Roland DGA - Using Rotary Mode to Optimize Printing with LEF Series Flatbeds and RotaPrint

If you print on cylindrical objects with an LEF series flatbed and RotaPrint, you’ll want to take full advantage of the Rotary Mode. The Rotary Mode firmware update was released a couple of years ago, and we want to make sure LEF owners are using this valuable feature. Doing so will improve the printing process and help ensure better results.

Ultimately, the Rotary Mode firmware update does two specific things:

1) It allows the RotaPrint rollers to constantly contact the table.

2) It isolates the center of the print heads, allowing for greater accuracy when printing on cylindrical objects.

Note: On the LEF2 series printers, the printer is shipped with the System Switch Active. For those using LEF series printers, in Service Mode, go to System Switch → PAGE13 → Bit1.*

Setting Rotary Mode ON

When the Rotary Mode is ON, after the origin and bed height are established, the LEF printer no longer resets and disengages the roller wheels from the RotaPrint to the bed of the printer. The firmware update enables the printer bed to do a single pass and return to the 0.0 point of the bed, which greatly increases print alignment and allows for White + CMYK + GLOSS printing applications.

Important Note - Remember to Disable the Rotary Print Mode to Off when NOT using the RotaPrint Fixture. When the Rotary Mode is Enabled, the 0/0 basepoint shifts up 30 mm and the bed width is reduced from Left to Right by 30 mm.

Nozzle Mask (amount and placement of nozzles used) 

When Rotary Mode is enabled, the Nozzle Mask adjustment becomes active. While the default setting is 100%, this setting can be reduced all the way down to 0%. For example, reducing the setting to 50% reduces the print head area used by 50%. This controls the accuracy of the print on the cylindrical object.

Note: By decreasing the Nozzle Mask 50%, the total print time will be 200% longer (double), however the print accuracy will increase.

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