2–22
Principles of Operation
Mechanism Driver PCBA
(Figure 2–16 and Figure 2–17)
The mechanism driver PCBA contains those circuits required to drive the
various motors of the printer mechanism. These driver circuits are under
control of the MCU. The mechanism driver PCBA also produces, by use of
switching regulators, the
±
12 V and +5 VDC required by the MCU and
DCU. These voltages are generated from the +36 V output of the power
supply. A 63 VDC power supply on the board is used in the paper feed motor
circuit and the shuttle motor circuit. Fault detect circuits monitor error
indications and sends a fault message flag to the MCU.
Summary of Contents for P9012
Page 1: ...P N 132305 001 Rev E P9012 Multifunction Line Printer...
Page 49: ...2 31 Principles of Operation Power Supply PCBAs 1 3 SHORT OPEN Figure 2 21 Power Supply PCBA...
Page 58: ...2 40 Principles of Operation...
Page 84: ...4 18 Troubleshooting...
Page 118: ...5 34 Alignments and Adjustments...
Page 203: ...6 85 Replacement Procedures This page intentionally left blank...
Page 214: ...6 96 Replacement Procedures...
Page 236: ...A 22 Power Paper Stacker Maintenance...
Page 246: ...D 2 Torque Table...
Page 254: ...Index 6...
Page 255: ......
Page 256: ...132305 001 Rev E...