Defining Productivity

Beds per Hour

Fact: In flatbed printing, output or production is linked not only to print speed but also to the number of print beds per hour. Beds per hour is a calculation of print speed and the loading/unloading time of the material. The equivalent measure for a combination printer would be the number of pieces per hour. Measurement is dependent upon the following:

  • The efficiency of the operator or loading system
  • The size and type of material being used
  • The time to register materials on the equipment

Demonstration Proof Point: Print multiple beds at the print mode and speed that delivers the desired print quality and meets all registration requirements. Judge the print quality and registration for that application. Measure the load/unload time using a stopwatch. We recommend doing these measurements for either 12 separate print runs or one hour.
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Total Processing Time

Fact: Total processing time assumes all of the graphic file preparation work has been completed, and is the sum of the following individual times:

Ripping Time + Registering Substrate + Load/Unload + Normal Maintenance + Additional Finishing Required

Demonstration Proof Point: Evaluate the following key elements when determining the above total processing time calculation –

  • The time it takes to complete each of the processing steps. Measure each step for multiple types of files and substrates if possible.
  • Determine if the equipment, RIP, and workflow software permits a file to be ripped while printing.
  • Establish if the equipment enables the production of multiple sheets in one print run in register.
  • Determine if the press allows for multiple up of more than one image.
  • Document the normal loading/unloading times, normal maintenance procedures and whether or not additional finishing is required.

 
Note: It is strongly recommended that you have at least 2 or 3 files that you DO NOT send to the equipment supplier prior to the demonstration. This will ensure you see the actual workflow and real processing time.