Troubleshooting the Printer | M-S Cash Drawer A794 specs

Chapter 2: Using the Printer

A794 Owner’s Guide

Troubleshooting the Printer

The printer is simple and generally trouble-free, but from time to time minor problems may occur. Follow these procedures to determine the cause and resolution of any problems the printer may be having. If the procedures in this section do not correct the problem, contact a service representative.

For more information aboutSee this section

Detailed and technical troubleshooting			“Service Level Troubleshooting”
			in the A794 Service Guide
Printer Tone and Green LED

Problem	Possible Causes	What to Do		Where to Go
Green LED, quick	Paper out.	Put in a new paper roll.		A794 Owner’s Guide
continuous flashing.	Cover off.	Put the cover on.
	Knife unable to home.	Contact your authorized		Contact your authorized
		service representative.		service representative.
Green LED, slow	Paper is low	Put in a new paper roll.		A794 Owner’s Guide
continuous flashing.	(if Paper Low Sensor is
	installed).
	Other problems may be	Contact your authorized
	indicated.	service representative.
Printer beeps (two-	Printer has been turned	No action is required.
tone—low frequency,	on and is ready to
high frequency).	operate.
Printer beeps and flashes	These all indicate serious	Contact your authorized
green LED in various	problems.	service representative.
combinations.

18	December 1999

Image 23

M-S Cash Drawer A794 manual Troubleshooting the Printer, Printer Tone and Green LED

