Automated adjustments to maintain the highest quality
Using the Intelligent Quality Optimiser [IQ-501] (option), it is now possible to automatically perform colour / front-to-back registration adjustments, thus considerably reducing the time required for adjustments and contributing to higher operation rate for production. Measurements and inputs performed manually in the past are no longer necessary. Less human intervention leading to fewer human errors enables the consistent provision of high-quality print products.
In addition, colour reproduction and front-to-back registration are monitored and controlled in real time during printing operation. Consistent realisation of high-quality print contributes not only to the reduction of print waste, thus reducing costs, but also to enhanced customer trust.
Hybrid colour measurement
The IQ-501 is furnished with two scanners, enabling measurements for front-to-back registration in one pass. Measured data is used for various auto adjustments and converted into density values for real-time adjustments. Konica Minolta’s spectrophotometer, which has won acclaim for its measuring accuracy is furnished. Hybrid colour measurement combined with scanners enables colour balance and printer profile adjustments with higher accuracy and in a shorter time.
| Option required | VI-511 (Image Processing Board) |
|---|---|
| Paper size | 95 × 139mm to 331 × 488mm |
| Paper weight | 62 to 350gsm |
| Reading width | Max. 350mm |
| Power source | 100 to 240VAC, 50/60Hz |
| Power consumption | Max. 700W (Inc. Connection Option) |
| Dimension (W × D × H) | 663 × 696 × 1,020mm |
| Weight | Approx. 184kg |
Major functions of IQ-501
■ Auto adjustment functions before production.
- Auto colour adjustment
- Density balance (unevenness) correction
- Maximum density adjustment
- Colour density control (Density gradation)
- Exact color (Colour gradation)
- Packaged auto colour adjustment (One step operation for above 4 items + machine calibration. 5 items are selectable)
- Auto front-to-back registration adjustment
■ Real time monitoring & correction during printing
- Real time colour correction
- Real time registration correction
■ Auto adjustment functions before production.
Packaged auto colour adjustment to save the adjustment time.
Real time colour and registration correction realises consistent high quality.
Real-time colour & registration monitoring and correction
Colour tone and front-to-back registration are monitored and automatically corrected in real time without degrading productivity. As a result, colour fluctuations and registration misalignment are controlled to a minimum, which helps provide high quality print products in a stable manner. Stable results are ensured in printing of company logos for which the colour stability is essential, and cards, page numbers of booklet and ruled lines for which accurate positioning is essential. In addition, print waste caused by instable colour and registration is minimised, contributing not only to cost reduction but also to improve customer trust.
CMYK and RGB+gray (3C) are alternately printed on the margin of the printed sheets. Registration marks are automatically printed on both sides of the sheet to check registration.
Technologies to support the consisten quality
High precision registration mechanism
A registration swing mechanism capable of highly accurate detection of paper misalignment and skew is furnished, realising a professional finish for duplex printing that needs to be accurate for use in additional printing and for trimming/bookbinding. The mechanism also automatically corrects paper-feeding misalignment in the main unit tray, contributing to both improved quality and higher productivity. Paper conveyed in misaligned orientation is pressed against the registration roller to correct the misalignment, while the registration swing mechanism moves shifted paper into the correct position.
Real-time image optimisation with IDC sensor
This function controls image stability in short intervals during continuous printing by detecting density correction patches and dot diameter correction patches created on the intermediate transfer belt furnished with an IDC sensor, delivering stable high quality for a wide range of densities through 2 types of density calibration. Reducing print waste relating to colour reproduction helps not only to reduce production costs but also to enhance customer trust.
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- Operates only when the image stability priority setting is enabled.
