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D-Roller will allow you to take the curl out of fine art papers that come
off a roll. These papers are used in the fine art and photography digital
print market. Traditional fine art papers may also be D-Rolled to take the
curl (roll set) out of the paper. Papers may be D-Rolled prior to or after
printing with no dry time needed for the inks. 1. There are two models with different diameter rolls. (DR150 / DR200) DR150 - This model works best with papers from rolls on small cores of less than 3 inches. It also works best on stiff papers that are sized more or have been calendered more during their manufacturing. DR200 - This model works best on soft papers and on papers in environments with high humidity levels. 2. The longer you leave the paper rolled up in the D-Roller (1-60 sec.) the more curl you will take out of the sheet. You can decurl the paper too much and make it curl in the opposite direction. 3. Most prints should be D-Rolled from both directions (front and back) to balance out the decurl effect. Prints that are longer than the D-Roller film will also be turned 180 degrees and D-Rolled from opposite sides as per the instruction sheet. One should not be concerned about the middle of a print being D-Rolled twice when you overlap the D-Rolling from the opposite sides. 4. Print paper coming off the outside of a roll will require LESS D-Rolling than the paper coming off near the core of the roll. One might have to change the Diameter or the D-Roller (different model #) or the time held in the rolled up position to effect a flat sheet. 5. You can protect a delicate print (black photographic) with a thin cover sheet if conditions require during the D-Rolling process. 6. A print may be D-Rolled more than once to achieve the desired flat sheet profile. 7. Low humidity conditions will require more D-Rolling / either more time rolled up or smaller diameter roller tube (DR 150). 8. Special rollers may be ordered with larger or smaller roll tubes and or longer print sheet carriers for extra long prints (8-20 feet). 9. Non rag papers will require more D-Rolling than 100 percent rag papers. 10. In some cases even with the largest diameter roller(DR200) and the shortest D-Roll time you may have to much D-Curling effect and the print is curled in the opposite direction. If this happens you can take new prints and add more curl to them by rolling them up in the D-Roller in the curled direction and holding for 10 seconds. Now proceed with the normal D-Curling without using any holding time in the D-Roller (roll up roll back asap) to effect a flat print. PATENT PENDING |