REV.-A
Table 2-5 lists the functions of the printer’s main components and circuits. The CPU converts the print
data sent from the host computer to image data (the print image). Then the printer loads the image data
to RAM. The printer processes each line of data sequentially. The CPU transfers the print data to the
printhead drive circuit and sends the printhead
of the pulse corresponds to the
printhead drive
printhead drive signal.
drive pulse to the
printhead drive circuit, The length
voltage. Then the
printhead
drive circuit outputs the
ti/A
RAM
Print
Host
Data
Data Input
Input
Computer
Buffer
*
%-
Print Data
---------
Convertor
Image
Image Data
Buffer
Transfer
+35V
Line
I
t
CPU
El-
Data line
+ +
Data Latch
and
Data Output
I
STK-6022B
—
~
Printhead
Figure 2-18. Data Flow
2-15
To Next Page
Loading...
