Question about Xerox Phaser 1235N Laser Printer

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Grey haze on all the printouts

Hello there, I would be really grateful if someone could suggest what might be wrong. We have changed the image drums and I have just purchased a new black toner and managed to buy a fuser since a friend suggested on his printer (different make) that was the solution. What do you think? A big thanks!

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SOURCE: Xerox Phaser 6250

How Brave is Jan?

Doubt it be the fuser(100 000life), "just magenta dots".... fuser would be "all smudged" or "black marks" , "the print rubs off" , "paper is creasing or jamming"

Can prove it by stopping a print (open door) when paper is1/2 way threw machine, you need to stop it before it goes threw the hot bit, so you can tell if the hot bit (fuser) puts the marks on the paper.

Transfer roller one would expect to effect whole print Smudged/Faint,uneven density

It will be the imaging unit ( 30 000 pagelife Ouch$ ) or possible leaking toner (if aftermarket)

Remove imaging unit and inspect film you should find image of lines, dots are usually chips or sticky stuff on drum surface, carefull no oily human fingers on surface please.

When stopping machine mid print and perfecting your timing, pull out the imaging unit and look at replica of your print notice if marked and where.

Hope this helps

Posted on Nov 19, 2007

  • 2072 Answers

SOURCE: phaser 6250 black toner is super light,/?St=842,E=0000000000019251353,K=6024,Sxi=13,Case=obj(19377)

Click on Knowledge base from this site , then in the search box enter poor black quality. Look under black is faded or missing

Posted on Apr 08, 2008

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SOURCE: Xerox Phaser 7750DN FUSER JAM

Are you getting a specific code? 10-XXX ?? That would help narrow it down.

Posted on May 06, 2008

  • 1 Answer

SOURCE: Xerox 6250dp

I had this problem when I used a generic toner. I installed a xerox cyan toner, then printed many sheets of a large blue rectangle. After about 15 pages the blue started to spread into the shape, after 30 pages the blue was back. Printing a lot of blue was necessary to get the new toner thru the system.

Posted on Feb 27, 2009

  • 159 Answers

SOURCE: Xerox Phaser 6360 Black Toner prints Light Grey

I have had to repair a few of these. Take off the sides and back of the 6360. You'll see the hoses that feed into the laser. The black one becomes unplugged from the laser. All you have to do is plug it back in. The next step can be kinda messy. Take out the black toner cartridge, and spin the motor backwards. You'll know you're going the right way because it won't turn the other way. Cycle the gear where the toner sits for about 2 revolutions. Reassemble and you should be good to go!

This thing took me 6 days to figure out the first time. Haha!

Please vote on my solution! Thanks!

Posted on Oct 26, 2009

  • 3 Answers

SOURCE: the black print jobs have a shadow about 3 inches down the page

I had replaced the fuser - no improvement. I removed the fuser, imaging unit & transfer roller. CAREFULLY using a vacuum cleaner I cleaned all units and the internals of the printer, rotating the roller on the imaging unit to clean all parts. (Warning Place Imaging unit on paper as toner escapes) After a few test prints the page cleared and duplicate ghosting cleared.

Posted on May 08, 2010

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After changing the ink catridges and resetting the drum fuse lately (note: it is known that the fuse will be blown off after certain number of prints but otherwise is in good condition), my Epson Acculaser...

The repeating image is a ghost image, and here is described what it can be. Probably if you solve this, you also solve the red-dot problem. If possible, I would suggest to replace the wiper blade.
Repeating images on laser printerThis likely means a faint ghost of the main printout at a distance equal to the circumference of one of the rollers or photosensitive drum.

Depending on where the problem originates, this could be a bad wiper (cleaning) blade, faulty corona, or incomplete fusing.

  • If the distance between successive images is equal to the circumference of the photosensitive drum, it is a wiper blade, erase lamp, or corona problem.A residual latent image or residual toner is sticking to the drum and not being properly cleared.

