dekuda

asked Jan 19, 2007 at 2:58pm
Hp HP LaserJet 4100

HP Laserjet 4100 54.1 error

I have decided to open a new thread for this problem for this model printer.I have a HP laserjet 4100 that is giving me a "54.1" error when I power the unit on. It displays the message remove toner tape in toner cartridge which I have done. I purchased another cartridge,same result. I installed the toner cartridge in another printer and it works fine. If anyone has had this problem on this printer and know s what I need to do to fix this it would be very much appreciated !
Moe,

What happens if you pull off the chip and install the cartridge?

ST
by Stephen on Jan 25, 2007 at 3:32pm Add comment
dekuda did the right thing by starting a new thread, pointing him back to a the 4200 thread he posted in earlier just confuses the issue.

We avoid mixing different models in the same thread as this leads to people reading advice for one model and then trying to apply it to a different model, and while some advice will apply to more that one machine, it doesn't always work.

As to the error message.

Check that the contact springs that connect the toner cartridge to the printer are all in the proper position.

Make sure that the transfer roller is seated fully.

Does it look like the cartridge is going all the way in to it's proper position? If it is not fully seated it might not be making contact with one of the connections.

The service manual just says remove the tape, and does not say how the machine detects the error.

Dekuda, if you figure this out please post the fix, it looks like you were fortunate enough to be the first poster who had this problem on a 4100, <g>.
by Stephen on Jan 20, 2007 at 7:40am Add comment
If you look to either side of where the sealing tape is installed, you'll see 2 small metal pads. These pads don't exist on a 4000 cartridge which is basically the same, but doesn't have the sealing strip message. The 4100 cartridge will install and work in a 4000, but not vice versa. I measured the contacts on a new 4100 cartridge and didn't get any resistance reading. Not having a used 4100, I tried a used 4200 from our office printer. There wasn't any reading on it either. There is a white plastic piece in the printer with a couple of contacts on it. I don't know how the pulled sealing strip is sensed either or how the contacts function. I don't feel like pulling a printer apart to figure it out either as I don't have that much free time to begin with.
Before I posted this, I decided to do a couple of experiments. I stuck some cardboard in the sealing strip slot on our 4200. Printer didn't care. Then I decided to tape over the 2 contacts. Printer still didn't care. At this point, thoroughly confused, I gave up. It's Saturday and my mind is in weekend mode, so I'm not really motivated to pursue it any further.
by moe on Jan 20, 2007 at 12:46pm Add comment
Moe just a hunch, but since the sealing tape is made out of foil, perhaps it shorts those two contacts and that is what tells the printer the tape is still installed.
by dmzcompute on Jan 20, 2007 at 2:55pm Add comment
I just checked the used cartridge in my 4100, the connection between those 2 metal contacts meters as wide open. Same result as Moe got with a new cartridge.
by Stephen on Jan 20, 2007 at 3:20pm Add comment
I have a few contacts in the recharging industry that I can call on Monday. If the issue hasn't been resolved by then, I'll find out exactly how the sealing strip works.
by moe on Jan 20, 2007 at 5:58pm Add comment
Ok gang I was thinking about this last night and have a theory on how this thing may work. If Moe's new cartrdige does in fact have the sealing tape still installed, then the only other place a signal can be sent is from the two metal bearing posts which may activate a switch or short a common wire to send a signal to the dc controller. My theory is based on the assumption that when you insert a toner which still have the sealing tape, the strip which you pull will be on side covering one of the metal post on the toner and therefore may prevent the other side of the toner cartridge from depressing the ball bearing metal piece in and therefore those two metal bearings do not short out and send the signal. Just a theory. As to the posters original problem, if my theory is correct and maybe even if not the method hp uses is based on those two copper posts on the cartrdige making contact with the 2 metal bearings on the left side, so if anything prevents that from happening you get the message. Again I would look at the transfer roller or even look for a broken piece of plastc which does not allow the toner to fully seat on the left side and make the contact.
by dmzcompute on Jan 21, 2007 at 8:02am Add comment
DMZ,

I loosened the assembly with the 2 contacts on my 4100 and tried it...

The printer worked.

Mine is at firmware version 01.027 so it might do things differently.

I'm getting a message non-HP toner detected wether or not the contacts are touching the cartridge, and the cartridge looks like an OEM.

