Citizen CL-E321 User Manual

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XON / XOFF Protocol
a Conditions for XON code output
 Communication is possible after the power is turned on.
 Scenario in which the receive buffer has less than 128 bytes available caus-
ing output of the XOFF code followed by the receive buffer then having at least
1,024 bytes available.
b Conditions for XOFF code output
 Scenario in which the receive buffer has less than 128 bytes available.
XON
XOFF
Receive buffer 16k bytes
128 bytes
1024 bytes
DTR Protocol
a Conditions when DTR signal state changes to Ready (High)
Scenario in which the receive buffer has at least 128 bytes available.
Note that once the receive buffer has less than 1,024 bytes available causing the
DTR signal to change to the Busy (Low) state, the DTR signal state remains in the
Busy (Low) state until the receive buffer has at least 1,024 bytes available.
b Conditions when DTR signal state changes to Busy (Low)
Scenario in which the receive buffer has less than 128 bytes available.

Citizen CL-E321 Specifications

General

Print Technology	Thermal Transfer / Direct Thermal
Resolution	203 dpi
Power Supply	100-240V AC, 50/60 Hz
Max Print Width	4.1 inches (104 mm)
Media Sensor	Transmissive and reflective sensor
Interface	USB, Serial (RS-232)
Media Width	1.97 to 4.33 inches (50 to 110 mm)
Supported Barcode Types	Code 39, Code 128, ITF, Codabar, UPC-A, UPC-E, EAN-8, EAN-13, POSTNET
Supported Media Types	Continuous, Die-cut
Media Thickness	0.0635 – 0.254 mm (2.5 - 10 mil)
Print Speed	Up to 8 inches per second