To complete the unit requirements safely and effectively, the individual must:
Reel transportation and web control
explain what causes the reel to wander
explain what causes web to break at the unwind unit
describe the difference between a ‘flying paster’ and ‘zero speed’ type reel-stand
explain what print fault results from the reel being run out of centre
identify possible faults in the unwind section that could cause a web break
Reel delivery for rewinding and sheeting
identify WHS risks associated with rewinding and sheeting
identify the safety feature in the delivery system that helps if the web jams up
explain why the sheet cut-off might wander
describe the effect of poorly adjusted nip rollers when rewinding and sheeting
Printing and drying units
explain what happens if the plate lifts on the leading edge during a print run
explain how a build-up of ink on the impression cylinder affects the printed product
explain what causes ink to foam in the ink tray
explain the effect of too much reducer in the ink
list actions that reduce wear of the doctor blade
explain why it is necessary that all solvents be removed from the final ink film
describe the link between driers and set off and marking
explain what causes UV ink to dry
explain what causes substrate to distort
list the effect in the chillers if the drying temperature was too low
explain the effect of incorrect drying temperature on the finished product
discuss why it is advisable not to eat or drink near the machine when using UV inks
In-line processes
explain why it is necessary to frequently examine in-line components of the job
describe how consistency of the punching unit is checked
explain the outcome of excessive pressure on the slitters
Maintaining production process
describe safety features within the organisation that aid in maintaining effective production
identify who is legally responsible if removal of machine guards and/or disconnection of micro switches occurs
describe the effect of inadequate communication within the work team
explain ramifications if machine guards are removed and/or micro switches are disconnected on a machine
explain what other measurements besides optimum solid ink density can be measured to assess print quality
determine the accurate method of checking register during a production run
describe why it is necessary to take immediate action when anticipating production problems
explain actions to eliminate further processing of unacceptable printed product
determine result to the substrate if relative humidity is increased in the press room
explain the procedure to care for a newly delivered substrate to the press room
describe why waste should be sorted and the advantage of keeping reusable waste
Client liaison
identify what industry standards that can be applied to enhance client communication
describe necessary procedures clients should follow to OK a printed product
Flexographic machine operating problems
explain when it is necessary to call service personnel to correct a machine problem
describe enterprise procedures in place to report any machine operating problems
Shutdown procedures
explain what happens if correct shutdown procedures are not followed
explain why it is necessary that correct shutdown procedures are conducted with fellow workers
list advantages of proper labelling and storage of excess inks and materials
identify why printed product needs to be clearly labelled prior to removal from the press room
determine what further operations are required for printed reels once they are removed from the printing machine
explain how the printed job should be stored after removal from the printing machine
detail cleaning and washing the printing unit
explain what WHS concerns should be observed when handling ink
identify safety precautions for cleaning the printing cylinders
explain why it is necessary to thoroughly clean and wash the printing unit prior to the next print run
explain why anilox cells should be thoroughly cleaned
describe how plates can be stored to minimise damage
Cleaning feed, transportation, delivery and in-line sections
explain work health and safety (WHS) precautions for cleaning these sections of the machine
explain why it is necessary to maintain a clean substrate handling section of the machine
Completing production records
identify what completed records are used in the final analysis of the job
explain benefits of comprehensive records when considering production of future jobs
identify machine manuals, safety and other documentation relevant to this task, where are they kept and information contained.