(too much thinkin' going on this weekend, )
by Stephen on Jan 21, 2007 at 8:41am Add comment
I'm wondering how you loosened the assembly. It's spring loaded. If you look at the top front center of the cartridge, you'll see a black rectangular piece of plastic in a small well. That is the cartridge chip that contains all the info like page count. If it is a remanufactured one, some cheap companies don't replace that chip with a cloned version. If you push the Go button, the printer should still print, but you won't get any toner low message.
dmz, I don't think you read my post thoroughly where I tried everything to keep the printer from seeing the cartridge in order to get the sealing strip message. Curiosity has gotten the better of me and now I have to find out how that circuit works. I'll make a couple of calls tomorrow and let you guys know.
by moe on Jan 21, 2007 at 11:00am Add comment
I took off the left side cover and removed the 2 screws that hold the plastic part with the two contacts that touch the contacts on the side of the toner cartridge to the side of the printer.

I then pulled the assembly out far enough that at least one of the contacts definitely was not touching.
by Stephen on Jan 21, 2007 at 12:39pm Add comment
There was a case where early versions of the 4100 firmware reported a 50.4 error as a 54.4 error...

So I think swapping the firmware module with a working 4100 that has firmware that is at level 01.027 or better would be a good idea, if you don't have any with versions that new then swap the firmware with the most recent version you have.
by Stephen on Jan 21, 2007 at 12:45pm Add comment
I just got back to working on this problem.I appreciate all of the responses. I checked those 2 contacts on the left side originally and everything there looks okay. I took the assembly out,ohmed it out to the 2 spring contact that touch the pcb. Checked out okay.ohmed it out with the cartridge in and without it in.Tried with cartridge in and the 2 contacts not making contact,then with one contact making contact,differant combinations,all with the same result "54.1" I also made sure that the cartridge is seating properly,the spring latch on the left locks it in. Looks like it is in there nice and snug. Took the transfer roller out then reinstalled , no help. I have a HP 4000 laserjet right in the same room. Took the cartridge from the 4200 and put in the 4000 laserjet and it works fine. I do not know how this printer detects the toner tape but it seems like those two contacts and that assembly is okay. Maybe the e chip reader is what is at fault here but I do not know. If anybody has found out any more info please let me know. I do not have a 4100 locally that I can swap parts with. I originally shipped out one of the cartridges to another customer in a differant state and he tried the cartridge and it worked fine. All cartridges are HP. Appreciate any help!
by dekuda on Jan 22, 2007 at 2:20pm Add comment
Oh, and I also shorted out the two contacts on the left side with the cartridge installed,still no luck !
by dekuda on Jan 22, 2007 at 2:29pm Add comment
Without parts to swap there's not much you can do.

I have some used firmware modules laying around if you need one we can work something out.

If we're ready to start grasping at straws you could try a cold reset, it won't hurt anything to try.

Cold Reset Procedure:

Power off printer.

Remove the JetDirect if one is installed.

Power on the printer while holding the GO button down.

When Cold Reset appears on the display let go of the button.
by Stephen on Jan 22, 2007 at 3:54pm Add comment
Thanks Stephen, I did try a cold reset and then a nvram init, no help. I am hoping someone knows exactly how this printer reads the cartridge to check the presence of this toner dam tape so I know which direction to go. I quess I could try flashing the firmware but it will probably not take it since the printer will not come ready because of the error.
by dekuda on Jan 22, 2007 at 9:31pm Add comment
In simple terms, let's look at it like this:

HP lasers are made by Canon. Canon likes to use mono toner. The best way to most accurately meter the toner is to use inductive resistance. The purpose of the metal tabs is to measure the inductive resistance from the tab to ground thru a pair of rods that go from left to right thru thr cart. It is a haphazard design, and easily flawed in the manufacturing/remanufacturing process. The toner touching the rod absorbs a large amount of the 5Vdc sent to it, so at the "sensing" ground, it may only get like .04VDC. When the toner level gets lower, it will not absorb as much of the 5VDC, and may allow up to 4.3VDC or so to get thru. If there is no reading at all, it can throw the code, and if it is directly shorted it can as well. This is a very basic, laymen's terms of how this works, but I think you get the idea. The contacts are delicate, even in the machine. Hope this helps. Note: The 4000 does not have these contacts, nor can it actually measure the toner inside, resulting in widely varied readings on teh "Toner Gauge" on the config page. :-)PCRMike
by pcrmike on Jan 23, 2007 at 6:34am Add comment
PCRMike, you are sharp.

I tried to check this on my 4100 by metering across the springs where the side contact assembly connects to the engine board, but I didn't see a voltage drop between the springs.

I'll be more motivated after my second cup of coffee...

