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The most successful printing entrepreneurs start a printing business by finding a niche in a specialized area, such as digital printing. Instead of trying to be all things to all people, success is more attainable by targeting a need and fulfilling it. One of the best examples of this strategy can be seen by the success of franchise sign printing businesses, which target budget-minded business owners who only need occasional signs and banners, which can be spotty (inconsistent demand) or loaded with competition. They do not attempt to offer anything but quick-turnaround signs and leave brochures and envelope printing to traditional offset printing businesses. Realize that the niche for color printing and the better quality grade of printing may be in a certain number of dots per inch (DPI), which can be very demanding and tricky to match. Remember, as a business owner, you will be responsible for the timely completion of jobs to your customer's satisfaction. Caution: Any verbal or written agreement like You [the printer] know what looks right, so you can okay the proofs for color and quality is loaded with the danger of customer rejecting the finished product. For example, they may require: Product match, excellent quality very precise color, hue, and tone for high end products. Color match, excellent quality usually precise Process Matching System (PMS Colors) by screen values (tones created by dot sizes) of the 4 process colors (cyan, magenta, process yellow, and black). Or just pleasing color, of medium quality which is not so precisely matched. Caution: that means pleasing to the customer, not to you. Commercial quality printing is probably a cut above desktop publishing, done in your-office (above typical office printer, copier, or duplicator quality). It requires sharp line art and text fineness of line work does not vary from page to page, screen color or halftone detail is consistent. Any choice of printing process (or brand of paper) shown on a quote to your customer is for them to choose. No, you can not substitute a more profitable method or material. Unless they agree in writing to a change, they can demand that it be redone at your expense -- if you did not follow written specifications precisely.
Find a niche within the printing industry. Familiarize yourself with the business standards. Be careful with your words.