Outline Of Electrical Circuit - Intermec ColorCoder V4 Service Manual

2.1 Basic Operation, cont'd.
2.1:B Outline of Electrical Circuit
Intermec ColorCoder V4 – Service Manual Ed. 1
The printer consists primarily of a formatter PCB and engine 1 and
2 PCBs. Major functions of each PCB are as follows:
Formatter PCB
Each interface and image processing of the printing data are
controlled by a microprocessor and a special gate array.
• Controls the Parallel interface
• Analyzes the command data emulation
• Develops the printing data to image memory
• Controls the control panel
• Controls the roll holder unit
• Controls the option (cutter unit)
• Controls the output from the power supply unit
• Interfaces with the engine control unit
Engine 1 PCB
The feeder system and the ink supply system are controlled by a
microprocessor and a special gate array.
• Controls the feeder system
• Controls the ink supply system
• Clock function
• Backup memory function
• Interfaces with the formatter PCB
Engine 2 PCB
All about the BJ heads and the PHS unit, such as cleaning, are
controlled.
• Controls the image data transmission of the heads
• Controls the head drive and temperature
• Controls the head motor
• Controls the cap motor
• Controls the fan motors
Figure 2-2 is a block diagram showing the printer's major circuits.
The electrical control of the printer is executed by two microproc-
essors each installed on the formatter PCB and the engine 1 PCB,
respectively.
The printing data read by the memory card or Parallel interface from
the host computer are image-processed on the formatter PCB, and
sent to the BJ line heads via the engine 2 PCB at the time of printing.
Feeding of the paper and supply of the ink are controlled by the
engine 1 PCB.
Inside the PHS unit are arranged two motors and one solenoid,
which control the UP and DOWN motion of the head holder unit
and capping and wipe evacuation operation of the recovery unit.
These are controlled by the engine 2 PCB.
Chapter 2 Operation and Timing
18