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 | Laserjet 2100 Ghosting. by laidlow (9/27/05 6:28 PM) reply | + / - | Ok so I service a HP Laserjet 2100 Printer the other day because the client said it was "ghosting" or repeating the printed text further down the page. First thing I thought it might be the cartridge, changed it and no change. So I thought it could be the media, changed it, still no change. Last resort is the fuser, put a new fuser in yesterday and I've still had no luck getting this to print out cleanly. Does anyone have any ideas what this could be? I am the end of my rope here.
Cheers,
Dan
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 | Re: Laserjet 2100 Ghosting. by dmzcompute  (9/27/05 6:47 PM) reply | + / - | First you need to narrow down where the ghosting is coming from. Keep in mind if they are using rebuilt toners, they would be very suspect. That said, lets do a test. Put a sheet of paper on the manual feeder and press the big button for a self test. When the paper is almost all the way in open the toner door to stop the printing. Remove the toner cartridge and look at the image on the paper. If the defect is there it is the toner cartridge. If the defect is not there it is the fuser. It is that simple. As to the fuser since you replaced it I doubt that will be the issue unless there is a temperature issue which allows some of the toner to adhere to the pressure roller. You could also measure the distance between the start of the image and the start of the ghost image. My guess is the toner cartridge.
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| Re: Re: Laserjet 2100 Ghosting. by laidlow (9/27/05 6:52 PM) reply | + / - | yeah thing is, i've replaced the cartridge 3 times... They are reman cartridges but they are made by our company and I know for a fact they are ok....
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| Re: Laserjet 2100 Ghosting. by dmzcompute (9/27/05 7:47 PM) reply | +1 + / - | If the ghosting is occuring before the paper makes it to the fuser it HAS to be the toner cartridge. No other place the image can come from. What you are having is a failure of the drum wiper blade and all the excess toner which did not transfer the first pass is not being removed, hence the ghost image. If you guys are remanufacturing these perhaps your quality control needs to be checked.
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| Re: Laserjet 2100 Ghosting. by moe (9/27/05 9:04 PM) reply | + / - | I don't think I've ever seen a fixing film cause ghosting. I've seen too many remanufactured ones cause ghosting. I'd keep trying cartridges till I found one that worked. They are bound to get one right sooner or later.
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| Re: Laserjet 2100 Ghosting. by Phil S (9/28/05 5:24 AM) reply | + / - | laidlow,
I also would suspect the toner cartridges. The C4096A's have VERY weak PCR's in them which will cause your ghosting or double imaging. The ghosting was also VERY common with brand new OEM cartridges for a time, due to the PCR's. (The OEM changed the way they (pcr)were made in this model)
Just a side note, ensure this the 2100 & not the 2200 series; The 2200 series are a bit faster, & when they originally were released, there were many aftermarket toners that did not work well in them, yet worked perfectly in the 2100 series. Duplexing can also have a big role in this issue.
Have you done the half test that DMZ recommended? That will tell you most evrything you need to know.
Regards,
Phil S
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| Re: Laserjet 2100 Ghosting. by laidlow (9/28/05 10:44 PM) reply | + / - | ok so I've done the half test as DMZ said, and there wasn't any ghost image from the cartridge. It's really frustrating me though cos I like the rest of you guys suspect the cartridges myself. If I hadnt repeatedly tried 2 different fuser's I'd be tempted to think it was that but there's just no way the new fuser going to do the same thing....
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| Re: Laserjet 2100 Ghosting. by moe (9/28/05 11:23 PM) reply | + / - | A couple things come to mind. The client wouldn't be using preprinted letterhead by any chance? The other thing is maybe the aftermarket toner isn't fusing properly and some of it is remaining on the film and transferring later. The only real test would be to try an OEM toner cartridge in the printer. I've seen remanufactured cartridges cause a whole variety of ills. I've seen where they worked perfectly in our test bed, yet in the client's printer it would be all messed up. Bring it back and retest it, and it was perfect.
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| Re: Laserjet 2100 Ghosting. by laidlow (9/28/05 11:28 PM) reply | + / - | yeah i suspected it could be the media also, but i've tried 2 X letterhead, thick card, and colored paper and it all yields the same result..... starting to think the only thing left is to try an OEM.... dont really like opening them tho cos then I cant sell em, ah well...
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| Re: Laserjet 2100 Ghosting. by dmzcompute (9/29/05 5:47 AM) reply | + / - | I think you have missunderstood Moe. What he is saying is if the customer is using preprinted letterhead paper in the printer. If so sometimes the print from the letterhead will come off on the fuser and reappear further down the page. There is no setting if the ink from the letterhead paper comes off. You just need to find a better letterhead supplier.
