1. Multi-pass / single-pass
Different technologies – Different advantages

2. Multi-pass inkjet
The operational basics

3. How Multi-pass works In multi-pass or scanning systems, the print heads move over the substrate in multiple passes to form the image.

4. Advantages Multi-pass Lower initial cost – Quicker ROI Super-large format available Quick set-up Better at hiding the effects of nozzle drop-out Ability to control gloss levels (matte – satin – gloss) White ink available Prints on multiple substrates

5. Disadvantages Multi-pass Speed – limited to between boards per hour Reduced throughput (compared to single-pass). Increased speeds coming – Software & Head config. Gloss Level – high gloss requires post-print coating unit. Ink Durability Potential for higher Ink costs.

6. Single-pass inkjet
The operational basics

7. How Single-pass works In Single-pass you have a fixed array of print heads and the substrate moves under the heads. Because the heads are stationary and can “lay down” a high volume of ink, the substrate is able to move at a higher rate of speed. This increases the throughput significantly.

8. Advantages Single-pass Higher Speeds – Increased throughput High Gloss levels – Even on uncoated True Litho replacement

9. Disadvantages Single-pass High initial investment Large solids can be a challenge Nozzle drop-out Head alignment required (currently) Potential for tonality variation between heads

10. Final Thought’s Before you invest……
Don’t build your justification plan around OEM stated throughput.
Understand the technology – take the time to analyze the difference.
Make sure you have the infrastructure in place to support the assets.
Many companies will be better served by aligning themselves with a digital print provider.

11. Thank You
Brad Albright – ColorHub