Printer System Block Diagram; Power Supply Assembly - Printronix p300 Maintenance Manual

BUFFER LOAD STATE
HOST
COMPUTER
DATA
PRINT STATE
PRINT
MECHANISM
PAPER
OUT
SWITCH
PAPER
MOTION
CONTROL
DETECTOR
PANEL
LOGIC
PAPER
FEED
CONTROL
PAPER OUT AND PAPER MOTION DETECTOR
2–2
SELF
TEST
INTERFACE
SPECIAL CHARACTER
DETECTION
HAMMER
RESET
TIMER
HAMMER
DRIVER
CIRCUITS
SYNCHRONIZATION
NSD
PAPER FEED STATE
PAPER
TRANSPORT
BINARY
COUNT
PRINT MECHANISM
RIBBON CONTROL
Figure 2–1. Printer System Block Diagram
PRINT
BUFFER
UNDERLINE
SAFETY
CIRCUITS
CHARACTER
GENERATION
PLOT MODE
PRINT
RIBBON
TRANSPORT
ELECTRONIC
VERTICAL
FORMAT UNIT
(EVFU)
CHANNEL
SEEK
VERTICAL
TAB
POWER
SUPPLY
ASSEMBLY
P300/P600 Principles of Operation
PAPER FEED
PLOT MODE
HALF DOT
DOT COLUMN
LOGIC
CHAR PROMS
LOGIC A
DOT
ROW PROMS
LOGIC B
EOP
PAPER FEED
CIRCUITRY
TO NEXT
DOT ROW
TO NEXT
CHARACTER LINE
TOP OF FORM
LOGIC
SKIP OVER
PERFORATIONS
HAMMER BANK AND DRIVER
PAPER FEED
CIRCUIT BREAKER
CONTROL
DECODE
PROM