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Canon ir1750 copies with gray background despite replacing drum and blade

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  • Canon Master
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Printout are defective too?

Posted on Aug 21, 2019

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Posted on Jan 02, 2017

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checkitright
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SOURCE: Copies and outgoing fax quality

your machine most likely has toner spills in it.
if you send faxes face side down follow these instructions ;
1- take out toner
2- look for thin glass strip on bottom inside the machine
3-wipe clean

if you make copies side up then do the same except look for glass strip on the upper side of machine

Posted on Nov 27, 2007

Cogz
  • 1326 Answers

SOURCE: Copies have gray background.

Have you had the optics cleaned resently? If not Iwould start with that and make sure you have the copier unpluged and don't forget to clean the two mirrors under the Black Box/cover. It could also,mean that you need a new OPC drum and blade.. It depends on how maiy copies are on the copier and drum...

Posted on Sep 10, 2008

  • 168 Answers

SOURCE: replace drum cleaning blade

take the toner hopper off take dev unit out lower handle on umber one unit remove screw in drum pin remove primary charge assy remove screw lower right of drum frame remove screw upper left frame un plug connectors unit slides out

Posted on Dec 08, 2008

  • 137 Answers

SOURCE: My copies have dirty gray

remove drum assy. and remove toner unit off drum then blow out the drum only. This should clear problem.

Posted on Aug 13, 2010

  • 904 Answers

SOURCE: functional problem sc 390 on ricoh photocopier,

SC 390 on an Aficio 1018 will most likely be a bad TD (toner density) sensor, if you've already replaced the drum and developer. (One thing to check quickly though is to pull the PCU out and reinstall it, just to make sure that connection isn't the problem.)

You can either replace the TD sensor by itself, or replace the DV unit (which probably won't be much more expensive). But either way, you'll need to install new developer when you replace the parts.

Posted on Aug 24, 2011

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1 Answer

The printer copies turn out with a faint gray background through half of the copy. Its as if something is dirty and it printing the dirt.


Hi,
it could be few things,
Its probably drum unit fault, probably the cleaner is worn out and doesnt clean drum surface enough.Remove the drum unit and see if there is "leftovers" on drum surface and if Yes change the drum unit.
If the copie isnt baked enough that means that the fixing roller is worn out and you need to change it.
If You are using replacment toner, not genuine from Canon, also it can cause problems like bacground, dots, spots,...

Hope that helps!

Sep 09, 2010 | Canon imageRUNNER 1023N Black and White...

1 Answer

Gray copies


Most likely you do not reset the drum. In this case, a new drum unit serves as the currents in the old, respectively, due to lack of charge is a problem with a gray background. Information on how to reset the imaging drum is open and is the official website of the manufacturer.

Jul 27, 2010 | Brother IntelliFAX 4100 Laser Fax

1 Answer

How do I clean the drum on the Brother MFC-8440


It should be constantly cleaned by it's cleaning blade with every revolution. If that's not making continuous contact inside the drum unit, then it's time to replace the drum. The symptom to look for is not just a gray background, but images that repeat about 3 inches down the page as the drum rolls around to that point again.
If the background is gray without noticeable repeating image, it may be a defective toner cartridge. We've wasted a fair amount of money replacing Brother drums when it turned out to be the much cheaper toner cartridge. If it's a new cartridge, take it back to the store along with before and after print samples.

Jan 21, 2010 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

When we print black type on a white background, the background comes out gray and gets rapidly worse from one sheet to another. Although we have calibrated and done all of the other maintenance and...


this could be a problem of black drum,unit(needs change)it is cause by defective cleaning blade or the charge roller inside the drum unit hopethis will help

Jul 27, 2009 | Canon Office Equipment & Supplies

5 Answers

My copier is Aficio MP4500 with background after replacing drum and developer.jj


swan this model doesnt have a transfer roller its a transfer belt and even if the trasfer belt is damage the problem it would cause is that the back of the paper would be dirty.

Jun 08, 2009 | Ricoh Aficio MP1600SPF Copier

1 Answer

Want a B&W copy from colored sheet of paper w/o dark background.


It's never going to be perfect (unless the background is quite light in colour), because the copier basically "sees" the coloured background as "gray", and the darker the background the more "gray" it looks. Try setting the original type to "photo" mode, and then adjusting the exposure a little lighter/darker....that's all you can basically do.

Mar 25, 2009 | Canon imageRUNNER C5180 Color Copier

1 Answer

Dell 1700 laser. refilled toner, getting gray background


Check toner darkness settings using the setup utility.

Oct 18, 2008 | Dell 1700 Laser Printer

1 Answer

Copies have gray background.


Have you had the optics cleaned resently? If not Iwould start with that and make sure you have the copier unpluged and don't forget to clean the two mirrors under the Black Box/cover. It could also,mean that you need a new OPC drum and blade.. It depends on how maiy copies are on the copier and drum...

Sep 04, 2008 | Toshiba 2060 Copier

2 Answers

Developer....


When developer goes bad you use more toner for one thing, but the main sign is a gray background in your copy. The print should be black but appears to be gray. The ricoh 350/450 was always noted to leak toner and developer as it runs. Check your machine and see if you see any small piles of toner, which also has developer in it, in the machine. Ther are small seals made of felt that need to be replaced if you have this problem. These seals rub against the drum sides....Good luck.

Jul 20, 2008 | Ricoh Aficio 450 Copier

1 Answer

Gray background, but copied text is visible


With toner being dropped I would take a close look at the cleaning unit next to the drum. Sometimes they become clogged or wear out. Inside the machine, can you see toner that has spilled or piled up? If so that is an indication of a faulty cleaning unit.

MM85

May 23, 2008 | Canon NP 7130 Black and White Copier

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