Option 79 XON Buffer Level Threshold | Printronix MVP Series

Option 79 — XON Buffer Level Threshold

Allows a choice of two Buffer Almost Empty (BAE) thresholds.

Option	Display	Configuration
Number		Description

.0	79.0	0% of installed buffer (default).
		25% of installed buffer.
.1	79.1	25% of installed buffer.

Option 80 — XOFF Buffer Level Threshold

Allows a choice of two Buffer Almost Full (BAF) thresholds.

Option	Display	Configuration
Number		Description

.0	80.0	75% of installed buffer (default).

.1	80.1	85% of installed buffer.

Option 81 — Current Loop Out

Disables the current loop or allows a choice between internal or external current source.

Option	Display	Configuration
Number		Description

.0	81.0	Disable (default).
		Enable Internal Current source (active).
.1	81.1	Enable Internal Current source (active).

.2	81.2	Enable External Current source (passive).

8–24	Interfaces

Image 192

Printronix MVP Series user manual Option 79 XON Buffer Level Threshold, Option 80 Xoff Buffer Level Threshold

Contents

MVP Series Page 112301-001, Rev B Trademark Acknowledgments Table of Contents Configuration Operation Graphics Programming Interface Routine Service and Diagnostics AppendicesIndex Page Chapter Contents Introduction How to Locate Information About This Manual Switches, Keys, Indicators and Display Messages Printer Features Introduction MVP-Series Printers L150 Printers 150B/L150B Printers Optional Features Character Formation Typical Character Formation Line Matrix Printing Line Matrix Printing Print Mode Print Rate lpm Print RatePrint Rate MVP/L150 150B/L150B Plot Rate Plot RatePlot Rate ipm Density dpi Overview Installation Vorsicht Power Requirements Site Requirements Installing the Printer Assembling the Pedestal Assemble the Two Legs and Modesty Panel Firmly tighten all bolts Installation Assembling the Paper Tray Assembling the Paper Tray Mounting the Printer onto the Pedestal Mounting the Printer onto the Pedestal Attaching the Paper Tray Table Top Mounting Preliminary Testing Applying Power Operation Mechanical Controls Printer Interior View Shuttle Cover Removed Power On-Off Operator Panel Switches and Indicators RDY Ready 8LPI 8 Lines Per Inch TOF Top-of-Form Form Length Second Function Switches 2nd Func Addr Loading Ribbon Ribbon Guides Removing the Ribbon Paper Guidelines Paper Type and Thickness Loading Paper Paper Pedestal Slot Positioning Knob Removing Paper Setting Top-of-Form Setting Forms Length Operation Configuration XX Y Changing Configurations MVP/L150 150B/L150B Verifying Configurations Configuration Options Quick Reference Table for Configuration Options 20 59 Configuration Printer Type Configuration Option Number Option 20 Host Mode Control Programming Standard Option Display Configuration Number DescriptionDiscussion MVP/L150 Option 20 Double Wide Print Operation Expanded Print Select 150B/L150B Option 21 Vertical Dot Density Mode 22.1 Option 22 Insert Automatic Line Feed in Data Stream22.2 22.3 Option 23 Automatic Line Feed on Carriage Return Discussion MVP/L150 Option 24 must be set to Configuration Option 25 Binary Count Slew Option 26 Printer On-line with Power On Option 27 Paper Out Delay Option 28 Underline Option 29 Delete Code 7F Option 30 Print or Graphics Mode at Power On Options 31-41 Control Code Assignments Option Display Number Control Code Assignment 01 Hex Option Display Number Control Code Assignment 02 Hex OptionControl Code Assignment 03 Hex Control Code Assignment 04 Hex Option Display Number Control Code Assignment 05 Hex Option Control Code Assignment 06 HexControl Code Assignment 07 Hex Option Display Number Control Code Assignment 08 Hex Option Control Code Assignment 09 HexControl Code Assignment 0E Hex Option Display