need to ensure that the job specifications are read and properly understood production problems that could eventuate by not reading and understanding the job specifications responsible person todiscuss any production problems importance of the hardness of the printing plate faults that may be detected on new plates type of solvents that should be used on photopolymer plates meaning of the term V-block mounting V-block mounting the purpose of binding plates after mounting checks that are performed prior to cylinder installation importance of keeping machine frames and unit slides cleaned OHS precaution that must be observed when installing printing cylinders in the machine optimum print sequence visual aid on the plate that identifies the colour of ink to be used precautions that were taken to ensure that the plate/cylinders were not damaged during installation OHS precaution that must be observed when webbing up the machine determining the position of the reel effect if the brake tension is not set correctly function of the "Dancer" roller on a web machine function of nip rollers effect if the web is not spiced correctly major OHS concerns when setting up the sheet transportation system cause of more than one sheet to pick up in the feeder essential accurate feeder set up position of the sheet prior to being transferred to the printing unit determining which front lays to use type of substrate that would require additional front lays to be engaged need for additional front lays when printing this type of substrate OHS precaution that must be observed when setting up the delivery control of the in the rewind unit function of a slitter on a web machine problems that could be attributed to a blunt knife when sheeting remedial steps that can be taken if there is a possibility of the ink marking in the rewind OHS precaution that must be observed when removing sheets from the delivery cause of sheets to be delivered incorrectly adjustments that would be necessary if changing from lightweight to heavyweight stocks sheet release into the delivery problems resulting from the excessive use of anti set off spray powder cause of printed sheets to set off in the delivery reducing the possibility of set off in the delivery air blast assistance to sheet delivery OHS precautions that must be observed when preparing inks and additives details that are necessary to check an ink's suitability for the printing process special end-use requirements that may be necessary additives and their use in inks use of a spectrophotometer to assess the colour of an ink formula for calculating the correct quantity of lithographic ink print fault that will occur if excessive driers are mixed into the ink precautions that you observe to minimise waste when preparing the ink shelf life of most inks conditions that are relevant to the storage of inks and additives conventions that should be adhered to when labelling mixed inks major OHS concerns when setting up the machine level of packing required in the tympan amount of printing pressure required ideal condition of the tympan achieving the correct top sheet tension when fitting a new tympan print faults that can occur if the tympan is not tensioned correctly order eccentric or concentric roller adjustments should be made width of the contact stripe between two rollers when setting the rollers ink duct setting ideal ink duct sweep setting recommended degrees shore hardness for forme rollers main reason for blistering on a heatset machine types of ink drying/curing systems curing the ink using the drying unit operation of the true inch function fitted to some machines problems that may cause the machine to keep stopping checks that are necessary prior to engaging the impression checks that are performed when running the machine the effect the position of certain guards has on the operation of the machine communicating the steps involved in operating the machine to other team members aids that are available for the testing of the machine proof tests that are necessary for this job testing location function of a polarisation filter in a densitometer ideal conditions for inspecting the proof need to use visual aids on the printed sheets cause of a halo effect on the image methods that are available to check and adjust ink colour and consistency adjustments that may have caused mis-register adjustments that are made to position the image laterally adjustments that are made to position the image circumferentially effect of changing the colour sequence on the final colour cast procedure to lengthen the print length on this type of press procedure to shorten the print length on this type of press difference between mechanical and optical dot gain cause of excessive mechanical dot gain responsibility for the final say in the "OK" of the job in-line processes that can be used in specialised pad printing machine manuals, safety and other documentation that are relevant to this task and where they are kept and information that is included in these documents
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