccentric supporting shaft to rotate in association with the eccentric supporting shaft; a rotation angle control unit to restrict a rotation angle of the worm wheel to restrict a range of the head gap, the head gap being between the head and the printing medium; and a clutch unit to selectively transmit the driving force of the motor to the worm wheel and to prevent a transmission of the driving force from the motor to the worm wheel when the worm wheel is restricted by the rotation angle control unit.