Printronix MVP Series manual

Introduction

The MVP–Series printer interfaces are logically and electronically compatible with the Centronics and Dataproducts interfaces. The Centronics and Dataproducts interfaces allow the parallel transfer of 8 data bits, one byte at a time. The switch from one interface to the other requires a simple change of the printer’s input/output (I/O) cable, terminating resistors, and Configuration Option 66 (see “Switching Interfaces” on page 8–26 ).

Centronics and Dataproducts Interface Characteristics

Centronics and Dataproducts interface circuit characteristics are as follows.

Interface Cable

The cable must not exceed 40 feet and must allow the transmission of signals having standard TTL logic level (0.0V to +0.5V low and +2.4V to +5.25V high). Use shielded cable with the shield grounded to minimize electrical noise.

Logic Levels

0.0V to +0.5V low; +2.4V to +5.25V high.

Receivers

TTL 74LS14 with a 1000–ohm pull–up terminating resistor pack in location 18C (Centronics) or optional 220–ohm and 330–ohm pull–up/pull–down terminating resistor packs in locations 18C and 17C, respectively (Dataproducts).

Drivers

TTL 7407 with a 1000–ohm pull–up terminating resistor pack in location 15C (Centronics or Dataproducts).

Terminating Resistors

The Centronics parallel interface requires that 1000–ohm resistor packs be installed at Parallel Controller PCBA coordinates 15C and 18C see

Figure 8–5. Typical circuits using the resistors are shown in Figure 8–6. The Dataproducts Interface requires the 220–ohm resistor pak at coordinates 18C and a 300–ohm pack at coordinates 17C. A 1000–ohm pack is installed at location 15C. A resistor pack is not required with the Serial Controller PCBA.

Logic Configuration

Standard positive true; Option Code 63 is configurable to negative true logic.

8–2	Interfaces

Image 170

Printronix MVP Series user manual Centronics and Dataproducts Interface Characteristics

Contents

MVP Series Page 112301-001, Rev B Trademark Acknowledgments Table of Contents Configuration Operation Graphics Programming Interface Index Routine Service and DiagnosticsAppendices 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 Rate Print Mode Print Rate lpmPrint Rate MVP/L150 150B/L150B Plot Rate ipm Plot RatePlot Rate 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 Discussion Option 20 Host Mode Control Programming StandardOption Display Configuration Number Description MVP/L150 Option 20 Double Wide Print Operation Expanded Print Select 150B/L150B Option 21 Vertical Dot Density 22.2 Mode 22.1Option 22 Insert Automatic Line Feed in Data Stream 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 Control Code Assignment 03 Hex Option Display Number Control Code Assignment 02 HexOption Control Code Assignment 04 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 Control Code Assignment Mode 3 Select Option Display Number Control Code Assignment Mode 1 SelectOption Control Code Assignment Mode 2 Select Option Control Code Assignment Double High 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 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 59 Version Option 57 Input Buffer SizeOption 58 ESC DC1 Sequence 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 Mode No Dots/Inch Mode selected by Ascii code High Resolution Raster Plot SyntaxDot Density by Mode 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 Bit Image Density Control Code Dot Density Mode ResultBit Image Density Bit Image Programming Format ESC CCn1n2DATA where Bit Image Sample Program Sample Single Density Bit Image Graphics Modes 2 Other Bit Image FeaturesModes 1 Modes 3 Darker Print Print Mode Horizontal dpi Vertical dpi Series Plot ModeNormal Density Plot Characteristics 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 Evfu Memory End Load Code 6F HexLine Spacing Evfu Command Codes Evfu Programming Example Evfu Load Program Form Troubleshooting for Evfu Programming First Data Byte Second Data Byte Bit # Channel # Using EvfuEvfu Channel Assignment EVFU/IGP Execute Form Mode Relative Line Slewing Sample Form Heading Line Number Hex Code Explanation Example of Line Slewing Bits of Data Byte Channel Selected PI Line Clearing Evfu MemoryEvfu Channel Instruction Evfu Programming Introduction B/L150B Control Codes Control CodesMVP/L150 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 Number of Dot Positions in a Horizontal Plot Line Odd or Even Dot Plot High Resolution Plot Graphics04H Even Dot Plot 05H Odd Dot Plot 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 ESC Ps q where Host Mode Control Code Sequence FormatSeries Host Mode Control Code Sequence Placement Valid Control Code Sequence 22.0 Characters Per Line/Mode/Configuration OptionControl Code Sequence Invalid Control Code Sequence 10H-1FH Electronic Vertical Format Unit Codes 20H Space 150B Control Codes Ascii Characters Basic CHR$n Ascii Character Control CodesCharacter Name Control Code Dec Value Printer Response EOT Escape Codes ESC n ESC l ESC mqESC h ESC r ESC D N1 n2 ESC Wn ESC NnESC S n ESC Y ESC 3n Calling a Horizontal Tab Table Horizontal TabLoading a Horizontal Tab Table Example LPRINT...DATA...CHR$ 9DATA Density Specifications Standard MVP L150 136C Hard Copy Considerations 10. Horizontal Tabs at Power-up TAB position Set/Select Reset Mode Selection from Host ComputerMode Character/Mode Sequences and Other Modes Off Underline Methods 1Method 1 On/Off Leading and Trailing Spaces Compatibility with Other Features Method 2 Merged Programming Interfaces Centronics and Dataproducts Interface Characteristics Centronics Connector Centronics Interface Output Signal Description Connector Input SignalsConnector 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 81 Current Loop Out Option 79 XON Buffer Level ThresholdOption 80 Xoff Buffer Level Threshold Protocol Character Assignment Xoff or NAK Display Configuration DescriptionProtocol Character Assignment XON or ACK Protocol Character Assignment ETX Terminating Resistors Switching InterfacesInterface Cables Controller Pcba Interfaces Character Sets and Control Codes Ascii Character Set KEY Extended Character Set Appendix Attributing Conditions BS/CR ProtocolProtocol After Receiving a CR or BS Character ESC n ESC r Print Width CommandsAscii Control Codes by Function ESC mq Character Name ESC-n Print Quality CommandsControl Code Character Name Dec Value Selecting Print Modes Graphic Modes 127 Special Printer FeaturesForms Control Commands Paper Feed Commands Formatting Commands Routine Service and Diagnostics General External Cleaning Cleaning RequirementsUnplug the printer before cleaning the printer General Internal Cleaning Before Cleaning Metal Strips Black Knob Cleaning the Printer Foam Insert Moving the Printer Reconnecting the Cables Erratic or Corrective MaintenanceAction Stalled Shuttle Self-Test Procedure Self-Tests Self-Tests Configuration Self-Test Configuration Printout Sample Automatic Sequence Shift Recycle RepeatingRepeating Tests All Black Plot Print Example Mode Changing ExamplesPaper Motion 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 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