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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

  1. Confirm non-routine job specifications
  2. Set up delivery systems
  3. Select and prepare inks and additives
  4. Set up machine for complex relief printing
  5. Conduct proof run

Range Statement

This section specifies different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Delivery systems MUST include EITHER:

Reel

OR

Sheet

Setting up and adjusting MUST include EITHER:

Unwind and rewind reels

Webbing procedures and web control system

Splicing/joining reels

Printed web viewing devices

Folder and sheeter

Set off/marking prevention devices

OR

Feeder and delivery systems

Sheet pick-up and transportation systems

Transfer and control systems

Set off/marking prevention devices


Performance Evidence

Evidence of the ability to:

set up reel or sheet-fed platen, cylinder or rotary printing machines for non-routine print jobs

conduct a proof run and adjust settings to ensure production speeds are attained

correctly set up a relief printing machine for complex printing on TWO occasions (if possible using different substrates and including at least two in-line processes) according to manufacturer’s and job specifications, enterprise procedures and work health and safety (WHS) requirements.

Note: If a specific volume or frequency is not stated, then evidence must be provided at least once.


Knowledge Evidence

Evidence of the ability to:

identify job requirements, and production problems that could eventuate by not reading and understanding job specifications

identify who to discuss any production problems with to

identify importance of relief plates, why hardness of the printing plate is important, and faults that may be detected on new plates

identify type of solvents to use on photopolymer plates

outline the purpose of binding plates after mounting, and explain V-block mounting

list checks to perform prior to cylinder installation

outline importance of machine frames, and why unit slides need to be kept clean

identify the optimum print sequence

name the visual aid on the plate that identifies the colour of ink to be used

For reel systems only

outline WHS precautions for installing printing cylinders in the machine

identify precautions to ensure plate/cylinders are not damaged during installation

outline the reel transportation system used on a web-fed machine, and the WHS precautions for when webbing up the machine

identify implications if the web is not spiced correctly

describe the process of determining position of the reel

outline implications if the brake tension is not set correctly

describe the function of the ‘dancer’ roller on a web machine and the function of nip rollers

outline the reel delivery system on a web-fed machine, and the WHS precautions for when setting up the reel delivery system

identify the function of web control in the rewind unit, and the slitter on a web machine

identify problems attributable to a blunt knife when sheeting

describe remedial steps if there is a possibility of ink marking in the rewind

list the main reason for blistering on a heat set machine

outline WHS precautions when slitting on the machine, and other operations that can be performed with in-line units

describe the machine position for in-line processing units and \ precautions for setting up in-line processing units

list reasons to top cut a printed product, and benefits of embossing in-line

For sheet systems only

outline the sheet transportation system on a sheet-fed machine, and WHS precautions for setting up the sheet transportation system

identify what causes more than one sheet to pick up in the feeder and describe why accurate feeder set up is essential

outline the process for determining position of the sheet prior to being transferred to the printing unit

outline the process for determining which front lays to use and the types of substrate that require additional front lays to be engaged, and why they are required

describe the sheet delivery system on a sheet-fed machine, what causes sheets to be delivered incorrectly, and WHS precautions for removing sheets from the delivery

describe adjustments needed if changing from lightweight to heavyweight stocks

identify the process for determining sheet release into the delivery

outline problems from excessive use of anti-set off spray powder

identify what causes printed sheets to set off in the delivery

identify how the possibility of set off in delivery can be reduced and how air blast assists sheet delivery

outline packing required in the tympan, and the ideal condition of the tympan

identify the process for determining printing pressure

outline how the correct top sheet tension is achieved when fitting a new tympan, and print faults that can occur if the tympan is not tensioned correctly

identify how to lengthen print length on this type of press, and to shorten the print length

outline WHS concerns related to preparation of inks and additives, and details required to check inks’ suitability for the printing process

outline why it might be necessary to mix an additive into ink and any special end-use requirements that may be necessary

outline how a spectrophotometer can be used to assess ink colour, and formula for calculating the correct quantity of ink in relief printing

identify print faults if excessive driers are mixed into ink, and precautions to minimise waste when preparing ink

identify the shelf life of most ink and the conditions relevant to storage of inks and additives

list conventions for labelling mixed inks

identify the process for setting up the printing machine and major WHS concerns

name the order eccentric or concentric roller adjustments should be made and the width of the contact stripe between two rollers

outline the process for determining ink duct setting, and the ideal setting

name recommended degrees shore hardness for forme rollers

describe types of ink drying/curing systems and how the drying unit cures ink

state what happens if there is excessive pressure when top cutting and excessive pressure when cutting and creasing

describe the effect of differing tooth counts on perforated products

outline problems of solving proofing and adjustment

outline the operation of the true inch function fitted to some machines, and problems that may cause the machine to keep stopping

outline checks necessary prior to engaging the impression, and checks to be performed when running the machine

describe the effect position of certain guards has on operation of the machine

outline steps involved in operating the machine communicated to other team members

name aids available for testing the machine proof, where testing should take place, and tests necessary for each job

name the function of a polarisation filter in a densitometer

describe ideal conditions for inspecting the proof

explain why it is necessary to use visual aids on the printed substrate

describe causes of a halo effect on the image

outline methods to check and adjust ink colour and consistency

describe adjustments that may cause mis-register

describe adjustments to position the image laterally and circumferentially

explain how changing colour sequence can effect the final colour cast

identify causes of excessive mechanical dot gain and the difference between mechanical and optical dot gain

describe the process for final approval before a print run

identify machine manuals, safety and other documentation relevant to this task, where are they kept, information included in these documents, and other sources of available information.