Itâs rare to be deficient in biotin. Symptoms include hair loss, dry scaly skin, cracking in the corners of the mouth (called cheilitis), swollen and painful tongue that is magenta in color (glossitis), dry eyes, loss of appetite, fatigue, insomnia, and depression.verview. Vitamin H, more commonly known as biotin, is part of the B complex group of vitamins. All B vitamins help the body to convert food (carbohydrates) into fuel (glucose), which is used to produce energy. These B vitamins, often referred to as B complex vitamins, also help the body metabolize fats and protein.
A parallel cable contains one 25-pin connector with pins on one end that plug into your computer's parallel port and a 25-pin connector on the other end that doesn't contain pins that plugs into your printer. You cannot swap the cable's ends, since the cable's ends fit in only one way.
Close any open programs on your computer and restart the operating system. Press the printer's Power button to turn it off as well. Unplug the printer's power cord from the printer. After 5 seconds, reconnect the power cord and turn the printer back on.Verify that the USB cable that connects the computer to the printer is securely plugged into both devices.Move the cable to a USB plug on the computer that has worked with other USB devices.nplug the printer's power cord from the printer. After 5 seconds, reconnect the power cord and turn the printer back on. Verify that the USB cable that connects the computer to the printer is securely plugged into both devices. Move the cable to a USB plug on the computer that has worked with other USB devices.