Instruction/ maintenance manual of the product GX420t Zebra
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User Guide Zebra ® GX420t™ / GX430t™ Desktop Thermal Printer.
ii 980612-001 Rev . C GX420t™ / GX430t™ User Guide 8/4/10.
iii 8/4/10 GX420t™ / GX430t™ User Guide 980612-001 Rev . C ©2010 ZIH Corp. G-Series,GX420t, GX4 30t, ZBI, ZBI 2.0, ZBI-Developer , ZebraDesigner , Uni-Ribbon, ZebraNet, EPL, EPL2, ZPL, ZPL II, Op.
iv 980612-001 Rev . C GX420t™ / GX430t™ User Guide 8/4/10 FCC Compliance St atement This device complies with Part 15 rules. Oper ation is subject to t he following two conditions: 1.
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C About This Document This section provides you with contact informat io n, document structure and orga nization, and additional refere nce documents. Content s Who Should Use This Document . . . . . .
About This Document Who Shoul d Use This Do cument vi 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Who Should Use This Document This User Guide is intended for use by any pe rson who needs to operat e or to troubleshoot problems with the printer.
vii About This Document Contacts 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Contact s T echnical Support via the Inte rnet is avai lable 24 h ours per day , 365 days per year . Web Si te : www .zebra.com E-mail Back T echnical Library: • E-mail address: emb@zebra.
About This Document Document Conventions viii 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Document Conventions The following conventions are used throughout this docume nt to convey cer tain information. Alternate Color (online only) Cross-refere nc es contain hot links to other sections in t his guide.
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Contents About This Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Who Should Use This Document . . . . . . . . . . . . . . . . . . . . . . .
x 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 3 • Print Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Determining Printer Configuration . . . . . . . . . . . . . . . . . . . . . .
xi 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Asian Fonts - Printer Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Zebra® KDU — Printer Accessory . . . . . . . . . . . . . . . . . . . .
xii 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 C • Appendix: ZPL Conf iguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 19 Managing the ZPL Printer Configuration . . . . . . . . . . . . . . . . . . . . . . .
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 1 Introduction This section describes what you get in your sh ipping box and provid es an overview of printer features. This includes procedures that describe how to open and close the printer and report any problems.
Introduction GXGK Series Thermal Printers 2 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 GXGK Series Thermal Printers The Zebra ® GX models are the Best in Class™ desktop thermal printers w ith t he widest range of features.
3 Introd uction GXGK Series Thermal Printers 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C •Z e b r a ® ZBI 2.0™ (Zebra BASIC Interpreter) pr ogramming language. ZBI allows you to create custom printer operatio ns that can automate processes, use peripherals (i.
Introduction What’s in the Box? 4 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 What’ s in the Box? Save the carton and all packing materials in case you need to ship or store the printer later . After unpacking, make sure you have a ll part s.
5 Introd uction What’s in the Box? 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Y o ur Printer Opening the p rinter T o access the media comp artment, you must open the printer . Pull the release latches towards you and lift the cover . Check the media comp artment for loose or damaged components.
Introduction What’s in the Box? 6 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Printer Features Sensor Peel Bar Platen Roller Printhead BlackLine Sensor Ribbon Trailer Sensor (hidden from vi.
7 Introd uction What’s in the Box? 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Moveable Blackline Sensor (Option) Media Cutter (Option).
Introduction What’s in the Box? 8 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Wireless Printer Display and Controls (Wi-Fi and Bluetooth Options).
9 Introd uction What’s in the Box? 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Operator Controls Power Switch Press up to turn ON or down to turn OFF the printer . Feed Button • T ap the Feed button once to forc e the printer to feed one blank label.
Introduction What’s in the Box? 10 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 S t atus Light Located on the top case next to the feed bu tton, the status light functions as a printer operational indicator (see S tatus Light Descriptions on page 96 ).
11 Introd uction What’s in the Box? 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Closing the printer 1. Lower the top cover . 2. Press down until the cover snaps closed.
