144, Downloading the Font Descriptor Byte | Lexmark 249X, 248X

Downloading the Font Descriptor Byte

Send the following descriptor byte information to the printer:

<x

1B3D - download command prefix - font descriptor byte 0400 - byte count (low byte first) - x0004, 4

23 - font ID for 249x printers

189- font descriptor byte address (low byte first) - x8911

05 - font descriptor byte - ELQ

>

For more information about the Font Descriptor Byte, see page 121.

Creating the Lookup Table Data

Before creating lookup table data, make note of the following memory addresses.

•The valid download address range for the 249x is x800C to xFFFF.

•The ASCII character 0 lookup table entry addresses for the resident fonts are:

—Draft (10 and 12 cpi) and Fast Draft (10 cpi) - x8001

—10 cpi Letter Quality and ELQ - x8912

—Proportional Letter Quality and ELQ - x9213

—12 cpi Letter Quality and ELQ - x9B14

•Download character data can start at any address greater than xA413

In this example, the Letter Quality capital AE character (ASCII character 146) is replaced with the ELQ capital AE character. Entry zero of the draft table starts at x8011 and there are nine bytes per entry:

9 x 146 = 1314 = x522 (the offset into the table)

x522 + x8912 = x8E34 (offset + character ASCII 146 lookup table address)

The address for the new lookup table entry for ASCII character 146 is x8E34.

