EyeC Wiki

Off-line Inspection

 

Ensuring that packaging has been printed correctly, has no text or graphic errors, and matches the original artwork you have signed, is particularly important when printing sensitive documents. 

This is because it is often a matter of complying with legal regulations and maintaining a good image for your customers. To support you in this task safely and efficiently, EyeC has developed a complete range of print sample or off-line inspection systems.

EyeC Proofiler 600 DT mit Bildschirm

What is off-line inspection in printing?

Two different types of automated inspection of printed products are used in the printing industry: in-line and off-line inspections. The latter are not integrated into the ongoing printing processes but check the quality – especially of printed packaging – in the incoming materials laboratory. 

The systems are therefore an ideal complement to in-line inspections and ensure error-free printing.

Overview of the advantages of off-line inspections

  • noticeable increase in print quality
  • fast and accurate solution
  • easy to use
  • efficient checking of changes to print templates
  • significant reduction in waste
  • cost reduction
  • save of time consumption
  • faster delivery to the customer
  • improvement in complaints prevention

What is off-line inspection in printing?

EyeC Proofiler

The EyeC Proofiler is a complete range of off-line inspection systems that enable companies to check the quality of all types of print samples. The system was developed not only for print shops, but also explicitly for their customers – especially if they have special requirements for printing labels and packaging. The aim is to bring security, efficiency, and flexibility to quality control.

EyeC Proofiler 900–1700 DT

The EyeC Proofiler is also available for the 900, 1200 and 1700 DT formats so that quality checks can be optimally adapted to common print formats. This means that half-size to large-format print samples can be checked as quickly as possible and incorrect images can be avoided. Your employees also benefit from the ease of use, especially with large sheets or thin brochures.

EyeC ProofBook

Especially when printing large documents, a comprehensive quality check is required to avoid misprints. With EyeC ProofBook, the process efficiency of the checks can be significantly increased: the system scans the pre-print for errors and refers the operator directly to the pages that need to be proofread. This allows you to eliminate incorrect images much more quickly and easily.

EyeC Audit Trail Viewer

The EyeC Audit Trail Viewer is available for the EyeC Proofiler and the EyeC Proofiler Graphic from version 3.4 on. This off-line inspection system helps you to check your audit trail and track critical events easily and securely. This allows you to recognise anomalies quickly, save a lot of time in process control, and be well prepared for upcoming audits.

What are the benefits of integrating off-line inspection systems?

The integration of off-line inspection systems has many advantages for print shops. They help to save time, improve quality, and avoid costly reprints or product recalls. EyeC’s off-line inspection systems are a cost-effective solution for meeting your customers’ quality requirements. Not least thanks to the high adaptability of the systems and the ability to inspect different printing processes and samples from different presses.

FAQ

Off-line inspection systems are often used alongside in-line inspection to create a layered quality-control approach. While in-line tools continuously monitor production, off-line systems allow for deeper, more controlled analysis of samples or critical jobs. This combination provides both speed and thoroughness, ensuring that even subtle or sporadic issues are detected.
Yes. Most off-line inspection systems generate detailed reports that can be stored, shared, and used as evidence during regulatory audits. This documentation helps companies demonstrate that they have applied defined inspection procedures and maintained a traceable quality-assurance process.
Certain issues—such as micro-text deviations, colour shifts on small elements, low-contrast defects, or irregularities in highly reflective materials—are often clearer in a controlled off-line environment. Off-line systems typically operate at higher resolution and without the vibrations or speed limitations of production lines.
Absolutely. Off-line systems are particularly valuable for environments with frequent artwork updates, multilingual variations, or limited print runs. They allow operators to verify new templates quickly before production begins, reducing the risk of introducing errors into a new batch.
Most systems are designed to be intuitive, but successful operation does rely on a basic understanding of print processes and quality standards. Operators typically learn to set tolerances, define comparison templates, and interpret inspection reports. With training, even staff without a technical background can use the system confidently.
Off-line inspection systems improve production accuracy by allowing print samples to be analysed in a controlled environment, free from the speed and movement of the production line. This enables the system to detect even subtle deviations in text, colour, layout or code quality that might otherwise go unnoticed during fast-running processes. Because potential errors are caught before full production continues, operators can make precise adjustments early on, significantly reducing misprints, waste and downstream corrections. Over time, this consistent feedback loop leads to more stable processes and a higher overall accuracy in the finished products.