2–27
Principles of Operation
HAMMER
+5V
DRIVER (H/D)
REGULATOR
HAMMER
DISABLE
OUTPUT
CIRCUITS
DARLINGTON DRIVERS
(33)
DATA LATCHES
(33)
SHIFT REGISTER
(33)
CK
–12V
t
t
t t
Q
Q
ISOLATORS
OPTO–
+12V RTN
+36V
HMC
NHCK
HRS
COM IN
NHSC
HRS
COM IN
NHSC
OE
HCK
5HL
SD
–12V
NUD
t
t
+36V
OD
D
Q
CK
ISOLATOR
OPTO–
COM OUT
+5V
FAULT
MONITOR #1
TEST TIMING
FAULT
MONITOR #2
OD
Figure 2–19. Hammer Driver Block Diagram
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...