Mark III

Datamax-O’Neil M-Class: Printing Test Labels

by ScanSource Technical Services October 12, 2011 Barcode Printing
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Press TEST Button. Use the FEED and PAUSE buttons to navigate the choices. The choices are Print Quality Label, Ribbon Test Label, Test Label, Validation Label, and Print Configuration. Illustrations of the test formats are below. Once you have chosen the desired test label, press the TEST button. The test label will then print. Print […]

Datamax-O’Neil Mark III: How to Install the Ribbon

by ScanSource Technical Services August 1, 2011 Barcode Printing
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The printer is capable of using C.S.I (Coated Side In) and C.S.O (Coated Side Out) ribbons in the following configurations:   ½” Core Ribbons Ribbon Core Width: 4.3 inches (110mm) Ribbon Width: 1.0 – 4.3 inches (25 – 110mm); Centered on core 1″ Core Ribbons (with Ribbon Core Adapters, see section 2.4.1.) Ribbon Core Width: […]

Datamax-O’Neil Mark III: Ribbon Tension Adjustment

by ScanSource Technical Services August 1, 2011 Barcode Printing
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The adjustable ribbon handler feature, found on printers equipped with the thermal transfer option, allows the optimum amount tension to be supplied by the ribbon supply hub. Adjust the ribbon tension as follows: Turn ‘off’ the printer. Hold the ribbon/ribbon hub to prevent it from turning. Then push in and rotate the Ribbon Tension Adjustment […]

Datamax-O’Neil Mark III: How to Install Label Media (Roll Option)

by ScanSource Technical Services August 1, 2011 Barcode Printing
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Load media as follows: Slide the Media Guides outward. Slide the Media Hangers outward and insert the Roll Media as shown. Allow the Media Hangers to retract and grasp the media roll. Pull out enough media to exit the front of the printer. Adjust the Media Guides so they are lightly touching the edge of […]

Datamax-O’Neil Mark III: How to Install Label Media (Fan-Fold Option)

by ScanSource Technical Services August 1, 2011 Barcode Printing
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Load media as follows: Slide the Media Guides outward. Slide the Media Hangers outward and install the two Media Chute Guides into the Media Hangers. Position the Media Hangers to match the width of the media being used. Slide the Hanger Lock against the Media Hanger to hold this position. Route the media through the […]

Datamax-O’Neil Mark III: How to Clean the Printhead

by ScanSource Technical Services August 1, 2011 Barcode Printing
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If print quality declines (symptoms can include unreadable bar codes or streaks through text and graphics), the typical cause is debris buildup on the printhead which, left unattended, can lead to premature dot failure. Depending upon the supplies and printing parameters used, different cleaning methods are recommended. Proper cleaning is critical. To maintain peak performance […]

Datamax-O’Neil Mark III: LED Indicators and Multifunction Buttons

by ScanSource Technical Services August 1, 2011 Barcode Printing
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The Front Panel consists of two indicator lights and one multifunction button, as detailed in the following sections. LED Indicators Two LED indicator lights provide a quick visual reference of printer operations and conditions, as defined below: Multifunction Button The multifunction button perform different functions depending upon the mode of the printer Still have questions […]

Datamax-O’Neil Mark III: How to Use the Cutter Option

by ScanSource Technical Services August 1, 2011 Barcode Printing
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Load media for cutting (if the printer is equipped with the option) as follows: Load media based on the type you are using. (Roll,  Fan-Fold) Route the media through the opening in the Cutter. If using Thermal Transfer media (ribbon) install it now. Otherwise close the printer’s Cover and press downward until latched. Press the button […]

Datamax-O’Neil Mark III: Interface Connections and Serial Pinouts

by ScanSource Technical Services August 1, 2011 Barcode Printing
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The printer can be connected to the host system via the parallel, serial, Ethernet or USB ports. Cable Requirements Choose the correct cable when interfacing the printer to the host: The Parallel Port (optional) supports parallel communications via a 36-pin male mini-Centronics connector. Bi-directional communications (forward and reverse channels) is supported when an IEEE 1284 […]

Datamax-O’Neil Mark III: How to Replace the Printhead

by ScanSource Technical Services August 1, 2011 Barcode Printing
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If the Printhead becomes damaged or worn, replace it as follows: Turn OFF the printer and remove the ribbon if installed. Lower the Ribbon Handler Assembly. Press outward on the two Printhead Carrier Tabs and rotate the Printhead Carrier down. Press inward on the two Printhead Shield Tabs and rotate the Printhead Shield down. Loosen […]