Command/Status; Introduction; Data Format - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200

4.2.2 Command/Status

4.2.2.1 Introduction

The commands and statuse are exchanged between the Printer
Controller and MCU PWB. Using the data (commands and statuse), the
Printer Controller controls the printer.
NOTE: The communication direction of the commands and statuse are
defined as follows: (These definitions are used throughout this
section.)
- Command: Printer Controller (diagnostic tool)
- Status: MCU PWB
Chapter 4 Diagnostics
MCU PWB
Printer Controller (diagnostic tool)

4.2.2.2 Data Format

The data format is defined as follows:
 1st byte: Command/status code
 2nd byte and the following bytes: Parameter code(s)
The parameter code bytes are variable. (Some commands/status
may not have any parameter.)
The codes are in HEX.
Example) Diagnostic (REGIST_CL) start command
Revision A
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