SATO 5900RVe manual Troubleshooting Procedures, RS232 Serial Interface

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Unit 5: Troubleshooting

TROUBLESHOOTING PROCEDURES

The procedures below provide in depth instructions on symptom analysis of specific components. If it is suspected that the problem lies within one of these components, refer to the relative instructions.

CAUTION: NEVER CONNECT OR DISCONNECT INTERFACE CABLES (OR USE A SWITCH BOX) WITH POWER APPLIED TO EITHER THE PRINTER OR THE HOST. THIS MAY CAUSE DAMAGE TO THE INTERFACE CIRCUITRY AND IS NOT COVERED BY WARRANTY.

RS232 SERIAL INTERFACE

•Ensure the serial cable is thoroughly connected to the PC and the printer.

•Ensure the serial cable is not defective.

•Ensure that a Null Modem Cable with correct Pin-out specifications is being used.

•Ensure the specified RS232 Interface Module is installed.

•Ensure the data stream is correct; all letters of command codes are in upper case and without spaces. Carriage Returns are also not acceptable in line fields.

•Ensure the Baud rate, Parity, Data Bits, and Stop Bits are consistent with that of computer. Print a Configuration Test Label to determine the RS232 settings.

•Ensure the printer is receiving from the computer using a Receive Buffer Hex Dump. The printer will print (only once) a hexadecimal dump of everything it has received from the host computer. Each hexadecimal character represents a character the printer received. Analyze and troubleshoot the data stream.

NOTE: A small label may produce a large amount of data when printed in

Hex Dump.

While checking the hex dump printout, look for ODH OAH (carriage return and line feed) char- acters throughout. The command string should be continuous. CR or LF characters are not allowed between the start command (<ESC>A) and the stop command (<ESC>Z). If Basic is being used, it may be adding these characters automatically as the line wraps. Adding a width statement to your program can help suppress these extra ODH OAH characters by expanding the line length up to 255 characters.

If not programming in BASIC, check to see if the equivalent statement in the language exists to suppress extra carriage returns and line feeds from data being sent to the printer. The data stream must be one complete line going to the printer.

SATO M5900RVe Operator Manual

PN 9001125A

Page 5-5

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Contents M5900RVe Direct Thermal Printer Sato America, Inc Table of Contents Maintenance TroubleshootingOperation Introduction Result in Presonal Injury About this Manual1a, Primary Components General Description1b, Primary Components Switches Control FeaturesPage Technical Data Print Physical CharacteristicsPower EnvironmentalCharacter Font Capabilities Regulatory Approvals Downloadable FontsCharacter Control BAR Code CapabiltiesInstallation Packed Components Unpacking & Parts IdentificationMedia Loading Printer InstallationSite Location Media SelectionMedia Loading Interface Selection RS232C SpecificationsRS232 Serial Interface Host Connection DB9 Printer RS232C Serial Interface SignalsPIN Direction Signal Definition Cable Requirements DB9Init SpecificationsIEEE1284 Parallel Interface ACKLocal Area Network LAN Ethernet 802.11B Wireless80211B Wireless Specifications Universal Serial BUS USB AdapterACK/NAK Protocol Receive BufferInterface Module Upgrade Accessories InstallationOperation DIP Switch Panels Printer ConfigurationOFF DSW1 Default SettingsDSW1 Configuration DSW1 Function DescriptionsDSW2 Function Descriptions DSW2 Default SettingsDSW2 Configuration DSW1 ConfigurationFunction Description DSW3 Default SettingsNormal Mode Configuration ModesTest Print Mode Test Print ModeAdvanced Mode Advanced ModeDefault Settings Mode Default Settings ModeDownload Font Deletion Status Description Acsii HEX Transfer Flash Memory Download ModeFlash Memory Download Mode User Download Mode User Download ModeHex Dump Mode HEX Dump ModeCard Mode Card ModeNon-Standard Clear Mode NON-STANDARD Clear Mode10, Service Mode Service Mode11, Counters Mode Counters ModeMaintenance Mode Maintenance ModeCard Mode Advanced ModeMenu Description Service Mode Counters Mode Maintenance Mode Offset Operational AdjustmentsPotentiometer DESCRIPTION/PROCEDURE PrintFeed Direction 14, Sensor & Accessory Locations Unit 4 Operation Sato M5900RVe Operator Manual PN 9001125A Troubleshooting LCD Message Beep Error Condition To Clear Smeared Print Images Image VoidsLight Print Images Uneven Print DarknessPrinter Creates a Blank Label Meandering MediaIncorrect Label Positioning Troubleshooting Procedures Parallel Interface Universal Serial BUS USB InterfaceLAN Ethernet Interface Page Maintenance From the PRINTER, Exersize Care to Prevent Print Head Damage Cleaning ProceduresFuse Replacement Replacement ProceduresPrint Head to Prevent Damage to ITS Elements Print Head ReplacementInterface Board Replacement Interface Board ReplacementPrint Defects Relative Procedure Adjustment ProceduresPrint Head Balance Adjustment Print Head Balance AdjustmentPrint Head Alignment Print Head Alignment
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