Bixolon SRP-270 User Manual

 

8-1-8 Electrical specifications 
 
8-1-8-1 The explanations of the circuit operations 

 

1) Head Carriage Step Motor 

- It rotates and moves the Dot Head by using the several gears and synchronous belt 
- Print Speed : 4.6 Line/Sec 
- This step motor is control by constant current method. 

So, current flows two red line of step motor is Max.560㎃ 

- This step motor is control by SMA7029M (Recommended) 

 

2) Paper Feed Step Motor 

- It is used when the paper is fed. 
- The characteristics of step motor is as same as head carriage step motor 

 

3) Home Sensor 

- It detects the head position 
- It decides the start point of printing 

 

4) Solenoid 

- It plays part in exchanging printing color (red → black) 

 

5) Head 

-It plays part in printing a character (Axiohn Co.) 

 
8-1-8-2 Circuit Block Diagram 

 

 

This printer consists of 5 mechanisms; 
Head feeding Mechanism. Printing Mechanism. Paper Feeding Mechanism. Detector Mechanism, Ribbon 
Mechanism. How is the external view of SMP-710/710N Impact dot matrix printer 

as shown. 

For details on the 

operating principles and handling of each of the mechanisms, refer to "Principle of Movement" in section 8-1-
10 and "Handling, Maintenance and Repair" in 8-2.