Contents

Owners Guide Disclaimer Legal Notices Power Supply Contents Programming Information Communication Interface Model Identification Communication Interfaces Features OptionsDescription of Printer Models Available Description of Printer Communication Interfaces Models AvailableModel Identification Options Features Connect the Cables Unpack the PrinterChoose a Location Unpack the Printer A794 Thermal Receipt Printer Setup Guide Remove the Starter Paper Roll Supports On a Wall Setting up the printerChoose a Location On a Flat Surface Communication Cable Connect the Cables Cash Drawer Cables Power Supply Cable LED Reset ButtonPrinter Controls Paper Feed Button Tone To Load the Paper Loading Receipt Paper Using the Printer Paper jams Troubleshooting the Printer To start the test Configuring the Printer Poorly printed test printout Troubleshooting the Printer Printer Tone and Green LED Troubleshooting the Printer USE Caution when Printing ProblemsChanging this setting Printer Does Not Function This page intentionally left blank Ordering Miscellaneous Supplies Thermal Paper Specifications Manufacturers How to OrderOrdering Thermal Paper Manufacturers Thermal Paper SpecificationsHow to Order Ordering Thermal Paper Ordering Cash Drawers Ordering Power Supply and Power CordOrdering Miscellaneous Supplies Wall-Mount Kit Ordering Communication Cables Print Zones for 80 mm Paper Print Zones for 82.5 mm Paper Paper Specifications Print ZonesCharacters Print Modes Size Standard CharactersPrint Modes Size Print Zones for 80 mm Paper Paper SpecificationsPrint Zones Print Specifications Print Zones for 82.5 mm Paper To change the Print Density Print Density and Density of Receipt Print Lines Duty Cycle Restrictions Printing Solid Blocks Code Character Sets Code Code Code Code Code Code Code Code Parallel Interface Interface Sending CommandsCommunication Overview RS-232C Interface Communication Overview Sending CommandsUsing DOS to Send Commands Using Basic to Send Commands Print Speed and Timing RS-232C Interface XON/XOFF Protocol DTR/DSR Protocol RS-232C Technical SpecificationsCommunication Connectors Pin DB-9 Connector Pin DB-25 Connector Cash Drawer Connector Power Connector XON/XOFF, DTR/DSR RS-232C Settings Parallel Interface Ieee Bi-directional Parallel Connector By Command Code By Function Command Conventions List of Commands and LocationsComparisons Command Descriptions Ascii Command Conventions By Command Code List of Commands and Location 1B 54 n Select Print Direction in Page Mode 1B 2D n Select or Cancel Underline Mode1B 49 n Select or Cancel Italic Print 1B 4C Select Page Mode 1D 22 55 n1 n2 Flash Memory User Sectors Allocation 1D 3A Select or Cancel Macro Definition1D 42 n Select or Cancel White/Black Reverse Print Mode 1D 21 n Select Character Size Print Test Form Print Bar Code04 n Convert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap 05 n Select Superscript or Subscript Modes Perform Partial Knife Cut Printer Function CommandsVertical Positioning and Print Commands By Function 1F 05 n Select Superscript or Subscript Modes Horizontal Positioning CommandsPrint Characteristic Commands 1B 74 n Select International Character Set 1F 04 n Convert 6 Dots/mm Bitmap to 8 Dots/mm 100 Graphics CommandsStatus Commands User Data Storage Commands Barcode CommandsMode Commands Macro Commands Flash Download Commands 24 n1 n2 Comparisons Perform Full Knife Cut Command DescriptionsPrinter Function Commands Clear Printer Ascii ESC BEL Perform Partial Knife CutGenerate Tone Select Peripheral Device for Multi-Drop Initialize Printer Hexadecimal Decimal Default Range of n Select Paper Sensors to Output Paper End SignalsDefault of n Select Sensors to Stop Printing Enable or Disable Panel Button Value of p2 Select Cut Mode and Cut PaperGenerate Pulse to Open Cash Drawer Value of p1 AX t Print Test Form Feed n Print Lines Vertical Positioning and Print CommandsPrint and Feed One Line Activate Carriage Return Add n Extra Dot Rows Range of n DefaultFeed n Dot Rows Ascii ETB PrintSet Line Spacing to 1/6 Inch Set Line Spacing GS P x y Print and Feed PaperPrint and Feed n Lines Set Horizontal and Vertical Minimum Motion Units Ascii HT Horizontal Positioning CommandsHorizontal Tab Set Column Compatibility Information A794 receipt vs. A793 receipt Set Absolute Starting Position Set Horizontal Tab Positions Value of k Default To move to the left Set Relative Print Position Select Justification GS L nL nH Set Left Margin Set Printing Area Width Ascii DC2 Print Characteristics CommandsSelect Double-Wide Characters Select Single-Wide Characters Ascii ESC DC2 Select 90 Degree Counter-Clockwise Rotated PrintSelect Pitch Column Width Set Right-Side Character Spacing Select Print Mode Values and Ranges Select or Cancel User-Defined Character SetDefine User-Defined Character Set Exception Select or Cancel Underline Mode ESC ? n Cancel User-Defined CharacterCopy Character Set from ROM to RAM ESC 0 0 Select or Cancel Double Strike Select or Cancel Emphasized Mode 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 Smoothing Mode Select Or Cancel White/Black Reverse Print Mode Summary of Rotated Printing Select Superscript or Subscript Modes Print Raster Graphics Graphics Commands Download BMP Logo Select Bit Image Mode Dot Single-Density Mode Data bytes Print Advanced Raster GraghicsSelect Single-Density Graphics Value of r Select Double-Density Graphics Select the Current Logo Define Downloaded Bit Image Value and Range of m Print Downloaded Bit ImageConvert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap Hexadecimal 1D 2F m Decimal Batch Mode Status CommandsStatus Command Introduction Hexadecimal 1B 75 n Decimal Transmit Peripheral Device Status RS-232C printers onlyESC u Hexadecimal 1B 75 Decimal 27 117 Value of returned byte Hexadecimal Decimal Values Transmit Paper Sensor Status Transmit Printer ID Values of n Transmit Printer ID, Remote Diagnostics Extension Programming Information A794 Owner’s Guide December 107 Undefined. Fixed to off Send Printer Software Version Alternate Implementation Real Time CommandsPreferred Implementation Moving Data through the Buffer Rules for Using Real Time Commands Related Information = Transmit Printer Status Busy Line and Fault ConditionsReal Time Status Transmission = Transmit RS-232C Busy Status = Transmit Error Status = Transmit Receipt Paper Status Real Time Request to Printer Value of Byte Real Time Printer Status TransmissionAscii GS ENQ Auto Status Back Select or Cancel Automatic Status Back ASB 118 December December 119 Recognizing Data from the Printer Select Bar Code Height Bar Code CommandsSelect Printing Position of HRI Characters Select Pitch of HRI Characters GS k m n d1…dn 1D 6B m n d1…dn 29 107 m n d1…dn Print Bar Code CODE39 Select Bar Code Width Ascii FF Mode CommandsPrint and Return to Standard Mode Cancel Print Data in Page Mode Ascii ESC L Print Data in Page ModeSelect Page Mode Ascii ESC FF Ascii ESC S Select Standard ModeSelect Print Direction in Page Mode N1-4 = N5 = N6 = N7 = N8 = Set Print Area in Page Mode 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 Value of t Execute Macro Read from Non-Volatile Memory User Data Storage CommandsWrite to User Data Storage Read from User Data Storage December 133 GS U n1 n Flash Memory User Sectors AllocationErase User Flash Sector ESC Flash Download CommandsSwitch to Flash Download Mode Printer operation Get Firmware CRC Return Boot Sector Firmware Part NumberReturn Segment Number Status of Flash Memory Select Flash Memory Sector to Download Erase Selected Flash Sector Erase All Flash Contents Except Boot SectorReturn Microprocessor CRC Return Main Program Flash CRC 1D FF Reset FirmwareDownload to Active Flash Sector Ascii GS Space Basic Index DOS December 141