Paxar 656 / 636 user manual Print

Page 62

Print

Problem	Probable Cause	Corrective Action

Poor print - uneven or no print	1) Incorrect printhead pressure	1) Remove stock and ink. Close
(mechanical). Also see electrical	adjustment.	printhead. Release pressure (2
trouble shooting.		knurled knobs). Readjust
		pressure by turning knob(s)
		clockwise until they just contact
		printhead plate. Reinstall stock
		and ink. Turn adjusters
		clockwise approximately 1/8 turn
		(5 clicks of knob). As machine
		operates, increase pressure (2-3
		clicks at a time) until best print is
		obtained. Narrow webs will
		require less pressure on front
		adjuster. If print is still poor,
		loosen (2) M3 cap screws visible
		on outer edges of printhead
		carrier. Adjust tangent point to
		optimum print by rotating M3
		screw in top center of printhead
		plate. Lock in place with 2 outer
		M3 cap screws.

	2) Broken ink.	2) Replace ink and readjust (see INK
		trouble shooting).

	3) Ink not rewinding.	3) Readjust (see INK trouble
		shooting).

56 • Mechanical Trouble Shooting

Users Manual Model 656/636

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Contents Model 656 Paxar Systems Group Manual Edition FebruaryThis page intentionally blank Contents Electrical Connections Assembly Drawings Page Introduction Safety Issues / WarningsScope Service Warranty InformationLimited Warranty PartsCustomer Responsibility Location of PrinterAC Power Line UnpackingInventory of Components Paxar 656 / 636 Tool KIT #351390Printer Setup Installing the StackerInstall P.C. Boards as follows Fuse ConfigurationBoard Installation TCB Dip Switch S2 Settings Installing the Power CordInstalling the PC Interface Cable Installing the PC SoftwareProduct Description Printer DescriptionPersonal Computer Specifications Unit SpecificationSelfform Paxar Field Engineer Must be Present Installing Ink RibbonPrinter Operation Loading Stock Stock ThreadingWeb Guide Adjustment Butt SplicePrint Head Open / Close Figure Print Head Open / ClosedStart Control Panel OperationPrinter Controls FeedStop On Line Indicator LightsError SensorFront Panel Menu Functions Print ReportsDiagnostic Tests LCD DisplayLast Batch WAS Imager VXX Ready for Batches Imager VXX Batch ID QTYBuilding Image Imager VXX Press Enter for Print Reports Print Report ModeDisplay Modes Press Enter to Print Last Verifier ScanSetup Mode Change Strobe Strobe 0 NEW Strobe +2 Cutter is Disabled Press Enter to EnableChange the CUT Emulation MODE630 NEW Emulation MODE650Press Enter to Print Checkout Format Life Counters ModeTransfer TYPE052 NEW Transfer TYPE000 Press Enter for Life CountsProtected Mode Change DATE/TIME Change Password 4 Digits NEW WordVerifier is Enabled Press Enter to Disable Press Enter For 2ND LanguageHandling Maintenance / AdjustmentsPrint Head Handling Supplies Print Head CleaningProcedure Print Head Replacement Print Head Pressure Setting Print Head AdjustmentClean Platen Roller TangentSquaring the Print Head Registration Sensor AdjustmentAdjusting Print Sensor Position Print Head Tangent PointCleaning Print Sensor Sensor Trim PotsDIP Switch Bank Lights Hole / Slot Index Registration SensorBottom Ink Sensor Reflective Index Registration SensorFilm Out Sensor / Top Ink Sensor TP8Headlift Sensor Stock out AdjustmentKnife Square Adjustment Full Stacker Sensor Jam SensorStacker Adjustments Stock Feed AdjustmentAdjustment Procedure Mechanical Adjustment Of Feed Roller Pressure Blue RollerMechanical Adjustment of Stock Sense Mark Light Receiver GeneralPage Machine Wiring Electrical ConnectionsRelay Assembly Electrical System Schematic Motherboard Power Connectors Electrical Trouble Shooting Power Up / Sign On / CommunicationsProblem Probable Cause Corrective Action Stock / Ink Advance Problem Probable Cause Corrective Action Print Problem Probable Cause Corrective Action Cut / Stack Electrical Trouble Shooting / Machine Set Up Sequence Mechanical Trouble Shooting StockProblem Probable Cause Corrective Action Ink Print Problem Probable Cause Corrective Action KnifeTCB Cam Lubrication Procedure Mechanical Trouble Shooting SequenceLubrication Procedure Composition Iglide BearingsError Messages Appendix aThermal Control Board P/N Software Upgrade Chip Placement PositionsAppendix B Diskless Rom Board P/N Head Driver Board P/NFront Panel Board P/N Appendix C Ink and Stock Transfer TypesValue Transfer Type Value Transfer Type Appendix D Knife MFG GuidelineAppendix D Appendix D Page Assembly Drawings Unwind Assembly Drawing Unwind Parts List Description QtyWeb Guide / Light Bar Assembly Drawing Web Guide / Light Bar Parts List Drive Assembly Drawing Drive Parts List Printhead Assembly Drawing Printhead Parts List Ink Unwind / Rewind Assembly Ink Unwind / Rewind Parts List Ink Rewind Arbor Assembly Field Retrofit KitInk Rewind Arbor Parts List Feed & Ink Drive Assembly Feed & Ink Drive Parts List Timing Belt Threading Diagram Timing Belt Parts List Ink Turn Roller Assembly Ink Turn Roller Parts List Knife Assembly Drawing Knife Parts List Part Qty Description NumberStacker Assembly Drawing Stacker Parts List Rewind Assembly Drawing Rewind Parts List Stock Out Sensor Assembly Drawing Stock Out Sensor Parts List Part Qty Description NumberOptional Stackers Stacker Specifications Optional 4.25 Pick-up Assembly Optional 4.25 Pick-up Parts List Optional 4.25 Stacker Assembly Optional 4.25 Stacker Parts List Optional Down Stacker Assembly Drawing Part Optional Down Stacker Parts List Part Optional Down Stacker Assembly Drawing Part Rear Support Stacker Optional Down Stacker Assembly Drawing Part #8 Thumb Screw Cap