EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Product Description Interface 109
SUPPORTED MAIN COMMAND AND SENDING TIMING
SENDING BDC-ST CHARACTER STRINGS VIA DBIN-REGISTER
When ST of Type-B I/F sets "ON" State-Reply, BDC-ST is sent through DBIN-
register. When State Reply is started, "Start" and "End" of BDC-ST characters
are announced by sending the Main command (0Eh).
NOTE: The BDC-ST is only sent when Type-B Lv2 is used.
TYPE-B LEVEL 3 PACKET MODE
Communication between Type-B I/F card and Printer corresponds to Type-B
Level 3 (Packet Mode) Communication Specification. (IEEE P1284.4 (Draft
1.50) compliant)
Packet Mode Shifting
To shift to Type-B Level 3 Packet Mode, Option Card needs to correspond
to Type-B Level 3 ("D4" character string need to be added to Option Type
character string). If Option Card that is non-Type B Level 3
correspondence is inserted, Type-B sends error.
Supported Channel
Assigning Service and Channel applies the chart below.
Table 1-51. Supported Main Command and Sending Timing
Main command
number
Command name Sending timing
01h Start Software Reset Init signal on the std. parallel
Type B I/F Option command: 01h
Panel Reset
Cold start
04h Send Name Data Type B I/F Option command: 05h
07h Inquire Software Emulation
Type
Changing Software Emulation type
0Eh Inquire ASCII Message Writing to DBIN-register
14h Inquire Emergency Reply Reply for Emergency command
15h Send Emergency Message Receive Emergency command
Table 1-52. Supported Channel
Service
Socket
ID
Use Initiator
Max Data
Size
Credit
1284.4CTRL 00h 1284.4
control
— 64byte 1 (Limited Mode)
EPSON-MIB 04h SNMP/MIB
setting
I/F Card 556byte 1 (Limited Mode)
EPSON-TRAP 05h SNMP/
Trap
notification
Printer 556byte 1 (Limited Mode)
EPSON DATA
(Include Out of
Band)
40h
Send print
data
— 32kbyte
(1 Packet)
Depends on
received buffer
(Unlimited Mode)