Datasheet

96 Zebra P630i & P640i Card Printer Service Manual 980006-001 Rev. A
Theory of Operation
Sensors and Interlock Switches
3.3 Sensors and Interlock Switches
These are of several different types of sensors and interlock switches, but they have one thing
in common - they tell the printer’s control logic what’s happening and where, enabling it to
continue with the process or, if a malfunction occurs, to light the appropriate indicator light
and report a specific error condition on the host computer screen.
The figure below shows the relative locations of the sensors that track card and ribbon position
and movement.
Infeed Sensor
& Laminator
Sensor PCBA
Card
Laminator
Exit
Sensor
Flip
Station
Sensor
Cleaning
Encoder
Sensor
Color
Sensor
Carriage
Home
Sensor
Near
Hopper
Switch
Card
Hopper
Exit
Sensor
Feeder
Cover
Interlock
Printhead
Motion
Sensor
Ribbon
Motion
Sensor
(Lower Laminator
Present on P640i Only)
Main
Cover
Interlock
Near
Hopper
Switch