In the Table 2-1, if the control sequence is executed in incremental order, the carriage motor rotates
clockwise (CW). (The CR moves from 1st column to 80th column.)
Signals output from ports P105, P106, and P107 of the CPU determine the reference trip current level
used by the motor driver IC for drive current control. Table 2-2 lists the connection of the output
signals and the reference trip current levels.
Table 2-2. Connection between References and Output Signals
Reference
(Trip Current)
P105
P106
P107
Duty Change
601 mA
OFF
OFF
OFF
1, 2/3, 1/3, 0
481 mA
ON
OFF
OFF
As above
444 mA
OFF
ON
OFF
As above
403 mA
OFF
OFF
ON
As above
375 mA
ON
ON
OFF
As above
345 mA
ON
OFF
ON
As above
326 mA
OFF
ON
ON
As above
110 mA
OFF
ON
ON
Fixed to 1/3
EPSON Stylus COLOR 200 / EPSON Stylus 200
Operating Principles
Rev. A
2-3
