Citizen CL-E331 Programming Manual

CITIZEN Android Label Print SDK — Programming Manual
17
2.2.3 connect method
Syntax
1) int connect (int connectType, String address)
2) int connect (int connectType, String address, int port)
3) int connect (int connectType, String address, int port, int timeout)
4) int connect (int connectType, UsbDevice device)
Parameters
Parameter
[IN/OUT]
Description
Setting range
connectType
[IN]
Interface type
CLS_PORT_WiFi
CLS_PORT_Bluetooth
CLS_PORT_Bluetooth_Insecure
CLS_PORT_USB
address
[IN]
IP address to connect or
Bluetooth device address or
Bluetooth device name
WiFi: 0.0.0.0～255.255.255.255
Bluetooth:
00:00:00:00:00:00～
FF:FF:FF:FF:FF:FF
Device name (Automatic detection)
device
[IN]
UsbDevice class
(android.hardware.usb.UsbDevice)
null: Automatic detection
UsbDevice: Any USB device
port
[IN]
Port number
timeout
[IN]
Timeout (msec)
Description
This method is to connect to a printer. Specify an interface type and address.
The Bluetooth device address must be written in upper case.
When the Bluetooth device name is specified, it looks for a paired device which matches up.
When the Bluetooth device name is not specified, it looks for a paired/supported device automatically.
In case of using the Insecure Bluetooth connection after Android 2.3.3, use
CLS_PORT_Bluetooth_Insecure as connectType.
In case of USB device, the setContext method must be called beforehand.
The port number is effective only when CLS_PORT_WiFi is specified as connectType. The default
port number is 9100.
The timeout is to specify the maximum amount of time (in millisecond) to wait while attempting to
connect to the printer. This is not effective when CLS_PORT_USB is specified as connectType. The
default values are 4000 ms when WiFi, 8000 ms when Bluetooth.
When connecting, this method checks if the printer model is supported.
When the connection is no longer used, the disconnect method must be called. The next connection
will be failed otherwise.
Note
When connecting via USB for the first time, a dialog message for user permission pops up. Press OK
to continue.
A dialog message for user permission (example).

Citizen CL-E331 Specifications

General

Product color	Black
Print technology	Thermal transfer
Printing media thickness	63.5 - 190 µm
Sustainability compliance	Yes
Sustainability certificates	CE, Federal Communications Commission (FCC), TUV, UL ECOLOGO, VCCI
Display	-
Control type	Buttons
Color	No
Maximum resolution	- DPI
Printable dot numbers	300 dot
Ribbon width	60 mm
Core diameter	25 mm
Ribbon length	300 m
Media thickness	0.150 mm
Maximum label width	118 mm
Maximum media length	1625.6 mm
Maximum roll diameter	125 mm
RS-232 ports	1
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Flash memory	16 MB
Internal memory	32 MB
Built-in barcodes	CODABAR (NW-7), Code 128 (A/B/C), Code 39, Code 93, EAN13, EAN8, GS1 DataBar, ITF, PDF417, QR Code, UPC-A, UPC-E
Server operating systems supported	Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022
Windows operating systems supported	Windows 10, Windows 11, Windows 7

Weight and Dimensions

Depth	266 mm
Width	178 mm
Height	173 mm
Weight	2600 g
Label width	104 mm