HP 800, 700 manual Delta ROW Example

Page 80

HP PCL Commands

The values of the offset have the following definitions:

0 to 30:

The offset is 0 to 30.

31:The offset is 31 or greater. If the offset is 31, an additional offset byte follows the command byte. The offset in the command byte is added to the offset byte. If the off- set byte is 0, the offset is 31; if the offset byte is 255, additional offset bytes follow. The last offset byte will have a value less than 255. All the offset bytes are added to the offset in the command byte to get the offset value. For example, if there are 2 offset bytes, and the last byte contains 175, the total off- set would be:

31 + 255 + 175 = 461.

If more than eight delta bytes are needed, additional command byte/delta bytes are added:

[(Command Byte)(1-8 Delta Bytes)][(Command Byte)(1-8 Delta Bytes)] . . .

The seed row is zeroed when raster mode is entered. Every raster transfer affects the seed row, regardless of the compression method. For example, an Esc * b 0 W while in compres- sion method 0 zeros the seed row. This allows method 3 to be combined with other methods in order to achieve better compression performance.

A vertical offset also affects the seed row: the Y Offset (Esc * b # Y) command skips rows, leaving them blank, and zeros the seed row.

Method 3 operates on each plane independently, and a separate seed row is maintained for each graphic plane. However, a Y Offset affects all planes and seed rows simultaneously.

The examples below show how method 3 affects Raster Transfer and Y Offset commands:

Esc b 0 W

Repeat the previous row. The seed row is unchanged

Esc b 1 Y

Move down one raster row. Zero the seed row.

Esc b 0 Y

Move down zero raster rows. Zero the seed row

 

 

Seed row width is set to the source raster width at the beginning of raster mode. Source Ras- ter Width (Esc * r # S) updates seed row width.

If the Transfer Raster (Esc * b # V or Esc * b # W) command byte count is less than the control byte count, only the transfer byte count number of bytes are replaced. If the transfer count is greater than the control count, only the control byte number of bytes are replaced; for exam- ple, if the control byte count is 10 but the transfer count is 3, only 3 bytes are replaced.

If the last byte indicated by the transfer command value is a control byte, it is ignored. There- fore, Esc * b 1 W does not affect the seed row, but causes the previous row to be repeated.

DELTA ROW EXAMPLE:

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HP DeskJet 600, 700, 800, 900 & HP 2000 Series PCL Developer’s Guide

