Original left on glass or detecting A4 with no paper C368

[lazymangr]

Re: Original left on glass or detecting A4 with no paper C368

Nop. No scanner board no lens board from other machine. Same thing.

[tulintron]

Re: Original left on glass or detecting A4 with no paper C368

Nop. No scanner board no lens board from other machine. Same thing.

Good. Here in our laboratory we have already exchanged the complete scanner table. Very simple removal and would discard many doubts. I agree with Emujo2 to be related to CCD. This sensor on the table identifies only length. The width of the original is identified by the CCD due to the illumination and detection of the original in the mirror.

Replacing the complete scanner table eliminates many suspicions and, even with problems, I would already go to MFPB.


I repeat, removal of the table is extremely simple.

[lazymangr]

Re: Original left on glass or detecting A4 with no paper C368

As I said I already replaced scanner board and lens board from other working machine as Konica suggested but it's the same thing. Tomorrow I will contact them again since there is no other option left to try a hard reset of some kind.

[rrrohan]

Re: Original left on glass or detecting A4 with no paper C368

That's right it works if I remove the reed switch because it don't enable the paper size detection. But that's not right. I am now replacing ccd and scanner board to check

yep your on the right track.

i replaced the size detection sensor and that fixed it

[lazymangr]

Re: Original left on glass or detecting A4 with no paper C368

yep your on the right track.

i replaced the size detection sensor and that fixed it

nah I am far from it. All boards that reference to scanning are replaced but no avail

[rrrohan]

Re: Original left on glass or detecting A4 with no paper C368

u said if u unplug sensor it works?

did u try replacing it?

thats what fixed it for me on a C754e

[lazymangr]

Re: Original left on glass or detecting A4 with no paper C368

If I raise the adf on the right side enough that don't actuate the sensor it works but it's messy because it don't start the procedure to read the platen glass if there is paper. It only works as it is supposed to work if I remove the glass and I trigger the 2 sensors for the adf by hand and by magnet or if I turn the glass bed 180 degrees and there is not in pace the plastic fuller glued on glass. It's like reading in offset and catches light from the plastic ruler. Even with glass from other machine does the same thing

[tsbservice]

Re: Original left on glass or detecting A4 with no paper C368

Try Initialize all.

[femaster]

Re: Original left on glass or detecting A4 with no paper C368

I didn't see it mentioned previously, but have you tried adjusting the height of the ADF? If the white platen sheet is too close to the glass, it will sometimes be detected as a piece of paper on the glass. I've run across this before, where the height screw must slowly turned over time and the ADF was eventually sitting too close to the scan glass. Raising the left side height a bit cleared up the issue.

[lazymangr]

Re: Original left on glass or detecting A4 with no paper C368

thank you all for the help and time.
ok after all the procedures above and contacting konica hit a wall, i stumbled upon service mode menu-> machine -> scan area and comparing to other machine was way off. so i entered the values from the other machine and now its fixed. how is possible that setting to change by itself?

[srvctec]

Re: Original left on glass or detecting A4 with no paper C368

thank you all for the help and time.
ok after all the procedures above and contacting konica hit a wall, i stumbled upon service mode menu-> machine -> scan area and comparing to other machine was way off. so i entered the values from the other machine and now its fixed. how is possible that setting to change by itself?

Shouldn't have changed unless a bunch of other stuff also changed, as in a surge or spike possibly causing an issue. I haven't ever seen only one setting so specific be altered by such a thing, though. Those settings should have all been done on setup or at least verified they were correct as part of the setup procedure. Is it possible someone who didn't have a clue what these settings were, changed them all willy-nilly and caused your issue?

[tulintron]

Re: Original left on glass or detecting A4 with no paper C368

I honestly prefer to believe in coincidences. Scan Area does not interfere with original size. It only changes the margins on a millimeter scale. In our laboratory we have several machines with different values.


However, if you managed to win like that, that's what matters.

[lazymangr]

Re: Original left on glass or detecting A4 with no paper C368

Looks like it was way off and was interfering with the ruler attached to the platen glass. Copied numbers from another machine and problem gone. Then I did a fine-tuning from there. Thank you all