Datamax Allegro 2 manual Aligning the Printhead, Direct-Thermal Stock, Tag Stock or Stiff Media

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Troubleshooting

4.2Aligning the Printhead

Components used for Printhead alignment are illustrated in Figure 4-1.

Direct-Thermal Stock:

For best results when using direct-thermal label stock, turn the head adjust screws (Figure 4-1), 1/4 turn clockwise to move the Printhead 0.006" (0.15mm) back on the roller. When the Printhead is aligned with thermal-transfer stock the Printhead is forward on the roller so that the ribbon will separate from the label while the wax ink is still liquid ensuring good print quality. With direct-thermal stock, the Printhead burn line needs to be further back on the roller where there is more contact with the roller. This causes heat to transfer to the paper more efficiently.

Tag Stock or Stiff Media:

The Printer is adjusted at the factory using 5 mil (.005") thick label stock. If heavier tag stock is used, the Printhead may need to be adjusted forward.

Mechanical Adjustments:

The Printer’s Printhead is precisely positioned on mount plate locating pins that are adjusted at the factory. Once adjusted, the locating pins will ensure correct alignment of all future replacement heads. It should not be necessary to realign each new Printhead; however, the following alignment procedure is required if the Printhead mount assembly has been removed or disassembled .

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Contents Allegro2 Operator’s Manual Part Number Revision A3 Agency Compliance and Approvals Page Important Safety Instructions Page Contents Maintenance Getting Started IntroductionUnpacking and Inspection Mechanism Detail Location of Parts on Your PrinterRear View Tear Bar Assembly Installation Tear- off Assembly InstallationButtons, Lights and Switches Using the Printer Control PanelGetting Started Paper/Ribbon SwitchLight RibbonMedia Installation InstallationLabels Label Loading Instructions Ribbon Loading Ribbon Loading InstructionsUsing the Printer Options To install a Memory ModuleAvailable Modules Cutter OptionsFont ROM Modules 256K and 512K RAM ModulesPeel and Present Present SensorMedia Rewinder Getting Started Allegro2 Setting Up Your Printer Power Up Self-TestChecking Voltage Selection Test Label Interfacing to the Printer Part Number DescriptionInterface Cables Sample Installations Connecting to a CRTConnecting to a PC Connecting to Your Non-ASCII Device Connecting to Your MinicomputerSwitch Settings Switch SettingsBaud 9600 4800 2400 1200 300 Test Setting the Baud RateBaud Rate Word LengthSwitch Settings and Functions Other SwitchesImmediate Commands Programming CommandsChar Description Format System-Level CommandsBatch, 1-Cutter Enable Description Format Label-Formatting CommandsSpecial Label-Formatting Commands Programming Examples 10 Font-Loading CommandsExample line Setting Up Your Printer Allegro2 Creating Labels Using Internal Batch Software Check Link CRT Settings Printer Used With a Link CRTConnect Cables Batch System Initialization Function Default SettingsVerify Setup, Power Up, and Load Media Available Fonts and Barcodes Formatting and Printing LabelsMenu Screens Function KeysLabel Name NEW Label Name ALT-P Screen Print Parameters Description Default RangeOther Important Keys Print Label Screen Header Create/Modify Label ScreenCreating Labels Using Internal Batch Software Sample Label Format Creating Labels Using Internal Batch Software Invalid Font Type Smooth Font Information Smooth Font Valid BH RangesNumber OUT of Range Creating Labels Using Internal Batch Software Not Enough Room for Field Data Lines Lhhhvvv Creating Labels Using Internal Batch Software = Day number 1 = Monday Time and Date Information FormatPrints SamplePrint Label Screen Print Label ScreenCreating Labels Using Internal Batch Software System Maintenance Menu System Maintenance ScreenCopy Module Reset PrinterMetric Print Test LabelCreate/Modify Label Commands Command Valid InputsQuick Reference Listing Print Parameters ALT-P Special KeysKey Function Troubleshooting Controlling Print Quality Aligning the Printhead Mechanical AdjustmentsDirect-Thermal Stock Tag Stock or Stiff MediaPrinthead Alignment Printhead Alignment Procedure Label Stock Tracking AdjustmentRibbon Feed and Tracking Adjustments Fine Printhead Alignment Troubleshooting Allegro2 Printhead Mount Assembly Adjusting Printhead Pressure and SupportTroubleshooting Unacceptable Print QualityPrinter Does Not Print, or Prints Several Labels at once Ribbon Does Not Advance Erratic PrintingSkips Every Other Label Unable to print in rotationPrinter fails to turn on Prints Light on the Right Side of the LabelMaintenance Interior and ExteriorDrive Roller Area Method Interval Cleaning ScheduleCleaning the Printhead Cleaning the PrintheadMaintenance Allegro2 Page Appendix a Ascii Control Code ChartMaintenance Allegro2 Char Hex Dec Page Table B-1 Baud Rate Appendix B Switch Settings and Cable InterfacingTable B-2 Word Length Table B-3 OptionsTable B-1 I/O Port Wiring Signal PinParamete Default Value Table B-2 Printer Default Communication ParametersAvailable Fonts and Barcodes Appendix CFonts Table C-1 Valid Human-Readable Font Ascii CharactersTable C-2 Font Sizes Font 6 62-character alphanumeric, uppercase Available Fonts and Barcodes Barcodes Table C-3 Barcode CharacteristicsHbic Barcode I Codabar Kmart NON EDI Lowercase Error CodesUppercase R Uppercase TAllegro2 Table E-1 Printer Interface Cables Appendix EPin Description Table E-2 Printer Pin ConnectionsStraight Cable MXM PC DB25P to Printer Figure E-5 Centronics Parallel Interface Converter ∙ Parallel to Serial Adapter Part NumberPrinting Appendix FBarcodes FontsLabel Material MediaTable F-1 Media Dimensions Label/Tag Media SpecificationsLists of Approved Media Lights, Buttons, Switch and POTCommunications Interfacing ElectricalEnvironmental PhysicalOptions 256K Flash Eeprom Specifications Allegro2 Printer Appendix GThermal Printhead Warranty Service ProceduresLimitation of Liability General Warranty Provisions