ST

My machine says non=HP toner whenever I turn it on, I'm still scrounging around for a good cartridge to see if it's a printer or cartridge problem.
by Stephen on Jan 24, 2007 at 5:15am Add comment
I did see the resistance change across those 2 contact points when I installed the cartridge. I did not check the voltage how ever. When I get back to it I will be checking the voltage. I am in a situation as I am sure many of you guys have come across. Do I shotgun it and start ordering parts and replacing parts (flash,formater,engine pcb) not knowing if those parts will fix it or do I just go to Ebay where I can buy a whole working printer for $200.00 including shipping.(25,000 page use) I have parts for other models like the laserjet 4000,4200 ect... but none for the 4100. So I would have to purchase them. Curiosity has gotten the better of me to try to find the fix for this but because of cost concerns it is unfortunately not my call.
by dekuda on Jan 24, 2007 at 9:16am Add comment
I'd say the engine board is the most likely culprit.

I looked at mine some more, taped some contacts, etc.

All I got out of it was a piece of tape in the toner cartridge... (whoops).

ST
by Stephen on Jan 24, 2007 at 10:33am Add comment
I got some time today to talk to a knowledgable person. When the printer first turns on, it looks at the cartridge chip. If it sees zero page count, then it checks the ac bias through the 2 contacts. If sit doesn't see the voltage, it will give the error message. The front contact is toner out, the back one is toner low. The only time the printer checks for the sealing strip is when it sees a zero page count reading on the chip. If the cartridge has any kind of page count, you should be able to install it in the printer and you won't get the message. That would explain why all the experiments I did trying to force the message didn't work. BTW, putting the cartridge in the 4000 and running some pages won't affect the chip since the 4000 doesn't have any means of writing to it. What you need to do is get a used or empty 4100 toner cartridge and try it. If you still get the message or the page is blank, the the first thing to try would be the controller board.
by moe on Jan 24, 2007 at 2:32pm Add comment
I got some time today to talk to a knowledgable person. When the printer first turns on, it looks at the cartridge chip. If it sees zero page count, then it checks the ac bias through the 2 contacts. If sit doesn't see the voltage, it will give the error message. The front contact is toner out, the back one is toner low. The only time the printer checks for the sealing strip is when it sees a zero page count reading on the chip. If the cartridge has any kind of page count, you should be able to install it in the printer and you won't get the message. That would explain why all the experiments I did trying to force the message didn't work. BTW, putting the cartridge in the 4000 and running some pages won't affect the chip since the 4000 doesn't have any means of writing to it. What you need to do is get a used or empty 4100 toner cartridge and try it. If you still get the message or the page is blank, the the first thing to try would be the controller board.
by moe on Jan 24, 2007 at 2:33pm Add comment
I appreciate everyone's help on this.It is strange because I have 2 new oem cartidges and both do not work. I will have to look for a used or empty cartridge and hopefully try it. I do not have one available at this time but I will be searching.If not,then maybe the engine board as Stephen suggested.
Again,thanks for all your help. When I get it fixed I will post it.
by dekuda on Jan 25, 2007 at 7:29am Add comment
If you can't find an empty cartridge, all you really need is a used chip. I've got a few chips that will read empty, but should remove the sealing tape message. They are stuck on with double sided tape. I can USPS one to you.
by moe on Jan 25, 2007 at 9:37am Add comment
Stephen, that was positively brilliant. I knew there was some reason why I allowed you to stay on the forum. Just went and tested out the procedure. Stuck a brand new OEM with sealing strip into my 4100 test printer. Got the 54.1 error. Removed cartridge and pried off the chip. Powered it on and as expected got the "non HP toner cartridge detected" message. Hit the Go button and it went to ready.
Gold star for you.
by moe on Jan 25, 2007 at 5:09pm Add comment
Well guys, I did what you said and removed the chip from the cartridge and reinstalled it. The printer came up as expected with "non HP cartridge" I hit go and the printer came to ready. So I was happy that I was no longer getting the 54.1 error. But when I tried to print a configuration page the printer gave me a 51.1 error which according to the service manual is a "beam detect error". Turned the printer off and back on. Got to Ready and tried printing again and same error "51.1" So Moe you were right,removing the chip temporarily fixed my 54.1 error but now I am stuck with the 51.1 error. looks like either a engine board or scanner and I am leaning toward the engine board. Is this 51.1 error related to the original 54.1 error? What do guys think?
by dekuda on Jan 26, 2007 at 1:00pm Add comment
Normally I would not think they are related, but on this printer I'm not so sure... (I hope the end user didn't drop it)

Have you tried reseating the cables to the laser/scanner, (both ends).

