CLC 1120 not detecting original size on platen glass DF is ok but DF jams won't clear

[delosangeles]

Hello everyone

Our clients machine does not detect the original size or direction when placed on the platen glass, if feed in the DF it does detect the original correctly. I looked inside the optics cavity but see no sensor there. How does it see the paper?

Also if a paper jams in the DF the machine prompts the user to lift the DF and remove original from glass which the user does but the machine does not actknowldge the act so the machine must be turned off and on to clear the paper jam condition, I'm guessing it's related to the formentioned problem. I looked for a home position switch for the DF as that is how most Ricoh machines work but I guess that does not apply to the Canon line.

Thanks in advance for any input or advice

[charm5496]

This unit will not recognize paper on the glass with a DF attached. Sounds like you need to clean the DF and possibly do a sensor INIT. You may want to get a manual on this one.

[delosangeles]

Paper Jams

How about the machine not clearing the paper jam condition when they occur in when using the DF? The machine request to clear the original that is on the platen glass. How is the machine aware that a original is there? Or does the machine use a different method to confirm the original has been cleared from the platen glass? For example the Ricoh line of machines employ a switch that detects that the DF has been lifted up and by assumption that the original has been removed. Thanks for your input.

This unit will not recognize paper on the glass with a DF attached. Sounds like you need to clean the DF and possibly do a sensor INIT. You may want to get a manual on this one.

[teckat]

How about the machine not clearing the paper jam condition when they occur in when using the DF? The machine request to clear the original that is on the platen glass. How is the machine aware that a original is there? Or does the machine use a different method to confirm the original has been cleared from the platen glass? For example the Ricoh line of machines employ a switch that detects that the DF has been lifted up and by assumption that the original has been removed. Thanks for your input.

U need to clean RDF E3 sensors/ & Clean & or replace the _2 P/U rolls & 9 Separation belts/ 12 FEED Rollers

then do a original paper detection adjustment

[delosangeles]

So the original is detected on the platen glass by the E3 sensors? I'm still curious how the machine detects the paper size when the original is placed on the platen glass. Thanks for keying in. You guys are great.

U need to clean RDF E3 sensors/ & Clean & or replace the _2 P/U rolls & 9 Separation belts/ 12 FEED Rollers

then do a original paper detection adjustment

[charm5496]

again the machine can not recognize any original on the glass with a DADF attached. The only way you can do this is to scan the original with the DADF open and then close it after the initail scan.
This machine uses a white recognition system to see the original and with the white doc feed belt it can not tell where the original stops and starts.

[delosangeles]

I see

I see, so the client must manually select the paper tray to match the original when copying on the platen glass. Thanks, you guys kick butt.

again the machine can not recognize any original on the glass with a DADF attached. The only way you can do this is to scan the original with the DADF open and then close it after the initail scan.
This machine uses a white recognition system to see the original and with the white doc feed belt it can not tell where the original stops and starts.

[nmfaxman]

Try lifting the lid all the way up when they put a paper on the glass.
Or the DF lift sensor is bad.

[delosangeles]

I did look...

I did try lifting the DF all the way vertical. I could not see a lift sensor where is it located? that's what I thought the machine used to clear the jam condition for the DF. Thanks for the help.

Try lifting the lid all the way up when they put a paper on the glass.
Or the DF lift sensor is bad.

[charm5496]

Without busting the manual for this beast out I am pretty sure you are correct that there is not a sensor for the DADF being open or closed. But choosing the paper size will do the trick as well.

[delosangeles]

So how does the machine confirm that the original has been removed from the platen glass? I don't have the manual, parts or service to verify my thought. Thanks for the help.

Without busting the manual for this beast out I am pretty sure you are correct that there is not a sensor for the DADF being open or closed. But choosing the paper size will do the trick as well.

[charm5496]

There is probably a switch on the back side of the DADF that opens and closes with the DADF. I would have to dig out the manual to verify location and function. A DADF on this machine was just a bad idea by Canon, but that is neither here nor there.

[delosangeles]

I would be grateful if you could look into your archive of manuals to confirm that. Thanks for the help.

There is probably a switch on the back side of the DADF that opens and closes with the DADF. I would have to dig out the manual to verify location and function. A DADF on this machine was just a bad idea by Canon, but that is neither here nor there.