Samsung Lazett Combo SCX-4216F, Руководство по обслуживанию

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7-22
TROUBLESHOOTING
Samsung Electronics
Service Manual
7.5.3 Abnormal noise
• Description There is noise when copy.
Check and Cause Solution
1. Check the Scanner Motor and any mechanical
disturbance.
2. Check the Motor Driver in Driver PBA.
7.5.4 Defective Image Quality
• Description The copied image is light or bad.
Check and Cause Solution
1. Check shading profile.
2. Check the gap between original and scanner
glass.
3. Check printing quality.
1. Remake shading profile in the tech mode.
2. The gap above 0.5 mm can cause a blurred image.
3. See “Print” troubleshooting.
1. Check the right position of the Scanner Motor, and
check the any mechanical disturbance in the CCD
carriage part.
2. If any driver is defective, replace it.
• Connection PBA U4-1, 19 or U5-1, 19=0V to 24V
swing signal when operating.