Technical Knowledge

G7 Master Printer Certified
G7™ is a specification that defines the factors that can be used to provide consistent gray scale reproduction across multiple devices, processes and media. The main innovation of G7 is the direct measurement of a combined CMY neutral gray scale, instead of separate CMY dot gain (TVI) scales. This allows the well-proven photographic principles of gray balance and exposure control to be applied to CMYK printing, ensuring a close visual match between printed images no matter where or how they are produced.
Although developed initially for commercial offset proofing, G7 has been applied successfully to a wide range of processes including coated and uncoated offset, newsprint, gravure, flexography, dye-sublimation, ink-jet, electro-photography, screen printing and others. By directly controlling the density, contrast and balance of a neutral gray scale, G7 brings the goal of ‘printing to the numbers’ one step closer to reality.
G7 has enjoyed major adoption in two distinct areas. Firstly, the gray balance and neutral tone scales defined within the G7 Specification have been used as the basis for developing standardized characterization datasets including TR003 and TR005 (SWOP), TR006 (GRACoL) and TR007 (FIRST/Flexo). These and any other printing specifications that are based on G7 exhibit a ‘shared appearance’ that makes the exchange of image files and proofs between different imaging processes easier and more predictable. See Appendix A for information about developing characterization data sets based on G7.
Secondly, the principles of G7 are also being used to calibrate presses and proofing systems worldwide. The techniques for calibrating a device to the G7 values and principles presented in this specification can be found in the companion document.
Lean Printing
In today’s competitive environment, it is mandatory for Arnold Printing to find new ways to reduce costs, waste, and setup time while adding value to the products they offer their customers. Lean manufacturing is the solution! By examining proven techniques, Lean Printing shows the benefits that come from engaging the entire workforce in recognizing value-adding processes and eliminating waste—whether that means wasted material, wasted motion, or wasted time.
- The history and foundations of Lean manufacturing
- The 5S method—sort, straighten, shine, standardize, and sustain
- Setup reduction
- Total productive maintenance
- How to build in quality at the source
- Visual management
- Kaizen—continuous improvement
- Value-stream mapping
- Incorporating consistent flow in the printing process
News & Updates
Indigo 7500
Arnold Printing has purchased a six-color HP Indigo 7500 Digital Press to meet client needs for high-response, personalized print collateral.
G7 Update
Our latest purchase is the Alwan CMYK Optimizer ECO. This is the latest technology that automates single press sheet certification on every ...
Green Printing is Eco-Friendly Printing
At Arnold Printing ...
How to Reach Us
Arnold Printing is located at 630 Lunken Park Drive, Cincinnati, OH 45226. Call (513) 533-6900 or Fax: (513) 533-6907.
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