K110sm7e1.doc
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7. 3 Poor Imaging
7. 3. 1 Completely black
Cause Checking
order
Checking Result Treatment
Calibration 1 Can you fix the problem if you make
Shading and Color Correction?
(Refer to [8.4.1 Shading] and [8.4.2
Color Correction].)
Yes OK
Cable of CIS 2 Is the cable of each CIS connected
properly?
No Connect it properly, or
replace the cable if it is
broken.
LED of CIS 3 Is the LED of each CIS lighting? No 1. Check DC Power.
Replace it if broken.
2. Replace the CIS.
3. Replace Main PCB.
7. 3. 2 Vertical black lines
Cause Checking
order
Checking Result Treatment
Scan Glass 1 Is there any dirt or damage on the Scan
Glass?
Yes Clean or replace it.
Calibration 2 Can you fix the problem if you make
Shading and Color Correction?
(Refer to [8.4.1 Shading] and [8.4.2
Color Correction].)
Yes OK
Drive Roller 3 Are Drive Rollers dirty? Yes Clean them.
CIS 4 Can you fix the problem if you replace
the CIS?
Yes OK
7. 3. 3 Vertical white lines
Cause Checking
order
Checking Result Treatment
Scan Glass 1 Is there any dirt or damage on the Scan
Glass?
Yes Clean or replace it.
Calibration 2 Can you fix the problem if you make
Shading and Color Correction?
(Refer to [8.4.1 Shading] and [8.4.2
Color Correction].)
Yes OK
Drive Roller 3 Are Drive Rollers dirty? Yes Clean them.
CIS 4 Can you fix the problem if you replace
the CIS?
Yes OK
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