Zebra Technologies Q3DLUBA000002, Q4DLU1B000000 specs

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 Statement Contents QL series configurations and Parts Communications DescriptionOperating Modes Printing Technology Introduction to Label Vista Diagnostic Tools Sample 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 Required Additional information Using the QL Product Configuration CodeQL Component Replacement Procedures Optional LCD Control Panel TroubleshootingStandard Control Panel No power Troubleshooting Topics Poor or faded print or flashing RMAN-QLS-002 rev. a Repair Procedures QL220/220 Plus Repair Path MLB QL320 & QL420 Repair Path Storage and Handling Tools and Supplies Removing the Media Cover Installing the Media CoverMedia Cover, QL 220- RK18236-1 & QL220 Plus- RK17735-015 Tools Needed RMAN-QLS-002 rev. a Repair Procedures Model Kit p/n Comments Media Cover, QL 320, QL 320 Plus & QL 420,QL 420 Plus Installing the Media Cover RMAN-QLS-002 rev. a Repair Procedures Removing the Media Guide Plate Assembly Media Guide Plate Assembly, QL220/220 Plus Installing 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 Plus Module Remove the Media Support Disks Install new Media Support DisksMedia Support Disks, QL Series Changing Media type Changing the Media Core Size Replacing the Media Rollers Media Guide Rollers, QL420/QL 420 Plus AN16753-003 Platen/Gear Kits, QL220/QL 220 Plus AN16972-008 Installing the Gear and PlatenAN16792-008- Installing the Peeler Bar AN16792-009- Installing the Scraper Platen/Gear Kits, QL320/320 Plus- AN16861-013 & AN16861 014 Installing the Scraper Preparation Replacing the Platen AssemblyPlaten/Gear Kits, QL420/420 Plus- AN16753-021 Introduction Remove the old Platen Assembly Removing the Upper Housing Upper Housing /Wireless Modules-QL220 & QL 220 Plus Set New Parameters Installing the Upper Housing Installing the Upper Housing Upper Housing, QL320- RK18233-1 Assemble the P.C. Board Cover Upper Housing, QL420/420 Plus- AN16753-007 Assemble P.C. Board Cover Housing, Upper p/n DA16394-1 Install 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 Option Install the Radio Installing a Wlan Radio and Antenna Assemble the Antenna Finish the Assembly Installing the Wireless Module QL 320/320 Plus & QL 420/420 Plus Wireless ModulesProcedure Outline Removing the Wireless Module Upper 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 Frame Removing the Printer Frame Install the new Printer Frame Assembly RMAN-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 Door Install the Connector Door Connector Door, QL420 & QL420 Plus- AN16753-020 Motor,QL220 & QL 220 Plus AN16972-002 Installing the Motor Removing the Motor Motor, QL 320/320 Plus & QL420/420 Plus- RK18251-1 From # of connections CPU Connector # Printhead, QL220- RK18278-1 & QL 220 Plus- RK17735-016 Installing the Printhead Printhead, 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 Latch RMAN-QLS-002 rev. a Repair Procedures Latch, QL 320/ QL 320 Plus- AN16861-025 Removing the Latch Latch, QL 420/ QL 420 Plus- AN16753-011 Latch Assembly Removing the Peeler Shaft and Roller Installing the Peeler Shaft and Roller Removing the MLB Installing the MLB From # 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 QL320 AN16753-009 Install the Carrying Strap AN16753-010 Install the D-Rings Removing the Bushings Installing the D RingsInstalling the Bushings Removing the D Rings Install the Kickstand QL 220 ilustrated Installing the Battery Pack Removing the Battery Pack Component Replacement Procedures Using the Product Configuration Code Europe Factory Repair and Parts Ordering ProcedureRepair Services contact Information USA PCC Notes QL 220 Product Configuration Code PCC PCC Example Accessory Parts not illustrated KIT RPR QL2 Media Guide W/BELT QL 220 & 220 Plus Replacement Kits Shaded items are not illustrated Printer Mechanism Exploded View QL 220 & 220 Plus Parts QL 220 & 220 Plus Parts- Unit Exploded View PCC QL 320 & 320 Plus Product Configuration Code Interpreting the PCC Code Assy Module Irda QL3/4 QL QL 320 & 320 Plus Replacement Kits KIT 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 Kits Self TAP SCREW, M3X6, QTY RMAN-QLS-002 rev. a Replacement Kits 130 Pcmcia Option