Citizen Systems CLP-6401 user manual 4 RS-232C protocol, Fig. Buffer in use

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6.2.4RS-232C protocol

(1)X-ON/X-OFF system (see the figure)

This is a control system in which the data transmission request signal (X-ON (11H) code) and the data transmission stop request signal (X-OFF (13H) code) are output.

Requirements of output of X-ON code:

･When the power is switched to ON.

･When the remaining buffer is 2K bytes or less, the X-OFF is output, and the remaining buffer is 4K bytes or more.

Requirements of output of X-OFF code:

･When printer error occurs.

･When the remaining buffer is 2K bytes or less.

Receive buffer size = 32K bytes

4K bytes

2K bytes

Receiving data

X-ON code output	X-OFF code output

Note: Even if each code is ready for output, the same code cannot be transmitted twice successively (except when the power is turned on or the printer is reset from the control panel).

Fig. Buffer in use

6-9

Image 72

Contents CLP-6401 FCC Compliance Statement For American Users EMI Compliance Statement For Canadian Users Important Safety Instructions Page Safety Signs Page General Precautions Precautions When Installing the Printer Chapters in This Manual Chapter Control PanelTable of Contents Chapter Troubleshooting Xii Chapter Setup Confirmation of Carton Contents Part Names and Functions Front ViewInside View Page Side View Connection to Power Connection to a Computer Chapter Control Panel Control Panel LCD/LED Indications and Adjustment Controls Normal Operating ModePrinter Setup Mode Self-Test ModePage System Maintenance Mode Page Printer Default Values Preparation for Printing Specification of Label and Tag Kinds of PaperPrinting area Units for position and length Reference line and points Paper Setting Roll paper Ribbon Ribbon Setting Head Offset Adjustments Heating element Head Pressure Adjustments Ribbon Tension Adjustments Ribbon width Ribbon winding Ribbon feed Tension SectionAdjustable Sensor Exterior view and part namesHow to operate adjustable sensor Specification of paper for adjustable sensor Cleaning Troubleshooting Error Messages Error descriptions and indicationsCmnd Error indications and corrective actions Page Page Power Troubleshooting Paper Feed Troubleshooting Ribbon Feed Troubleshooting Print Troubleshooting Page Interface Troubleshooting Page Chapter Options Auto-Cutter Unit Peeler UnitPcmcia Memory Card Page Chapter Specifications Main Specifications ･ UCC/EANDescription LCD Description System configuration InterfaceSpecification of interface Serial interface3 RS-232C loopback test Fig. Loopback test4 RS-232C protocol Fig. Buffer in usePage Interface pin assignment Parallel interface pin assignment table Outline of Command System Without printExample of Connection to a Computer Tear-off when printing Tear-Off FunctionTurning Tear ON/OFF Tear-off when feeding ･ Paper is fed to the cut positionCut position adjustments Tear-off and type of dataWhen fnnn command is executed while Tear is OFF Priority order

CLP-6401 specifications

The Citizen Systems CLP-6401 is a versatile and high-performance label printer designed for a wide range of industrial and commercial applications. Renowned for its reliability and efficiency, this printer is particularly well-suited for use in manufacturing, logistics, and retail environments where durable labels are essential.

One of the standout features of the CLP-6401 is its high-resolution printing capability. With a native resolution of 203 dpi, it ensures that text, barcodes, and graphics are produced with sharp clarity and detail. This is critical for applications where barcode readability is paramount, such as in inventory management and shipping.

The CLP-6401 utilizes thermal transfer and direct thermal printing technologies, which offer flexibility in label material choices. This dual-mode capability allows users to select the most appropriate media for their specific needs, whether it involves thermal transfer labels that provide long-lasting durability or direct thermal labels suitable for short-term use. The printer supports a wide range of label sizes, which can be customized according to the application requirements.

Another notable characteristic of the CLP-6401 is its robust construction. Designed for harsh industrial environments, this printer is built to withstand the rigors of daily use. Its compact design ensures that it can fit into tight spaces while still delivering reliable performance.

Connectivity is another important aspect of the CLP-6401. It features multiple interfaces, including USB, Ethernet, and optional Bluetooth, ensuring that it can easily integrate into existing workflows. This adaptability allows businesses to streamline their operations and manage their labeling processes more efficiently.

The CLP-6401 is also equipped with advanced software tools to enhance usability. Citizen Systems provides a range of utilities and drivers that support various operating systems, making it easy to configure and manage print jobs. Additionally, the printer's LCD display allows for straightforward monitoring of printing status and maintenance alerts, ensuring that users are always informed about the printer’s performance.

In summary, the Citizen Systems CLP-6401 is a powerful label printer that combines high-quality printing, robust design, and flexible connectivity options. With its ability to produce durable labels efficiently, it stands out as an essential tool for industries looking to optimize their labeling processes. Whether it's for parcel shipment, product labeling, or inventory control, the CLP-6401 is a reliable choice for today’s demanding applications.