Pc-Scan - Ricoh B174 Service Documentation

PC-SCAN

Problem
Scanning
• Check the printer cable is correctly
Error
installed.
• Check that the TWAIN driver is
installed.
• Check the printer port (Parallel) BIOS
settings.
• Check the harness connection.
• Check the IEEE1284 signal levels.
• Check the USB signal level.
Defective • Check shading profile.
image Quality
• Check the gap between original and
scanner glass.
Abnormal • Check the Scanner Motor and
noise
mechanical problems in the scanner.
• Check the motor driver in the Main
PBA.
SM
Items to be Checked.
4-5
TROUBLESHOOTING
How to Solve
• Use a standard IEEE1284
cable.
• Remove all other scanner
drivers.
• Reboot after you reinstall the
TWAIN driver.
• Check the parallel port
related items in the CMOS
Setup. For a printer port,
make sure that ECP is
selected.
• Check CN12 connection on
the Main PBA
• If a signal level is defective,
replace the Main PBA.
• If the USB signal level is
defective, replace the Main
PBA.
• Do the "Adjust Shading"
procedure in Tech mode.
• A gap above 0.5 mm can
cause a blurred image.
• Check for mechanical
problems in the scanner
carriage, motor, gearbox,
belt and belt tension spring.
• Make sure that the scanner
motor position is correct.
• If a driver is defective,
replace the Main PBA.
B174