teclogics

asked Dec 5, 2005 at 4:40pm
Hp HP LaserJet 8100N

HP 8100N input device condition 11.01

Hi. I sometimes get this error with my LJ 8100N with 2000-sheet tray and multibin mailbox.

In my case it's linked with the 2000-sheet tray (tray4 with A4) that causes paper jams. When preforming 3 different paper path tests I have noticed that the paper size of tray4 changes to A4, A3 and unknown (mostly A3).

I geuss it's the sensor PCA because the big tray is not damaged. Any advice or documents related to this error?

Thanks in advance, Steven
Yes. Make sure the piece which moves when you change the paper is sitting firm in the base. That piece is what activates the fingers at the back of the tray which make contact with the switches in the back of the 2000 sheet feeder. I have seen many cases where the piece is not firmly seated and all sorts of crazy things start to happen with paper size. It usually happens right after paper is added to the tray. It is not that the tray is damaged, but the design of that piece leaves a little to be desired. Best way is to empty the tray and then remove that piece and move it to a different size setting and watch the fingers move. Move it to the size you use and note how the fingers are positioned. Now load with paper and make sure the fingers are in the same position.
by dmzcompute on Dec 5, 2005 at 4:52pm Add comment
Thanks! I have checked the pieces and the position of the fingers with another HP8100. All seemed to be in place correctly. I will try your tips tommorrow. To be continued..

Did those 'crazy things' also happened with a defective sensor PCA?
by teclogics on Dec 5, 2005 at 5:20pm Add comment
I do not know what sensor you are referring, however, very rarely does a sensor go bad. I can count on one hand the number of bad sensors I have seen over the years and I have serviced a ton of printers. You also need to run a configuration page and make sure the paper in the 2000 sheet feeder is the same size as that specified by the software. When you run the configuration page if the size detected is not the same as what is in the tray, then you have an issue with the fingers or the switches in the back. The frame which holds the paper is usually the key.
by dmzcompute on Dec 5, 2005 at 6:51pm Add comment
Nothing wrong with the tray or fingers..

Found out the error is related to error 65.11.01

Description:
The detected tray is not consistent with the paper size specified by the Paper Handling Controller.
1. Make sure the size, source, and type of paper selected from
the software configuration is correct.
2. Pull out Tray 4 to verify that the size and type of paper loaded matches to the size and type specified in the software configuration.

If this don't work, it's got to be the sensor PCA (partn°: RG5-2168-000CN)
- Anonymous
Nothing wrong with the tray or fingers..

Found out the error is related to error 65.11.01

Description:
The detected tray is not consistent with the paper size specified by the Paper Handling Controller.
1. Make sure the size, source, and type of paper selected from the software configuration is correct.
2. Pull out Tray 4 to verify that the size and type of paper loaded matches to the size and type specified in the software configuration.

If this don't work, it's got to be the sensor PCA (partn°: RG5-2168-000CN)
- teclogics
My question to you is did you run a configuration page and if so what size does the printer say is in tray 4. If that size does not match what is actually in the tray, then you do have an issue with the fingers or the swtiches in the back. If the size matches then what happens if you run a job from Wordpad asking to print on the size paper in the tray and from that tray. The reason for my question is in your first post you indicate that the size changed during 3 paper path tests. Sensors in the paper path do not change the paper size, only the fingers and the switches. The sensors only reley to the dc controller when the paper has reached and when it clears the sensor. If it does not reach or does not clear the sensor in the alloted time, then an error condition is reported.
by dmzcompute on Dec 6, 2005 at 6:32pm Add comment
1. The sensor PCA is the paper size sensor (the switches with PC board). Not a sensor in the paper path.

2. The paper size for the 2000-sheet tray is not mentioned on the configuration page, only for tray 1, 2 and 3. Only with the paper path test I can view the paper size. Or are there other ways?

3. Driver Settings are also ok. Paper size en type are assigned.

This problem causes also the following errors:
13.11.11 External input device paper jam
13.1.42 Paper feed 1. Paper late jam.

SOLUTION: I swapped the sensor PCA from another 2000-sheet tray and the problem followed the defective sensor. So in my case it was the sensor PCA with partnumber RG5-2168-000CN. - teclogics
I think we have a terminolgy issue. If you are referring to the seitches in the back they are just that switches even though HP calls it a paper size sensor pca assembly. Sensors to all us old time techs are usually light emitting diodes which either have the light on or broken by a sensor flag. That board actually has little switches which are activated by the fingers pressing in the metal plates in front of them. In any case it seems like you discovered the issue which was one of the items I have had you looking at since I first answered this thread.
by dmzcompute on Dec 7, 2005 at 12:43pm Add comment
Thanks for your help! I'll remember the switch and sensor issue for in the future :)

For the record (Qoute from the HP forum):
"The problem was easy to find with an ohmmeter. The defective switches had 40 ohms when closed instead of zero ohms."
- teclogics
First things first, I don't think I saw anyone say reseat the paper guides for tray 4. There are 3 of them, remove & replace each one. Second, make sure that when you open tray 4 the lift assembly drops to the bottom slowly. If it doesn't or if it wasn't at the top, there is likely a motor error but that would cause more regular problems than you are experiencing.

Refer to the HP document which may be of some assistance:
http://h20000.www2.hp.com
by unknown on Dec 14, 2005 at 8:15pm Add comment
We are getting this message too with an HP8100N that we just received. We have replaced 2000-sheet tray twice and the entire printer itself once. Still we receive this message ONLY when the machine is coming out of Powersave mode. Our service provider says it is a power issue (ours), but the outlet that the (two) plugs from the printer are plugged into is supplied power from a 30kva UPS. We have no other power issues with any other HP devices, but none have the 2000-sheet tray either (we have other HP8100N's)

Could this be a power issue? Again, it is ONLY happening when the printer is coming out of powersave mode.
by unknown on Jan 30, 2008 at 7:38am Add comment
Never ever connect a printer to a ups. Printer should be connected directly to the wall socket and be on its own leg.
by dmzcompute on Jan 30, 2008 at 2:14pm Add comment