On Mon, 9 Apr 2018 10:37:13 -0700, "David Farber"
wrote:
This problem had been happening intermittently. Now it's becoming more
frequent and annoying. A sample is he
http://webpages.charter.net/mrfixite...int-sample.jpg
Along with the vertical streak of light type that runs the entire length of
the page near the left margin, that same streak has a rough texture to it
when your run your finger over it. The rest of the paper feels normal. Any
ideas what could be causing this? Would cleaning the laser scanner unit be
the next logical step as explained
here?http://www.fortwayneprinterrepair.co...jet-4000-4050/
Thanks for your reply.
The fuser roller or film has a layer of caked on and possibly burned
in toner imbedded in it. It should be visible if you remove the fuser
assembly. The printer looks like it's printing normally, but the
toner is not sticking to the paper and is getting sprinkled all over
the affected area. It also appears that you have the same problem on
the other edge of the page. My guess is that you dumped some toner on
the page from the toner cartridge.
What to do about it:
1. Remove everything you can from the printer. Paper tray, toner
cart, fuser roller, etc. Find an air compressor that doesn't spray
water and blow out the printer. My guess(tm) is that it's quite dirty
in there. Try not to get the nozzle too close to anything fragile or
you'll break things.
2. Inspect the fuser roller. It should be a consistent color across
its length and not have any caked on toner at the ends. If it does,
find a PLASTIC scraper and carefully scrape off the melted plastic
toner. It will not stock to the drum and should fall off easily.
Also, remove any melted toner stuck to the rubber rollers. You may
need to turn the rollers by hand. Blow out any remaining debris.
3. If cleaning the fuser doesn't fix the problem, or the fuser roller
looks burned at the ends, you can either replace just the fuser film
(or sleeve), or get a replacement or exchange fuser assembly.
https://www.ebay.com/sch/i.html?_nkw=hp+4000+fuser+assembly
https://www.ebay.com/sch/i.html?_nkw=hp+4000+fuser+sleeve
4. If the amount of dumped toner is substantial, it's probably also
imbedded in the rubber feed rollers. They can be cleaned, but with
such an old printer, methinks a maintenance kit with separation pads
would be best:
http://www.printerworks.com/Printers/MaintenanceKits/MK_4000MKA.html
https://www.ebay.com/itm/151250586702
https://www.ebay.com/itm/282891878887
I some HP 4000/4050 parts in stock if you don't mind ancient
inventory. Email for details.
--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060
http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558