Datasheet

Theory of Operation
Block Diagram
980006-001 Rev. A Zebra P630i & P640i Card Printer Service Manual 99
3.5 Block Diagram
Most of the circuitry in the printer is on the CPU PCBA. Since the CPU PCBA is not a
serviceable unit, circuit analysis to the component level is pointless.
Below is a block diagram of the functional circuits of the printer; the block diagram also shows
how signals are passed to and from the
CPU PCBA to the rest of the printer.
Sensor
Calibration
Circuitry
Ribbon and
Card Transport
Motors
Motor
Drivers
A/D Circuitry
for Optical
Sensors
Optical
Sensors
Memory
for CPU
Clock
CPU
Power
Control
AC Voltage
Power
Supply
24 VDC
P6XXi CPU PCBA
Printhead
Printhead
Circuitry
Card Flipper
Control
Circuitry
Card Flipper
Laminator
Control
Circuitry
Upper
Laminator
Lower
Laminator
(P640i only)
(Smart Card Option Components)
Smart Card
Encoder
Circuitry
Contact or
Contactless
Smart Card
Encoder
(Barcode Reader Option Components)
Barcode
Reader
Barcode Reader
Circuitry
(Mag Encoder Option Components)
Magnetic
Encoder
Magnetic Encoder
Circuitry
(ID Key Option Components)
ID Key
ID Key
Circuitry
Panel LED
and Panel
Button
Circuitry
Panel
Buttons
Panel
LEDs
USB
Circuitry
USB Port
Ethernet
Connection
Circuitry
(Ethernet
Option Components)
Ribbon RFID
Circuitry
RFID
Transponder
RFID Tag in
Ribbon Core