Oki IP-6620 Maintenance Manual page 552

8.9 Engine Control Firmware
8.9.1 Function block
The following block diagram shows the USB/engine firmware functions.
USB
interface
Maintenance
SIO
Operation
Operation panel
USB driver
Maintenance
driver
Mechanical
control driver
Flash driver
Flash memory
Various actuators
OKI Data Infotech Corporation CONFIDENTIAL
panel
Error monitoring
driver task
Print task
Setup task
Ink IC chip
driver
Ink IC chip
Chapter 8 Operation Mechanism
Thermistor
Temperature
correction task
Sensor
monitoring task
Various sensors
8-31