- INTERQUEST, Ltd. was commissioned by RISO, Inc. to conduct a study comparing the response rates to direct mail postcards printed on a RISO full-color inkjet printer with the same cards produced on a production class
full-color electro photographic copier/printer. INTERQUEST independently managed all phases of the study, including the selection of respondents, the printing and mailing of the postcards, and the tabulation and analysis of the results.
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