Number Control Code Assignment 0F Hex Control Code Assignment Cedilla Character Select Control Code AssignmentControl Code Assignment Alternate Printronix Plot Control Option Display Number Control Code Assignment Mode 1 Select Option Control Code Assignment Mode 2 SelectControl Code Assignment Mode 3 Select Option Control Code Assignment Double High Select Option 42 Electronic Vertical Format Unit Evfu Control Configuration Description Option 43 Plotting ExitOption Display Number Option 44 Buffer Print with Top-of-Form TOF Option 45 Mode Option 46 Evfu Control with no PI Option 47 SOH and ETX Option 48 Characters Per Inch in Mode 150B Option 50 Page Perforation Skip Option 51 Lines Per Inch lpi Line Spacing Option 52 Forms Length at Printer Power Up Option 54 Line Spacing at Power up Option 56 Column Print Spacing Option 57 Input Buffer Size Option 58 ESC DC1 SequenceOption 59 Version Graphics Raster Plotting Ascii Dot Patterns Raster Plot Syntax Dot Control Decimal Pattern Sequence Value Print Modes for Raster Plots Print Modes for Raster Plots High Resolution Raster Plot Syntax Dot Density by ModeMode No Dots/Inch Mode selected by Ascii code Scaling Graphics Exiting from Raster Plot Characteristics of Bit Image Graphics Bit Image Graphics Vertical Data Byte Pattern Plotting a Bit Image Pattern Bit Image Pattern Plan Control Code Dot Density Mode Result Bit Image DensityBit Image Density Bit Image Programming Format ESC CCn1n2DATA where Bit Image Sample Program Sample Single Density Bit Image Graphics Other Bit Image Features Modes 1Modes 2 Modes 3 Darker Print Series Plot Mode Normal Density Plot CharacteristicsPrint Mode Horizontal dpi Vertical dpi Plot Density Plot Data Byte Format Double Density Plot ~~~~~~~~~~~~~~ Plot Data Line Format Normal Density Plot Double Density Plot Plotting Data Odd Dot Plot Pattern Plan Programming Example with Odd Dot Plot 10. Sample Odd Dot Plot Exiting P-Series Plot Mode 11. Truncated Character Line Evfu Programming Evfu Memory Start Load Code 6H Channel Assignment End Load Code 6F Hex Line SpacingEvfu Memory Evfu Command Codes Evfu Programming Example Evfu Load Program Form Troubleshooting for Evfu Programming Using Evfu Evfu Channel AssignmentFirst Data Byte Second Data Byte Bit # Channel # EVFU/IGP Execute Form Mode Relative Line Slewing Sample Form Heading Line Number Hex Code Explanation Example of Line Slewing Clearing Evfu Memory Evfu Channel InstructionBits of Data Byte Channel Selected PI Line Evfu Programming Introduction Control Codes MVP/L150 Control CodesB/L150B Control Codes Code Number Hex MVP/L150 Control Code MVP/L150 Control Codes 0AH Line Feed With Configuration Option 0CH Top-of-Form/Perforation Skip With Configuration Option 23 0DH Carriage Return Alternate and Primary Characters Line of Alternate Characters Odd or Even Dot Plot High Resolution Plot Graphics 04H Even Dot Plot 05H Odd Dot PlotNumber of Dot Positions in a Horizontal Plot Line Mode Odd Dot Plot/Even Dot Plot as Interpreted for Plotting Even Dot Plot Line Terminators 05H Odd Dot Plot 06H Lines per Inch Spacing 08H Elongated Characters With Forms Length 5FH Underline Line Number Enter Result Dot Density Matrix Dot Densities and Plot Speeds for L150 Printers Editing Example Enter Result Slewing a Specified Number of Lines Sample Line Hex Explanation Line Slew Evfu Not Loaded 01H-09H, 0EH, 0FH, 1BH Host Mode Control Host Mode Control Feature Selection Configuration Options and Valid Headers Configuration Options Valid Header Host Mode Control Code Sequence Format SeriesESC Ps q where Host Mode Control Code Sequence Placement Valid Control Code Sequence Characters Per Line/Mode/Configuration Option Control Code Sequence22.0 Invalid Control Code Sequence 10H-1FH