  • If the distance between successive images is equal to the circumference of one of the fuser rollers, then the fusing may not be complete due to damaged rollers or an incorrect temperature setting.

It is easy to determine where the problem is located: Interrupt a printout in mid-stride (where part of the paper is between the toner/developer and fuser. If the un-fused image has ghosting, it is a fault in the area of the drum

Jul 08, 2011 | Printers & Copiers

1 Answer

Dell 1815dn laser printer prints completely black pages

1. Charge – Print Quality (PQ) -- The charge roller evenly distributes a negative charge on the photoconductor (PC) drum. This evenly distributed charge acts as the film that is discharged (exposed) by the laser to create the latent image.
a. Print Quality effected: Faint, Entire Black background, Grey Fog/Haze
b. Parts Involved:
i. Drum -- A drum cartridge is coated with a photoconductive material that allows electricity to pass when exposed to light. As an example of why this can be the failure, if you leave a drum out in light long enough, you will get dark backgrounds or just black pages. However, drums do wear out over time too; specifically the photo material the drum is coated with. As this degrades, more of the positive electricity on the inside of the drum gets through and grabs toner, as if the laser wrote to every square inch of it. A damaged or defective PC drum can cause black streaks/lines, voids, speckles and various other print quality problems.
ii. Charge Roller Also known as the BCR or Bias Charge Roll. The charge roller pulls double duty. It energizes the outside of the drum with negative energy and as a result it cleans any previous latent images. If the charge roller were failing to energize either due to the HVPS or the charge roller itself, it wouldn’t clean any previous unused toner deposits from the last revolution would start to accumulate and appear on paper more and more causing haze. A missing charge roller causes completely black pages.

iii. HVPS – High Voltage Power Supply -- Responsible for charging components such as the inside of the drum, the charge roller, and transfer roller. If the HVPS does not give enough to the charge roller it can fail in erasing the drum, causing entirely Black pages to be printed.

Apr 16, 2009 | Dell 1815dn All-In-One Laser Printer

1 Answer

Problem with phaser

Phaser 2135 Printer: Resolving dirty looking background or gray haze

Description: Tiny speckles of toner scattered all over the page, even in areas of the page that should be blank.
  1. Make sure the media being used is supported by the Phaser 2135 printer.
  2. Inspect imaging drums for any signs of leakage or excess toner that could be falling onto the print as it travels though the printer. Any leaking imaging drums should be replaced.
  3. Verify environmental conditions. See article Dealing with humidity, humidifiers. If the environmental conditions are not within the specified range, the printer should be moved before trying to troubleshoot the cause to the background toner.
  4. Determine if any of the imaging drums were exposed to light for an extended period of time (more than 10 minutes). If so, then Replace the imaging drum. (Xerox is not responsible for any imaging drums that have been damaged by over exposure to light.)
Additional Recommendations:
Background toner may increase, if printing occurs at temperatures towards the higher end of the specified operating temperature range. For this reason, it is recommended that the printer be moved to another area if at all possible.
In addition, very smooth media types such as glossy; allow toner to more easily scatter about the page prior to becoming fused. Try using a less smooth media if at all possible.

Feb 08, 2008 | Xerox Phaser 2135N Laser Printer

1 Answer

Dark Printouts

try adjusting to light is there any change? what about photo mode?
try this site for the drum

Nov 29, 2007 | Canon ImageRUNNER 330s Copier

1 Answer

Canon 330s Copier with Dark printouts

How dark is it??

canon is sensitive to dust,
turn off machicne take off top copy glass move scanning glass and wipe with a clean towel.
try adjusting the dark and light does it change? if it comes out better on light then the drum is the problem. ( getting old)

Nov 29, 2007 | Canon imageRUNNER 400S Copier

1 Answer

Prints dark black instead of grey tones

your drum is going bad. or your light or dark adjustment is set too dark ( it should be in the somewhat in the middle).

change drum

Nov 06, 2007 | Sharp AR-5316 Advanced Digital Imager...

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