FAQ's


What is PoliJet system?

PoliJet System is the world’s first and only Inkjet, No process, Polyester, Computer-to-Plate-to-Press solution designed for production of short (500 to 1500 impressions) to medium run (2,000 to 8,000 impressions) commercial work in an offset printing press.

What are the components of a PoliJet System?

PoliJet System consists of PoliRIP software that is loaded in user’s high-speed PC, a PoliJet Inkjet Platesetter; which is essentially similar to the EPSON Stylus Pro inkjet printer and a PoliJet Baking Oven.

What is the basic purpose of the different components of the PoliJet System?

The PoliRIP software rasterises the input image to make is printable through PoliJet Inkjet Platesetter.
The PoliJet Inkjet Platesetter (EPSON Stylus Pro printer) images the PoliJet Plate (also PosiJet Film and NovaJet Proofing Papers) with Photo Black Ink (pigment based) and it also has the capability to print vivid colour prints. Thus, this device acts as a 3-in-1 device; as a Platesetter (imaging PoliJet Inkjet Plates), as an Imagesetter (imaging PosiJet Inkjet Films); as a Proofer (imaging NovaJet Proofing Medias).
The PoliJet Baking Oven heats up the surface of the PoliJet Plate to an optimum temperature; thereby ensuring a proper bonding of the image onto the PoliJet plate surface, thereby ensuring the required run-length.

What is PoliJet Inkjet plate?

PoliJet is the first and only polyester inkjet computer-to-plate solution made specifically for the medium to small offset printers and publishers.
PoliJet’s patented* technology has enabled us to offer entry level CtP solutions for the print fraternity.
* Patent applied for.

What is PosiJet?

PosiJet is the polyester inkjet computer-to-film solution. PosiJet is ideal for making Positives and Negatives** using inkjet technology for plate ready 4 colour separations.
** Ink usage is higher as compared to making Positives.

Can a Polyester plate print with same ease as of an Aluminium PS Plate?

Yes. As a matter of fact, Aluminium PS plates need development and are sensitive to light. Where-as PoliJet plate is day-light safe is not affected by light and needs no developing or processing. PoliJet is press-ready after imaging.

How is PoliJet different from other laser polyester plates?

The difference is in the coating and surface properties of the polyester. Unlike laser plates, the PoliJet plates go through a complex process of multiple layering of proprietary coating procedures.
The quality limitation of laser plates limits the reproducible screening to less than 100lpi, whereas PoliJet enables a screen ruling of upto 150 lpi.
Furthermore, laser plates have size limitations, linked to the width restrictions of the laser imaging device. For PoliJet there are no size constraints, it is available in 2up, 4up, 8up and higher.

What are the benefits of using PoliJet computer-to-plate solution?

Electronic design, composition, and publication are becoming universal. Customers are bringing in more short-run jobs in digital format and demanding faster turnaround times at reasonable prices. This trend has required printers to integrate prepress and printing operations to improve process control and to reduce costs. Using CtP, the printer can improve turnaround times

  1. by eliminating the steps of film production, layout and stripping, and plate contacting;
  2. by reducing errors requiring remakes;
  3. by reducing the time for plate remakes and last minute changes;
  4. by improving plate quality and registration for a faster roll-up on press;
  5. and at the same time, the printer can reduce costs by eliminating the labour and materials associated with the film process.
PoliJet Inkjet System offers the best cost-in-use CtP solution for the printers. It serves as a stepping stone for analogue printers to migrate to the CtP arena.

How do the PoliJet plates perform on the press?

PoliJet plates perform at the same level that an Aluminum PS plate performs. Initially, operators may find it difficult to mount on the press, as Aluminum is stiffer than Polyester. With experience the operator will find it easy to do.

What are the special settings needed on the press to run PoliJet plates?

There are no special settings needed on the press to run PoliJet plates.
PoliJet plates are available in 3 standard thicknesses; 0.15mm, 0.20mm and 0.28/0.30mm. Depending on your machine specification you may choose the plate thickness suitable for your press.

How are the PoliJet plates are imaged?

PoliJet plate-making is a process-less CtP operation.
It involves a simple 3 step operation with minimal to no operator interventione.
RIP the image through PoliRIP and "send" the job to the PoliJet Inkjet Platesetter. It will start imaging the plates. After the image creation is over, pass the plate through the PoliJet Baking Oven.
Your plate is ready for mounting on the Offset Press. It involves no chemistry and doesn’t require any special lighting condition.

