The application of CTP equipment does bring infinite convenience to the plate making workshop, and also brings a qualitative leap to printing quality and production efficiency, but the machine is also like people, will get sick, strike, if the CTP equipment is regarded as never worn equipment That's a big mistake.
This article will point out the shortcomings that exist in the CTP platemaking workshop to help you use CTP equipment more efficiently.
Short board one: purchase plan
Today's CTP equipment is varied and the quality is uneven. When you consider introducing CTP, you must not blindly use the low price as the primary choice indicator, but the compatibility of the prepress process, the upgradeability of the hardware configuration, and the equipment. Reliability and good training and after-sales service are the norm, because it is worthwhile to buy a worry-free device at a slightly higher price.
Short board two: hardware installation
Hardware installation is the most important step after the printer introduces CTP equipment, but it is often overlooked by engineers and printers.
(1) The power supply line or the air-conditioning switch is improperly selected, and the electric wire is burned out.
(2) The UPS uninterruptible power supply is insufficient, and cannot be enabled when the power is off.
(3) The air compressor and the dryer are improperly installed and the drainage is insufficient.
(4) The clearance around the CTP equipment is too small, the feet are not flat, and the machine is shaking when working.
(5) The developing machine is not adjusted according to the standard. There is no parameter for the rubber roller and the brush pressure. After the development, the printing plate is dirty and uneven, and there are scratches.
(6) Improper adjustment of the physical position of the hardware fixture and the laser head results in a coherent different type of printing failure.
Short board three: process installation and application
The system version and the corresponding patches are specified in some process installation manuals. If you do not install directly as required, it may cause the following problems.
(1) The process cannot recognize the hard disk in the system and cannot read the data.
(2) The printer or output connection failed, and the file cannot be transferred to the CTP device at all.
(3) The corresponding color separation file or 1-bit TIFF file cannot be generated.
(4) The work file could not be imported and the specified work path could not be found.
(5) The file transferred to the CTP failed to be exposed.
(6) Unable to connect to the network, only work in a single machine, reducing work efficiency.
(7) Anti-virus software settings are incorrect, causing the system to crash.
(8) The process software cannot be started at all or is interrupted immediately after startup.
Short board four: cooperation with the printing machine
As a CIP3 process that has a direct relationship with printing, it has great benefits for the printing company, but only if the printing machine must be adjusted and the corresponding consumables selected, otherwise the effect will be greatly reduced. There are also the following shortcomings in connection with the printing press.
(1) The print settings (such as imposition settings) in the process need to meet the normal printing needs.
(2) Adjustment of the dot gain curve associated with printing.
(3) The setting of the development parameters should consider the plate factor.
(4) Set the appropriate PDF file conversion format. Different printers have slightly different format requirements for CIP3 files.
(5) The setting of high network cable or FM network requires that the final output result should be carefully adjusted by prepress and CTP hardware.
(6) Consistency of digital samples, blue paper and final prints.
Short board five: maintenance of the whole process system
When there is a problem with excessive use of the equipment and then repair, the fault is often much larger than the small problems that have occurred before. The shortcomings of maintenance mainly have the following aspects.
(1) Failure to maintain according to the standard cycle, oil and dust directly cause machine failure.
(2) Failure to replace the corresponding consumables as required, resulting in blockage of the pipeline and water in the laser head, resulting in heavy losses.
(3) If the incorrect maintenance method or improper selection is used, the machine will not start. For example, if a user in the north causes the filter of the dryer to fail in winter and the pipe is frozen, the gas supply is abnormal and the machine fails to start.
(4) The machine parameters and corresponding firmware are not set according to the corresponding maintenance standards, and the PC upgrade connected with CTP fails.
(5) The version of the process software is too low, which makes it impossible to cooperate with the current design software. The lack of pictures, small words, and special transparent layers cannot be published.
(6) The machine has a small problem and does not use the correct method to deal with it, so that the small problem slowly becomes an irreparable big problem.
