Paper jams Troubleshooting the Printer | M-S Cash Drawer A794

A794 Owner’s Guide

Chapter 2: Using the Printer

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: The Paper must unroll from the bottom to ensure the printer will print and to prevent paper jamming.

5.Close the cover. Pull the excess paper across the tear-off blade and remove.

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

Note: In the event of a paper jam, remove the roll and tear a new clean edge. Place the roll into the paper bucket, so that it unrolls from the bottom of the roll.

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Paper jams	“Troubleshooting the Printer”

December 1999

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M-S Cash Drawer A794 manual Paper jams Troubleshooting the Printer

Contents

Owners Guide Legal Notices Disclaimer Power Supply Contents Communication Interface Programming Information Model Identification Communication Interfaces Features OptionsDescription of Printer Models Available Description of Printer Communication Interfaces Models AvailableModel Identification Features Options Connect the Cables Unpack the PrinterChoose a Location A794 Thermal Receipt Printer Setup Guide Unpack the Printer Remove the Starter Paper Roll Supports Setting up the printer Choose a LocationOn a Flat Surface On a Wall Connect the Cables Communication Cable Power Supply Cable Cash Drawer Cables Reset Button Printer ControlsPaper Feed Button LED Tone Loading Receipt Paper To Load the Paper Using the Printer Paper jams Troubleshooting the Printer Configuring the Printer To start the test Poorly printed test printout Troubleshooting the Printer Troubleshooting the Printer Printer Tone and Green LED Printing Problems Changing this settingPrinter Does Not Function USE Caution when This page intentionally left blank Ordering Miscellaneous Supplies Thermal Paper Specifications Manufacturers How to OrderOrdering Thermal Paper Thermal Paper Specifications How to OrderOrdering Thermal Paper Manufacturers Ordering Cash Drawers Ordering Power Supply and Power CordOrdering Miscellaneous Supplies Ordering Communication Cables Wall-Mount Kit Paper Specifications Print Zones CharactersPrint Modes Size Print Zones for 80 mm Paper Print Zones for 82.5 mm Paper Characters Print ModesSize Standard Print Zones for 80 mm Paper Paper SpecificationsPrint Zones Print Specifications Print Zones for 82.5 mm Paper Print Density and Density of Receipt Print Lines To change the Print Density Duty Cycle Restrictions Printing Solid Blocks Character Sets Code Code Code Code Code Code Code Code Code Interface Sending Commands Communication OverviewRS-232C Interface Parallel Interface Sending Commands Using DOS to Send CommandsUsing Basic to Send Commands Communication Overview RS-232C Interface Print Speed and Timing XON/XOFF Protocol RS-232C Technical Specifications Communication ConnectorsPin DB-9 Connector Pin DB-25 Connector DTR/DSR Protocol Power Connector Cash Drawer Connector RS-232C Settings XON/XOFF, DTR/DSR Ieee Bi-directional Parallel Connector Parallel Interface By Command Code By Function Command Conventions List of Commands and LocationsComparisons Command Descriptions Command Conventions Ascii List of Commands and Location By Command Code 1B 2D n Select or Cancel Underline Mode 1B 49 n Select or Cancel Italic Print1B 4C Select Page Mode 1B 54 n Select Print Direction in Page Mode 1D 3A Select or Cancel Macro Definition 1D 42 n Select or Cancel White/Black Reverse Print Mode1D 21 n Select Character Size 1D 22 55 n1 n2 Flash Memory User Sectors Allocation Print Bar Code 04 n Convert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap05 n Select Superscript or Subscript Modes Print Test Form Printer Function Commands Vertical Positioning and Print CommandsBy Function Perform Partial Knife Cut Horizontal Positioning Commands Print Characteristic Commands1B 74 n Select International Character Set 1F 05 n Select Superscript or Subscript Modes 1F 04 n Convert 6 Dots/mm Bitmap to 8 Dots/mm 100 Graphics CommandsStatus Commands Barcode Commands Mode CommandsMacro Commands User Data Storage Commands Flash Download Commands Comparisons 24 n1 n2 Command Descriptions Printer Function CommandsClear Printer Perform Full Knife Cut Perform Partial Knife Cut Generate ToneSelect Peripheral Device for Multi-Drop Ascii ESC BEL Hexadecimal Decimal Default