Star Micronics DP8340R user manual Parity, Framing Error

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Paper Empty

When the paper out detector indicates end of paper, the printer stops printing after a maximum of two lines of printing or paper feed. The host computer can receive the printer status by transmitting an ENQ code to the printer. The printer goes OFF LINE and sets the DTR to “MARK” status in 5 seconds after occurrence of a paper empty. It is necessary to install paper into the printer and press the ON LINE BUTTON to light the ON LINE LAMP in order to recover from paper empty status.

Machine Error

A machine error may be generated by paper jamming or when the printer is unable to print data. When a machine error occurs the printer stops printing. In the X-ON/ X-OFF mode, the printer outputs an X-OFF signal immediately. At this time the host computer can receive the printer status after transmitting an ENQ code to printer. The printer goes OFF LINE and sets the DTR to “MARK” status within 5 seconds after the occurrence of Machine Error. It is necessary to turn the printer power off and on again in order to recover from Machine Error.

STATUS

Parity

In DTR mode and X-ON/X-OFF mode parity check is done on vertical parity only.

Framing Error

Framing Error occurs when SPACE signal is detected at STOP Bit time. Framing error and vertical parity error will be indicated by printing “?”.

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Contents DOT Matrix Printer DP8340R Series Serial Interface Trademark acknowledgments Table of Contents RS-232C Current Loop Setting of the DIP Switches DIP-SW Outline Model Name NotationUnpacking and Installation UnpackingInstallation of Paper Holders and Re-Roll Prevention Guard Installation of Paper HoldersInstallation of Re-Roll Prevention Handling NotesPower Supply Unit Part Identification and NomenclaturePrinter Printer Front ViewPart Functional Description Installation of INK Ribbon and Paper Installation of Ink RibbonInstallation of Ink Ribbon Removal of Ink RibbonPaper Insertion For Roll PaperReplace the Printer Cover Validation Option Installation Roll Paper RemovalControl Codes ESC F Code ESC @ 1BH 40H Printer initialization ESC P Remarks Character Code List General Specifications Input Output AC 100 240 DC 12.0 V± 5% 47Hz 63 Hz Roll Paper and Print Area External Dimensions Printer Interface Specifications Interface CircuitSetting of the DIP Switches DIP-SW2Connectors and Signals Error Condition Alarm ModeInterface Connections Peripheral Unit Drive Circuit Cable ConnectionControl Codes Peripheral Drive CircuitInterface for Model DP8340RD D-SUB 25 PIN Connector RS-232C Current LoopSetting of the DIP Switches Removal of the Bottom Cover Jumper SettingSetting of Jumper CTS D-Sub 25 Pin Connector Peripheral Unit Drive Circuit Peripheral Drive Circuit Paper Empty DTR Mode 1 BlockMachine Error ON/X-OFF Mode Framing Error ParitySTX-ETX Mode STX-ETX Mode Flow Diagram Character Code List Page International Character Sets When Power is Supplied by the User Other parameters may be determined by user