Experimenting with your inkjet press is something that should be part of your monthly plan. Here is the second of three experiments to help you really get to know your press. The first experiment was about paper. Today we talk about ink volume.
The sheer number of factors that affect the color gamut in production inkjet can be overwhelming. Whether you are a Print Services Provider or a buyer of inkjet-printed products, these color gamut factors matter. IWCO Direct spends a lot of time answering these questions internally and for customers. Here are some of the things they’ve learned thus far.
Most inkjet applications require paper. For many reasons, compatible inkjet paper is in short supply. If you are involved in the inkjet print supply chain, or a buyer of the finished product, it is in your best interest to help clear hurdles to identify and qualify compatible papers and to communicate availability as efficiently as possible.
Companies evaluating paper for suitability for their inkjet environment have different expectations. What is most important to you and your customers: gamut, show-through, small text clarity, mottle, coalescence, edge clarity, or are they all important? Do you get the data you need to see how a paper performs in these areas on your press?
Many buyers in 2019 are looking to complement or replace their offset production capabilities. High speed inkjet is gaining acceptance in a market with high print quality and color expectations. We are talking about high end, high value printing such as marketing collateral, magazines and catalogs. Read on for a round up of factors in evaluating presses for this market and top OEMs making the cut.
Coated papers being more expensive, we expect higher quality from the printed piece. Gloss coated, which holds the ink high on the surface, will show any defect from inconsistent pre-coating, print head jetting and even inconsistent paper coating. Note that, even though we may not see a difference in surface coating, offset coated papers can come with inconsistencies that originate at the paper mill. If coating is not evenly applied across the entire paper machine, the roll or ream you receive will print and dry differently than the one before.
Regardless of whether you are new to production inkjet or trying to work through production challenges, success often comes with a well-rounded approach that includes filling knowledge gaps and executing critical process steps.
After the trainers leave and before you develop buyer’s remorse, there are tricks to living with your press that will allow you to maintain your inkjet excitement. That is the purpose of this series, starting with this first episode on dealing with ghosts.
Producing quality rich blacks and image details with inkjet can become a scary task. Learn how to control black details (shadows) by understanding the ink/paper/profile combinations that are spooking your results. Happy Halloween.
John Seymour shares a humorous post on the accomplishments of Albert Munsell and his contributions to the field of color management. Provides an overview of the leading sources of color management theory and an approachable way to understand three-dimensional color space.
ScreenPro with PrintFlat technology reduces non-uniformity, commonly known as the inkjet smile. Source: Global Graphics Cambridge UK, 10th July 2018: A new version of ScreenPro™, the ultra-high-speed screening engine tuned …
Knowing he color capabilities of your inkjet device is very important, but understanding the color capabilities of your press crew is critical. Visually tweaking or modifying color on press is never an efficient or repeatable way to run production. Making your staff aware of their potential vision deficiencies will help catch color, as well as print quality issues, before they get to your customer. Here are some things you should know.
As inkjet moves into applications with high ink coverage and quality demands, users can run into some hard to diagnose problems. If you only focus on the paper and the print heads when trying to diagnose print quality issues, you could struggle for a long time looking in the wrong places.
Shade is important to inkjet color reproduction as the paper’s shade shows through the ink and can shift the ink’s colorant when applied to the sheet. Paper shade can affect all values of highlight, mid-tone and shadow areas of print.
Paper whiteness is particularly important in markets for which small text and readability is important such as book as well as magazine. For magazine images, the level of OBA’s in the paper can affect color reproduction accuracy of certain colors combinations.
Offset printing satisfies the majority of the production requirements for both catalogs and magazines. As marketers seek to increase ROI, you can start to make the case for shorter runs, versioning, hyper-localization, and personalization and then inkjet printing starts to become interesting.
While the conversion of marketing collateral from offset to digital may not be high, the value for digitally printed collateral is often much higher than other applications, typically driven by shorter run lengths, versioning and personalization. This has created excellent revenue opportunities for commercial printers who specialize in this area.
In this installment of “Let Data Drive your Print Quality Comparisons” Mary Schilling discusses the importance of chroma, how it’s defined within the context of print quality analysis and differences between inkjet and offset.
Mary Schilling discusses objective inkjet print quality comparisons and the benefits of a data-driven approach. Objective print quality analysis provides clear comparative data and removes all personal bias and visual subjective deficiencies when reviewing prints off competing inkjet devices. Inkjet beauty is more than skin deep!
Contributing author Chris Lynn provides and insightful explanation of “Apparent Resolution”: what it means, how it came to be and whether or not it matters for your application segment when evaluating an inkjet press.
In the previous post How to Make an Inkjet Sandwich I talked about the potential different ways that ink can react to a substrate when used in combination with other fluids such as primers or post-coatings. Those interactions make it critical to optimize all the fluids for your entire process, prior to linearization and profiling, to avoid print defects such as color to color bleed and coalescence.
We got a lot of good feedback on Elizabeth’s post on Peanut Butter and Workflow so I thought I would keep the sandwich metaphor going. When using pre-coatings and post-coatings with inkjet, you are creating an inkjet sandwich served on a paper plate. Each layer of the sandwich can make the ink spread and dry unevenly if not managed before profiling, creating a soggy sandwich.
Traditional transaction documents are turning into “transitional” documents with more personalization, graphics and color. Unfortunately, some of those transactional images are looking a bit ragged. I’ve started counting the number …
Print manufacturers include print resolution in their machine specs. It is usually shown as dots per inch (DPI) e.g. 600 x 600 or 1200 x 1200, but you may also see different amounts for the process and cross process directions e.g. 600 x 480, particularly with high speed continuous devices.
What determines production inkjet print quality? This is a complex question which can’t be answered by simply looking at the published spec sheet for a device. Many OEM’s tout higher …
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