IR 6000 ADF SCANNER

[ybnews]

When I use the ADF Scanner the copies come out with a dark shadow along the bottom (operators side)
If I set the exposure to the lightest setting before feeding it gets lighter>
When I set exposure to the darkest setting it gets worse.
It almost looks like a light leak.
This does not happen when I copy from the glass or transferred from my desk top computer.
I have cleaned the mirrors and photo lens. No improvement.
I suspect the lamp in the ADF scanner.
Any suggestions on how to address this?
This is a Canon IR 6000 with 4 million copies on it.
Thank you.

[teckat]

Re: IR 6000 ADF SCANNER

When I use the ADF Scanner the copies come out with a dark shadow along the bottom (operators side)
If I set the exposure to the lightest setting before feeding it gets lighter>
When I set exposure to the darkest setting it gets worse.
It almost looks like a light leak.
This does not happen when I copy from the glass or transferred from my desk top computer.
I have cleaned the mirrors and photo lens. No improvement.
I suspect the lamp in the ADF scanner.
Any suggestions on how to address this?
This is a Canon IR 6000 with 4 million copies on it.
Thank you.

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DADF-D1 did u inspect the slit glass for debris / marks / or dust on it.


u have>Document Feed Stream Reading
With ADF in use: by stream reading while holding the No. 1 mirror base fixed in position.

Edge Gain Correction (ADF in use)
In stream reading with the ADF in use, the No. 1 mirror base is fixed in position.
To check for changes in the intensity of the scanning lamp, the edge gain correction plate (gray;
mounted at the edge of read position) is read, and a gain that enables the attainment of a
specific intensity is computed.
The result is used to correct the data which otherwise would be affected by changes in the
intensity of light.

COPIER>FUNCTION>EGGN-POS
Use it to execute auto adjustment for the edge gain correction position for the CCD. (The CCD edge gain correction mechanism is effective only when an ADF is in use.)

Using the Mode
1) Open the ADF (copyboard cover; be sure to do so).
2) Select the item, and press the OK key.
3) Wait until auto adjustment ends (about 1 sec).
4) See that auto adjustment ends automatically and the results (OK/NG) are displayed.
• If NG is indicated, check the following, and execute adjustment once
a. Is the ADF (copyboard cover) open?
b. Is the reading glass mounted correctly?
c. Is the edge gain correcting plate attached to the reading glass normal?