ColorLok
ColorLok® Technology is a plain-paper color performance standard.
Paper qualified with the ColorLok® logo produces superior quality digital prints. The ColorLok® standard applies to plain-paper output from inkjet and laser printers, as well as common copy machines. ColorLok®-designated paper provide consistent and reliable printing regardless of which machine is used within an office environment.
RIT conducts ColorLok® paper qualification testing on behalf of HP Inc. Test results are sent to HP, where all licensing and permissions for the ColorLok® logo use are approved. Contact HP directly for more information.
Ship paper to
Rochester Institute of Technology
Printing Applications Laboratory
Building #78, Dock #3, Room #1425
Attn: Michael Leaty / ColorLok® Paper Qualification Testing Program
66 Lomb Memorial Drive
Rochester, NY 14623
585-475-7427
*Material originating from outside the U.S. must include an original commercial invoice and/or a bill of lading. This will help ensure that the material clears customs in a timely manner, thereby reducing shipping delays.
Sample Qualification Submission Walk-through
- Paper Company X provides qualification paper sample to RIT from every paper machine that needs to be qualified.
- Paper Company X delivers two cartons of paper to RIT: one carton of sample paper from the beginning of the production run and another from the end of the production run. Each carton is clearly labeled according to the run and equipment used.
- Paper Company X ships the sample paper cartons to:
Rochester Institute of Technology
Printing Applications Laboratory
Building 78, Dock #3, Room 1425
Attn: Michael Leaty / ColorLok® Qualification Program
66 Lomb Memorial Drive
Rochester, NY 14623
585-475-7427 - Paper Company X is notified when the samples arrive at the RIT lab and is given the testing schedule. When testing has been completed, RIT provides a pass/fail report to Paper Company X.
- Each of Paper Company X’s paper machines will be qualified using the highest whiteness or brightness paper produced on that paper machine. By qualifying the highest whiteness C/2 or highest brightness (GE/TAPPI or ISO) paper, all other lower whiteness and brightness papers produced in the same paper machine will be qualified automatically. (Note: Every conversion unit must be qualified in the case that Paper Company X uses more than one conversion unit to finish the paper product.)
Qualification Tests
Physical properties applicable for performance on both inkjet and laser technologies
- basis weight
- coefficient of friction
- moisture content
- stiffness
- edge-cut quality
- pre-print curl
Inkjet-specific performance
- dot gain
- print density
- dry time
- edge acuity
Laser-specific performance
- smoothness
- electrical surface resistivity
- filler-particle size
- wax pick