Zebra Technologies Q3DLUBA000002, Q4DLU1B000000 manual J4 Motor

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MLB, QL 320- AN16861-018, RK18234-1;

QL 320 Plus- RK18465-002

QL 320 Cost Reduced- RK18465-006

You must use an ESD strap and work at a properly grounded workstation (antistatic mat or tray). All electronic components must be placed on an ESD protective tray. If stored, any elec- tronic components must be placed in antistatic bags.

Removing the MLB

1.Turn the printer off and remove the battery pack.

2.Remove the QuickLink Module.

3.Remove the Upper Housing.

4.Remove the Keypad.

5.Unplug all cables from the MLB.

6.Remove the remaining Screw securing the MLB and pull the MLB out of the printer.

Installing the MLB

1.Plug the Head Open Switch cable and the Media Width Sensor (optional) cables into the bottom of the MLB.

From	# of connections	CPU Connector #

Head Open Switch	2	J1 (HEAD)(bottom of board)

Bar Sensor	3 (Flex)	J2 (BAR)

Printhead	28 (Flex)	J3 (PRINTHEAD)
Motor	4	J4 (MOTOR)

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)

Media Width Sensor (optional)	3	J11 (WIDTH)(bottom of board)

Keypad Ground	1 (Flex)	Screw

2.Plug the remaining cables into the MLB per the following table:

Notes:

1 . For ease of assembly, install the Printhead and Motor Cables first, then install the op- tional Media Width Cable.

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

3.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.

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

3.Lower the MLB into the Lower Housing. Insure that the board is pushed up un-

continued

RMAN-QLS-002 rev. A Repair Procedures

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Contents Mobile Printers Product Improvements Proprietary StatementContents QL series configurations and Parts Communications DescriptionOperating Modes Printing TechnologyIntroduction to Label Vista Diagnostic ToolsCreating a Configuration Label Printing a Diagnostic LabelSample Configuration Label Peripherals installed Configuration Label Example Equipment Required For Label Vista Using Label VistaStarting Label Vista Running The Software Equipment RequiredQL Component Replacement Procedures Using the QL Product Configuration CodeAdditional information Standard Control Panel TroubleshootingOptional LCD 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 Removing the Media Assembly Media Guide Assembly, QL320/320 PlusInstalling the Media Assembly Ensure Media Sensor cable is behind holding feature Kit p/n Description Type Media Guide Assembly, QL420/420 PlusModule Media Support Disks, QL Series Install new Media Support DisksRemove the Media Support Disks 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 Label Presence Sensor, QL320- AN16861-015 Remove the Upper HousingAssemble the Sensor Support 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 Keypad Installing the KeypadRemoving the LCD module 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 Printhead, QL 420- RK18252-1 & QL 420 Plus- RK17735-004 Install the new Printhead AssemblyRemove the Printhead 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 CodeRepair Services contact Information USA Factory Repair and Parts Ordering ProcedureEurope 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