Table of Contents
Advertisement
Part 4: Technical Reference
4. PRINTER ELECTRICAL SYSTEM
4.1 Overview of Printer Electrical System
The electrical system functions are handled by the logic section or power supply.
The logic section converts data from the interface into print signals or printer operation
signals, drives the BJ cartridge and motors, and monitors the sensor statuses.
The power supply unit converts the AC input power supply into DC driving power for
the logic board, motor, head and other parts.
When AC power is being supplied to the printer, all printer hardware components are
active except for the following: heater power supply VH and Vcc of the head; power
supply of photo interrupters (5) total; and head rank circuit.
Pick-Up Roller Sensor
Paper End Sensor
Carriage Motor Driver
Carriage Motor
Buzzer
AC Adapter
Figure 4-26 Printer Electrical System
J6
J7
J1
J2
4-36
BJC-5000
Resume Button
Power Button
Control ROM
MPU & Printer Controller
Cover Open Sensor
DRAM
J3
J4
J5
Paper Feed Motor
Paper Feed Motor Driver
Advertisement
Table of Contents