Electronic Vertical Format Unit Codes 20H Space 150B Control Codes Ascii Characters Basic Ascii Character Control Codes Character Name Control Code Dec Value Printer ResponseCHR$n EOT Escape Codes ESC n ESC mq ESC hESC l ESC r ESC D N1 n2 ESC Nn ESC S nESC Wn ESC Y ESC 3n Horizontal Tab Loading a Horizontal Tab TableCalling a Horizontal Tab Table Example LPRINT...DATA...CHR$ 9DATA Density Specifications Standard MVP L150 136C Hard Copy Considerations 10. Horizontal Tabs at Power-up TAB position Mode Selection from Host Computer Mode Character/ModeSet/Select Reset Sequences and Other Modes Underline Methods 1 Method 1 On/OffOff Leading and Trailing Spaces Compatibility with Other Features Method 2 Merged Programming Interfaces Centronics and Dataproducts Interface Characteristics Centronics Connector Centronics Interface Input Signals ConnectorOutput Signal Description Connector Dataproducts Connector Dataproducts Interface Input Signals Description Amphenol Winchester Pin Return Parity Amphenol Winchester Output Signals Description Pin Return READY/PE Interface Configuration Options Configuration Printer Configuration Option Number Type Option Number Display Configuration Description Option 60 Data Line 8 with Parallel Interface Option 61 Paper Instruction with Parallel Interface Option 62 Data Strobe Line Polarity with Parallel Interface MVP/L150 Option 65 Busy Line Option Display Number Configuration Description Option 66 Parallel Interface Selection Option 70 Serial Interface/ Protocol Selection Option 71 Serial Data Transfer and Baud Rate Option 72 Data Word Interface Configuration Option 73 Transmitted Data Polarity Option 74 Request to Send RTS Option 75 Clear to Send CTS and Carrier Detect CD Option 76 Data Set Ready DSR-RS-232 pin Option 77 Reverse Channel RC Option 78 Data Terminal Ready DTR Option 79 XON Buffer Level Threshold Option 80 Xoff Buffer Level ThresholdOption 81 Current Loop Out Display Configuration Description Protocol Character Assignment XON or ACKProtocol Character Assignment Xoff or NAK Protocol Character Assignment ETX Switching Interfaces Interface CablesTerminating Resistors Controller Pcba Interfaces Character Sets and Control Codes Ascii Character Set KEY Extended Character Set Appendix BS/CR Protocol Protocol After Receiving a CR or BS CharacterAttributing Conditions Print Width Commands Ascii Control Codes by FunctionESC n ESC r ESC mq Character Name Print Quality Commands Control Code Character Name Dec ValueESC-n Selecting Print Modes Graphic Modes Special Printer Features Forms Control Commands127 Paper Feed Commands Formatting Commands Routine Service and Diagnostics Cleaning Requirements Unplug the printer before cleaning the printerGeneral External Cleaning General Internal Cleaning Before Cleaning Metal Strips Black Knob Cleaning the Printer Foam Insert Moving the Printer Reconnecting the Cables Corrective Maintenance ActionErratic or Stalled Shuttle Self-Test Procedure Self-Tests Self-Tests Configuration Self-Test Configuration Printout Sample Automatic Sequence Repeating Repeating TestsShift Recycle All Black Plot Print Mode Changing Examples Paper MotionExample Hex Dump Mode Routine Service and Diagnostics Printer Fault Conditions To Bypass Soft Fault Table B-1. Fault Code Chart Clear Check Condition Specifications, Accessories and Options Printer Performance Plot Resolution Print Format Horizontal Format Guidelines Paper Characteristics/Function Paper and Ribbon GuidelinesRibbon Environmental TemperatureHumidity Physical MVP, 150B L150Product Certification Operator Controls and Indicators Second Function MVP, L150Mechanical Controls Specifications Centronics InterfacesDataproducts RS-232 Serial Index Evfu Page Page Page Index-6 Page Printronix