Epson Stylus Pro 4400 - Supplements; Received Buffer Full Operation; Interface Selection

EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Product Description Interface 110
 Supported Packet
Apply the following communication packet.
 Local MIB
According to Type-B Level 3 Packet Mode correspondence, it corresponds
to Local MIB (Type-B/EMAP).
Refer to "1.4.7 MIB Function (p.102)".
1.6.4 Supplements
RECEIVED BUFFER FULL OPERATION
If the available buffer becomes less than 32Kbyte while receiving data via USB
I/F or 1394 I/F with no error occurring (including Standby), the printer limits its
receivable data size to 40 bytes/sec until the available buffer becomes 36kbyte
or more to avoid the timeout of the host computer.
NOTE: This status is not occurred in Type-B Level 3 Packet Mode for
Credit administration.
INTERFACE SELECTION
The printer has IEEE1394 interface, USB 2.0 interface, and optional interface.
These interfaces are selected manually by the default setting mode or selected
automatically.
 Manual Selection
One of 3 interfaces can be selected; IEEE1394 interface, USB 2.0
interface, optional interface.
NOTE: As for Stylus Pro 4450/4880/4880C, the IEEE1394 interface is not
mounted and the network interface is assigned as the optional
interface.
 Automatic Selection
Select an interface that the printer first received data after power was ON.
If it passes period of time (10 seconds) after interruption of data receiving,
it will be in idle status (any interface is not selected) and will select an
interface which the printer next receives data first.
NOTE: This status is not implemented in Type-B Level 3 Packet Mode
for Channel administration.
To move to idle status, close the
DataChannel.
 Interface Selection and Interface State
When the printer is initialized or returned to the idle status (any interface is
not selected), the USB interface becomes non-NACK reply status, and the
option interface resets OFF-LINE bit of Main Status Register (MNSTS).
Table 1-53.
Packet Description Channel
EPSON Packing
Command/Reply
Packet Mode shifting Ch00
Init/Reply Initialization Ch00
Exit/Reply Exit from Packet Mode Ch00
Get Socket ID/Reply Acquisition of Socket ID Ch00
Get Service Name/Reply Acquisition of Service Name Ch00
OPEN Channel/Reply Open Channel Ch00
Close Channel/Reply Close Channel Ch00
Credit/Reply Send Credit Ch40
Data Packet Printing data / reverse data Ch40
Message Packet MIB PDU/Trap PDU etc. Ch04/05
Out of Band Packet Job control information etc. Ch40