Proof Verification

Some of the features described in the following may not be included in the standard GMG ColorProof version and require an additional license (GMG DotProof, GMG FlexoProof, GMG ProfileEditor, GMG ProofControl Inline, or GMG OpenColor). Please contact your local dealer for details.

Without a standardized control strip which can be measured by the producer and the customer, any print can just be considered no more than a pretty picture—it may or may not relate to the press output.

Only if a proof is verified against an official print standard, you can be sure it will be possible to reproduce the colors on the press.

  • Customer service: You might want to provide certified standard proofs to your customers.
  • Internal production/quality control: You might want to assess the quality you produce. This might also help to avoid warranty claims and support issues.

So, how can you verify that your proofs are color accurate and meet the requirements of your standards?

GMG ProofControl Inline is a module for GMG ColorProof featuring a fully automated verification of proof control strips measured with the integrated measuring device of the proof printer.

If you have a GMG ProofControl Inline license on your computer, but no GMG ProofControl license, you will be able to install GMG ProofControl to review data, to print a label, or to customize print standards. You can then link the customized print standards to the corresponding proof standards in GMG ColorProof. You will be able to access all GMG ProofControl features except measuring with an external measuring device. For this feature, you will need a full GMG ProofControl license.

Advantage New Feature
Automated proof verification and quality assurance procedures for ContoneProof applications

According to world-wide standards such as ISO. Can be flexibly customized for in-house standards.

  • Automated verification of the print standard
  • Automated label printing
ISO standard conformity The new report format complies with the ISO 12647-7 standard. Reports can be printed directly from GMG ColorProof or from the external GMG ProofControl application.
Assure color quality on remote proofing stations If a GMG ProofControl Inline license is available on the target remote location, imported proofs will be automatically verified.
Enhanced support of larger teams, improve your quality assurance workflow Manage your proof verification check results on a central server in a network. Measurement data will be automatically saved to a custom location from GMG ColorProof. You can review the data and print reports from the main GMG ProofControl application.

GMG ProofControl is a stand-alone tool for proof verifications. It has to be purchased separately.

The program offers the following features:

  • Measure control strips with an X-Rite i1 or integrated measuring device
  • Print a verification label on an external label printer
  • Review measurement data, also measured from GMG ColorProof
  • Print a detailed report
  • Edit print standards and adjust the tolerances to suit your needs

Official printing conditions such as "ISO Coated v2 (39L)" reference characterization data describing expected print results for different input color values (from the original image as the creator has intended) and tolerances that need to be met in order to comply with the standard.

Sounds a bit complicated?—With GMG ProofControl or GMG ProofControl Inline, the procedure is actually very easy and consists of three straight-forward steps.

  1. Printing: You will print a control strip together with the image. (Control strips are provided by official organizations. The license to use them are part of the GMG ProofControl and GMG ProofControl Inline product.)
  2. Measuring: The color patches of the control strip are measured with a spectrophotometer.
  3. Verification: GMG ProofControl and GMG ProofControl Inline compare the measurement values with the target values defined by the print standard. (Widely used print standards are also part of the GMG ProofControl and GMG ProofControl Inline product.) There are two possible results:
    • Pass: The measurement values match the target values within the tolerances. As official target values and an official control tool are used for verification, the proof is considered to be compliant with the standard. You can tag your proof with a label to show the results to your customers.
    • Fail: The measurement values are out of tolerances.

For compliance with most officially used standards, a proof verification alone is not sufficient. The standard might also expect to follow quality assurance guidelines and to use a certified proofing system using an approved software, printer, and print medium. GMG ColorProof, GMG DotProof and GMG FlexoProof, and GMG ProofMedia together with high-quality printers from several manufacturers are certified for widely used standards. For more information, please contact our sales channel partners.

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