To complete the unit requirements safely and effectively, the individual must:
Interpreting job specifications
explain what to do if vital information is missing from the job ticket
explain checks to be done prior to set-up e.g. availability of materials
Preparing and fitting plates
list problems that can result if the cylinder is not cleaned prior to plate fitting
explain how the grip edge of the plate is identified
describe the effect of over packing the printing plate cylinder
discuss how pitch lines can be used to assist in plate installation
name tools or actions likely to damage the plate
explain why plates should be consistently tensioned
For reel systems only
Reel in-feed
identify work health and safety (WHS) precautions for webbing up the machine
discuss how to determine the printing side of the material
explain the effect of low web tension on the print
explain the purpose of nip rollers
identify types of web splices appropriate for the job
Reel delivery system
describe the effect of excessive web tension at the rewind of the machine
list risks associated with the rewind of the machine
For sheet systems only
Sheet in-feed and transfer
identify WHS factors to be considered when setting up sheet in-feed and transfer systems
explain why the sheet is normally set up in the middle of the machine
describe the effect of side lay selection on the job
explain how to determine the position of the sheet before it is transported to the printing unit
outline how a register check is carried out
describe why a two-sheet cut is used on most feeders
explain how the machine knows if a sheet is missing or late
explain why the application of spray powder is sometimes advisable
explain the effects of too much spray powder
explain why slowdown devices might be used in delivery
outline the effect of excessive jogging on the stack
Preparation of inks and additives
identify all WHS and environmental concerns associated with inks and additives
explain what details to check for suitability of an ink for a job
describe how to modify ink that is slightly light
outline methods available to check ink for correct colour
identify who passes the colour prior to running the job
Machine set-up
list all work health and safety (WHS) factors to consider when setting up the machine
explain how cylinder (plate, blanket and impression) specifications are determined for the specific job
explain effects an incorrectly set dampening system may have on the job
explain why ink profile varies across the machine
explain what optimum ink duct sweep is
Basic in-line processes
explain the correct machine position to engage in-line processing units
list essential precautions required when setting up in-line processing units
outline necessary precautions if UV drying is utilised to dry the ink film
Proofing and adjustment
identify methods to minimise waste during make ready
describe what to check on the initial print prior to running
explain how the machine is proof tested
outline ideal conditions for inspecting the proof
describe methods to check and adjust ink colour and consistency
identify adjustments that may cause mis-register
list adjustments to position the image laterally
identify adjustments to position the image circumferentially
identify who has the final say in the approval of the job
Information sources
identify machine manuals, safety and other documentation relevant to this task, where are they kept and the information contained.