Citizen Systems CLP-8301 user manual DTR protocol, Pin assignment

Page 68

Chapter 8 Maintenance

DTR protocol

DTR signal “Ready (High)” level requirements:

The following must be satisfied:

·Printer is on line.

·Receive buffer has more than 128 bytes available.

Note: When receive buffer has less than 128 bytes available, DTR signal becomes “Busy (Low)” level and this “Busy (Low) level is kept until receive buffer has at least 1K bytes available.

DTR signal “Busy (Low)” level requirements:

The following must be satisfied:

·Printer is in error.

·Printer is in paused state.

·Receive buffer has less than 128 bytes available.

Pin assignment

Pin No.

Signal

Input/Output

Description

1

FG

Output

Frame ground

7

SGND

Output

Signal ground

2

TXD

Output

Signal to transmit data

3

RXD

Input

Signal to receive data

4

RTS

Output

Transmission request signal. Pull up to +12V with

3.3Kohm

 

 

 

6

DSR

Input

Signal active when host computer ready to interface with

printer

 

 

 

20

DTR

Output

Signal active when printer ready to interface with host

computer

 

 

 

25

VCC

Output

(Factory use)

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Contents CLP-8301 Barcode Label PrinterPage EMI Compliance Statement For Canadian Users Important Safety Instructions Trademark Acknowledgement · Wide media, yet small installation space · Easy access to media and ribbon· Minimum maintenance · Easy operation control panelTable of Contents Configuring Your Printer Using the Menus Chapter TroubleshootingViii Chapter UnpackingPrinter accessories Safety Precautions ExamplesAvoid unsafe places Power cord Avoid high-humidity areas Loading the media and ribbon Installation precautions Names and Functions of Printer Parts Printer main bodyPrinter inside Rear and side of printer Control panel LCD DisplayKey functions in the Ready mode Key functions in the Menu mode Media Paper and Ribbon Types of media¨ Black mark tag ¨ Corner-with-a-radius cut tag= Label ¨ Black mark labelMedia size Loading media paper Roll mediaMedia Paper and Ribbon Path of inward-wound roll media Fanfold media Loading ribbon Flange aMedia Paper and Ribbon Media Paper and Ribbon Media Paper and Ribbon Ribbon tension adjustments Printhead adjustments Media sensor adjustments Media Paper and Ribbon Ribbon guide plate adjustments Media Paper and Ribbon Power on and Using the Control Panel Connecting to a power outletTurning the printer on 0000Ready Mode and Menu Mode ReadyReady mode Navigating the Menu SystemChanging Menu Values = Example changing the print densityPermanently Saving Printer Settings Producing a Test or Configuration Print = Example producing a test pattern printTurning the printer OFF Configuring Your Printer Using the Menus Group MenuSetup Menu DT/T TSystem Setup Menu System Setup MenuSTD/ALT After Print Menu Interface Setup Menu Permanently Saving Settings Menu Test Mode MenuMenu Mode Description STD Configuring Your Printer Using the Menus Troubleshooting Items to check in case of troubleTroubleshooting Error messages and corrective actions JamTroubleshooting Maintenance Printer careCleaning method Specifications General specificationsSpecifications InterfacesSerial interface XON/XOFF protocolDTR protocol Pin assignmentParallel interface Timing chart DataPrintable area Movable sensors FIX/VRPrinter storage conditions Environmental requirementsPrinter operating conditions for ensuring print quality Maintenance Citizen Systems Europe GmbH Mettinger Strasse
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