Introduction What’s in the Box? 12 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Notes • ___________ _________ _________ ___________ _________ _________ _________ ___________ _________ ____.
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 2 Getting Started This section describes how to set up your prin ter for the first time and use t he most common operating procedures for loading media. Content s Attaching Power . . . . . . . . . .
Getting St arted Attaching Power 14 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Att aching Power 1. Make sure the printer’ s power switch is in the of f position (down). 2. Insert the AC power cord into the power supply . 3. Plug the other end of the cord into an appr opri ate AC electrica l outlet.
15 Getting Started Loading Roll Media 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Loading Roll Media When you load me dia, you must pl ace the roll onto the media hangers. Y ou must use the correct medi a for the type of printing you require.
Getting St arted Loading Roll Medi a 16 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Placing the Roll in the Media Comp artment 1. Open the printer . Remember that you need to pull t he release latch leve rs toward the front of the printer . 2.
17 Getting Started Loading Roll Media 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 3. If your printer includes the mo veable blackline sensor option, ve rify that the se nsor is aligned in th e center defa ult position. This is the standard operatin g position for media sensing.
Getting St arted Loading Roll Medi a 18 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 4. Pull the media so that it extends out of the front of the pri nte r . V erify the roll turns freely . The roll must not sit in the bottom of the media compartmen t.
19 Getting Started Loading Transfer Ribbon 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Loading T ransfer Ribbon T ransfer ribbons come in several varieties and in some cases colo rs to match your appl ication needs. Genuine Zebra ® transfer ribbons are sp ecifically designe d for your print er and Zebra brand media.
Getting St arted Loading Transfer Ribbon 20 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 1. W ith the printer open, place a new ribbon roll on printer ’ s lower ribb on supply spindles. Rotate the roll unt il the notche s align and lo ck into the lef t side of the supply hub.
21 Getting Started Loading Transfer Ribbon 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 3. Pull the tra nsfer ribbon’ s leader off the roll and attach it with the adhesive strip on the leader to the empty ribbon co re on the supply spindle. Ce nter the ribbon on the ribbon core.
Getting St arted Loading Transfer Ribbon 22 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 4. Rotate the thumb wheel on the left side of the supply spindle towa rds the rear of the printer until the ri bbon is pu lled t ight across the printhead.
23 Getting Started Printing a T est (Printer Configuration) Label 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Printing a T est (Printer Configuration) Label Before you connect the printer to your computer , make sure that the pri nter is in proper working order .
Getting St arted Pre-install Windows® Printer Drivers 24 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Pre-inst all Windows ® Printer Drivers Zebra is changing the way you install and use your printer with your W i ndows based PC systems.
25 Getting Started Pre-install Windows® Printer Drivers 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Serial Port and Windows ® operating systems The W indows operating sy stem default settings for the seria l port communication closely match the printer ’ s defaults settin gs with on e exce ption; the data Flow Contr ol settings.
Getting St arted Connecting your Printer to a Computer 26 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Connecting your Printer to a Computer The Zebra ® G-Series™ printers supp ort a variety of interface options and configurations. These include: Universal Ser ial Bus (USB) interface, RS23 2 Serial, Parallel (IEEE 1284.
27 Getting Started Connecting your Printer to a Computer 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C USB Interface Requirement s Universal Seri al Bus (version 2.0 compliant) prov ide s a fast interf ace that is compatible wi th your existing PC hardware.
Getting St arted Connecting your Printer to a Computer 28 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Serial Communications The printer automatically detects and switches the serial port to match common serial port cabling and signal connection co nfigurations for DTE and DCE communications.
29 Getting Started Connecting your Printer to a Computer 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C EPL Y Command Use the serial port setup ( Y ) command t o change the communic ations set tings on the printer .
Getting St arted Connecting your Printer to a Computer 30 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Parallel Port The required cable must have a 25 pin “D” type (DB-25P) male co nnector on one and a Centronics o n the end (IEEE 1284 A-B pa ralle l interface spec ification).