What is PoliJet Inkjet Platesetter?

PoliJet Inkjet Platesetter is an inkjet imaging device resembling a large format inkjet printer. Essentially it is the result of a joint effort between EPSON and TechNova. In appearance and functionality it greatly resembles the EPSON Stylus Pro series devices.
The PoliJet Inkjet Platesetter uses pigment-based inks that bond with the coating on the plate’s surface.

Why do I need the PoliJet Baking Oven?

Baking PoliJet plate will bond the inkjet ink with plate surface much harder than otherwise, thus ensuring a strengthening of the bond between inkjet ink (the image) and the plate – this process is also called fusing. After fusing the PoliJet plate, it will give a run length up to 20,000 impressions, based on the condition of the Offset Press.

Do I need a Plate Processor?

No.
PoliJet plate-making is processless and a dry imaging process, it doesn’t involve any chemistry. Therefore worries of disposal of hazardous chemistry are no more.

What are the quality standards of a PoliJet Plate?

The PoliJet plates are designed for production of any short to medium run commercial work of single colour and spot colours. It also offers the Quick Printers the opportunity to upgrade from laser plates to four colour capable inkjet plates.
The quantitative output capabilities of PoliJet plates are listed below:

  • Spot Size – 25-40 micron
  • Reverse type reproduction – 6-8 pt
  • Dot reproduction – 2-95% dot
  • Screen Ruling – upto 150 lpi
  • Physical Dot Gain – 25 - 40% on print
  • Print run-length – upto 20,000 impressions
  • Registration accuracy – 5 - 25 µ tolerance
What software drives the system?

PoliRIP, a Workflow-cum-Raster Image Processor (RIP) software from TechNova is tailor-made for driving the PoliJet Inkjet Platesetter.

Can I use my existing Platesetter / Imagesetter RIP to drive the PoliJet System?

No. The PoliRIP software has been specially designed for ensuring optimum performance of PoliJet Plates and PosiJet Films.

Can I use any other Inkjet RIP to drive the PoliJet System?

No. Most of the Inkjet RIPs available in the market are meant for colour proofing, whereas the need for PoliJet is to reproduce half-tone screening which is free from any screening artefacts.

How is PoliRIP different from other Inkjet RIPs?

Primarily, PoliRIP is a fit-for-purpose RIP that functions as a workflow solution and is capable of driving the PoliJet Inkjet Platesetter as a Platesetter, an Imagesetter and a Proofer.

How much computer expertise would I require to operate the PoliJet system?

For a small to medium sized printer the PoliJet system acts as a stepping stone for entering into the digital imaging arena. PoliRIP requires basic understanding of computer systems and any knowledge of graphics software would be an added advantage.
Functionally, your DTP department will be able to handle the PoliJet system efficiently and effectively.

Can I load the PoliRIP software on my Macintosh system?

No. Current version of PoliRIP is not compatible with MAC OS.

Can I use my Macintosh System to fire a job to the PoliRIP?

Yes. The PoliRIP software Ticket Editors are visible as printers in the network. If your Mac Station is connected through a network then you will be able to send the job from your Mac Station directly to the PoliRIP loaded in the PC server.

What screening technology is used to print to PoliJet Plate?

PoliJet is a four colour capable digital plate which can accept AM, FM and hybrid dots.
Through user experience, we recommend that the most suitable screening for PoliJet plates is ABS (Agfa Balanced Screening). ABS is a specialised screening technology that gives a clear artefact free image with vivid details of half-tone, shadows as well as mid-tones.

Can I use the PoliJet system for proofing?

Yes. PoliJet system provides the option of vibrant Inkjet proofing, using the same PoliJet Inkjet Platesetter.
PoliJet system also has the optional feature of half-tone proofing, which can be added on as a separate module.

Can I use dye based ink for imaging PoliJet Plates?

No, PoliJet plates and PosiJet films are both not compatible with Dye based Inks.

Can I use EPSON Matte Black Ink for imaging PoliJet Plates and PosiJet Films?

No, PoliJet plates and PosiJet films are only performance guaranteed to the stated specifications with the us of genuine EPSON Photo Black Ultrachrome Ink.

Can I use any other InkJet Printer to image PoliJet plates?