Image 80
Contents Hewlett-Packard Vancouver Site Preface and Printing History Printing HistoryAbout this Developer’s Guide Which printers are covered by this guide1Special Notes Special Note HP DeskJet 710C, 720C and 820C Series printersTable of Contents HP PCL Commands Fonts HP LaserJet Bitmap Character Definition Printer Commands Setting How This Developer’s Guide WorksLength set to 66 lines Length is set, in numberCommand Summary D Command Usage Table ECommand Options F Command Option Recognition Grid GDetailed Command Description Important PointWhat are Printer Commands? HP PCL CommandsIntroduction to HP PCL History of HP PCL Printer LanguageParameterized Escape Sequences Syntax of Escape SequencesTwo-Character Escape Sequences Esc & l 1 O Esc Text Area Logical Page, PhysicalLayout Current Active Position CAPCAP Position CAP Reference PointPrint Environment Merged Text and Graphics Follow Specifications Priority of Feature Set CommandsProgramming Hints Leverage from Previous ProgramsPriority of Commands Time SaversProgramming Hints HP PCL Commands Testing CommandsControl Codes and Special Character Codes Print ModesDisplay Functions Mode on Display Functions Mode OFFDisplay Functions turned on Display Functions turned offText Enhancements CR = CR LF = LF FF = FF CR = CR, LF LF = LF FF = FFCR = CR LF = CR, LF FF = CR = CR, LF LF = CR, LF FFEnd-of-Line Wrap Enables End-of-Line WrapDisables End-of-Line Wrap Reset Esc E Job ControlGray Balance Gray Balance Default ModesPrinter Control Dry Timer Dry Timer DefaultsEconoFast mode selected Print QualityNormal quality selected Best quality selectedPlain paper Bond paperSpecial paper HP Premium Inkjet PaperHP PCL Commands Printer Diagnostics Self-Test Esc zControl Length Line ValuesSize Size set to that indicatedBy value index in the following TablesValue Description Load z-fold media banners Print current page source isUnchanged Load from trayOrientation PortraitLandscape Reverse PortraitIncrements Horizontal Motion IndexNumber of 1/120 inch Vertical Motion Index Number of 1/48 inch incrementsBetween rows Out of range valuesLine Spacing Sets the number of lines printedPer inch Clear Horizontal MarginsLeft Margin Sets the left margin to the leftEdge of the specified column Right MarginLines-per-inch setting Top MarginTop margin is set to specified Number of lines at the currentDisables perforation skip mode Enables perforation skip modeSets length of the text area, Lines, from the top marginHP PCL Commands Horizontal Positioning Commands BackspaceCarriage Return SpaceFormfeed Horizontal TabMove CAP Horizontal Decipoints Moves CAP horizontally bySpecified number of decipoints InchSpecified number of columns LimitSpecified number of HP PCL UnitsHP PCL Commands Vertical Positioning Commands Move CAP Vertical RowsMoves CAP to the same Column position on a new lineAlong the vertical axis Move CAP Vertical DecipointsMoves CAP to a new position Move CAP Vertical HP PCL Units Moves CAP specified numberHP PCL units along the Y AxisFont Selection by Attribute Font Symbol SetFont Selection Symbol Set Name TIS TAPCI23 Fixed spacing Proportional spacingInter character spacing for Current font is setFont Height Height for current font is setApplied to font style request Specified characteristics areFont Style Matching Algorithm Book or text weight Ultra thinExtra thin ThinSelected Font Selection by IDFont with indicated ID is Font ID Esc * c # D Downloading FontsDownload Font Esc s # W font definition Download FontCharacter Code Download CharacterDelete all fonts temp Permanent, and softDelete all temporary fonts Temp, permanent, and softRaster Mode Commands Locked Out of Raster ModeCommands Allowed in Raster Mode Raster GraphicsPrinter returns to text mode Command processingStart graphics at logical Left boundary current verticalGraphics data printed at 75 dpi Graphics data printed at 100 dpiGraphics data printed at 150 dpi Graphics data printed at 300 dpiCurrent resolutiona Source Raster WidthRaster region width is set to Specified number of pixels atOffset Cursor is moved specifiedNumber of raster lines of vertical MovementRaster Data Transfer Specified number of bytesGraphics data for a single plane Data is set to the printer.Transfer Raster by Row/Block Following specified numberData bytes sent to the printer as DataRaster Compression Method 2 Tagged Image File Format Encoding Tiff revision Has precedence if it is met before the literal run countReplacement count 1 Left offset from the current byte O Method 3 Delta Row EncodingDelta ROW Example Method 9 Compressed Replacement Delta Row Encoding Row 1 Esc * b 3 m 2 W 00000001Row 2 Esc * b 2 W Row 3 Esc * b 5 W 000000000000111100100010101010101010Control Bit Control Bit =HP PCL Commands Color Single plane K palettePlanes, device CMY palette Planes, device RGB paletteWhite no ink Black Black/Yellow Black/Magenta Current palette Foreground ColorSpecified by the given index Planes per Row Index Color Planes per Row Index Color Printed Format FontsStandard Bitmap Font Definition Resolution-Specified Bitmap Font Definition Descriptor Format Ubyte Symbol Set Type UbyteFont Descriptor Size Uint Font Type Ubyte Style MSB UintBaseline Position Uint Cell Width UintCell Height Uint Orientation UbyteSymbol Set Uint Spacing BoolCharacter Set UINT16 Pitch UintStroke Weight Sbyte Height UintXHeight Uint Width Type SbyteTypeface LSB/MSB Ubyte Typeface Family ValueSerif Style Ubyte QualityPlacement Underline Position SbyteUnderline Thickness Ubyte Text Height UintFirst Code Uint Last Code/Number of Chars UintPitch Extended Ubyte Height Extended UbyteResolution Uint Cap Height UintFont Number Uint Font Name ASC16Copyright Font Scaling TechnologySegment Size 102103 Bitmap Resolution SegmentResolution UINT16 Stroke Weight UINT32 Character Enhancement SegmentStyle UINT32 104Sizing UINT16 105Dual-Pitch-Space Char Segment Full-Width-Space Character Code UINT16Half-Width-Space Character Code 106107 HP LaserJet Bitmap Character DefinitionFormat Ubyte Continuation Bool Descriptor Size UbyteClass Ubyte 108109 Class 2 Compressed Bitmap Character Data 110 Left Offset Sint Top Offset SintCharacter Width Uint Character Height Uint112 Delta X SintCharacter Data 113 Banner PrintingEsc & l # H Command Sequence MarginsMoving to a New Logical Unloading Continuous MediaPower-On with Continuous Media Power-Off with Continuous MediaSample HP PCL for a Banner Print Job Printing Cutsheet with Z-Fold Media116 HP PCL Code SamplesFormatting Program Example 117 Commands Sent to Printer 11814.3 3-Plane Color Graphics 11914.4 4-Plane Color Graphics 120121 Printer Commands 122123 Other Resources for Assistance HP Developer ExchangeComments & Feedback 124
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800, 700 specifications

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