Troubleshooting for Evfu Programming | Printronix MVP Series

Troubleshooting for EVFU Programming

Refer to the following guidelines when using the EVFU feature.

Printer Operation During EVFU Loading

The printer mechanism should not move during the loading of the EVFU program. If the printer starts to print or if the paper advances, an error may be present in the load program.

Forms Length

A Start Load code (1EH) clears the EVFU memory and allows the printer to respond to Form Feed (FF) codes by producing the forms length selected with Configuration Option 52.

Top–of–Form

An End Load Code (1FH) turns on the TOF indicator to signify that the EVFU memory is loaded. If a Form Feed code (Channel 1) is issued or the TOF switch is pressed, the paper will slew until the printer senses a Top–of–Form (Channel 1) code.

Line Feed

When the EVFU memory is not loaded, a Vertical Tab (VT) or any EVFU command code received through the interface causes a single line feed.

Page Perforation Skip

Loading an EVFU program automatically disables the Page Perforation Skip (Configuration Option 50).

Paper Runaway Protection

The EVFU will slew one line if the EVFU memory program is not loaded and the host computer issues a control code, line identification code, or slew code as though the EVFU memory program is loaded and a channel code is sent (but not loaded).

EVFU

6–7

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Printronix MVP Series user manual Troubleshooting for Evfu Programming