Does the scanner sound normal when it spins up? (this is not a speed related error, I'm just curious)

You could open the scanner and make sure nothing is loose inside... (never run a laser printer with the scanner open, eye hazard)
by Stephen on Jan 26, 2007 at 2:59pm Add comment
I'd be more inclined to think the end user spilled something into it. They don't always tell you stuff like that. It kind of looks like you're going to need an engine board for the 54.1 error anyway so cross your fingers and hope that it fixes the 51.1 error as well.
by moe on Jan 27, 2007 at 10:33am Add comment
Good luck had the same problem with a 4345 mfp replaced boards checked connections etc as it was under warrenty HP had to put a loan in and take it away for further investigation.So i cannot tell you what repair was to fix the problem.My involvement with the printer ended there.
by Anonymous on Jan 28, 2007 at 5:37am Add comment
Found a picture on hp.com that shows how the grounding spring should be sitting, it's from a 4200, but it looks the same as a 4100:

http://h20000.www2.hp.com
by Stephen on Feb 7, 2007 at 3:05pm Add comment
I had the same problem on a hp4200. to fix the problem i opened the printer and removed the toner cartridge. on the left inside wall where the toner slides along in a groove there is a "L" shaped wire that is spring loaded. This wire had been dislocated and was sticking out of the groove. I forced it back in to place and reinserted the toner cartridge and that fixed the flase toner tape read. hope this helps.
by Anonymous on Feb 11, 2008 at 6:18pm Add comment
Hi.

Just wanted to say "thank-you" to this thread. I was getting the "remove sealing tape" message on my (non-HP -- gasp!) toner cartridge. I pried off the little chip, and after pressing "Go" to bypass the "non-HP toner detected" message, everything seems to work fine.

I presume that the printer's sense of page count will remain active, but the cartridge's won't, so I'll make a point of printing a status page (with today's page count on it) and savign it away to see what life I get.

Again, thanks!
by Anonymous on Apr 16, 2008 at 8:06pm Add comment
Thanks to everyone for this thread, I just bought a non HP toner and was having this problem. I looked at the old cartridge It had no chip at all but worked fine so I just removed it and it works fine. Don't care about the page count.
by unknown on Apr 12, 2010 at 4:28am Add comment
That's how I worked around 54.1 "remove sealing tape"

Cover the chip on new catridge with aluminium foil.
Insert new cartridge.
Panel will say something like "non-hp toner cagtridge detected".
Acknowlege
Print test page

Ok, so far you can print but catridge is now identified as "non-original hp catridge". To resolve this:

Remove new catridge and aluminium foil.
Insert original catridge.
Cold reset printer (hold "go" or "start" while powering on)
print test page
Insert new catridge (without aluminium foil).

Printing with new catridge should work now. Printer even accepts new catridge as original hp catridge

by unknown on May 21, 2011 at 4:11am Add comment
I can't locate this chip. At least I don't think I can.
"If you look at the top front center of the cartridge, you'll see a black rectangular piece of plastic in a small well. That is the cartridge chip that contains all the info like page count."

When I look at the top Front center of the cartridge, what I see is the HP C8061X label. Peeling the label off gets you no where.

At the top Rear(?) center of the cartridge is a plastic "chip" with no visible metal or contacts, that is held in place by a piece of double sided tape.
Is that the chip?
by dunnbob on Jan 23, 2012 at 8:44am Add comment
Front would be the leading edge of the cartridge when you insert it. It is pointing at the rear of the printer, hence the confusion. I think what you are referring to is the chip in question. Rectangular with a corner missing.
by moe on Jan 23, 2012 at 10:03am Add comment
Front would be the leading edge of the cartridge when you insert it. It is pointing at the rear of the printer, hence the confusion. I think what you are referring to is the chip in question. Rectangular with a corner missing.
by moe on Jan 23, 2012 at 10:04am Add comment
Hey all:
The company I work for bought a bunch of use printers, a HP 4100n being one of them. I plug it in, it powers up & I receive a Toner Low message. Unfortunately I do not have a swap out toner & am really just trying to get this thing to print a page to see if it works correctly before springing for a new toner. I tried removing the chip on the toner we do have (thanks to who ever posted that here) but when I go to print a test page it reverts back to "Ready" status and does not print? Any & all advice welcome.
by unknown on Mar 1, 2012 at 11:12am Add comment
Did you try printing from the control panel? Rt. side of Menu once. Rt. side of Item twice. Select.
by moe on Mar 1, 2012 at 11:29am Add comment
I get this message even after the tape has been removed from cartridge.
Have tried 3 differnt new ones all hp, you reinstall the old one and code cleaars.
by servtech on Apr 2, 2013 at 8:19am Add comment
Maybe this will help. http://h20000.www2.hp.com - moe