Paxar 656 / 636 Reflective Index Registration Sensor, Film Out Sensor / Top Ink Sensor, TP8

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Reflective Index Registration Sensor

	Sensor on Plain Stock;	Sensor Directly on
	Not on Mark	Mark
Test Point:	TP8	TP8
Adjustment Pot	R47	R47
#4 Light Status:	On	Off
Desired Voltage:	> 3.50 VDC	< 0.75 VDC

The Optional Reflective Registration Sensor, if installed, allows the printer to register to preprinted media by detecting a black mark. Begin by placing the stock so that the black mark is not in the sensor's sight path and adjust the pot until the high value is achieved. Then place the stock so that the black mark is directly in front of the sensor's sight path and adjust until the low level is met. The low level is the more crucial of the two adjustments.

NOTE: The same pot is used for both adjustments and a compromise value must be achieved.

Film Out Sensor / Top Ink Sensor

	Sensor Blocked	Sensor Not Blocked
Test Point:	TP12	TP12
Adjustment Pot	R50	R50
#1 Light Status:	On	Off
Desired Voltage:	> 3.50 VDC	< 0.75 VDC

The Film Out Sensor allows the printer to monitor the availability of ink. Begin by blocking the sensor with the ink intended for use and adjust the pot until the high value is achieved. Then remove the ink from the sensor and adjust until the low level is met. The low level is the more crucial of the two adjustments.

NOTE: The same pot is used for both adjustments and a compromise value must be achieved.

Bottom Ink Sensor

	Sensor Blocked	Sensor Not Blocked
Test Point:	TP16	TP16
Adjustment Pot	R49	R49
#2 Light Status:	On	Off
Desired Voltage:	> 3.50 VDC	< 0.75 VDC

The Bottom Ink Sensor is not available at this time and is reserved for future expansion.

36 • Maintenance / Adjustments

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 Safety Issues / Warnings ScopeIntroduction Service Warranty InformationLimited Warranty PartsCustomer Responsibility Location of PrinterAC Power Line UnpackingInventory of Components Paxar 656 / 636 Tool KIT #351390Printer Setup Installing the StackerFuse Configuration Board InstallationInstall P.C. Boards as follows TCB Dip Switch S2 Settings Installing the Power CordInstalling the PC Interface Cable Installing the PC SoftwareProduct Description Printer DescriptionPersonal Computer Specifications Unit SpecificationSelfform Installing Ink Ribbon Printer OperationPaxar Field Engineer Must be Present 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 DisplayReady for Batches Imager VXX Batch ID QTY Building Image Imager VXXLast Batch WAS 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 LanguageMaintenance / Adjustments Print Head HandlingHandling Print Head Cleaning ProcedureSupplies 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 aSoftware Upgrade Chip Placement Positions Appendix BThermal Control Board P/N 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