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Zebra Technologies Q3DLUBA000002, Q4DLU1B000000 manual From # of connections MLB Connector #

Models: Q3DLUBA000002 Q4DLU1B000000

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From	# of connections	MLB Connector #

Keypad Ground	1 (Flex)	J1 (GROUND)-
Bar Sensor	3 (Flex)	J2 (BAR)(bottom of board)-
Printhead	28 (Flex)	J3 (PRINTHEAD)-
Motor	4	J4 (MOTOR)(bottom of board)-
Label Presence Sensor	4 (Flex)	J5 (PEEL)-
Membrane Keypad	8 (Flex)	J6 (KEYPAD)-
LCD Keypad	10 (Flex)	J8 (LCD)-
QuickLink Module		J9 (MODULE)-
Gap Sensor/Printhead Ground	5 (Flex)	J10 (GAP)-

Notes:

For ease of assembly, install the Printhead and Motor Cables first, then install the optional Media Width Cable.

Connectors for cables are polarized. The connectors will only fit in one direction. Do not try to force the connectors in place.

Flex cables install in zero insertion force (ZIF) connectors. Pull the connector open, insert the cable, and close the connector to retain the flex cable.

Dress all cables away from mounting bosses so they won’t get pinched during the next as- sembly steps.

4.Set the Compatibility Switch per PCC digit 10:

If PCC digit 10 = 0, set SW1 to NORMAL CCW (turn fully counterclockwise ).

Motor Cable	Bar Sense Cable
Twist excess cable

Keypad

	J4
	J11
J1	J2
J1
Keypad

Printhead

Cable

LCD Cable

Gap Sensor Cable

Label Presence Sensor Cable

continued

RMAN-QLS-002 rev. A Repair Procedures

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Zebra Technologies Q3DLUBA000002, Q4DLU1B000000 manual From # of connections MLB Connector #

