Printer Supports DOS programs
At the point when a Windows PC controls a LaserJet, the Form Feed catch from time to time does anything when squeezed. It has a little marker light, and was typically utilized with exceptionally basic DOS programs that did not launch the last page subsequent to sending information to the printer, however it could likewise be helpful to print the information in the printer's memory if a program flopped really busy sending a page to be printed. Additionally, the "On the web" catch is really a flip switch, with the end goal that if the printer is now internet, squeezing Online makes the printer go disconnected and can be utilized to stop a runaway print work. Squeezing Shift-Reset will then reset the printer, clearing the rest of the undesirable record from the printer's memory, so it won't keep on printing it when brought back on line.
In specific cases, this may be the best way to recuperate one's information in case of a framework crash that happened while printing. The printer must be turned disconnected before the Form Feed catch will work. Most clients of spot grid printers in the 1980s presumably found the Online and Form Feed capacities self-evident, as most speck lattice printers had these catches and they worked comparably. The pointer on the Form Feed catch lights up when there is gotten information in the printer's support; this makes it substantially simpler to foresee what will happen if the printer is put on the web and another occupation is sent to it, or if sending of work in advance is continued. Before resetting the printer, it is important to make the PC quit sending information for the print occupation to the printer, on the off chance that it hasn't officially wrapped up that employment, through the PC's product. Something else, when the printer is returned on the web, it will begin accepting the employment from some place in the center, which will probably make a similar runaway issue repeat.