Section 3: Interface Specifications
CG4 Series Service Manual Page 3-1
INTERFACE SPECIFICATIONS
This section presents the interface types and their specifications for the CG4 Series printers. These
specifications include detailed information to assist in the selection of the most appropriate method for the
printer to interface with the host.
The following information is presented in this section:
• 3.1 Interface types
• 3.2 RS232C Serial Interface
• 3.3 IEEE 1284 Parallel Interface
• 3.4 Universal Serial Bus (USB) Interface
• 3.5 Local Area Network (LAN) Ethernet
3.1 INTERFACE TYPES
The CG4 Series has three types of Main PCBs. Each type of PCB is equipped with two different interface
types for performing data communication with the host. These are described as follows.
1) Type 1: USB and LAN on-board
2) Type 2: USB and RS232C on-board
2) Type 3: USB and IEEE1284 on-board
Model
Interface Types
USB LAN RS232C
IEEE1284
CG4 series (Type 1)
Yes
Yes -
-
CG4 series (Type 2)
Yes
-
Yes
-
CG4 series (Type 3)
Yes
-
-
Yes
CAUTION:
Never connect or disconnect interface cables (or use a switch box) with power applied to
either the host or printer. This may caused damage to the interface circuitry in the printer/
host and is not covered by warranty.
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