31 Getting Started Connecting your Printer to a Computer 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Ethernet The printer requ ires UTP RJ45 Ethe rnet cable rated CA T -5 or better . For more information on co nfiguring your pr inter to run on a co mpatible Ethernet base d network, see the ZebraNet® 10/100 Internal Print Server manual.
Getting St arted After Y our Printer is Connected 32 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Af ter Y our Printer is Connected Now that you have basic communicati on to your printer , you may want to test printer communications and then install ot her printer related applications, dri vers or utilities.
33 Getting Started After Y our Printer is Connected 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C T est Print with a Copied ZPL Command File for Non-W indows Operating Systems: 1. Create a text fil e with the fo ll owing ASCII three characters: ~WC 2.
Getting St arted After Y our Printer is Connected 34 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Notes • ___________ _________ _________ ___________ _________ _________ _________ __________.
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 3 Print Operations This section provides medi a an d print handl ing, font and langu age support, an d the setup of less common printe r configurations. Content s Determining Printer Configuration .
Print Operations Determining Printer Configuration 36 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Determining Printer Configuration The G-Series printer uses a ZP L printer configuration sta tus label to report the printe r ’ s configuration status fo r both EPL and ZPL oper ations.
37 Print Operatio ns Modes of Printing 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Modes of Printing Y ou can operate this printer in many di fferent modes and media configurations: • Direct thermal printing (which uses heat sensitive media to print).
Print Operations Print Media T ypes 38 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 T able 1 • T ypes of Media Roll and Fanfold Media Media T ype How It Looks Description Non-Continuous Roll Media Roll media is wound on a core that can be 0.
39 Print Operatio ns Replacing Supplies 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Determining The rmal Media T ypes Thermal transfer media requires ribbon for printing while dir ect thermal medi a does not. T o determine if ribbon must be used with a pa rticular medi a, perform a media scra tch test.
Print Operations Adjusting the Print Width 40 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Replacing a Partially Used T ransfer Ribbon T o remov e used transfe r ribbon, perfor m the followi ng steps. 1. Cut the ribbon from the take-up roll. 2.
41 Print Operatio ns Media Sensing 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Media Sensing The G-Series printer has automatic media sens ing capability . The printer is designed to continuously check and adjust me dia length sensing for minor va riations.
Print Operations Ribbon Overview 42 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Ribbon Overview Ribbon is a thin film that is coated on one side with wax, resin, or wax resin, which is transferred to the media during t he thermal tr an sfer process.
43 Print Operatio ns Ribbon Overview 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 4. Observe the results. Did flakes or partic les of ink from the ribbon adhere to the labe l? Ribbon Scratch T est Perform the ribbon scratch test when labels are unavailable.
Print Operations Printing on Fa n-Fold Medi a 44 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Printing on Fan-Fold Media Printing on fan-fold medi a requires you to adjust the media guide’ s stop position. 1. Open the top cover . 2. Adjust the media guide stop position with the green thumb wheel.
45 Print Operatio ns Printing on Fan-F old Media 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 3. Insert the media through the sl ot at the rear of the printer . 4. Run the media between the media guide and roll holders. 5. Close the top cover .
Print Operations Printing with Externally Mo unted Roll Media 46 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Printing with Externa lly Mounted Roll Media The G-Series printer accommodates externally mount ed roll media similar to the printer ’ s support of fan-fold media.
47 Print Operatio ns Fonts and Y our Printer 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Font s and Y our Printer The G-Series™ printer supp orts your language and font requir ements with a variety of internal fonts, on-board font scaling, interna tional font sets a nd character code page support, Unicode support, and font downlo ad.
Print Operations Fonts and Y our Printer 48 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Localizing the Printe r with Code Pages The G-Series printer supports two sets of lang uage, region and charac ter se ts for permanent fonts loaded into the printer for each printer programming langu age, ZPL and EPL.
49 Print Operatio ns S tand Alone Printing 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C S t and Alone Printing Y our printer can be configured to work without bein g attached to a computer . The printer has the ability to automatically run a single label form.
