43471801TH Rev.1 7 /
Oki Data CONFIDENTIAL
2. OPERATION
2.1 Summary
The main configuration of this printer is the print mechanism unit and print control unit.
The print mechanism unit can be divided broadly into the print head, space system, paper-feed system,
and ribbon-feed system. The operation of each item is listed below.
(1) Print head ........................... Prints with the 9 wire-dot magnet. The dot patterns are configured
in the print control unit.
(2) Space system ..................... The stepping motor moves the carriage and performs spacing,
tab, and carriage return.
(3) Paper-feed system .............. Paper is feed by the stepping motor.
(4) Ribbon-feed system ............ Ribbon is feed by obtaining drive force from the stepping motor
just as in the space system.
(5) Print control unit .................. Controls the interface and mechanism with one MSM67 × 640
microprocessor (µCPU).
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