T- 2 7
(2) Image reading system: Low image density
<Sample of Image Quality Problem>
<Troubleshooting Procedures>
Step Check Result Action
1 Is the surface of the Original Glass dirty? YES Clean it.
2 Are the Shading Sheet or back surface
of the Original Glass dirty?
YES Clean them.
3 Are the mirror or lens dirty? YES Clean them.
Replace the Scanner Assy.
4 Is the Exposure Lamp dirty? YES Clean it.
Replace the Scanner Assy.
5 Are there no bent connector pins on the
cables connecting the control boards,
are all connectors correctly plugged in,
and are no cables broken?
NO Correctly plug in the connectors.
Replace connection cables.
4011T003AA