144	Section 7: Downloading Characters and Fonts

Image 144

Lexmark 249X, 248X manual 144, Downloading the Font Descriptor Byte

Contents

Forms Printer 248x/249x United States Government Restricted Rights Contents Page Epson Mode Printer Commands Barcodes Glossary Index Viii Introduction Physical Characteristics Width Height Depth WeightAvailable Options Options Part Number 2480 2481 2490 2491 Mode 2480/2481 2490/2491 Print SpeedsPrinthead Description 248x Power Requirements Environmental Conditions Alternating Current Line Voltage Power Power CordNoise Emission Value Following are noise emission values for your printer Paper Specifications 2480/2490 Narrow Carriage ModelsLength 2481/2491 Wide Carriage Models Tractor Feeder continuous forms Manual Feed cut sheets Ribbon Specifications DiagnosticsPower-On Diagnostics Printer Test Programming Examples Wend Introduction SIC Command Format Use the following format Initial Values Description Printer Dec Hex Parm Description Selection Dec HexBit Off Parm Description Selection Dec Hex Parm Description Selection Dec Hex Parm Description Selection Dec Hex Code Symbol Description Value Name Dec Hex Control Codes Printer Command Parameters Escape Sequences Command Structure Example of IBM Emulation Mode Printer Command Select Code Page name of command Printer Command Quick Reference IBM Emulation Mode Function Command Dec Hex SeeFor more Information 1B 5B 67 Ln Hn mode Mode data Data58 n1,n2 M3 m4 Selecting a Character Set Select CodeSelect Character Set Usage Notes Print From Code Continuously Print Characters from a Code Download a Character Set Print One CharacterUsage Note Located in the code page tables beginning on Select Global Font Start low/start high Select Global Font GothicPrestige Presentor OratorScript Global Font and Size Parameters Global Font and CodePitch Dec Hs, Ls Hex Hs, Ls Code Decimal Hex Select Print Mode This command sets the pitch at 12 cpiSelect 12 cpi Dec Hex Print Mode 248x249x Select Print Type Style Dec Hex Height Line Space Dec Hex Use this command for bold print To begin bold print Emphasized Bold PrintDouble-Strike Print To end bold print Superscript or Subscript Set Print Direction Cancels double-wide printing mode Sets double-wide printing modeContinuous Double-wide Printing Score Select Continuous Underline Continuous Overscore Set Print Quality Decimal Hex Bit Number Binary Value Print Wires Graphics Print ModesNormal Density Bit Image Graphics Mode and Horizontal Density 249x Only Mode DecHorizontal Density Wires Mode Dec Hex Horizontal Density Wires Dual-Density Bit Image Graphics Half Speed Dual-Density Bit Image Graphics Normal Speed High-Density Bit Image Graphics Set Default Tabulation Stops Horizontal MovementSet Horizontal Tabulation Stops This command sets the left and right margins Set Horizontal MarginsMove Current Print Position Line Control Automatic Line Feed LFReverse Line Feed Move Paper Vertically Vertical Tabulation Set Vertical UnitsSet Vertical Tabulation Stops Sets as many as 64 tabulation stops by line number Line Spacing Set Line Spacing to 1/8 InchSet Line Spacing to 7/72 Inch Activate Line Spacing for Text Porportional Space Mode This command turns porportional space mode on and offSet Line Spacing for Text Set Line Spacing for Graphics Set Top of Form and Page Length Set Top of FormSet Page Length in Inches Set Page Length in Lines Cancel Skip Perforation This command cancels Set Skip Perforation ESC NSet Skip Perforation Setup Barcode Parameter This command sets the barcode parameters to the printerPrinter Control Deselect Printer Unit Module Width Dots Dec Hex Wire Barcode Type Setup Barcode Data Dec Font Selection Name Dec Hex Description Select an International Character Set 248x Select Near-Letter Quality Font249x Select Letter-Quality Font Select Character Style Assign Character Tables Parameter rangeFunction Table/Code Text Print Mode Select Justification Begin or End Double-high PrintingDelete Text Off Dec Hex Print Style Pin Graphics Mode 248x only Change Graphics Mode CommandNormal Density Bit Image Graphics Dual Density Bit Image Graphics Set Graphics Mode Dots per Inch Density Dpi Equivalent Command Backspace Horizontal TabSet Horizontal Tab Stops Set Absolute Print Position Vertical Movement Format Other Commands Setup Barcode Parameter Setup Barcode DataSelect Condensed Mode Define Download Characers Epson Emulation Mode Printer Commands Character Set Select Standard Character SetSelect Block Graphics Character Set Print from Code Code Page SetDecimal Hexadecimal Character Size and Spacing Value Variable/Feature Character StyleFactor 112 Custom Characters Stored graphics data in one dot column buffer Dots per inch/DensitySpeed/Word Size Backspace Carriage Return Execute Horizontal TabSet Horizontal Tabs by Characters Pitch 2480 2481 Set Horizontal Tabs by Dot Columns Pitch Shift IncrementIndent from Left Margin Set Multiple Print Positions Move to the LeftMove to the Right Begin Uni-directional Printing Cancel Skip Over Perforation Set Page Length in InchesSet Page Length in Lines Select Skip Over Perforation Cancels Half-speed Printing Cancel Paper-out SensorSelect Print Suppress Mode Cancel Print Suppress Mode Eject Parallel Interface Parallel Interface Voltage Levels Computer to Printer Communication Pin Connections Computer1329605 10 ft 1427498 20 ft Printer Parallel Pin Assignments Pin Line Description Timing Init How to Connect the RS-232C Serial Interface Universal Serial Bus InterfaceSerial Interface Serial Interface Option Pin Signal Description Serial Cable Pin Assignments RS-232CFollowing illustration shows the RS-232C serial cable Serial Interface Cable RS-232C Using an IBM AT Personal Computer RS-232C Serial Communication Parameters RS-232CVoltage Level Range 100 Serial Data Frame Considerations RS-232CData Transmission Start and Stop Bits Errors 101Data Flow Control 102 XON/XOFF Protocol Timing Serial Computer Configuration Recommendations RS-232C 103OS/2 1.2 OS/2 2.0 104 How Dots Are Added in NLQ Mode 248x PrintersDesigning Draft and NLQ Characters 105 106 Vertical Lines 107 Intersections of Vertical and Horizontal Lines 108 Diagonal Intersecting Horizontal Line Designing Fast Draft Characters Designing NLQ II Characters Downloading Characters109 110 Initializing the Download AreaDownloading a Draft/NLQ Character Set Part One Calculating Count 1, Count 111 Part Two Specifying the Download DataBit Bit Values Functions 112 Printable Designing and Downloading the Draft/NLQ Copyright Symbol 113 114 115 Downloading an NLQ II Character Set 116 117 Bit FunctionsPrintable Data 118 119 249x Printers Designing and Downloading Characters120 Downloading a New Font 121 Font Descriptor ByteDesign Considerations 122 Download Sequence 123 Managing the Download Area 124Lookup Table Designing Monospaced Fast Draft Characters 125 126 MSB LSB Use the following command to initialize the download area 127Creating the Character Data 128 Downloading the Character DataDownloading the Font Descriptor Byte For more information about the Font Descriptor Byte, see 129 Creating the Lookup Table DataDownloading the Lookup Table Data Send the following lookup table information to the printer Designing Monospaced Draft Characters 130Printing the Character 131 LSB MSB 132 Initializing the Download Data 133 134 Designing Proportionally Spaced Characters 135 136 LSB MSB 137 Compressing the Character 138 139 Send the following lookup table example to the printer 140 Designing Enhanced Letter Quality Characters 141 142 143 1FFFF0 144 145 146 Barcodes Barcode Function Barcode Setup Command 149 Is a space module Is a bar moduleBarcode Type Value 248x 249x Is the space width adjustment factor Value 248x space 249x space Module adjustment 151 Minimum Minimum v1 Printer Model Value Values Data Transfer Command Barcode Symbologies 153 13, x0D 12, x0CN2 value Data character set Character Hex Valid EAN-13 command 155 Invalid EAN-13 command N2 value Valid EAN-8 command 157 Barcodes 159 To 255, x01 to xFF X53 Valid Code 39 command 161 Invalid Code 39 command Lowercase ’a’ is not a valid data character for Code 163 Interleaved 2of5 Valid Interleaved 2of5 command Invalid Interleaved 2of5 command 16511, x0B Valid UPC-A command 167 N1 value b0=1 Character Valid Postnet command 169 Postnet ’-’ dash is an invalid character for Postnet 171 To 255, x02 to xFF Data character sets Function Hex 173 Data character set aHex Character Code Data character set B 175 Data character set C Valid Code 128 command Invalid Code 128 command 177 Valid Code 128 command using multiple character sets 179 X0005 181 Example 183 Space width adjustment = default 185 Barcodes Code Pages Code Code Page 437G 189 Code 191 Code Code Page 853T 193 Code 195 Code 197 Code 199 Code 201 Code 203 Code Command Printing a Code 205 Output from the previous example is shown below Set Font Global, ESC 207 248x Font Global IDs FGIDs Decimal, Hex and Byte Decimal Gothic 209 249x Font Global IDs FGIDs Decimal, Hex and Byte Decimal Pitch 211 Decimal Hex Code 213 Print Quality Decimal Hex Interaction of Set Font Global and Set Print Quality Select Fast Draft Character Sets 1 215 Character Set 217 Code Pages Glossary Glossary Numerics Data flow control RS-232C Data frames serial Data packets See serial adapter Index Index Reader’s Comment Form Business Reply Mail