Digital Troubleshooting
Contents
1. METAMARK GE Digital by Design Horizontal Print Banding Problem Hairline horizontal banding lt 0 5mm or fuzzy text Fine horizontal banding 1 8mm at consistent spacing Wide horizontal banding Approx 100 to 300mm at edges of print Explanation Poor nozzle alignment Check the test print for each colour and run a nozzle clean if necessary Solid colours should print solid Incorrect profile or incorrect media calibration settings Check the profile Too much ink too fast ie block colours on high speed settings Check the media calibration Try printing uni directional Exaggerated at each side of the roll when printing bi directional Media bruising This appears as watermarks generally at the edges of the roll Caused by the media being rested on the aluminium bars which sag and hence put more pressure at the ends or stored on its side Vertical Print Banding Problem Banding along the length of the print inconsistent solid colours Print Quality Issues Problem Specks in print Poor colour accuracy Poor fine definition Explanation Poor heater operation or heater settings Poor heater operation can cause variability of ink saturation across the roll If the media is too hot then it will visibly ripple or pickup the pattern of the plinth Explanation White specks caused by ink contamination or metal dust off printer Specks with dark centres caused by airborne co2. ntamination Remove any potentially contaminated layers of media check for visible contamination and feed again Incorrect profiling If it is a profiling problem check to see if any other problems are evident Media calibration Poor file image rendering or image sampling Some image quality problems can find their origins in the original file image rendering or the way it was edited image sampling It is far better to start with a high quality file than to print a poor file at high resolution Ink Pooling and Drying Problems Problem Poor print quality at the edges of the roll Ink pooling or mottling Mainly solid colours Ink does not dry off material becomes very soft when printed adhesive becomes weak Explanation Too much ink too fast particularly printing bi directional Check the profile It can be possible to reduce the problem by reducing the print speed or running the print uni directional Incorrect profiling heater settings roll too cold Generally caused by the printer delivering too much ink onto the media Also check the roll is at room temperature Incorrect profiles incorrect heater settings can occur particularly with high resolution images This will be either due to excessive ink being delivered to the media i e incorrect profiles or excessive solvents retained in the print i e insufficient heat Can be particularly profound on high resolution prints empl
3. oying alot of ink Digital Vinyl is lifting after Application Problem Edge curl or lifting Vinyl is delaminating from surface Vehicle Wrap vinyl is lifting or bubbling after some time Explanation This is acommon problem when cutting flush into the print on solvent prints and print and cut labels For print and cut applications Metamark MD P overcomes most of these problems Alternatively allow 24 hours after printing and before cutting or allow a border around the image Excess Solvents surface contamination material stressed Follow the recommended guidelines for surface preparation and application of media When applying calendered films avoid stressing them during application Incorrect application or installation Successful wrapping of vehicles requires skilled installation Metamark offers some guidelines for care and handing and installation Please Note The above data is given in good faith to provide an indication of the performance of the product Purchasers should consider the suitability of each product for its intended use and the purchaser assumes all risks in connection with such use Seller shall not be liable for damages in excess of the purchase price of the product nor for incidental nor consequential loss
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