Original left on glass or detecting A4 with no paper C368

[lazymangr]

Hello everyone! i have a c368 with the original left on glass when i lower the adf. what i have done so far

the machine has only 1 original sensor for a3 in the right side of the platen glass
firmware update to the latest as today.
downgrading firmware to previus version
cleaned 3-4 times glass and mirrors,
replaced slit glass, main platen glass, reed magnetic switch, and adf from other machine that it works
uninstall totally the adf
done non image area and proceeed to the whole adf adjustment as it was first time

the only way that it doesnt detect paper (a4) is when i trigger the swith in the back right and the reed switch with a magnet without adf on
but without platen glass installed.

is there any other option to do?

[patrickjlc]

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

Had it before, completely clean the platen glass, any scratch or dirt will trogger the size sensors. Remove the plastic on the side, the 2 metal clips, and clean the glass on both sides.

Sent from my motorola one 5G UW using Tapatalk

[patrickjlc]

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

Hello everyone! i have a c368 with the original left on glass when i lower the adf. what i have done so far

the machine has only 1 original sensor for a3 in the right side of the platen glass
firmware update to the latest as today.
downgrading firmware to previus version
cleaned 3-4 times glass and mirrors,
replaced slit glass, main platen glass, reed magnetic switch, and adf from other machine that it works
uninstall totally the adf
done non image area and proceeed to the whole adf adjustment as it was first time

the only way that it doesnt detect paper (a4) is when i trigger the swith in the back right and the reed switch with a magnet without adf on
but without platen glass installed.

is there any other option to do?

Can you use the adf or it show the same original left on glass message?

Sent from my motorola one 5G UW using Tapatalk

[lazymangr]

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

I used 2 different adfs platen glass and slit glass from other working c258 machines to check. I done all the sane procedures. Now I am in the insane spectrum

[emujo2]

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

paper size detection is done by the length sensor and the CCD for width.. You may need to replace the CCD..E

[tech51]

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

Can also be caused by the df sitting to high at the rear.

The black actuator at the rear operates too late fooling the machine into thinking the df is a piece of paper.

The fact that it works when you manually operate the switches makes me think this may be the problem.

Try adjusting it a bit lower using the adjusting screws.

[emujo2]

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

This can be ruled in or out by simply measuring the height at which the paper size is detected. PS 202 can be checked in service mode. It should actuate at 14.5 degrees, (20 with a platen cover) E

[Synthohol]

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

If it hasn't been mentioned before, a dirty white sheet on adf will make it thing there is paper.

[tsbservice]

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

If it hasn't been mentioned before, a dirty white sheet on adf will make it thing there is paper.

He swapped 2 ADFs...he did almost everything. Interesting when problem arised. It's not brand new model now. What's condition of the machine in question? Where it's?

[tsbservice]

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

Try to play with Original Size Detection - table 1 or table 2.

[lazymangr]

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

It's a leasing return machine with low meter. Tried table 1 and 2. But table 2 is for machines with 2 sensors on the right. The only way that it works as supposed is with the platen glass removed. Even tried another glass from other same type machine and it still not working. A glass that works on the other machine. The only thing I see is the problem is with software of some kind or ccd. Is there any softswitch that I can check? Even Konica that I have contacted have no idea except the "clean everything" answer

[Phil B.]

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

It's a leasing return machine with low meter. Tried table 1 and 2. But table 2 is for machines with 2 sensors on the right. The only way that it works as supposed is with the platen glass removed. Even tried another glass from other same type machine and it still not working. A glass that works on the other machine. The only thing I see is the problem is with software of some kind or ccd. Is there any softswitch that I can check? Even Konica that I have contacted have no idea except the "clean everything" answer

something that hasn't been touched on...

is firmware been upgraded to the latest version? does it have additional separate scanner firmware?

[rrrohan]

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

ive had this on a 4 series

if u only use ADF your fine but the moment anyone uses the glass until you power cycle it thinks something is on the glass

if u unplug the sensor under glass i bet it will work. it will no longer detect A3 though

[emujo2]

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

Size detection on the glass has nothing to do with the ADF other that you are lowering it down to start the detection process..You really need to check your size detection sensors, and angle sensor in service mode. If these function correctly then it's probably the CCD (reads width)..You can't test this..You may also want to ensure the machine is set to the correct marketing area just to rule out something stupid causing this..Bad CCD's were common on the e series, less so on the 8s..I think there used to be a service mode test you could run to check the gain and clamp..Might be worth checking to see if these come back NG. E

[lazymangr]

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