42114101 Rev.1
18 /
(2)
Universal Serial Bus (USB)
Universal Serial Bus Specification Revision 1.0 compliance.
1)
Connector
• Printer Side
: “B” Receptacle (Upstream Input to the USB Device)
• Cable Side
: Series “B” Plug
2)
Cable
• Cable Length
: Approx 1.8m (A cable must be met USB Spec Rev 1.1 for
normal operation)
Note: Cable is not supplied.
3)
Table of USB I / F signals
Contact
Signal Name
Typical Wiring
Number
Assignment
1
Vbus
Red
2
D -
White
3
D +
Green
4
GND
Black
Shell
Shield
Drain Wire
4)
Connector pin arrangement
2
3
4
1
5)
Mode & Class of Device
• Full - speed Driver
• Self - powered Device
6)
Data Signaling Rate
• Full - speed function - 12Mb/s
±
0.25%(2500ppm)
7)
Receive Buffer
• 2044K Bytes
8)
Interface circuit
3.3 V
1.5 k
Ω
Rs = 22
Ω
TxD+
Rs
Full-speed
Buffer
Rs
TxD-
Summary of Contents for ML490 Series
Page 1: ...42114101 Rev 1 1 135 ML490 491 PRINTER Maintenance Manual ODA...
Page 2: ...42114101 Rev 1 2...
Page 38: ...42114101 Rev 1 38 Drive gear Ink tank Ribbon cartridge Figure 2 6...
Page 48: ...42114101 Rev 1 48 Change arm Change lever Platen Release cam Figure 2 13 REAR TOP BOTTOM...
Page 96: ...42114101 Rev 1 96 9 Carriage Assy NK2 10 SUS Bearing portion of guide roller EM 30L B...
Page 119: ...42114101 Rev 1 119 6 8 9 7 1 2 3 11 10 4 5 Figure B 2 Printer General Assy...
Page 124: ...42114101 Rev 1 124 9 12 11 1 13 3 7 1 14 5 6 7 2 10 8 Figure B 4 Carriage Assy...