Contents

MVP Series Page 112301-001, Rev B Trademark Acknowledgments Table of Contents Operation Configuration Graphics Interface Programming Index Routine Service and DiagnosticsAppendices Page Introduction Chapter Contents About This Manual How to Locate Information Switches, Keys, Indicators and Display Messages Introduction Printer Features MVP-Series Printers 150B/L150B Printers L150 Printers Optional Features Typical Character Formation Character Formation Line Matrix Printing Line Matrix Printing MVP/L150 150B/L150B Print Mode Print Rate lpmPrint Rate Print Rate Density dpi Plot RatePlot Rate Plot Rate ipm Overview Installation Vorsicht Power Requirements Site Requirements Assembling the Pedestal Installing the Printer 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 Applying Power Preliminary Testing Operation Printer Interior View Shuttle Cover Removed Mechanical Controls Operator Panel Switches and Indicators Power On-Off 8LPI 8 Lines Per Inch RDY Ready Form Length TOF Top-of-Form 2nd Func Second Function Switches Addr Loading Ribbon Ribbon Guides Removing the Ribbon Paper Type and Thickness Paper Guidelines Loading Paper Paper Pedestal Slot Positioning Knob Removing Paper Setting Top-of-Form Setting Forms Length Operation Configuration XX Y MVP/L150 Changing Configurations 150B/L150B Verifying Configurations Configuration Options Configuration Printer Type Configuration Option Number Quick Reference Table for Configuration Options 20 59 MVP/L150 Option 20 Host Mode Control Programming StandardOption Display Configuration Number Description Discussion 150B/L150B Option 20 Double Wide Print Operation Expanded Print Select Option 21 Vertical Dot Density 22.3 Mode 22.1Option 22 Insert Automatic Line Feed in Data Stream 22.2 Discussion MVP/L150 Option 23 Automatic Line Feed on Carriage Return 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 Option Display Number Control Code Assignment 01 Hex Options 31-41 Control Code Assignments Control Code Assignment 04 Hex Option Display Number Control Code Assignment 02 HexOption Control Code Assignment 03 Hex Control Code Assignment 07 Hex Option Display Number Control Code Assignment 05 HexOption Control Code Assignment 06 Hex Control Code Assignment 0E Hex Option Display Number Control Code Assignment 08 HexOption Control Code Assignment 09 Hex Option Display Number Control Code Assignment 0F Hex Control Code Assignment Alternate Printronix Plot Control Control Code Assignment Cedilla Character SelectControl Code Assignment Option Control Code Assignment Double High Select Option Display Number Control Code Assignment Mode 1 SelectOption Control Code Assignment Mode 2 Select Control Code Assignment Mode 3 Select Option 42 Electronic Vertical Format Unit Evfu Control Option Display Number Configuration DescriptionOption 43 Plotting Exit Option 44 Buffer Print with Top-of-Form TOF Option 45 Mode Option 46 Evfu Control with no PI Option 47 SOH and ETX 150B Option 48 Characters Per Inch in Mode Option 50 Page Perforation Skip Option 51 Lines Per Inch lpi Line Spacing Option 52 Forms Length at Printer Power Up Option 56 Column Print Spacing Option 54 Line Spacing at Power up Option 59 Version Option 57 Input Buffer SizeOption 58 ESC DC1 Sequence Graphics Raster Plotting Ascii Dot Patterns Dot Control Decimal Pattern Sequence Value Raster Plot Syntax Print Modes for Raster Plots Print Modes for Raster Plots Scaling Graphics High Resolution Raster Plot SyntaxDot Density by Mode Mode No Dots/Inch Mode selected by Ascii code Exiting from Raster Plot Bit Image Graphics Characteristics of Bit Image Graphics Vertical Data Byte Pattern Bit Image Pattern Plan Plotting a Bit Image Pattern Bit Image Density Control Code Dot Density Mode ResultBit Image Density ESC CCn1n2DATA where Bit Image Programming Format Sample Single Density Bit Image Graphics Bit Image Sample Program Modes 3 Darker Print Other Bit Image FeaturesModes 1 Modes 2 Plot Density Series Plot ModeNormal Density Plot Characteristics Print Mode Horizontal dpi Vertical dpi Double Density Plot Plot Data Byte Format ~~~~~~~~~~~~~~ Normal Density Plot Plot Data Line Format Double Density Plot Odd Dot Plot Pattern Plan Plotting Data 10. Sample Odd Dot Plot Programming Example with Odd Dot Plot 11. Truncated Character Line Exiting P-Series Plot Mode Evfu Start Load Code 6H Programming Evfu Memory Channel Assignment Evfu Memory End Load Code 6F HexLine Spacing Evfu Programming Example Evfu Command Codes Form Evfu Load Program Troubleshooting for Evfu Programming First Data Byte Second Data Byte Bit # Channel # Using EvfuEvfu Channel Assignment Relative Line Slewing EVFU/IGP Execute Form Mode Example of Line Slewing Sample Form Heading Line Number Hex Code Explanation Bits of Data Byte Channel Selected PI Line Clearing Evfu MemoryEvfu Channel Instruction Evfu Programming Introduction Code Number Hex MVP/L150 Control Code Control CodesMVP/L150 Control Codes B/L150B Control Codes 0AH Line Feed MVP/L150 Control Codes 0CH Top-of-Form/Perforation Skip With Configuration Option 0DH Carriage Return With Configuration Option 23 Line of Alternate Characters Alternate and Primary Characters Mode Odd or Even Dot Plot High Resolution Plot Graphics04H Even Dot Plot 05H Odd Dot Plot Number of Dot Positions in a Horizontal Plot Line Odd Dot Plot/Even Dot Plot as Interpreted for Plotting Line Terminators Even Dot Plot 05H Odd Dot Plot 06H Lines per Inch Spacing With Forms Length 08H Elongated Characters Line Number Enter Result 5FH Underline Dot Density Matrix Dot Densities and Plot Speeds for L150 Printers Example Enter Result Editing Slewing a Specified Number of Lines Line Slew Evfu Not Loaded Sample Line Hex Explanation Host Mode Control Feature Selection 01H-09H, 0EH, 0FH, 1BH Host Mode Control Configuration Options Valid Header Configuration Options and Valid Headers ESC Ps q where Host Mode Control Code Sequence FormatSeries Valid Control Code Sequence Host Mode Control Code Sequence Placement 22.0 Characters Per Line/Mode/Configuration OptionControl Code Sequence Invalid Control Code Sequence 20H Space 10H-1FH Electronic Vertical Format Unit Codes 150B Control Codes Basic Ascii Characters CHR$n Ascii Character Control CodesCharacter Name Control Code Dec Value Printer Response EOT ESC n Escape Codes ESC r ESC mqESC h ESC l N1 n2 ESC D ESC Wn ESC NnESC S n ESC 3n ESC Y Example LPRINT...DATA...CHR$ 9DATA Horizontal TabLoading a Horizontal Tab Table Calling a Horizontal Tab Table Standard MVP L150 136C Density Specifications Hard Copy Considerations TAB position 10. Horizontal Tabs at Power-up Sequences and Other Modes Mode Selection from Host ComputerMode Character/Mode Set/Select Reset Off Underline Methods 1Method 1 On/Off Leading and Trailing Spaces Method 2 Merged Compatibility with Other Features Programming Interfaces Centronics and Dataproducts Interface Characteristics Centronics Interface Centronics Connector Output Signal Description Connector Input SignalsConnector Dataproducts Interface Dataproducts Connector Parity Input Signals Description Amphenol Winchester Pin Return READY/PE Amphenol Winchester Output Signals Description Pin Return Configuration Printer Configuration Option Number Type Interface Configuration Options Option 60 Data Line 8 with Parallel Interface Option Number Display Configuration Description Option 61 Paper Instruction with Parallel Interface Option 62 Data Strobe Line Polarity with Parallel Interface MVP/L150 Option 65 Busy Line Option 66 Parallel Interface Selection Option Display Number Configuration Description 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 81 Current Loop Out Option 79 XON Buffer Level ThresholdOption 80 Xoff Buffer Level Threshold Protocol Character Assignment ETX Display Configuration DescriptionProtocol Character Assignment XON or ACK Protocol Character Assignment Xoff or NAK Terminating Resistors Switching InterfacesInterface Cables Controller Pcba Interfaces Character Sets and Control Codes KEY Ascii Character Set Extended Character Set Appendix Attributing Conditions BS/CR ProtocolProtocol After Receiving a CR or BS Character ESC mq Character Name Print Width CommandsAscii Control Codes by Function ESC n ESC r ESC-n Print Quality CommandsControl Code Character Name Dec Value Graphic Modes Selecting Print Modes 127 Special Printer FeaturesForms Control Commands Paper Feed Commands Formatting Commands Routine Service and Diagnostics General Internal Cleaning Cleaning RequirementsUnplug the printer before cleaning the printer General External Cleaning Before Cleaning Metal Strips Black Knob Cleaning the Printer Foam Insert Moving the Printer Reconnecting the Cables Stalled Shuttle Corrective MaintenanceAction Erratic or Self-Tests Self-Test Procedure Self-Tests Configuration Printout Sample Configuration Self-Test Automatic Sequence All Black Plot RepeatingRepeating Tests Shift Recycle Print Example Mode Changing ExamplesPaper Motion Hex Dump Mode Routine Service and Diagnostics To Bypass Soft Fault Printer Fault Conditions Clear Check Condition Table B-1. Fault Code Chart Printer Performance Specifications, Accessories and Options Plot Resolution Print Format Horizontal Format Ribbon Guidelines Paper Characteristics/FunctionPaper and Ribbon Guidelines Product Certification Environmental TemperatureHumidityPhysical MVP, 150B L150 Mechanical Controls Operator Controls and IndicatorsSecond Function MVP, L150 Dataproducts RS-232 Serial Specifications CentronicsInterfaces Index Evfu Page Page Page Index-6 Page Printronix