cpu usage

100 Percent CPU Usage Occurs When You Print on an LPT Printer Port

When you print on an LPT printer port, 100 percent CPU usage occurs until the print job is completed. This slows down other programs until the print job is completed. In some case, other programs may slow down enough that they seem completely unresponsive. This behavior affects all power users who have many programs running at one time. This behavior is by design. This behavior occurs because Windows does not have interrupt support for LPT printers. To work around this behavior, print...

After Install a Visioneer USB Scanner I have a high cpu usage

Problem:After You Install a Visioneer USB Scanner the CPU Usage May Be Unusually High. CAUSE: This problem can occur because the device drivers that are used with these scanners "poll" a device to receive device notifications, such as, button pushes. USB provides a separate pipe that the device driver can use to support device events, but the firmware of the scanner does not use this feature, and therefore causes the devices to be polled. SYMPTOMS: When you use a Visioneer universal...