Contents

Mobile Printers Product Improvements Proprietary StatementContents QL series configurations and Parts Operating Modes DescriptionPrinting Technology CommunicationsIntroduction to Label Vista Diagnostic ToolsSample Configuration Label Printing a Diagnostic LabelCreating a Configuration Label Peripherals installed Configuration Label Example Starting Label Vista Using Label VistaEquipment Required For Label Vista Running The Software Equipment RequiredAdditional information Using the QL Product Configuration CodeQL Component Replacement Procedures Optional LCD Control Panel TroubleshootingStandard Control Panel No power Troubleshooting TopicsPoor or faded print or flashing RMAN-QLS-002 rev. a Repair Procedures QL220/220 Plus Repair Path MLB QL320 & QL420 Repair PathStorage and Handling Tools and SuppliesMedia Cover, QL 220- RK18236-1 & QL220 Plus- RK17735-015 Installing the Media CoverTools Needed Removing the Media CoverRMAN-QLS-002 rev. a Repair Procedures Model Kit p/n Comments Media Cover, QL 320, QL 320 Plus & QL 420,QL 420 PlusInstalling the Media Cover RMAN-QLS-002 rev. a Repair Procedures Removing the Media Guide Plate Assembly Media Guide Plate Assembly, QL220/220 PlusInstalling the Media Guide Plate Assembly Installing the Media Assembly Media Guide Assembly, QL320/320 PlusRemoving the Media Assembly Ensure Media Sensor cable is behind holding feature Kit p/n Description Type Media Guide Assembly, QL420/420 PlusModule Remove the Media Support Disks Install new Media Support DisksMedia Support Disks, QL Series Changing Media type Changing the Media Core SizeReplacing the Media Rollers Media Guide Rollers, QL420/QL 420 Plus AN16753-003AN16792-008- Installing the Peeler Bar Installing the Gear and PlatenAN16792-009- Installing the Scraper Platen/Gear Kits, QL220/QL 220 Plus AN16972-008Platen/Gear Kits, QL320/320 Plus- AN16861-013 & AN16861 014 Installing the ScraperPlaten/Gear Kits, QL420/420 Plus- AN16753-021 Replacing the Platen AssemblyIntroduction PreparationRemove the old Platen Assembly Removing the Upper Housing Upper Housing /Wireless Modules-QL220 & QL 220 PlusSet New Parameters Installing the Upper HousingInstalling the Upper Housing Upper Housing, QL320- RK18233-1Assemble the P.C. Board Cover Upper Housing, QL420/420 Plus- AN16753-007Assemble P.C. Board Cover Housing, Upper p/n DA16394-1Install the Upper Housing Assemble the Sensor Support Remove the Upper HousingLabel Presence Sensor, QL320- AN16861-015 Re-install the Upper Housing Install Label Present Sensor OptionInstall the Radio Installing a Wlan Radio and AntennaAssemble the Antenna Finish the AssemblyProcedure Outline QL 320/320 Plus & QL 420/420 Plus Wireless ModulesRemoving the Wireless Module Installing the Wireless ModuleUpper Housing or Wireless Module Screw, #4-40 x 3/8 Removing the LCD module Installing the KeypadRemoving the Keypad Installing the LCD module Installing an LCD Keypad Installing a Membrane Key Pad Printer Frame, QL220/220Plus- AN16972-001 Installing the Printer FrameRemoving the Printer Frame Install the new Printer Frame AssemblyRMAN-QLS-002 rev. a Repair Procedures From # of connections CPU Connector # Remove the Connector Door Connector Door, QL 220 /QL220 Plus AN16972-021Attach the new Connector Door Remove the Lower CoverInstall the Connector Door Connector Door, QL420 & QL420 Plus- AN16753-020Motor,QL220 & QL 220 Plus AN16972-002 Installing the MotorRemoving the Motor Motor, QL 320/320 Plus & QL420/420 Plus- RK18251-1From # of connections CPU Connector # Printhead, QL220- RK18278-1 & QL 220 Plus- RK17735-016 Installing the PrintheadPrinthead, QL320 RK18277-1 & QL 320 Plus- RK18465-003 Remove the Printhead Install the new Printhead AssemblyPrinthead, QL 420- RK18252-1 & QL 420 Plus- RK17735-004 RMAN-QLS-002 rev. a Repair Procedures RMAN-QLS-002 rev. a Repair Procedures RMAN-QLS-002 rev. a Repair Procedures RMAN-QLS-002 rev. a Repair Procedures Latch, QL 220/QL 220 Plus- AN16972-004 Installing the LatchRMAN-QLS-002 rev. a Repair Procedures Latch, QL 320/ QL 320 Plus- AN16861-025 Removing the Latch Latch, QL 420/ QL 420 Plus- AN16753-011Latch Assembly Removing the Peeler Shaft and Roller Installing the Peeler Shaft and RollerRemoving the MLB Installing the MLBFrom # of connections MLB Connector # Compatibility Switch SW1 J4 Motor 103 RMAN-QLS-002 rev. a Repair Procedures RMAN-QLS-002 rev. a Repair Procedures 104 105 RMAN-QLS-002 rev. a Repair Procedures RMAN-QLS-002 rev. a Repair Procedures 106 Removing the Belt Clip Installing the Belt ClipQL220 QL320 QL420AN16753-009 Install the Carrying Strap AN16753-010 Install the D-RingsInstalling the Bushings Installing the D RingsRemoving the D Rings Removing the BushingsInstall the Kickstand QL 220 ilustrated Installing the Battery Pack Removing the Battery PackComponent Replacement Procedures Using the Product Configuration CodeEurope Factory Repair and Parts Ordering ProcedureRepair Services contact Information USA PCC Notes QL 220 Product Configuration Code PCCPCC Example Accessory Parts not illustratedKIT RPR QL2 Media Guide W/BELT QL 220 & 220 Plus Replacement KitsShaded items are not illustrated Printer Mechanism Exploded View QL 220 & 220 Plus PartsQL 220 & 220 Plus Parts- Unit Exploded View PCC QL 320 & 320 Plus Product Configuration CodeInterpreting the PCC Code Assy Module Irda QL3/4 QL QL 320 & 320 Plus Replacement KitsKIT RPR QL 320 Media GUIDE/MW Unit Exploded View Pcmcia Radio Options QL 420 & 420 Plus Product Configuration Code Parts Not Illustrated KIT Repair QL4 PRINTHD/SENSOR QL 420 & 420 Plus Replacement KitsSelf TAP SCREW, M3X6, QTY RMAN-QLS-002 rev. a Replacement Kits 130 Pcmcia Option