Laser Imagesetter Font Distortion

A short time after the ECRM VRL45 Imagesetter in our factory was used, there was a problem with graphics and font distortion during the output. For example, the help became help (width invariant, high reduction), and the dot area on the signal bar when the test strip appeared The part has become a thin horizontal line.

Since the image-setter is not used for a long time, the possibility of bad hardware is relatively small. After inspection, the connection of the signal line is intact, and there is no problem with the distribution software (using the Mac, Huaguang VII software to send and discharge), there is no problem with the cassette (if the spring in the cassette is displaced, resulting in uneven distribution This situation can also occur.) After careful analysis, the reason for this is that the speed of the output wheel of the output film has become slower (the imager uses a belt drive).

Due to the constant film feed speed, the output speed is slowed, causing the imagesetter to repeatedly scan on the film, causing the font to be distorted. When the pulley of the output film was tightened and then discharged, it was found that everything was normal and the above problem no longer occurred.