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 | Re: Laserjet 2100 Ghosting. by pcrmike (9/29/05 3:57 PM) reply | + / - | Just to reinforce an earlier poster, yes, there were a number of bad PCR's that cause it, including some aftermarket ones too. I recharge for a living, and can tell you don't skimp in this area. I am called pcrmike for a reason. I recommend that if your company is building these, use a SCC or Densi PCR, Densi toner, Densi or SCC mag, and a Hanp or AEG drum. This should eliminate the problem. Oh, yeah, one more thing, in the PCR's use the aftermarket (SCC or Densi) hard, not soft. This aids in durability. The soft is a touch better in the graphics area, but are more prone to failure. I torture test these, because I build 10K yield 2100 toners. I have learned what works and what jerks. :-) PCRMike
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| Re: Laserjet 2100 Ghosting. by laidlow (9/29/05 6:23 PM) reply | + / - | nah i understood dmz, the print which is ghosting isnt the letterhead print it's what I'm actually printing from windoze....
cheers for all the help guys you've been great.
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| Re: Laserjet 2100 Ghosting. by laidlow (9/29/05 6:34 PM) reply | + / - | actually pcrmike, I dont have access to new pcr's at the moment, if I cleaned up and OEM 4100 PCR do you think I'd have a better chance???? from what i remember they seem to be one of the most durable pcr's around....
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| Re: Laserjet 2100 Ghosting. by pcrmike (9/29/05 6:40 PM) reply | + / - | Actually, no. The 4100 hard will be better, but the problem is a weak charge coming from the PCR. In a toner cartridge such as this one, it is actually the PCR's job to "erase" or clean the charge from the drum. It works in somewhat opposite direction of what the name implies. The best way to eliminate it is to use a new one. I tells ya what. I will send you a toner to try, one of my super high yield ones, and if it doesn't fix the problem, send it back. If it does, you can just send a check for $69.00. Not soliciting your business, but I hate to see a guy have to go OEM when there is a better choice. :-) PCRMike
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| Re: Laserjet 2100 Ghosting. by laidlow (9/29/05 6:48 PM) reply | + / - | ha cheers for the offer, but i'm actually just waiting on some new pcr's so i'll c how they go when they arrive....
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| Re: Laserjet 2100 Ghosting. by pcrmike (9/29/05 6:54 PM) reply | + / - | Cool, man, let us know. What brand drum are you using? Sometimes the Fuji drums run a little hot on the charge. :-) PCRMike
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| Re: Re: Laserjet 2100 Ghosting. by tsim1 (11/2/07 3:33 PM) reply | + / - | pcrmike,
I am having the exact same problem with ghosting.There is a repeat dark band around 30 mm wide, across the page at around 38 mm repeat interval , which indicates the PCR.There is also a ghost image at around 90 t0 95 mm which indicates Photosensitive drum.This is also a hp2100 with a rebuilt cartridge.Does your offer to try one of your hi-yield cartridges apply? Do you accept American Express?If so,we could have a deal if your cartridge fixes the problem.
Reply to:
tsim1@charter.net
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| Re: Laserjet 2100 Ghosting. by tsim1 (11/4/07 4:26 PM) reply | + / - | Moe,
I saw where you had sent me an e-mail, but when it was transferred from my Mail Washer program , it got dropped.
Please resend your reply.Thanks
tsim1@charter.net
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| Re: Laserjet 2100 Ghosting. by SpyderCanopus (12/5/07 11:10 AM) reply | + / - | What if just Magenta and Black are ghosting and the others are not? Would that indicate the catridges? Maybe magenta and black fuse at a higher temperature than yellow and cyan so the fuser needs to be replaced for that reason?
The strange thing is we're using the OEM cartridges from HP. The model is HP Laserjet 2600n. Thank you for your help!
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| Re: Re: Laserjet 2100 Ghosting. by moe (12/5/07 11:25 AM) reply | + / - | Perhaps you didn't notice, but this thread deals with 2100 printers, not 2600. You should start a new thread if you want to be helped. I'll delete your post after awhile to minimize confusion.
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| Re: Laserjet 2100 Ghosting. by SpyderCanopus (12/5/07 11:27 AM) reply | + / - | But this deals with the same issue. Maybe the thread subject should be changed to "Ghosting on laserjets."
Or instead of deleting my post you could move it... -_-
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 | Re: Laserjet 2100 Ghosting. by moe (12/5/07 11:28 AM) reply | + / - | Never argue with the Forum Moderator!
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| Re: Re: Laserjet 2100 Ghosting. by Anonymous (3/4/08 2:26 PM) reply | + / - | PcrMike
What is the current price on your super-high capacity toner cartridge for 2100?
Please e-mail me with details.
thanks,
CopyLeft(L)
tsim1@charter.net
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