Print Operations Sending Files to the Printer 50 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Sending Files to the Printer Graphics, fonts and program ming files can be se nt to the pr inter f.
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 4 Printer Options This section covers the common printer options and accessories with brief descriptions and how to get you started usin g or configuring your p rinter option or a ccessory . Content s Label Dispenser Option .
Printer Options Label Dispenser Option 52 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Label Dispenser Option The factory installed label dispenser option allows you to print a label with backing (liner/web) being removed from the label as it prints, ready for applic ati on.
53 Printer Options Label Dispenser Option 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 2. Lift the liner over the top of the printer and open the dispenser door .
Printer Options Label Dispenser Option 54 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 4. Close the dispenser door . 5. Press the Feed button to advance the media. 6. During the print job, the print er will peel of f the backing and present a single label.
55 Printer Options Moveable Blackline Sensor Opti on 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Moveable Blackline Sensor Option The factory installed moveable b lackline sensor option allow.
Printer Options Moveable Blackline Sensor Option 56 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Adjusting the Moveable Sensor for Black Marks or Notches The blackline sensor looks for non-ref.
57 Printer Options Moveable Blackline Sensor Opti on 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 2. Slide the moveable sensor from the cente r defa ult position to align with the black marks. The arrow on the moveable sens or shou ld line up with t he right edge of the blac k mark.
Printer Options Moveable Blackline Sensor Option 58 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Adjusting the Moveable Sens or for Web (Gap) Sensing The moveable se nsor supports the web/g ap positions use d by the legacy Zebra ® desktop printer models and for som e non standard medi a configurations.
59 Printer Options Cutter Option 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Cutter Option The printer supports a factory installed media cut ter option for full width cutting of label liner , tag or receipt media. These cut ter options are al l supported in a single cutter housing design.
Printer Options Cutter Option 60 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Loading Media with the Cutter Option 1. Open the printer . Remember that you need to pull t he release latch leve rs toward the front of the printer . 2. Open the media rol l holders.
61 Printer Options Cutter Option 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 3. If your printer includes the mo veable blackline sensor option, ve rify that the se nsor is aligned in the slightly right of c enter defa ult posi tion. This is the standard operating position for medi a sensing.
Printer Options Cutter Option 62 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 4. Thread the media through the cutter ’ s inside slot so that it extends ou t of the front of the printer . V erify the roll turns freely . The ro ll must not si t in the bottom of the media compartment.
63 Printer Options ZebraNet® 10/100 In ternal (Wired) Print Server Option 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C ZebraNet ® 10/100 Internal (Wired) Print Server Option The ZebraNet ® 10/100 Internal Print Se rver (PS) is an optional fa ctory installed device that connects the network an d your ZebraLink TM -enabled prin ter .
Printer Options ZebraNet® 10/100 Internal (Wi red) Print Server Option 64 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Printer Network Configuration S t atus Label G-Series™ printers with t.
65 Printer Options ZebraNet® Internal Wireless Print Server Opti on 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C ZebraNet ® Internal Wireless Print Server Option The ZebraNet ® Internal W i.
Printer Options ZebraNet® Internal Wire less Print Server Option 66 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Printer Network Configuration S t atus Label G-Series™ printers with the Zeb.
67 Printer Options Bluetooth Option 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Bluetooth Option Bluetooth is an optional fac tory installed (inter nal wireless) device that can connect to other Bluetooth enabled devices and computers. The B luetooth radio inside G-series pr inters complies with Bluetooth Specification 2.
Printer Options Bluetoot h Option 68 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Prep aring the Windows PC for Bluetooth communication. • Install a Bluetooth dongle or verify th at the exis ting Bluetooth is enabled. Note that some systems with on-boa r d Bluetooth shar e the Bluetooth radio with W i-Fi.
69 Printer Options Bluetooth Option 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 5. From the new ‘B luetooth Prin ter Port’ window , select your printer from the Blue tooth devices in the list. Thi s may take severa l minutes. Click on the ‘Connec t’ button.
