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 »  Home  »  Troubleshooting Computer Page 4  »  Error writing to LPT1
Error writing to LPT1
Published  06/29/2011 | Troubleshooting Computer Page 4 | Unrated
Error writing to LPT1

Cause: There are multiple possibilities.

Solution: There are quite a few ways to fix this error. First, make sure the printer is online and that there is sufficient paper in the tray(s). Then, clear the printer’s memory by turning off the printer, and check whether the printer cable is properly connected. If you still get the error, remove the printer drivers by going to Add/Remove Programs, and reinstall them. If you still can’t print, then check the parallel port settings by right-clicking My Computer and selecting Properties. Go to Device Manager, doubleclick ‘Ports (COM and LPT)’ and double-click ‘Printer Port (LPT1)’. Select the Resources tab and check the ‘Conflicting device list’ box for an IRQ or DMA conflict. If another device is using the printer port’s IRQ, disable that device or assign it a new IRQ.

To disable the device, locate it in Device Manager, open its Properties dialog box, select the General tab, and check ‘Disable in this hardware profile’. To look for a DMA conflict, first check whether your printer port is configured as an ECP port (the latest parallel port technology designed to speed up printing by using a DMA; older settings are Standard, Bi-directional, and EPP). If your printer does support ECP, assign the parallel port to an unused DMA, usually in the BIOS.

If your printer doesn’t support ECP, configure the parallel port to a slower, compatible setting. The next-best option is EPP. If your printer doesn’t support that either, go with Standard - the slowest but the most compatible setting.

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