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

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Media Assembly

Printer Frame

Gap Sensor Cable (part of Media Assembly)

Screw (2 places)

Frame.

3.Install the Printhead Assembly

•Follow the procedure for installing the Printhead Assembly in AN16861-027 for QL 320 or AN16753-006 for QL 420.

•Secure the ground strap from the Bar Sensor Cable to the Printhead Assem- bly with the screw retained from when it was removed.

•Install the Printhead Springs

4.Install the Latch Assembly

•Follow the procedure for installing the Latch Assembly as detailed in AN 16861-025 for QL 320 or AN 16753-011 for QL 420.

•Ensure the Latch Spring is properly held in place on the Printer Frame.

•Verify proper operation of the Latch Assembly.

5.Install the Printer Frame and Media Cover assembly into the Lower Cover.

•Ensure that the Motor Cable and Bar Sense Cable and (optional) Media Width Sensor Cable will not be pinched between the Printer Frame and the Lower

• 2-79 •

RMAN-QLS-002 rev. A Repair Procedures

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Contents Mobile Printers Proprietary Statement Product ImprovementsContents QL series configurations and Parts Description Operating ModesPrinting Technology CommunicationsDiagnostic Tools Introduction to Label VistaSample Configuration Label Printing a Diagnostic LabelCreating a Configuration Label Peripherals installed Configuration Label Example Starting Label Vista Using Label VistaEquipment Required For Label Vista Equipment Required Running The SoftwareAdditional information Using the QL Product Configuration CodeQL Component Replacement Procedures Optional LCD Control Panel TroubleshootingStandard Control Panel Troubleshooting Topics No powerPoor or faded print or flashing RMAN-QLS-002 rev. a Repair Procedures QL220/220 Plus Repair Path QL320 & QL420 Repair Path MLBTools and Supplies Storage and HandlingInstalling the Media Cover Media Cover, QL 220- RK18236-1 & QL220 Plus- RK17735-015Tools Needed Removing the Media CoverRMAN-QLS-002 rev. a Repair Procedures Media Cover, QL 320, QL 320 Plus & QL 420,QL 420 Plus Model Kit p/n CommentsInstalling the Media Cover RMAN-QLS-002 rev. a Repair Procedures Media Guide Plate Assembly, QL220/220 Plus Removing the Media Guide Plate AssemblyInstalling 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 Media Guide Assembly, QL420/420 Plus Kit p/n Description TypeModule Remove the Media Support Disks Install new Media Support DisksMedia Support Disks, QL Series Changing the Media Core Size Changing Media typeMedia Guide Rollers, QL420/QL 420 Plus AN16753-003 Replacing the Media RollersInstalling the Gear and Platen AN16792-008- Installing the Peeler BarAN16792-009- Installing the Scraper Platen/Gear Kits, QL220/QL 220 Plus AN16972-008Installing the Scraper Platen/Gear Kits, QL320/320 Plus- AN16861-013 & AN16861 014Replacing the Platen Assembly Platen/Gear Kits, QL420/420 Plus- AN16753-021Introduction PreparationRemove the old Platen Assembly Upper Housing /Wireless Modules-QL220 & QL 220 Plus Removing the Upper HousingInstalling the Upper Housing Set New ParametersUpper Housing, QL320- RK18233-1 Installing the Upper HousingUpper Housing, QL420/420 Plus- AN16753-007 Assemble the P.C. Board CoverHousing, Upper p/n DA16394-1 Assemble P.C. Board CoverInstall the Upper Housing Assemble the Sensor Support Remove the Upper HousingLabel Presence Sensor, QL320- AN16861-015 Install Label Present Sensor Option Re-install the Upper HousingInstalling a Wlan Radio and Antenna Install the RadioFinish the Assembly Assemble the AntennaQL 320/320 Plus & QL 420/420 Plus Wireless Modules Procedure OutlineRemoving 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 Installing the Printer Frame Printer Frame, QL220/220Plus- AN16972-001Install the new Printer Frame Assembly Removing the Printer FrameRMAN-QLS-002 rev. a Repair Procedures From # of connections CPU Connector # Connector Door, QL 220 /QL220 Plus AN16972-021 Remove the Connector DoorAttach the new Connector Door Remove the Lower CoverConnector Door, QL420 & QL420 Plus- AN16753-020 Install the Connector DoorInstalling the Motor Motor,QL220 & QL 220 Plus AN16972-002Motor, QL 320/320 Plus & QL420/420 Plus- RK18251-1 Removing the MotorFrom # of connections CPU Connector # Installing the Printhead Printhead, QL220- RK18278-1 & QL 220 Plus- RK17735-016Printhead, 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 Installing the Latch Latch, QL 220/QL 220 Plus- AN16972-004RMAN-QLS-002 rev. a Repair Procedures Latch, QL 320/ QL 320 Plus- AN16861-025 Latch, QL 420/ QL 420 Plus- AN16753-011 Removing the LatchLatch Assembly Installing the Peeler Shaft and Roller Removing the Peeler Shaft and RollerInstalling the MLB Removing 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 Installing the Belt Clip Removing the Belt ClipQL220 QL320 QL420AN16753-010 Install the D-Rings AN16753-009 Install the Carrying StrapInstalling the D Rings Installing the BushingsRemoving the D Rings Removing the BushingsInstall the Kickstand QL 220 ilustrated Removing the Battery Pack Installing the Battery PackUsing the Product Configuration Code Component Replacement ProceduresEurope Factory Repair and Parts Ordering ProcedureRepair Services contact Information USA QL 220 Product Configuration Code PCC PCC NotesAccessory Parts not illustrated PCC ExampleQL 220 & 220 Plus Replacement Kits KIT RPR QL2 Media Guide W/BELTShaded items are not illustrated QL 220 & 220 Plus Parts Printer Mechanism Exploded ViewQL 220 & 220 Plus Parts- Unit Exploded View QL 320 & 320 Plus Product Configuration Code PCCInterpreting the PCC Code QL 320 & 320 Plus Replacement Kits Assy Module Irda QL3/4 QLKIT RPR QL 320 Media GUIDE/MW Unit Exploded View Pcmcia Radio Options QL 420 & 420 Plus Product Configuration Code Parts Not Illustrated QL 420 & 420 Plus Replacement Kits KIT Repair QL4 PRINTHD/SENSORSelf TAP SCREW, M3X6, QTY RMAN-QLS-002 rev. a Replacement Kits 130 Pcmcia Option