Mechanism Driver Pcba - Printronix P9012 Maintenance Manual

RIB MOV
GUIDES
RIB TEN
MCU
PCBA
PF1/PF2
NRUN1/NRUN2
PMD
NPAPO
NRIBFLT
FILE
NPLAO
DCMOD
NUPTOSPD
MPU PULSE
MPU
SHAPER
+ _
12 VDC
+ _
12VDC
POWER
IN
SUPPLY
+5 VDC
POWER
+5V IN
SUPPLY
POWER UP
MASTER
RESET
CLEAR

MECHANISM DRIVER PCBA

Figure 2–17. Mechanism Driver Block Diagram
2–24
+36V
RIBBON
SWR
DC MOTORS
SWL
DRIVER
PAPER FEED
STEPPER MOTOR
DRIVERS
+63VDC POWER
+36V
SUPPLY
FAULT
DETECT
DC MOTOR
DRIVER
–12V +36V
MPU +
MPU –
+36VDC
+36V RTN
BRKRTRP
+5VDC
PMD
AMPLIFIER
DRIVE
SENSE
+58 VDC
REGULATOR
BLOWER
DRIVER
–12V +36V
BREAKER
TRIP
GND +36 –12
Principles of Operation
LEFT RIB. MTR
RIGHT RIB. MTR.
PAPER FEED
MOTOR
PAPER
MOTION DETECT
PAPER TRANSPORT
RIBBON DRIVE
SHUTTLE MECHANICS
DC SHUTTLE
MOTOR
MAGNETIC
SENSOR
BLOWER
AC POWER
CIRCUIT
BREAKER