Is it a cassette or manual loading machine ?
If the variation is across the plate travel direction through the ctp you should pay attention to the so-called primary positioning unit - the three solenoid activated push fingers aligning the plate.
Clean the exposure table carefully using detergent then alcohol, avoiding debris and fluids going down the vacuum holes. The table surface is milled and aluminium dust and residue will build up over time, hence plates slipping.
Put a 1.5 - 2 mm drill rotated gently by hand into these holes not more than 2 centimeters deep to make sure they're not clogged. I assume the vacuum pump does its job properly.
I Want to Invest in Inkjet, But…
Over the past few years I’ve watched a group of transactional and direct mail printers strategically shift from monochrome toner machines to full-color toner and inkjet presses. Most banished old black-only toner boxes but kept their color toner devices around because they anticipated needing both color inkjet and toner presses to meet customer needs. They were right then and continue to be right today. Because toner and inkjet can be better together.
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