206
6.2.6
Transmit Motor Control Circuit
The transmit motor is a PM type, two-phase bi-polar motor. The stepping signal and chopping current
control signals (pTAPH, pTBPH, pTA10, pTA11, pTB10 and pTB11) are sent to the chopper drive circuit,
comprised of IC36, IC37 and its peripheral circuitry, from IC3 SHINE output port. The motor is powered by
+24 VDC and is driven by a 1/2-phase excitation, and greater step division is provided by controlling the
phase circuit in steps (micro-step control).
Tx Stepper
Motor
Tx Motor Driver Circuit Block Diagram
SHINE
IC3
Motor
Driver
IC36
+24V
Motor
Driver
IC37
+24V
R371
R370
Summary of Contents for Facsimile UF-590
Page 17: ...17 1 4 Control Panel For USA and Canada UF 790 UF 780 790 780 ...
Page 18: ...18 For Other Destinations UF 590 UF 580 ...
Page 27: ...27 10 Remove 2 P6A Bushings 316 11 Remove the Eject Roller 303 10 11 ...
Page 33: ...33 11 Remove 2 Screws 4N 12 Remove the Paper Feed Rollers 518 11 12 ...
Page 294: ...294 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 2 4 Model UF 580 590 780 790 ...
Page 295: ...295 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 3 4 Model UF 580 590 780 790 ...
Page 296: ...296 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 4 4 Model UF 580 590 780 790 ...
Page 297: ...297 4 3 2 1 D C B A 1 2 3 4 Drawing Name LVPS 1 1 Model UF 580 590 780 790 ...
Page 298: ...DZZSM00158 ...