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Zebra Technologies ZP 450 A EPL label format was sent to, but not recognized by, the printer.

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Troubleshooting

Print Quality Problems

12/8/2010 ZP 450 User Guide P1031442-001

A EPL label format was sent to, but not recognized by, the printer.

• Is the printer in pause mode? If so, press the Feed button.

• If the printer has label dispensing enabled, the printer may be waiting for the label to be

removed. The liner/web must be properly threaded through the label dispenser mechanism

(peeler) to correctly operate in label dispense mode, refer to Printing in Dispenser Mode

on page 29.

• If the status LED is on or flashing, refer to What the Status Ligh t is Telling You on page 46.

• Make sure the data cable is correctly installed.

• A communic ations prob lem has occ urred. Fir st, make s ure that the correct

communications po rt (USB) on the co mputer is select ed. Refer to Connecting your

Printer to a Computer onpage17 in the Getting Started section.

Contents

Main Page iii iv FCC Compliance Statement Environmental Management Page vi Who Should Use This Document How This Document Is Organized vii About This Document Contacts Contacts Technical Suppo rt via the Internet is available 24 hours pe r day, 365 days per year. E-mail address: emb@zebra.com Subject line: Emaillist viii Document Conventions Contents x Introduction ZP-Series Thermal Printers Whats in the Box? Unpack and Ins pect the Printer Inspecting the Printer Look at the outside of the printer and make sure that all parts are present. After opening the printer, check the media compartment. Opening the printer Printer Features Closing the printer Reporting Damage Mini-CDs in Printer Storage Slot Getting Started Attaching Power Modes of Pri nting Loading Rol l Media Preparing Media Placing the Roll in the Med ia Compartment Page Operator Controls Power Swi tch Active Power Light Feed Button Status Light Printing a Test Label 15 Pre-install Windows Printer Drivers PlugNPlay (PnP) Printer Detection and Windows operating systems Universal Serial Bus (USB) Device Communications 16 Serial Port and Windows operating systems Ethernet Connecting your Printer to a Computer Interface Cable Requirements Page 19 Serial Communicati ons Autobaud ZPL ^SC Comman d EPL Y Command Resetting the Default Serial Port Parameters 2. While the status LED rapidly flashes amber a nd green, press the feed baud, NO parity, 8 data bits, 1 stop bit and a HARDWARE and SOFTWARE (merged) data Page 22 Ethernet Ethernet Status/Activity Indicators 23 Communicating with the Printer detection at this time. Universal Serial Bus (USB) Communications USB Printer Detectio n and Windows operating systems. Serial Port and Windows operating systems Page Operations and Options Thermal Printing Long Term Printer In-activity or Storage Replacing S upplies Determining Thermal Media Types To perform a media scratch test, complete these steps: Adjusting the Print Width Adjusting the Print Quality Sending Files to the Printer Media Sensing Printing in Dispenser Mode Page Page Page Printing on Fan-Fold Media Page ZebraNet 10/100 Internal (Wired) Print Server Option Printer Network Configuration Status Label Maintenance This section prov ides routine cl eaning and mainten ance procedures . Cleaning Cleaning the Printhead Cleaning the Media Path 41 Sensors Cleaning th e Platen Page Page Troubleshooting Status Light De scriptions Status Light Error Resolutions 6. The printer is paused. 7. The printhead is over temperature. 8. FLASH memory is not programmed. 9. The printhead or motor has had a critical failure. 10. The printer is defragmenting memory. Print Q uality Pr oblems No print on the label. The printed image does not look right. There are long tracks of missing print (blank vertical lines) on several labels. The printing does not start at the top of the label or misprinting of one to t hree labe ls. A ZPL label format was sent to, but not recognized by, the printer. A EPL label format was sent to, but not recognized by, the printer. Manual Calibration Troubleshooting Tests Resettin g the Factory Default Values Communications Diagnostics Page Troubleshooting Feed Button Modes Feed Button Modes Amber - Red Flashing Green Amber www.ups.zebra.com Page Page Page Universal Serial Bus (USB) Interface Parallel Interface PRINTER DB-25 Pin No. Centronics Pin No. DB-25 to Centronics (Cable) Page Serial Port Inter face Serial Port Interface 64 Connecting the Printer to a D TE Device Connecting the Printer to a DCE Device B 66 Managing t he ZPL Printer Configu ration ZPL Printe r Configurat ion Format ZPL Configur ation Status to Command Cross- reference Page Page Printer Mem ory Management and Re lated Status Reports ZPL Programming for Memory Management