Panel Builder System Integrator

January 11, 2021

Variations in the printing or marking method of barcodes and direct part marks (DPMs) - including poor ink distribution, incorrect thermal printer heat settings, or uneven pressure in surface abrasion - can hamper readability. Since no-reads can make production inefficient, it's important to understand the types of print/mark inconsistencies and their causes.

Here, each category of inconsistency will be defined and then some possible solutions discussed.

Types of barcode and mark printing issues

1. Contrast is the difference between the light and dark elements of a barcode, or between the code and its quiet zone (the blank area surrounding a barcode) and other perimeter elements. For example, if the dark elements and the light elements of a DPM are too close in value due to low pressure in the marking process, readability will be poor.

2. Axial non-uniformity refers to the amount of deviation along a symbol’s major axes. (For example, a symbol’s Y-axis could be much larger than its X-axis). This inconsistency of X- and Y-dimensions typically indicates unexpected movement of the substrate as the barcode is applied by a printer or direct part marking device.

3. Grid non-uniformity is the amount of deviation in a barcode’s bar or cell elements from the ideal grid of a theoretical “perfect symbol.” Printing or marking errors that cause grid non-uniformity (usually due to unexpected movement of the substrate during code application) will produce a code that appears skewed or distorted, which may be unreadable by standard decoding devices.

4. Modulation refers to the uniformity between light and dark elements of a barcode. If either set of elements does not have a consistent value, unreadability can result. Like low contrast, this issue is often due to inconsistent distribution of ink for printed codes or uneven abrasion for direct part marks.

5. Print growth is the deviation of symbol element size from the theoretically “perfect” element size for a particular symbol. When a symbol is printed, the ink may bleed when it comes in contact with the substrate, causing an overprint. If there isn’t enough ink or pressure applied by printing or marking equipment, the result may be an underprint.

6. A quiet zone is the area surrounding a barcode that must be kept free of text, marks or other obstacles. When a barcode has been printed outside of the designated quiet zone area and is overlapping with other elements on the substrate, no-reads can result. This issue could be due to misalignment or movement of the substrate in relation to the printing equipment.

7. The reflectance of light from a symbol’s light or dark elements is what lets a barcode reader distinguish symbol elements from the background, as well as light elements from dark elements. Low reflectance may increase the probability that a symbol element may be incorrectly identified as light or dark, causing a no-read when the barcode reader attempts to interpret incorrect element patterns. Low reflectance may be caused by inconsistent print distribution or marking pressure by the equipment.

What can you do about printing inconsistencies?

It’s important to regularly inspect and maintain printing and marking equipment to ensure the production of consistently high-quality barcodes and their correct application to parts. When using ink to print codes, be sure to verify the correct distance of the printhead, clean and unblock printheads and nozzles, and ensure correct speed and setup of the printing process.

If barcodes are produced by laser coding, correct focal distance and a continuous power supply to the equipment ensures high-contrast printing without losses in print distribution or speed. Avoid ribbon wrinkles, verify correct insertion of the ribbon into equipment, and use high-quality technologies to evenly apply barcodes and avoid missing elements.

What can you do about inconsistencies in DPM application?

Direct part marking is accomplished by a number of methods, such as electromechanical etch, laser etch, chemical etch (methods in which codes are “scratched” into the substrate) and dot peen (a percussive method in which the symbol is hammered into the substrate with a metal stylus).

The key to producing high-quality marks by direct abrasion is consistent pressure of the abrading component against the substrate. It’s important to verify the quality of the material used to create the abrasion and the amount of power supplied to the marking equipment to ensure that barcodes are applied uniformly and with consistent pressure.

Source

Changing Scene

  • Prev
EPLAN offers a variety of training courses to help you further your knowledge and make you a better ...
Littelfuse, Inc. recently announced it has acquired Hartland Controls. Headquartered in ...
Rittal Systems Ltd. (Rittal Canada) was recently pleased to introduce their new experienced ...
Power management company Eaton recently announced it has signed an agreement to acquire Tripp Lite, ...
Phoenix Contact Ltd. is proud to announce and welcome Udayan Pandya as the Company’s Head of ...
Robomold Plastic Solutions, a division of Gemini Inc., recently announced that it has partnered ...
EY Canada is pleased to welcome Montreal-based Resolution Inc. to the firm today to enhance its ...

