Printing and elimination of ink sticks in printing

In the printing of a batch of colored beer outside the box, using seven-color printing, and a large area on the ground. Use the CP2000 controlled four-color offset press to complete the printing in two passes. After printing four-color characters, use the full version of Magenta Five-Piece Flat Screen (Magenta flat screen and highlights characters. Landscape magenta system in a version, prepared for the back-end special red primer) buckle the first road printing During the process, the ink bars appeared and they were dark and shallow and they could not be sampled and produced.

The specific performance is as follows: 1 The darkness of the ink bars is different, parallel to the axial arrangement; 2 sets of color-coded rectangular lines are not ideal for overprinting, and the error is more than 10 lines.

First, turn off the black, green, and yellow colors on the CP2000 touch screen (uncompressed), leaving a magenta group, no water, and a full-size version of the spot (for savings, take 6 sheets). Monochrome full version Magenta is very flat on the ground, so troubleshoot the ink path.

Check the waterway carefully, disassemble the water metering roller, check the pressure (indentation) between all the rollers of the waterway, and clean and lubricate the lubrication points of the transmission parts of the waterway. Mounted on the water metering roller, re-paper test, failure still exists.

Observing the printed sample with a magnifying glass, the deep dark bar was spotted and pasted, and it was inferred from experience that it exceeded the normal situation. So put the skeptical gaze on the printing pressure. The flight crew reloaded more than 10 sheets and stood between the crews to listen to the sound of the paper passing through the color group. At the same time, he touched the water metering roller adjustment handle with his fingers and waited for the paper to go to the magenta combination pressure. The anomalous sounds of "," are clearly visible; at the same time, the handle of the sink metering roller is also slightly trembling. Decisively shut down to open the rubber roller blanket lining, the root cause of failure. Of course: When the previous shift was replaced, one apprentice mistakenly rewrote the two 30 silk “backing papers (60 filaments) as two “20 silk” liners to the south, greatly exceeding the normal value (40 filaments). This will lead to the occurrence of breakdowns, and we hope that when you bring newcomers to your peers, you will take care of them, and at the same time when troubleshooting, you can use the diagnostic techniques of “look”, “smell”, “question”, and “cutting” to solve the problem. : Hu Deping)