TITLE : RP-300/310
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tNext
2.1.7 Data Receiving Timing (Compatibility Mode)
Specifications
Characteristics
Symbol
Min [ns]
Max [ns]
Data Hold Time (host)
tHold
750
--
Data Setup Time
tSetup
750
--
STROBE Pulse Width
tSTB
750
--
READY Cycle Idle Time
tReady
0
--
BUSY Output Delay Time
tBUSY
0
500
Data Processing Time
tReply
0
∝
ACKNLG Pulse Width
tACK
500
10us
BUSY Release Time
tnBUSY
0
∝
ACK Cycle Idle Time
tNEXT
0
--
•
The printer latches data at a nStrobe ↓ timing
2.1.8 USB Interface
PIN
SIGNAL
I/O
DESCRIPTION
1
+5V
-
+5V
2
DATA-
-
Printer transmit data line
3
DATA+
-
Printer transmit data line
4
GND
-
System Ground
1) Specifications
Data transmission:
USB 2.0
Connector:
USB “ B” type connector
2) USB interface connection example
Host side
Printer side
VCC ………………………………… VCC
DATA+ ……………………………… DATA+
DATA- ……………………………… DATA-
GND ………………………………… GND