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Zebra Technologies Q3DLUBA000002, Q4DLU1B000000 manual RMAN-QLS-002 rev. a Repair Procedures 106

Models: Q3DLUBA000002 Q4DLU1B000000

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Motor Cable- Plug into

J4

Screw, Socket

Hd. #4-40 x1/4”

Turn SW1 CCW all the way for PCC digit 10 = 0; Turn SW1 CW all the way for PCC digit 10 = S

Optional Media Width

Sensor Cable- Plug into

J11 on bottom of CPU

Assy

MLB QL 420

p/n CQ16987-G4;or MLB QL 420 Plus: p/n CQ16923-G4

Printhead Flex Circuit-

Plug into J3

Label Presence Flex Circuit- Plug into J5

Gap Sensor/Printhead Ground Flex Circuit- Plug into J10

Bar Sensor Flex Circuit- Plug into J2

Tab on Latch Lock must slide through head open detec- tor on MLB after assembly.

RMAN-QLS-002 rev. A Repair Procedures

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Zebra Technologies Q3DLUBA000002, Q4DLU1B000000 manual RMAN-QLS-002 rev. a Repair Procedures 106

Contents

Mobile Printers Product Improvements Proprietary StatementContents QL series configurations and Parts Communications DescriptionOperating Modes Printing TechnologyIntroduction 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 SuppliesRemoving the Media Cover Installing the Media CoverMedia Cover, QL 220- RK18236-1 & QL220 Plus- RK17735-015 Tools NeededRMAN-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 AN16753-003Platen/Gear Kits, QL220/QL 220 Plus AN16972-008 Installing the Gear and PlatenAN16792-008- Installing the Peeler Bar AN16792-009- Installing the ScraperPlaten/Gear Kits, QL320/320 Plus- AN16861-013 & AN16861 014 Installing the ScraperPreparation Replacing the Platen AssemblyPlaten/Gear Kits, QL420/420 Plus- AN16753-021 IntroductionRemove 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 AssemblyInstalling the Wireless Module QL 320/320 Plus & QL 420/420 Plus Wireless ModulesProcedure Outline Removing 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 Lower Cover Connector Door, QL 220 /QL220 Plus AN16972-021Remove the Connector Door Attach the new Connector DoorInstall 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 QL420 Installing the Belt ClipRemoving the Belt Clip QL220 QL320AN16753-009 Install the Carrying Strap AN16753-010 Install the D-RingsRemoving the Bushings Installing the D RingsInstalling the Bushings Removing the D RingsInstall 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