Problem: On a dot-matrix printer, there are white lines through characters.
Solution: This happens when one of the pins in the print head is broken. This must be fixed by a printer service center.
Problem: The print out has white lines through out it and the whole document is elongated.
Solution: The printer's auto-linefeed mode is enabled which adds an extra linefeed after every carriage return. This is usually a switch setting on the printer itself. Refer to your printer's manual for information on setting this feature.
Solution: On some printers, the linefeed mechanism and platen can fall out of adjustment. This causes a misfeed as it advances the paper. This must be corrected by a printer service center.
Problem: When printing to a laser printer, you get only part of the image or a blank page.
Solution: The printer doesn't have enough memory to store the image at the resolution you requested. A full page 300 dpi image takes about 800K, plus overhead for the printer. Try printing at a lower resolution to solve the problem.
Problem: The printer prints "garbage" on the page.
Solution: Most likely the printer driver is set up improperly. Programs need to know how to send information to the printer. If the driver is set for a printer other than the one you're using, the printer will not know how to respond. Be sure to select the proper driver for your printer. Your printer's manual should tell you what driver to select.
Solution: The cable may not be connected properly. This will introduce random signals, garbling the output. Check to see that the cable is connected properly.
Problem: Your serial printer doesn't work with some of your software.
Solution: Unlike parallel printers, the computer must be told how to communicate with serial printers. Some programs have this control built in. Other require you to use a MODE statement in DOS to set the right protocols. Refer to your DOS and printer manuals for more information.
Problem: Output from the laser printer is streaked, either black or white.
Solution: Build up on the corona wires or photo-drum can streak the toner. Try cleaning the corona wires very carefully. If the problem persists, try replacing the toner cartridge.
