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Epson A794-D100 manual Paper jams Troubleshooting the Printer

Models: A794-D100

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Chapter 2: Using the Printer

A794 Owner’s Guide

4.Place the new roll into the paper bucket with a few inches of paper extending over the cabinet front (or top, if printer is mounted vertically).

Caution: Be sure the paper unrolls from the bottom of the roll. Otherwise, the printer will not print or the paper will jam.

5.Close the cover and remove the excess paper by tearing it against the tear-off blade.

6.Advance the paper if necessary by pressing the Paper Feed Button.

Note: In the event of a paper jam, remove the roll, tear a new clean edge, and replace it in the paper bucket. Be sure that the paper unrolls from the bottom of the roll.

For more information about	See this section
Paper jams	“Troubleshooting the Printer”

12	March 1999

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Epson A794-D100 manual Paper jams Troubleshooting the Printer

Contents

Owners Guide Page Legal Notices DisclaimerPower Supply Contents Communication Interface Programming InformationInstallations Features OptionsDescription of Printer Models Available Description of Printer Models Available Model IdentificationCommunication Interfaces Installations Setting up the printerFeatures On a Flat Surface Vertically see noteOptions Using the Printer Printer Controls Changing Paper Testing 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 Troubleshooting the Printer Printer Tone and Green LEDPrinting Problems Printer Does Not WorkOrdering Thermal Paper Ordering Miscellaneous SuppliesOrdering Thermal Paper Thermal Paper SpecificationsHow to Order ManufacturersOrdering Power Supply and Power Cord Ordering Miscellaneous SuppliesOrdering Cash Drawers Ordering Communication Cables Wall-Mount KitPaper Specifications Print Zones CharactersCharacter Sets Size CharactersPrint Modes StandardPaper Specifications Print ZonesPrint Zones for 80 mm Paper Print Zones for 82.5 mm Paper Character Sets CodeCode Code Code Code Code Code Code Communication Overview RS-232C InterfaceUsing Basic to Send Commands Sending CommandsUsing DOS to Send Commands Communication OverviewRS-232C Interface Print Speed and TimingXON/XOFF Protocol DTR/DSR ProtocolPower Connector RS-232C Technical SpecificationsCommunication Connectors Pin DB-9 Connector Pin DB-25 ConnectorCash Drawer Connector RS-232C SettingsIeee Bi-directional Parallel Connector Parallel InterfaceCommunication Interface List of Commands Comparisons Command Descriptions Programming InformationList of Commands Programming Information26 s c1 c2 n1 d1...nn dn NL nH Comparisons 1D 2A n1 n2 d1...dnCommand Descriptions Command ConventionsPerform Full Knife Cut Printer Function CommandsClear Printer Hexadecimal Decimal ExceptionsHexadecimal Perform Partial Knife CutGenerate Tone Decimal FormulasSelect Print Mode Value of nHexadecimal Decimal Default Select Peripheral Device for Multi-DropInitialize Printer Select Paper Sensors to Output Paper End Signals Default of n ExceptionsRange of n Enable or Disable Panel Button Select Sensors to Stop PrintingRange of k Read from Non-Volatile MemoryGenerate Pulse to Open Cash Drawer Value of p1Value of n1 Select Cut Mode and Cut PaperWrite to Non-Volatile Memory Nvram Value of n2Activate Carriage Return Vertical Positioning and Print CommandsPrint and Feed One Line Feed n Print LinesRange of n Default Feed n Dot RowsAdd n Extra Dot Rows Print Set ColumnSet Line Spacing to 1/6 Inch Set Line Spacing Print and Feed PaperPrint and Feed n Lines Horizontal Positioning Commands Horizontal TabSet Right-Side Character Spacing Set Absolute Starting Position Value of k Default Set Horizontal Tab PositionsSet Relative Print Position Select Justification Compatibility Information A794 receipt vs. A793 receiptSet Left Margin Range of nLRange of nH Set Horizontal and Vertical Minimum Motion Units GS P x ySet 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 Define User-Defined Character Set Values and RangesSelect or Cancel Underline Mode Cancel User-Defined Character Copy Character Set from ROM to RAMESC 0 0 Select or Cancel Emphasized Mode Select or Cancel Double StrikeSelect or Cancel Italic Print Select Character Code TableSelect or Cancel 90 Degree Clockwise Rotated Print Select or Cancel Upside-Down Print ModeSelect International Character Set Select Or Cancel White/Black Reverse Print Mode Select or Cancel Smoothing ModeSelect Superscript or Subscript Modes Summary of Rotated PrintingDownload BMP Logo Graphics CommandsPrint Raster Graphics Hexadecimal Decimal Value= 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 Define Downloaded Bit Image RangesHexadecimal 1D 2F m Decimal Print Downloaded Bit ImageConvert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap Value and Range of mPrinter Status Commands Request Alternate Status parallel printers only Transmit Peripheral Device Status RS-232C printers onlyTransmit Paper Sensor Status Hexadecimal Decimal ValuesTransmit Printer ID Hexadecimal 1D 49 n DecimalTransmit Printer ID, Remote Diagnostics Extension Values of nProgramming 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 Real Time Commands Rules for Using Real Time CommandsBusy Line and Fault Conditions Moving Data through the BufferRecognizing Data from the Printer Real Time Request to Printer Real Time Status Transmission Related Information = Transmit Printer Status= Transmit Error Status = Transmit RS-232C Busy Status= Transmit Receipt Paper Status Real Time Printer Status Transmission Hexadecimal Decimal Value of ByteBar Code Commands Select Printing Position of HRI CharactersSelect Pitch of HRI Characters Select Bar Code Height Print Bar CodeUPC-A Default Formulas Select Bar Code WidthCancel Print Data in Page Mode Mode CommandsPrint and Return to Standard Mode Hexadecimal 0C Decimal ExceptionsHexadecimal 1B 0C Decimal Exceptions Print Data in Page ModeSelect Page Mode Hexadecimal 1B 4C Decimal ExceptionsSelect Standard Mode Ascii ESC SSelect Print Direction in Page Mode Default ExceptionsSet 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 Flash Download Commands Printer operationReturn Segment Number Status of Flash Memory Switch to Flash Download ModeReturn Boot Sector Firmware Part Number ESCGet Firmware CRC Return Boot Sector CRCSelect Flash Memory Sector to Download Range of n ExceptionsErase All Flash Contents Except Boot Sector Return Main Program Flash CRCErase Selected Flash Sector Download to Active Flash Sector Ch * 256 + cl Ffff hexadecimalMarch 127 Reset Firmware Erase User Flash SectorIndex Basic130 March March 131 132 March