Printers have certainly come a long way since the inception of the character and and dot matrix printers.
These ancient products (ancient in technical terms being as few as 10-15 years) were what are known as impact printers, simply because they needed to make a physical connection with the paper in order to achieve the ink-on-paper result.
Dot matrix printers came equipped with a group of pins that touched a ribbon which then connected with paper to produce the finished product. Character printers, which worked on the same principle as electric typewriters, used a bar or ball whose surface was embossed with all the characters you now see on any keyboard. These characters made contact with the ribbon, which in turn made contact with the paper.
Today we use non-impact printers - those that do not make physical contact with the paper to create the papered reproduction. The most prevalent for home or small office use is the inkjet printer - an economical choice for all but the most serious graphic arts requirements.
An inkjet printer produces the images and type it delivers from computer to paper by means of miniscule drops of ink. So miniscule, in fact, that a human hair would seem big by comparison. Standard ink drops of an inkjet printer have a diameter range of 50-60 microns. Arranged very precisely, these ink drops come in various resolutions (the higher the resolution, the clearer and more life like the output.) while 800x600 dpi (dots per inch) is a typical SOHO (small office home office) resolution producing quite adequate print quality, an inkjet printer can offer resolutions as high as 1440x720 dpi. Adding color to the mix can produce images nearly as high in quality as a laser printer product.
There are five basic parts to an inkjet printer: the print head assembly, the paper feed assembly, circuitry control, power supply, and printer ports.
The print head assembly is the heart of the printer workings. It's what brings the ink to paper by means of a row of nozzles. The print head may be part of the inner workings of a printer cartridge, or they may be separate parts. Cartridges are responsible for delivering color and shading. Most inkjet printers made nowadays offer color printing. Some may require as many as three distinct cartridges, but generally at least two - one black, one color. The motor is part of the print head assembly as well. It's the part that enables the ink and cartridges to move across the paper and produce the hard copy. It also keeps the cartridge stable when not in use.
The paper feed assembly includes the paper tray, which holds the paper ready for a printing request, and the rollers, which deliver the paper to the ink when a printing job is requested.
The power supply is simple - it's what gets the electricity to your printer so that it can do its job. Printer circuitry controls take the message from your keyboard and mouse and deliver it to the printer so that the requested hard copy can be produced. Printer ports, also referred to as interface ports, much like a telephone jack, enable the peripheral (the printer) to talk to the computer. While in older models parallel ports were the norm, the newest printer models connect via USB ports, which require a special USB cord.
Showing posts with label printers. Show all posts
Showing posts with label printers. Show all posts
Wednesday, December 22, 2010
Thursday, January 14, 2010
7 Ways To Ensure Your Artwork Is Print Ready
The following article provides a quick guide on what to think about when preparing your artwork for printing.
It is important you follow these guidlines as any errors made are likely to cause a delay or cause unncessary stress should the final print quality be sub-standard.
1. Check your files
Check your artwork for spelling mistakes, grammar and ensure all images used are high resolution. Double check to make sure as any errors found will delay the turnaround of your product.
2. Bleed
Bleed is the extra bit of the design page which you design on, as normal, with the knowledge that it will be trimmed off the finished flyer. Any images on your artwork should bleed off the page, and essential text should be away from the trim edge by a good few mm's. We use a 2mm bleed area on each edge.
3. Text
Keep essential text away from the edge of the flyer, by about 8-10mm for best results.
4. Print Resolution
Ensure your artworks resolution is at least 300dpi. The higher the resolution the better.
5. File Formats
If you are using un-common fonts, ensure you supply your artwork as a flattened jpeg or tiff. This will ensure there will be no font problems when your artwork is checked. The most commonly accepted program formats are Quark, Illustrator, Photoshop, Corel Draw, Corel Paint, Freehand, InDesign and Paint Shop Pro. Vector files such as .eps and pdf's are becoming more common and ensure a better end product.
6. Colours
Unless you have a calibrated monitor your artwork is likely to have slightly different colours when printed. Ensure your colour choices are correct before sending to print.
7. A Final Check
Before sending to your printer, have one more final check that everything is as expected.
WARNING
There are two things you should consider when designing your flyers:
Due to the quick turn around of our flyers, they are trimmed down not long after they are printed, in most circumstances we try to give a printed sheet 8 hours to dry completely, this isn't always the case. This is noticeable when one side of the flyer is left white, and the other side bleeds rich colour to the trim edge. This will cause slight powdering of the rich ink over, on to the white side. In this circumstance we recommend the use of borders.
Borders on the edge of a flyer, can sometimes give the flyer a classic look. But make sure the borders are a good few mm in from the trim edge, because of the way we print flyers (up to 32 at a time) and the speed at which we turn them round (from payment, to your door) these borders may not be an accurate trim to the exact 10th of a mm. This is why we ask for a 2mm bleed. The cutting blade could go either way. We cannot be held responsible for imperfect results if these borders are slightly uneven.
It is important you follow these guidlines as any errors made are likely to cause a delay or cause unncessary stress should the final print quality be sub-standard.
1. Check your files
Check your artwork for spelling mistakes, grammar and ensure all images used are high resolution. Double check to make sure as any errors found will delay the turnaround of your product.
2. Bleed
Bleed is the extra bit of the design page which you design on, as normal, with the knowledge that it will be trimmed off the finished flyer. Any images on your artwork should bleed off the page, and essential text should be away from the trim edge by a good few mm's. We use a 2mm bleed area on each edge.
3. Text
Keep essential text away from the edge of the flyer, by about 8-10mm for best results.
4. Print Resolution
Ensure your artworks resolution is at least 300dpi. The higher the resolution the better.
5. File Formats
If you are using un-common fonts, ensure you supply your artwork as a flattened jpeg or tiff. This will ensure there will be no font problems when your artwork is checked. The most commonly accepted program formats are Quark, Illustrator, Photoshop, Corel Draw, Corel Paint, Freehand, InDesign and Paint Shop Pro. Vector files such as .eps and pdf's are becoming more common and ensure a better end product.
6. Colours
Unless you have a calibrated monitor your artwork is likely to have slightly different colours when printed. Ensure your colour choices are correct before sending to print.
7. A Final Check
Before sending to your printer, have one more final check that everything is as expected.
WARNING
There are two things you should consider when designing your flyers:
Due to the quick turn around of our flyers, they are trimmed down not long after they are printed, in most circumstances we try to give a printed sheet 8 hours to dry completely, this isn't always the case. This is noticeable when one side of the flyer is left white, and the other side bleeds rich colour to the trim edge. This will cause slight powdering of the rich ink over, on to the white side. In this circumstance we recommend the use of borders.
Borders on the edge of a flyer, can sometimes give the flyer a classic look. But make sure the borders are a good few mm in from the trim edge, because of the way we print flyers (up to 32 at a time) and the speed at which we turn them round (from payment, to your door) these borders may not be an accurate trim to the exact 10th of a mm. This is why we ask for a 2mm bleed. The cutting blade could go either way. We cannot be held responsible for imperfect results if these borders are slightly uneven.
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