Initialize Printer Range of n Select Paper Sensors to Output Paper End SignalsDefault of n Enable or Disable Panel Button Select Sensors to Stop Printing Select Cut Mode and Cut Paper Generate Pulse to Open Cash DrawerValue of p1 Value of p2 Print Test Form AX t Vertical Positioning and Print Commands Print and Feed One LineActivate Carriage Return Feed n Print Lines Add n Extra Dot Rows Range of n DefaultFeed n Dot Rows Print Set Line Spacing to 1/6 InchSet Line Spacing Ascii ETB Print and Feed Paper Print and Feed n LinesSet Horizontal and Vertical Minimum Motion Units GS P x y Horizontal Positioning Commands Horizontal TabSet Column Ascii HT Set Absolute Starting Position Compatibility Information A794 receipt vs. A793 receipt Value of k Default Set Horizontal Tab Positions Set Relative Print Position To move to the left Select Justification Set Left Margin GS L nL nH Set Printing Area Width Print Characteristics Commands Select Double-Wide CharactersSelect Single-Wide Characters Ascii DC2 Ascii ESC DC2 Select 90 Degree Counter-Clockwise Rotated PrintSelect Pitch Column Width Set Right-Side Character Spacing Select Print Mode Select or Cancel User-Defined Character Set Define User-Defined Character SetException Values and Ranges Select or Cancel Underline Mode Cancel User-Defined Character Copy Character Set from ROM to RAMESC 0 0 ESC ? n Select or Cancel Emphasized Mode Select or Cancel Double Strike Select or Cancel Italic Print Select Character Size Select or Cancel 90 Degree Clockwise Rotated PrintSelect or Cancel Upside Down Print Mode Normal Select Or Cancel White/Black Reverse Print Mode Select or Cancel Smoothing Mode Select Superscript or Subscript Modes Summary of Rotated Printing Graphics Commands Print Raster Graphics Download BMP Logo Select Bit Image Mode Dot Single-Density Mode Print Advanced Raster Graghics Select Single-Density GraphicsValue of r Data bytes Select Double-Density Graphics Select the Current Logo Define Downloaded Bit Image Print Downloaded Bit Image Convert 6 Dots/mm Bitmap to 8 Dots/mm BitmapHexadecimal 1D 2F m Decimal Value and Range of m Batch Mode Status CommandsStatus Command Introduction Transmit Peripheral Device Status RS-232C printers only ESC uHexadecimal 1B 75 Decimal 27 117 Value of returned byte Hexadecimal 1B 75 n Decimal Transmit Paper Sensor Status Hexadecimal Decimal Values Transmit Printer ID Transmit Printer ID, Remote Diagnostics Extension Values of n Programming Information A794 Owner’s Guide December 107 Undefined. Fixed to off Send Printer Software Version Alternate Implementation Real Time CommandsPreferred Implementation Rules for Using Real Time Commands Moving Data through the Buffer Related Information = Transmit Printer Status Busy Line and Fault ConditionsReal Time Status Transmission = Transmit Error Status = Transmit RS-232C Busy Status = Transmit Receipt Paper Status Real Time Request to Printer Value of Byte Real Time Printer Status TransmissionAscii GS ENQ Select or Cancel Automatic Status Back ASB Auto Status Back 118 December December 119 Recognizing Data from the Printer Bar Code Commands Select Printing Position of HRI CharactersSelect Pitch of HRI Characters Select Bar Code Height Print Bar Code GS k m n d1…dn 1D 6B m n d1…dn 29 107 m n d1…dn Select Bar Code Width CODE39 Mode Commands Print and Return to Standard ModeCancel Print Data in Page Mode Ascii FF Print Data in Page Mode Select Page ModeAscii ESC FF Ascii ESC L Ascii ESC S Select Standard ModeSelect Print Direction in Page Mode Set Print Area in Page Mode N1-4 = N5 = N6 = N7 = N8 = Set Absolute Vertical Print Position in Page Mode Set Relative Vertical Print Position in Page Mode Hexadecimal 1D 3A Decimal Macro CommandsSelect or Cancel Macro Definition Execute Macro Value of t User Data Storage Commands Write to User Data StorageRead from User Data Storage Read from Non-Volatile Memory December 133 GS U n1 n Flash Memory User Sectors AllocationErase User Flash Sector Flash Download Commands Switch to Flash Download ModePrinter operation ESC Return Boot Sector Firmware Part Number Return Segment Number Status of Flash MemorySelect Flash Memory Sector to Download Get Firmware CRC Erase All Flash Contents Except Boot Sector Return Microprocessor CRCReturn Main Program Flash CRC Erase Selected Flash Sector Reset Firmware Download to Active Flash SectorAscii GS Space 1D FF Index Basic DOS December 141