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

EPSON Stylus Pro 4400/4450/4800/4880/4880C
Supported Packet
Apply the following communication packet.
Table 1-53.
Packet
EPSON Packing Packet Mode shifting
Command/Reply
Init/Reply Initialization
Exit/Reply Exit from Packet Mode
Get Socket ID/Reply Acquisition of Socket ID
Get Service Name/Reply Acquisition of Service Name
OPEN Channel/Reply Open Channel
Close Channel/Reply Close Channel
Credit/Reply Send Credit
Data Packet Printing data / reverse data
Message Packet MIB PDU/Trap PDU etc.
Out of Band Packet Job control information etc.
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)".
Product Description
Description Channel
Ch00
Ch00
Ch00
Ch00
Ch00
Ch00
Ch00
Ch40
Ch40
Ch04/05
Ch40

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.
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).
Interface
Revision C
To move to idle status, close the
110