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Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again. Troubleshooting is needed to identify the symptoms.
Template:Use my dates. HP LaserJet 5 printer The Game Boy Pocket Printer, a thermal printer released as a peripheral for the Nintendo Game Boy This is an example of a wide-carriage dot matrix printer, designed for 14-inch (360 mm) wide paper, shown with 8.5-by-14-inch (220 mm × 360 mm) legal paper.
Laser head from HP LaserJet 5L printer. Most HP LaserJet printers employ xerographic laser-marking engines sourced from the Japanese company Canon.Due to a tight turnaround schedule on the first LaserJet, HP elected to use the controller already developed by Canon for the CX engine in the first LaserJet. [6]
In June 1978, the TX-80 (TP-80), an eighty-column dot matrix printer, was released to the market and was mainly used as a system printer for the Commodore PET computer. After two years of further development, an improved model, the MX-80 (MP-80), was launched in October 1980. [ 8 ]
[13] [16] It had an LCD screen, a rechargeable battery, and a calculator-size printer, in a 1.6 kg (3.5 lb) chassis, the size of an A4 notebook. [13] It was described as a "laptop" and "notebook" computer in its patent. [14] The Epson HX-20, the first "notebook computer", was invented in 1980 and introduced in 1982. GRiD Compass 1101 (1982)
It has been used for business laptops, such as Acer's TravelMate, Dell's Latitude, HP's EliteBook and Lenovo's ThinkPad. The pointing stick senses applied force by using two pairs of resistive strain gauges. A pointing stick can be used by pushing with the fingers in the general direction the user wants the pointer to move.
Some Dell Latitude D610 units with a dedicated ATI X300 graphics card seem to have problems with the audio-out jack. Symptoms of this problem include a noise or whine when an audio device is connected to the audio-out jack. Up to this date Dell does not have a clear solution to this problem. [24] [25] [26] [27]
In January 2007 a similar lawsuit started in Canada [citation needed], and Dell in the Netherlands has agreed to repair Dutch computers following criticism in the consumer programme Kassa. [84] This has also been a problem with the Inspiron 1150, with the same chip giving problems with broken solder. Re-soldering is not recommended.