Roland GR-540 User Manual page 327

Crop Marks Cannot Be Read
When the machine cannot read crop marks, it displays an error message and pauses operation.
If this happens, press any key on the operation panel. Remove the material, check the following items, and then
reload the material.
"CROPMARK ERR" or "SET TO <TOOL MODE>" Is Displayed
Is the material loaded correctly?
Refer to "Using Various Types of Materials"
Are you using material that is not white or is glossy?
Crop marks cannot be detected if decorations or colors are on the material.
Crop marks also may not be detected on glossy material even if it is white.
Materials That Can Be Used for Printing and Cutting
Does the material have creases or wrinkles?
Crop marks may not be read if the material has creases or wrinkles. Stretch the creases or wrinkles out and
load the material again.
If the crop marks still fail to be read, prepare new material without creases or wrinkles and redo the operation
from printing the data.
Are the crop marks blurred or are they in a color other than black?
Set the color of crop marks to black, specify 100% density, and then print the data again.
Crop Marks
and load the material in the correct position.