TechNova guarantee the performance of PoliJet plates with EPSON's latest large format series printers using genuine EPSON inks.
Theoretically, PoliJet plates can be imaged on any inkjet printer using pigment inks. But, the quality of reproduction will be largely varying and onpress performance will be erratic.

How many Plates can I image in an hour?

The speed of the system depends largely on the quality requirement and the size of the image.
For example: 550 mm X 650 mm size of plate imaged at 1440 X 1440 dpi resolution will take 15 minutes to image i.e. 4 plates per hour.

Do I need an UPS for the PoliJet system?

This depends on local electricity considerations.
For variable supply environments, a UPS is a must for consistent output of imaged plates The recommended UPS rating is 500 VA+.
For details refer the Pre-installation check list.

What is the support service for the PoliJet system?

PoliRIP: TechNova provides warranty and full support service for the software from its Head Office in India, as well as through our local representatives and authorised in-country Channel Partners.
PoliJet Inkjet Platesetter: EPSON provides the warranty and support service, through their local sales and service channel.
PoliJet Baking Oven: TechNova provides warranty for Baking Oven through their country specific authorised sales and support channel partner.

In which countries are you going to promote the PoliJet system?

Please refer our website www.polijet.com and check the presence of our Sales Offices and Channel.
In case your country is not listed, please contact the PoliJet support team at help@technovaworld.com and we will advise of your nearest supplier.

Where can I purchase a PoliJet system?

We have our offices and channel partners all around the world. To find a supplier close to you, check on our website www.polijet.com or write to us at help@technovaworld.com

How can I learn more about PoliJet system?

Visit our website www.polijet.com
Or call us on Toll-free (India) - 1 800 22 7474

Incase the HASP key (hardware protective key / Dongle) is lost / damaged can a new HASP key be purchased?

In case the hardware key (also known as a Dongle) is physically damaged, we can provide a replacement at nominal cost subject specifically to the return of the original damaged key.
If the hardware key is lost, this will be like having lost the total software package and licence. On this basis, you will a “new” hardware key which will be supplied at the then full cost of the RIP. In view of this, you are advised to have the hardware key insured to its full replacement value against loss of theft.

What file formats are accepted by PoliRIP?

Traditionally, when you’ve finished editing a document and it’s ready to be sent for output, the way to send the file to a RIP is to print the file. When you click Print, the application and the printer driver generate a PostScript file which is sent over the network to the RIP for processing.
But there are other methods of sending the file into to RIP. PoliRIP accepts ‘drag and drop’ the following file formats: .pdf, .ps, .eps, .tiff as a standard.

What is the recommended system configuration for PoliRIP software?

PoliRIP runs best on a ‘Windows XP Professional’ OS based PC. Recommended minimum hardware configuration is:
3.0 GHz + Pentium IV
Windows XP Professional (Service Pack 2)
1.0 GB + RAM (the higher the better)
80 GB + Hard Disk space (depending on work load)

What is the imaging fluid used for PoliJet Plates and PosiJet films?

Genuine ‘Ultrachrome’ and ‘Ultrachrome K3’ inks from EPSON. These may be purchased from EPSON’s authorised resellers, TechNova or TechNova authorised resellers.

Can I use any third party ink for imaging PoliJet Plates and PosiJet Films?

PoliJet and PosiJet performance is guaranteed only with genuine EPSON Ultrachrome Photo Black Inks.

Does PoliJet require any special chemistry on press?

PoliJet performs with all standard fountain solutions and inks on press.
However, we recommend the use of ‘PoliJet Fount’ for optimum ink-water balance on press and ‘PoliJet Plate Cleaner’ for cleaning the scum on press.

Can I use PoliJet plates for repeat jobs?

We do not recommend re-use of PoliJet plate.
However, we have some of users of PoliJet who experience trouble-free reprints from PoliJet plates.

Does TechNova provide training for the PoliJet system?

Yes, at the time of installation we provide training for two staff for two days on-site.
Terms and details of the training wold be established at time of confirmation of purchase of the PoliJet system. For further training requirements at TechNova, we have state of the art application lab fully equipped with workflow and test equipments. Teaching is conducted through a combination of conventional desk based traning and practical hands on training. We also use interactive multimedia as a tool to aid the training.


Specifications, answers given, and terms are subject to change without notice.

EPSON, EPSON Stylus, and MicroPiezo are registered trademarks, and EPSON UltraChrome, EPSON UltraChrome K3 are trademarks of Seiko EPSON Corporation.
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