Printer Options RTC and Full Flash Memory Option 70 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 RTC and Full Flash Memory Option Printers with the factory inst alled R TC (Real T ime Clock) a.
71 Printer Options Asian Fonts - Printer Accessory 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Asian Font s - Printer Accessory Asian font sets are downlo aded into the printer by the user or integrat or . Y our G-Series printer must have the R TC and Full Flas h Printer Memory option inst alled to support the lar ge Asian font files.
Printer Options Zebra® KDU — Printer Accessory 72 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Zebra ® KDU — Printer Accessory The KDU (keyboard display unit) is a smal l terminal unit that inte rfaces with the printer for accessing EPL label forms stored in the printer .
73 Printer Options KDU Plus™ — Printer Accessory 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C KDU Plus™ — Printer Accessory The KDU Plus is a terminal device with memory for storing files and ma intaining one or more remote printers. The KDU Plus has a larger lapto p style keyboa rd than the Zebra’ s origin al KDU design.
Printer Options ZBI 2.0™ — Zebra Basic Interpreter 74 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 ZBI 2.0™ — Zebra Basic Interpreter Customize and enhance your printer with ZBI 2.
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 5 Control Panel Operation This section desc ribes the operati on, navigatio n an d paramete rs displayed by printers e quipped with the LCD control panel option. Content s LCD Display Overview . . .
Introduction LCD Display Overview 76 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 LCD Display Overview The LCD display for G-Series pr inters with the W i-Fi (W ireless ) or Bluetooth option s.
77 Introd uction Normal Operation Display 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Normal Operation Display When the printer is On and Ready , the LCD disp lay will resemble one of the e xamples shown in the figure below . Display Settings The display has a back light f eature which allows viewing the display in dark environments.
Introduction Printer Settings 78 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Printer Settings The user selecta ble and progra mmable Print er settings are sh own in the tabl e below .
79 Introd uction 802.1 1 WLAN Settings 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 802.1 1 WLAN Settings The programmable 802.11 WLAN sett ings are shown in the t able below . Bluetooth Settings The programmable Bluetooth set tin gs are shown in the tabl e below .
Introduction Bluetoot h Settings 80 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Notes • _ _________ ___________ _________ _________ ____________ _________ ______ ___________ _________ _____.
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 6 Maintenance This section provides routine cleaning and maintenance procedures. Content s Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Cleaning 82 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Cleaning When you clea n the printe r , us e one of the followi ng supplies that best suits your needs: Y ou can obtain cleaning supplies at www .zipzebra.com . The cleaning process takes just a couple of minutes using the steps outlined be low .
83 Maintenance Cleaning 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Cleaning the P rinthead Always use a new cleaning pen on the printhead (an old pen carries contami nants from its previous uses that may damage the printhead). When you load new media, you can also clean the printhead.
Maintenance Cleaning 84 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Media Path Considerations Use a cleaning swab to re move debris, dust or cr ust that has bui lt-up on the holders, guides and media path surfaces. 1. Use the alcohol in the c leaning swab to so ak the debris to break up the adhesive .
85 Maintenance Cleaning 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Sensor Cleaning Dust can accumulate on the media sensors. 1. Gently brush away dust; if ne cessary , use a dry swab to brus h away dust. If adhesives or other contaminates remain, use a n alco hol mo istened swab to break it up.
Maintenance Cleaning 86 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Platen Cleaning and Replacement The standard platen (dri ve roller) normally does no t require cleaning. Paper an d liner dust can accumulate without effec ting print operations.
87 Maintenance Cleaning 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 3. Lift the platen out of th e printer ’ s bottom frame. 4. Clean the platen with t he alcohol moistened sw ab. Clean from the center ou t. Repeat this process until the all of t he roller surface has been cl eaned.
Maintenance Cleaning 88 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 7. Align the platen with the gear to the left and lower it into the printer ’ s bottom frame. 8. Rotate the plat en bearing latch release tabs down on the right and left side s towards the rear of the printer and snap them into place.
