Download BayTech PS-4E Specifications
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■ Gray print or gray background. As the photoreceptor drum in a laser printer wears, it begins to hold less of a charge, and less toner adheres to the drum, resulting in printing that is gray rather than black. On printers that include the drum as part of the toner cartridge, this is not usually a problem because the drum is changed frequently. Printers that use the drum for longer periods of time often have a print density control that enables you to gradually increase the amount of toner dispensed by the developer unit as the drum wears. Eventually, however, you will have to replace the drum; at that point, you must lower the print density back to its original setting, or you might find that your prints have a gray background because the developer is applying too much toner to the photoreceptor drum. ■ Loose toner. If the pages emerging from your laser printer have toner on them that you can rub or brush off, they have not been properly fused. Usually, this means the fuser is not reaching the temperature necessary to completely melt the toner and fuse it to the page. A problem of this type nearly always requires professional service. ■ Solid vertical black line. A vertical black line running down the entire length of several consecutive pages is a sign that your laser printer’s toner cartridge might be nearly empty. Shaking the cartridge can usually eliminate the problem, but eventually you will have to replace it. ■ Frequent paper jams. Paper handling can be a delicate part of the printer mechanism, which is affected by several elements. Printer jams can result when paper is loaded incorrectly into the feed tray, when the paper is damp or wrinkled, or when you use the wrong type of paper. Occasional jams are normal, but frequent jamming can indicate you are using paper stock that is too heavy or is textured in such a way as to be improper for laser printing. Jams also can result when the printer is not resting on a level surface. Envelope handling is often the weak spot in paper handling, especially with older laser printers or low-cost inkjet printers. Because of their uneven thickness, they tend to produce a high percentage of jams. Even if your printer is designed to handle multiple envelopes, consider feeding them one at a time if you have problems, or use alternative addressing means, such as clear labels. ■ Blank pages appear between printed pages. Paper that is damp, wrinkled, or too tightly compressed can cause two or more sheets to run through the printer at one time. To prevent this, store your paper in a cool, dry place; don’t stack the reams too high; and riffle through the stack of paper before you insert it in the feed tray. This also can be caused by different paper types or sizes loaded in the IN tray at the same time. Note Before you look for a paper problem, be sure to check the printer setup. Some printers, especially on networks, are set to use a blank page to separate print jobs. ■ Memory overflow/printer overrun errors. These errors indicate that the job you sent to the printer was too complex or consisted of more data than its buffers could handle. This can be caused by the use of too many fonts, text that is too dense, or graphics that are too complex. You can resolve this problem by simplifying your document, reducing the graphics resolution or installing more memory in the printer. You also can try adjusting the page-protection setting in your printer driver (see the previous option). Connection Problems ■ Gibberish. If your page printer produces page after page of seemingly random “garbage” characters, the problem is probably that the printer has failed to recognize the PDL used by the print