Known as a tractor feed, in which a roller with pegs that engage in holes punched along both edges of the paper, is used to move the paper through the printer. The paper used is normally continuous fan-fold listing paper.
The second type of dot matrix is one that has rubber rollers instead of a tractor feed. Here, single sheets or two sheets with a carbon sheet in between, can be either hand fed or auto fed from a paper tray. A detachable tractor feed tool can be fitted if continuous listing paper is to be also used on this type of dot matrix printer.
pin-feed paper
Earlier dot-matrix printers used a transport mechanism called tractor feed to move perforated sheets of a folded stack of pages through the printer. Removable strips lined both sides of the paper; the strips were punched with spaced holes. Wheels or belts with teeth that mated with the spaced holes moved the paper through the printer. While these printers were rarely found in homes after inkjet printers became popular, they can still can be found in commercial or government sites.
Often used in an office, a dot matrix normally uses continuous, fan-fold, listing paper. A tractor roller (pegs on the roller engages punched holes on both edges of the paper) is used to feed the paper through the printer. This set up means that the printer can be left unattended while printing lots of data over many hours. Some dot matrix printers may have rubber rollers instead of a tractor roller. The paper used here could either be A4 or A3 single-sheet paper, or if a detachable tractor unit is clipped on to the printer, listing paper (as described above) could be used as and when required.
paper got feed in unproper position. wrong type of paper (letter, a4, legal...etc) Disfungsional roller if you used paper is involved - forgeting there's a staples on it !
That would be some old printer paper! Before ink jet and laser printers, there was the DOT MATRIX PRINTER. The holes on either side of the paper allowed it to be fed through the printer and so printing was possible. It was referred to as tractor feed paper.
The quality of a dot matrix printer depends on whether it has 9 or 24 pins. Compared to an inkjet or laser, the quality can be less. It rather depends on what the dot matrix will be used for? As an impact printer, it is mostly used to print through the pages of multi-paged, continuous, listing paper, as used in many offices. Such paper needs a tractor feed (pins on a roller engaging holes punched along the edges of the paper), and can be left unattended while printing takes place. If rubber rollers are used instead, printing can be done on A4 single-sheet paper from a tray, or hand-fed on A4 multi-pages to produce a top copy and a carbon copy.
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dot matrix printer
Dot matrix printers have various characteristics. They are able to print in a bi-directional manner, pull continuous-feed paper using sprockets, pull single sheets using pressure, can print approximately 50 to over 500 characters per second and have between 9 to 24 pins that determine the quality of print.
A dot matrix is known as an "Impact Printer" in which pins (usually 9 pins or 24 pins) are fired against an inked-ribbon (as used in typewriters). This enables the use of multi-paged, continuous, listing paper to be used in an office, and can be left unattended to complete long print jobs. A tractor roller, that has pegs that engage with holes punched both sides of the paper, will draw the paper through the printer. If a rubber roller is used, instead, standard A4 single-sheet paper, or two pages with a carbon sheet between, can be fed into the printer either by hand or from a paper storage tray.
paper got feed in unproper position. wrong type of paper (letter, a4, legal...etc) Disfungsional roller if you used paper is involved - forgeting there's a staples on it !
Continuous fan-fold, multi-page listing paper. Such paper is mainly used in offices where large volumes of data needs to be printed without the close supervisation usually required with A4 pre-cut paper as used in injets and lasers.