Xprinter R330H - Printer Appearance and Connections

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2、Appearance and Components
2.1 Appearance of the Product
1--Cutter and moving knife set
2--Rack of cartridge
3--Flip cover
4--Partition board
5--Base
6--Front cover
7--FEED Paper feed key
8--POWER Power key
9--POWER Power indicator
10--ERROR Status indicator
11--PAPER Paper lacking indicator
12--Fixed knife set
13--Rubber roller
14--Gear of rubber roller
15--Cover-opening button
16--Communication interface
(Ethernet/serial interface)
17--USB Interface
18--Power interface
19--Cash drawer interface