Phoenix Contact Welcomes Udayan Pandya as the Head of Automation Business Area, Industrial Management and Automation (IMA) for Canada

Phoenix Contact Ltd. is proud to announce and welcome Udayan Pandya as the Company’s Head of Business Area, Industrial Management and Automation (IMA). Udayan will be responsible for the activities and performance of the IMA business areas in the Canadian market and will lead Phoenix Contact’s vertical market management activities and develop the organizations' presence and effectiveness in select markets.

Udayan brings over 23 years of experience leading and growing the Industrial Automation business in Canada. Previously, Udayan held the position of Director, Industrial Automation Systems with Siemen’s and most recently, as Vice President with AIS Technologies Group.

Read More


 

Eaton Signs Agreement to Acquire Tripp Lite, Expanding Eaton’s Power Quality Business in the Americas

EatonPower management company Eaton recently announced it has signed an agreement to acquire Tripp Lite, a supplier of power quality products and connectivity solutions including single-phase uninterruptible power supply systems, rack power distribution units, surge protectors, and enclosures for data centers, industrial, medical, and communications markets in the Americas.

Founded nearly 100 years ago, the company is headquartered in Chicago, Illinois. Under the terms of the agreement, Eaton will pay $1.65 billion for Tripp Lite, which represents approximately 12 times Tripp Lite’s 2020 EBITDA and 11 times estimated 2021 EBITDA.

Read More

 

Module_Divider.png

Lean Robotics: Making Robots Work in Your Factory

Lean RoboticsBy Samuel Bouchard

WHY I WROTE THIS BOOK

It was winter 2009, and I was on a mission to sell my startup’s first product, a robotic gripper, to the automotive manufacturers of Michigan. My cofounders and I—three friends from the robotics lab at Laval University—had a straightforward business plan for our new company,Robotiq.

At the time, every robotic gripper had custom-made fingers, so whenever manufacturers wanted to use grippers in their robotics-based assembly lines, they had to go through lots of trial and error regarding custom design and fabrication.

Read More


 

Fanuc America Launches New CRX Cobot Website

FANUC America recently announced the launch of a new e-learning website to educate manufacturers and industry about its CRX collaborative robot.  The site provides online training modules, a deep dive into a wide range of peripheral device and tooling partners, and the latest product information about its CRX cobot lineup. 

CRX PRODUCT FEATURES

FANUC’s new CRX collaborative robots are easy to use and program, safe, flexible, and quick to get up and running for a variety of manufacturing and industrial applications.

Read More


 

Mission Until 2030 KUKA Makes Automation Available to Everyone

KUKA MissionBy Wolfgang MeisenHead of Corporate Communication

In the next ten years, more and more people around the world will be working with robots. Automation is becoming mainstream and is finding its way into more and more areas.

Easy access to robotics: That’s KUKA’s ambitious goal – and therefore is presenting the first elements of a preview of an operating system of the future at the digital Hannover Messe 2021. Because therein lies the key: simple operation and intuitive handling of automation solutions, which until now have often been reserved for experts.

Read More


 

Product News

  • Prev
With ready2_fasten_micro, KUKA offers a solution for the robot-assisted fastening of the tiny ...
If you think that the innovation potential of stationary clamping system is already ex-hausted, you ...
Different enclosure solutions are needed for the various locations inside a food and beverage ...
The Series 670 NCC Subminiature Connectors expand the binder product range with a system for ...
The 38 Series is a range of of EMR or SSR modular interface relays which include the following ...
Festo’s growing portfolio of gripper solutions is expanding once more with the OGVM, a family of ...
AutomationDirect has added new Safegate non-muting Type 4 access control barrier safety light ...
CMOSens Technology for IR detection enables carbon dioxide measurements of the highest accuracy at ...
The 7L Series comprises a LED lights for electrical panels with magnetic mounting. They are the ...
The conditions inside an electrical panel must be such as to preserve the reliability of the ...

Littelfuse: New Features to the MP8000 Bluetooth Overload Relay

Littelfuse MP8000The Littelfuse MP8000 Bluetooth Enabled Overload Relay is a smart, universal relay that communicates with your smartphone via Bluetooth. No need to open the control panel.

Monitor real-time data, view fault codes and control unlimited relays through the Littelfuse App on the smartphone you already own from up to 30 feet away.

 

 

 

Read More

 


 

Kerrwil Publications Great Place to Work. Certified December 2019 - December 2020

538 Elizabeth Street, Midland,Ontario, Canada L4R2A3 +1 705 527 7666
©2021 All rights reserved

Use of this Site constitutes acceptance of our Privacy Policy (effective 1.1.2016)
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Kerrwil