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Epson A794-D100 manual Select Bit Image Mode, Value of m

Models: A794-D100

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A794 Owner’s Guide

Chapter 6: Programming Information

Select Bit Image Mode

Sets the print resolution and enters one line of graphics data into the print buffer. Excess data is accepted but ignored. Any print command is required to print the data, after which the printer returns to normal processing mode.

See the illustration for graphic representations of the bit image.

ASCII		ESC * m n1 n2 d1 ... dn
Hexadecimal 1B 2A m n1 n2 d1 ... dn
Decimal		27 42 m n1 n2 d1 ... dn
Value of m
Value					No. of
of m	Mode		No. of Dots (Vertical)	No. of Dots (Horizontal)	Dots/Line

0	8 Dot Single Density		8 (68 DPI)	0-288 (101 DPI)	8 x 288
1	8 Dot Double Density		8 (68 DPI)	0-576 (203 DPI)	8 x 576
32	24	Dot Single Density	24 (203 DPI)	0-288 (101 DPI)	24 x 288
33	24	Dot Double Density	24 (203 DPI)	0-576 (203 DPI)	24 x 576

Value of n

Value of n (8-Dot Single	Value of n (24-Dot Single
Density Mode)	Density Mode)	Value of d
n1 + (256 x n2)	3 x [n1 + (256 x n2)]	Number of Bytes of Data
		(Printed Down, Then Across)

