Several errors between designers and printing factories (1)

Printing disputes are the most unwilling but often encountered problems in the process of printing companies and customers. One of the reasons for the emergence of printing disputes may be the unqualified quality of the final product in the printing factory. Another important reason is the objectively existing printing error. For professionals who have long been engaged in printing, some of the printing errors are objective and impossible to avoid; and for customers who receive prints and play a decisive role in the acceptance of finished products, sometimes these errors are not fully understood. In this way, in the process of handing over finished products to customers in the printing industry, it is often the case that the printing factory considers that the products it manufactured are qualified, while the customers insist that the products are unqualified or even unacceptable. As a result, after the dispute, the communication between the two parties was very difficult. The customer thought that the finished product of the printing factory was not qualified, but he was looking for an excuse to make unreasonable sophistry; the printing factory thought that the customer had trouble making trouble and there was a problem with the payment credit.

Here is a brief introduction to the objective errors in printing. The reason why it is objectively existed is due to the limits of machinery itself. These errors are unavoidable and are not caused by human factors such as poor management and improper quality control. These errors include:

1. Text errors in typesetting:

Typesetting is an important process before printing. Precisely speaking, typesetting is a text layout work that is performed by the design production staff using the corresponding software under the client's intent and requirement. Therefore, from the perspective of the printing factory, before the plate printing, customers are generally required to confirm the signature. However, sometimes due to the tight time of the job, and at the same time based on the degree of trust between the parties, the customer may sometimes completely delegate the right of typesetting to the printing factory. In this case, once a problem arises, the customer may blame the designer for irresponsibility, such as typos or other typographical errors. It should be said that the emergence of this kind of error is not caused by the above-mentioned mechanical problems. It is entirely a problem with process control. Therefore, we generally require that a customer's signature be confirmed before a proof is taken. Through common comparisons between both parties, these mistakes can be greatly reduced or eliminated. But even so, in fact there may still be some mistakes in the customer's confirmed manuscript. In this respect, we recommend learning from the practices of certain multinational corporations. After the printing of important publications, they will always be rigorously stating that “this information is for reference only and the company does not bear any responsibility for any errors in printed matter. Responsibility" to eliminate joint and several liability arising from typographical errors.

2. Filming and proofing errors:

After the design production staff finishes the typesetting work, they enter the publishing process, which is what we usually call proofing. In general, the precision of the laser imagesetter is within 0.01 C 0.1 mm. At the same time, due to the different films used, it will also cause some errors. The most direct manifestation of this error is that in four films (black, red, yellow, and blue), if there is a problem with a certain film (such as a black version) and a patch is required, the film is different and resolved because of the film output. The rate may be different (not in the same batch of film), resulting in changes in the dots, and the film being filled may be inaccurate with the previous three films. Therefore, it is necessary to form one piece at the time of filming to minimize the patch. Of course, garbled fonts or font changes that appear when a movie is taken out of the film can be avoided if the person concerned is responsible. After the film (film film) is produced, the traditional analog proofing requires a set of four films for proofing. In the proofing, to achieve the accuracy and stability of the four-color ink proofs, we must control and standardize the three links, namely equipment, materials and quality standards. In the equipment, it is necessary to adjust the pressure of the proofer, the temperature of the platen, and the air-cushion blanket to ensure that the proofer is in the best working condition. In the material, the same brand of ink of the same brand should be used, and the four colors of different brands should be used. Ink will cause the difference between the proof and the profile in the scanner, directly affecting the accuracy of color correction. In addition to standardizing paper, in principle, the same type of paper should be used for proofing and printing; in terms of quality standards, attention should be paid to the value of solid density in the field and the relative contrast in printing. If the factors cannot be taken into account when proofing, it will lead to errors in the printed product compared to proofing. For example, the ink used for printing is different from the ink used for proofing; the paper used for printing is different from the paper used for proofing (such as using different brands of paper, or using different kinds of paper such as copper plates, films and special papers); The increase in outlets is minimized, resulting in small white holes at the center of outlets. If these deviations occur, they will directly lead to the failure of printed products to catch up with proofing. In fact, even if it is the same set of film, if it is proofed twice, the proofs it produces will be different.