89 Maintenance Replacing the Printhead 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Replacing the Printhead If you need to re place the printhe ad, read the procedure and re view the remova l and installation steps before a ctu ally replacing the print head.
Maintenance Replacing the Printh ead 90 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 3. Use a blunt tipped tool to pres s the release tab on the right side an d then th e left sid e of the printhead. The tool diameter can be from 0.10 to 0.15 inches (2.
91 Maintenance Replacing the Printhead 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 4. Gently but firmly pull the two printhead cable bundles’ conn ectors off of the printhead. 5. Gently but firmly pull the green ground wire off th e printhead.
Maintenance Replacing the Printh ead 92 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Replacing the Printh ead 1. Push the left side prin thead connector int o the printhead. The connector i s keyed to o nly insert one way . 2. Connect the green ground wire to the printhead.
93 Maintenance Replacing the Printhead 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 5. Insert the printhead bracket’ s the tab into slot in the ribbon frame assembly . Align the printhead spring slots to the five posts an d snap the printhead in to the ribbon frame.
Maintenance Replacing the Printh ead 94 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 6. Place the left ha nd side of the ribbon guide in to the ribbon frame. Swing the right side of the ribbon gui de into the sl ot and snap it in to position .
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C 7 Troubleshooting This section provides in formation about printer error reportin g that you might need for printer troublesho oting. Assorted di agnostic test s are included. Content s S tatus Light Descriptions .
T roubleshooting S tatus Light Descriptions 96 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 S t atus Light Descriptions What the St atus Light is T elling Y ou LED St atus and Color Printer St.
97 T roublesh ooting S tatus Light Error Resolutions 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C S t atus Light Error Resolutions The following Sta tus Error Light Resolution numbers correspond to the S tatus Light Description table on the previous page.
T roubleshooting S tatus Light Error Resolutions 98 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 5. The media is out. • Follow the instructions for Loading Roll Medi a on page 15 in the Ge tting S tarted section, and then press the Feed bu tton to resume printing.
99 T roublesh ooting Print Quality Problems 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Print Quality Problems No print on the label. • The media may n ot be direct ther mal media when pr inting with out ribbon (i.e. the rmal transfer). The media may no t be direc t thermal med ia.
T roubleshooting Print Quality Problems 100 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 There are long tracks of missing print (blank vertical lines) on several labels. • The printhead is dirty . Clean the printhead. • The printhead elements are damaged.
101 T roublesh ooting Print Quality Problems 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C A EPL label format was sent to, bu t not recognized by , the printer . • Is the printer in pause mode? If so, press the Feed button. • If the printer has label dispensing enabled, th e printer may be waiting for the label to be removed.
T roubleshooting Manual Calibration 102 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Manual Calibration Manual calibration is recommende d whe never you are using pre-pr inted media or if the printer will not correctly auto ca librate. 1. Make sure media is loaded.
103 T roublesh ooting T roubleshooting T ests 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C T roubleshooting T est s Printing a Configuration Label T o prin t out a listin g of the print er ’ s curre nt co nfiguration, refer to th e one-flash sequence in Feed Button Modes on page 106 in this section.
T roubleshooting Resetting the Factory Default V alues 104 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Resetting the Factory Default V alues Sometimes, resetting the printer to the factory default s may solv e some problems. Re fer to the four-flash sequence in Feed Button Modes on page 106 in this section.
105 T roublesh ooting Communications Diagnostics 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C The following examp le of a communi cations DUMP mode pr inted out. The print out displays hexadecimal d ata 00h-FFh (0-255 decimal) with a unique character fo r each he xadecimal value displayed above the hexadeci mal data.
T roubleshooting Feed Button Modes 106 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Feed Button Modes Power Off Modes W ith the printer power off, pr ess and hold the Feed button w h ile you turn on the power.
