Flora Digital Printing System
Model LJ320P
Copyright 2011@ Shenzhen Runtianzhi Image Technology Co.,Ltd. By Victor Xu
~20~
4.3 Printing Control System
4.3.1 Printing Control Board (116-0401-132)
The print head control board controls and drives the jetting parameters of the print heads.（as
below）. Functions of the board are as follow：
Receiving optical signal from USB Board ,change it into electric signal and separate
the image data & control order from the signal ；as the same time，combine level
signal , negative signal , raster signal etc., then change them into optical signal and
send them to USB Board
Supplying power & clock to print head to drive it work
Detecting automatically: detecting level of ink tank is full or not ; detecting negative
pressure is in the range of setting or not ; reading raster signal
Level indicator:
When the tank is full, the responsible indicator will turn on!
Fig.4.3.1-1 Printing Control Board
DC 24V
USB J6
Level Sensor
USB J11
NP Sensor
Raster
Reader
HPB J2
Y1 Y2M2M1
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