Related Information

8-Dot Single-Density Mode	Receipt
	Receipt
Top of Bit Image	MSB

d1 d2 d3 d4

dn dn

LSB

March 1999

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Image 87

Epson A794-D100 manual Select Bit Image Mode, Value of m

Contents

Owners Guide Page Disclaimer Legal NoticesPower Supply Contents Programming Information Communication InterfaceInstallations Features OptionsDescription of Printer Models Available Description of Printer Models Available Model IdentificationCommunication Interfaces Setting up the printer InstallationsOn a Flat Surface Vertically see note FeaturesOptions Printer Controls Changing Paper Testing the Printer Using the PrinterReset Button Printer ControlsPaper Feed Button Tone Changing Paper A794 Owner’s Guide Paper jams Troubleshooting the Printer Testing the Printer Poorly printed test printout Troubleshooting the Printer Printer Tone and Green LED Troubleshooting the PrinterPrinter Does Not Work Printing ProblemsOrdering Miscellaneous Supplies Ordering Thermal PaperManufacturers Thermal Paper SpecificationsHow to Order Ordering Thermal PaperOrdering Power Supply and Power Cord Ordering Miscellaneous SuppliesOrdering Cash Drawers Wall-Mount Kit Ordering Communication CablesPaper Specifications Print Zones CharactersCharacter Sets Standard CharactersPrint Modes SizePaper Specifications Print ZonesPrint Zones for 80 mm Paper Print Zones for 82.5 mm Paper Code Character SetsCode Code Code Code Code Code Code RS-232C Interface Communication OverviewCommunication Overview Sending CommandsUsing DOS to Send Commands Using Basic to Send CommandsPrint Speed and Timing RS-232C InterfaceDTR/DSR Protocol XON/XOFF ProtocolPin DB-9 Connector Pin DB-25 Connector RS-232C Technical SpecificationsCommunication Connectors Power ConnectorRS-232C Settings Cash Drawer ConnectorParallel Interface Ieee Bi-directional Parallel ConnectorCommunication Interface Programming Information List of Commands Comparisons Command DescriptionsProgramming Information List of Commands26 s c1 c2 n1 d1...nn dn NL nH 1D 2A n1 n2 d1...dn ComparisonsCommand Conventions Command DescriptionsHexadecimal Decimal Exceptions Printer Function CommandsClear Printer Perform Full Knife CutDecimal Formulas Perform Partial Knife CutGenerate Tone HexadecimalValue of n Select Print ModeHexadecimal Decimal Default Select Peripheral Device for Multi-DropInitialize Printer Select Paper Sensors to Output Paper End Signals Default of n ExceptionsRange of n Select Sensors to Stop Printing Enable or Disable Panel ButtonValue of p1 Read from Non-Volatile MemoryGenerate Pulse to Open Cash Drawer Range of kValue of n2 Select Cut Mode and Cut PaperWrite to Non-Volatile Memory Nvram Value of n1Feed n Print Lines Vertical Positioning and Print CommandsPrint and Feed One Line Activate Carriage ReturnRange of n Default Feed n Dot RowsAdd n Extra Dot Rows Print Set ColumnSet Line Spacing to 1/6 Inch Print and Feed Paper Set Line SpacingPrint and Feed n Lines Horizontal Positioning Commands Horizontal TabSet Right-Side Character Spacing Set Absolute Starting Position Set Horizontal Tab Positions Value of k DefaultSet Relative Print Position Compatibility Information A794 receipt vs. A793 receipt Select JustificationSet Left Margin Range of nLRange of nH GS P x y Set Horizontal and Vertical Minimum Motion UnitsSet Printing Area Width Print Characteristics Commands Select Double-Wide CharactersSelect Single-Wide Characters Select 90 Degree Counter-Clockwise Rotated Print Select Pitch Column WidthHexadecimal Decimal Related Information Select Character Set Values and Ranges Define User-Defined Character SetSelect or Cancel Underline Mode Cancel User-Defined Character Copy Character Set from ROM to RAMESC 0 0 Select or Cancel Double Strike Select or Cancel Emphasized ModeSelect Character Code Table Select or Cancel Italic PrintSelect or Cancel 90 Degree Clockwise Rotated Print Select or Cancel Upside-Down Print ModeSelect International Character Set Select or Cancel Smoothing Mode Select Or Cancel White/Black Reverse Print ModeSummary of Rotated Printing Select Superscript or Subscript ModesHexadecimal Decimal Value Graphics CommandsPrint Raster Graphics Download BMP Logo= Number of dots to be moved from the beginning of the line Select Bit Image Mode Select Single-Density Graphics Select Double-Density Graphics Select the Current Logo Ranges Define Downloaded Bit ImageValue and Range of m Print Downloaded Bit ImageConvert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap Hexadecimal 1D 2F m DecimalPrinter Status Commands Transmit Peripheral Device Status RS-232C printers only Request Alternate Status parallel printers onlyHexadecimal Decimal Values Transmit Paper Sensor StatusHexadecimal 1D 49 n Decimal Transmit Printer IDValues of n Transmit Printer ID, Remote Diagnostics ExtensionProgramming Information A794 Owner’s Guide Select or Cancel Automatic Status Back ASB Default ASB disabled Exceptions Undefined Off Not used. Fixed to off Transmit Status When n is out of the specified range, the command is ignored Send Printer Software Version Print Test FormAX t Rules for Using Real Time Commands Real Time CommandsMoving Data through the Buffer Busy Line and Fault ConditionsRecognizing Data from the Printer Real Time Request to Printer Related Information = Transmit Printer Status Real Time Status Transmission= Transmit RS-232C Busy Status = Transmit Error Status= Transmit Receipt Paper Status Hexadecimal Decimal Value of Byte Real Time Printer Status TransmissionBar Code Commands Select Printing Position of HRI CharactersSelect Pitch of HRI Characters Print Bar Code Select Bar Code HeightUPC-A Select Bar Code Width Default FormulasHexadecimal 0C Decimal Exceptions Mode CommandsPrint and Return to Standard Mode Cancel Print Data in Page ModeHexadecimal 1B 4C Decimal Exceptions Print Data in Page ModeSelect Page Mode Hexadecimal 1B 0C Decimal ExceptionsAscii ESC S Select Standard ModeDefault Exceptions Select Print Direction in Page ModeSet Print Area in Page Mode Select Character Size Set Absolute Vertical Print Position in Page Mode Set Relative Vertical Print Position in Page Mode Macro Commands Select or Cancel Macro DefinitionHexadecimal 1D 3A Decimal Formulas Execute Macro Value of rValue of t Printer operation Flash Download CommandsESC Switch to Flash Download ModeReturn Boot Sector Firmware Part Number Return Segment Number Status of Flash MemoryRange of n Exceptions Return Boot Sector CRCSelect Flash Memory Sector to Download Get Firmware CRCErase All Flash Contents Except Boot Sector Return Main Program Flash CRCErase Selected Flash Sector Ch * 256 + cl Ffff hexadecimal Download to Active Flash SectorMarch 127 Erase User Flash Sector Reset FirmwareBasic Index130 March March 131 132 March