107 T roublesh ooting Feed Button Modes 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Power On Modes W ith the printer power on and top cove r closed , press and hold the Feed button for several seconds. The green status LED will flash a number of times in sequence.
T roubleshooting Feed Button Modes 108 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Notes • ___________ _________ _________ ___________ _________ _________ _________ ___________ _________ __.
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C A Appendix: Interface Wiring This section provides printer int erface connection information. Content s Universal Serial Bus (USB) Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Universal Serial Bus (USB) Interface 110 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Universal Serial Bus (USB) Interface The figure below displays the cable wiri ng re quired to use the printer’ s USB interface. The printer requ ires cable or ca ble packaging that bears the “ Certified USB™” mark to guarantee USB 2.
111 Parallel Interface 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Parallel Interface The printer ’ s parallel interfa ce uses the IEEE 12 84-A to 1284-B parallel interfac e cables. the host connector has a DB-25 pin male connector . The printer connector is a Centroni cs style connector .
Ethernet Interface 112 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Ethernet Interface This interface requires a UTP R J45 Ethernet cable rated CA T - 5 or better .
113 Serial Port Interface 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Serial Port Interface The maximum current available through the serial and/or paralle l port is not to exceed a total of 0.75 Amps. When XON/XOFF handshaking is selected, data fl ow is controlled by the ASCII control codes DC1 (XON) and DC3 (XOFF).
Serial Port In terface 114 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Connecting the Printer to a DTE Device Connecting the Printer to a DCE Device DB-25S Connector to DTE Device (PC) DB-9P .
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C B Appendix: Dimensions This section provides external pri nter dimensions. Content s External GX Printer Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External GX Printer Dimensions 116 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 External GX Printer Dimensions 7.90 7.50 2.46 10.05 4. 05 0 . 52 9 .
117 External GX Printer Dimensions 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C Label Dispenser Cutter 7.90 7.50 2.46 10.25 10.96 7.90 7.50 2.46 11.
External GX Printer Dimensions 118 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Wireless Printer Wireless Printer with Label Dispenser Wireless Printer with Cutter 7.
8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C C Appendix: ZPL Configuration This section provides a basic overview of managing printer configuration, the Configuring Status Printout, and Pr inter Memory P rintouts. Content s Managing the ZPL Printer Configuration .
Managing the ZPL Prin ter Configuration 120 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Managing the ZPL Printer Configuration The ZPL printer is designed to al low you to change printer settings dynamically for fast first label out printing.
121 ZPL Configuration S tatus to Command C ross-reference 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C ZPL Configuration S t atus to Command Cross-reference The Printer Configuration Label, shown below , provides a listing of a majority of t he configurations settings that can be se t by ZPL command.
ZPL Configuration S tatus to Command Cross-reference 122 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 T able 2 • ZPL Commands and Configurat ion Receipt Callout Cross-Reference From this poi.
123 ZPL Configuration S tatus to Command C ross-reference 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C The configuration settings listed here resume after the T AKE LABEL sensor value. The se listings contain printer feature s seldom changed from default or provide status information (e.
Printer Memory Management and Related S tatus Reports 124 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Printer Memory Management and Related St atus Report s T o help you manage pr inter resou.
125 Printer Memory Management and Related S tatus Reports 8/4/10 GX420t / GX430t User Guide 980612-001 Rev . C T able 4 • Object Management and St atus Report Commands Command Name Description ^WD P.
Printer Memory Management and Related S tatus Reports 126 980612-001 Rev . C GX420t / GX430t User Guide 8/4/10 Notes • ___________ _________ _________ ___________ _________ _________ _________ _____.
An important point after buying a device Zebra GX420t (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Zebra GX420t yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Zebra GX420t - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Zebra GX420t you will learn all the available features of the product, as well as information on its operation. The information that you get Zebra GX420t will certainly help you make a decision on the purchase.
If you already are a holder of Zebra GX420t, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Zebra GX420t.
However, one of the most important roles played by the user manual is to help in solving problems with Zebra GX420t. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Zebra GX420t along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
