Victor Xu Page 30 12 Jan. 2011
Copyright 2011 © Shenzhen Runtianzhi Image Technology, Co., Ltd.
http://www.floradigital.com
4.4.3 Z-axis (Auto height adjusting system)
In order for the printer to print seamlessly on different kinds of media, the carriage height
should adjust automatically to whatever media thickness it should print upon. For this specific
printer model it is equipped with a carriage that could automatically adjust its height depending on
the media thickness to be printed upon. The user can choose whether to print using the default
carriage gap between media of 2.0 mm or opt to increase the gap up to 5mm.
The assembly uses a solenoid activated mechanical touch sensor to sense the media height.
This mechanical sensor protrudes downward from the carriage assembly during media height test.
The system also uses a raster strip and encoder to determine the accurate height adjustment from
default height settings.
4.4.3.1 Stepper driver & motor
Carriage height adjuster stepper motor is responsible in driving the carriage up/down
movement. A height adjuster knob is provided in case the carriage needs to be move up/down
manually for some reason.
Left home position switch & back limited switch
Right home position switch&back limited switch
Driver Pack DIP-switch Setting
Top Front View of the Carriage
Stepper motor
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