Troubleshooting
Service Manual
6-3
Samsung Electronics
Scanning Error • Check the printer cable installed. • Check correct installation, and use standard
IEEE1284 cable.
• Check how TWAIN driver is installed. • Remove any other scanner driver.
• Reboot after reinstallation of the TWAIN
driver.
• Check the printer port(Parallel). • Check the parallel-port-related items in the
CMOS Setup.
As a printer port, Select ECP among
SPP(Normal), ECP, and EPP
modes(increase print-ing speed)
• Check harness contact. • Check CN12 contact in Main PBA
• Check the IEEE1284 signal level. • If any signal level is defective, replace
Driver PBA.
Main PBA = 0.8V to 2.4V TTL signal.
• Otherwise, replace Main PBA.
• Check the USB signal level. • If USB signal level is defective, replace
Main PBA.
Defective image • Check shading profile. • Remake shading profile in the tech mode.
Quality • Check the gap between original and scanner glass. • The gap above 0.5mm can cause a
blurred image.
Abnormal noise • Check the Scanner Motor and any mechanical • Check the right position of the Scanner
disturbance. Motor, and check the any mechanical
disturbance in the CCD carriaging part.
• Check the motor driver in Driver PBA. • If any driver is defective, replace it.
PROBLEM ITEMS TO BE CHECKED. HOW TO SOLVE
6.2.1.2 PC-Scan
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