Frequently Asked Questions

Configuring All Other Printers to work with Plug-N-Scan Scanners

Description:

Scanning works correctly, but user is unable to print from any program when the printer is attached through the scanners pass-through parallel-port.

Solutions:

Option 1: Use Bi-Directional A-B Switch Box

Customers who wish to purchase manual A-B switch boxes to switch back and forth between scanner and printer should be sure to purchase bi-directional Switch boxes. Purchasing a low-cost unit which doesn’t support bi-directional switching will not allow the printer or scanner to work correctly.

Option 2: Only Plug the Scanner in when Scanning

Customers who are not going to be scanning often also can switch the cable by hand to select either the Mustek scanner or the Printer.

Option 3: Disable Bi-Direcitonal Communications in your printer's Configuration Utility

The best solution may be to disable bi-directional communications in your printer's Configuration Utility. The printer will no longer send messages such as "No Color Cartridge Installed" or "Out of Color Ink". However, these are easy to determine by looking at the printout. Note: turning off bi-directional communications does not affect print speed or print quality. For brands other than Hewlett Packard and Epson, you will have to contact your printer manufacturer for assistance in disabling bi-directional communication. After disabling bi-directional communication in accordance with the instructions obtained from the printer manufacturer, your printer will function correctly.