(7) If the server memory or hard disk fails, you need to press F1 or F2 key, and do not process it in time, resulting in the system becoming very slow.
(8) Incorrect hardware installation, resulting in high current or stop current impact on parts, motors, and drives. Parts with long service life should be greatly shortened due to improper installation.
Short board six: workshop environment control
(1) In order to ensure the highest quality output, the whole CTP system must be placed in a clean prepress area. If it is necessary to install in the printing workshop, the area needs to be a closed workshop. The operating environment is: temperature 17 ~ 30 ° C, working temperature 20±2°C; humidity 20%～70%, working humidity 50±10%.
(2) The floor must be level and do not have strong vibrations. If there is a heavy locomotive next to the machine, it may cause floor vibration. The floor level error should not exceed 6.35 mm. Therefore, when the floor is slightly uneven, the four feet of the equipment must be adjusted to make the CTP at an optimal level.
(3) The main power supply of the output device and the main power supply of the vacuum cleaner workstation must use the same AC power supply. If necessary, increase the UPS device to ensure that the ground voltages of all branch circuits are the same. The supply voltage fluctuation range of CTP is 6% to 10%. If it is out of range, it is necessary to increase the regulated power supply and install an independent and stable two-way air switch.
(4) The total power of the device is about 2600W, 600W in standby mode and 1100W in imaging. The power consumption of the whole machine is not large, so do not switch the machine frequently.
(5) CTP equipment requires a clean, dry, oil-free, dust-free gas source with a pressure of 690 psi, a maximum particle diameter of 15 μm, an impurity concentration of 8 mg/m 3 , a maximum oil content of 5 mg/m 3 , and an air temperature should not be Above 52 degrees Celsius (actually below this value), an air dryer is required in the pipeline.
(6) The equipment itself has no anti-rat settings, and many equipment failures of the printing plant are caused by the mouse biting the line and the excrement falling onto the circuit board. Therefore, anti-mouse is also an important part of maintaining the workshop environment.
(7) The plate is divided into unexposed plate and exposed plate. The unopened plate should be stored according to the requirements of the plate supplier. The exposed plate can be stored in CTP in the case of the upper protective rubber. Workshop, not should be stacked at will.
Shortboard Seven: Training for CTP Applications
Training should be the top priority of the introduction of CTP system, CTP training can be carried out from the following aspects.
(1) Adequate prepress knowledge. Operators need to have a basic understanding of prepress graphic processing, basic printing principles, and output color separation principles.
(2) Application of process software. The operator needs to fully grasp the CTP setting method, the CTP function, and the function of each function module, instead of mechanically remembering each operation step.
(3) Plate knowledge. Although the plate is a third-party product, the operator should also have a certain understanding of the performance and basic structure of the plate.
(4) CTP hardware operation and maintenance. The electrical and mechanical structure of the equipment should be trained. Once the CTP equipment fails, the operator must be able to clearly describe the fault phenomenon and even guess the cause of the fault.
(5) The quality of the operator. The attitude of operators to CTP and their enforcement of relevant rules directly affect the operation of CTP.
1. Lift freely, can stand can sit alternate office, stand sit alternate do not hinder busy business at hand.
2. It's easy to operate, just press the button to achieve the purpose of alternate standing and sitting.
3. Memory function storage: that is, the user can adjust the function key to a suitable height according to his own height, and adjust the function key to a fixed position to facilitate the fixed position and use.
4. The appearance is simple and generous, which is in line with the international office trend and different from the traditional desk style which is dull and not easy to move.
5. It is beneficial to the physical and mental health of office workers, increases work efficiency, enlivens the workplace atmosphere and makes the workplace atmosphere more active.
Adjustable Height Work Tables,Electric Standing Tables,Sit Stand Computer Table,Electric Height Adjustable Table
Suzhou CHEX Intelligent Technology Co., Ltd. , https://www.sjqxhdesk.com