BIXOLON SRP-E770III - Thermal Printer Head and Step Motor Problem

SRP-E770III
7-5 Thermal Printer Head and Step Motor Problem
END
TPH
Problem
Yes
1. Check the Control Signal on CPU
(TPH_DI, TPH_LAT, TPH_STB1, TPH_STB2)
2. Check the Harness
3. Check the related Circuit & Pattern
No
Power Ok?
(TP58,64)
Control Signal Ok?
(TP62,65,68,69)
Yes
1. Refer to the “Power Problem”
(TPH_24V, VDD_5V)
2. Check the Harness
No
END
Step Motor Ok?
(TP82,83,85,86)
Yes
1. Check the Power VDD_24V (TP74)
2. Check the Phase Signal on CPU (TP82, TP83)
3. Check the Output Signal of U21 (TP85, TP86)
4. Check the Harness
5. Check the Step Motor and the related Circuit & Pattern
No
Step Motor
Problem
Ver. 1.01
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