Question about Gestetner DSc224 Copier

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Show drum unit

How cleaning the drum in picture

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Impossible to clean anything in a picture. You need to have the actual unit :)

Posted on Jan 08, 2013

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6ya6ya
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Posted on Jan 02, 2017

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Because of copying document is not clear.so I decide taking drum. As you can the picture. There is ink on the drum. When I start copying the first page there is waste black and then second is ok. Can you...


Dear
It may good if model and consumable life detail mentioned. In general such problems arises due to residual pressure of waste toner. Try to replace the cleaning blade(wiper blade) in drum unit including pcr roller or corona wire. Also clean the high voltage contact points.

Thanks.

Feb 06, 2015 | Office Equipment & Supplies

Tip

Understanding how laser printer works


Printing technology on organic photoconductor drum (OPC Drum) is summarized by the following 6 steps:http://i.fixya.netmabroukmedal_18.jpg
STEP1:The OPC drum must be charged with a negative charge, (electrons)
the primery charge roller apply a hight voltage to the drum.Note:if this step missing, (poor contact in the high voltage) the page will be printed all black) the charge roller is located on the drum.
http://i.fixya.netmabroukmedal_19.jpg


STEP2: The laser beam reach the drum surface to discharge the zone of text that will be printed on the paper. Note: if the laser beam don't reach the drum,( the interlock switch is not actuated when the front cover is closed) the image will not be formed on the drum. the laser unit is showing on this picture:

http://i.fixya.netmabroukmedal_20.jpg


STEP3:the developping cylinder prepare the toner to be taken by the drum, the surface that was touched by the laser beam are positive, they attract the toner by electrostatic force, the other zone push the toner because they have the same charge (both negative, coulomb law). the image will be formed on the drum surface.the developping roller is located on the cartridge.


STEP4:the transfer roller attract the image formed on the drum surface to the paper.Note: if the high voltage not reach the transfer roller, the paper comes out blank (poor contact), or if the transfert roller is dirty the quality of printing is bad. these is the picture of the transfert roller and the paper pickup roller :

http://i.fixya.netmabroukmedal_21.jpg


http://i.fixya.netmabroukmedal_23.jpg


STEP5:the image was transfered to the paper, and must be fixed by temperature, and pressure. the fixing unit or fusing unit is composed of :the hot roller and a pressure roller.
http://i.fixya.netmabroukmedal_26.jpg


http://i.fixya.netmabroukmedal_25.jpg
http://i.fixya.netmabroukmedal_27.jpg

STEP 6: the clean blade or cleaning roller remove the residuel toner on the drum surface, to prepare for a new print operation. Note :if the cleaning step was not performed the page comes out with the trace of the last print page.

on Dec 07, 2010 | Epson EPL 5900L Laser Printer

1 Answer

My printer says drum troubleshooting contact guide manual and maintence I did eveything but still not working


Hi there,
If the display shows drum error you can try cleaning it by following the steps below:
1. Open the front cover. 2. Pull the drum (black) and toner (gray) towards you, put a little force on it. 3. Remove the toner by holding down the tab on the side of the drum, then pull the toner out. 4. Use a dry lint-free cloth to clean the roller inside the drum unit. Make sure to remove any excess toner from it. 5. Put the toner back to the drum, make sure that it clicks, Reinstall the drum and toner back to the machine, 6. Close the cover.

If the display still shows drum error, go ahead and do the drum reset.

1. Open the front cover 2. Press the Options button on the control panel 3. The display should show "Replace Drum - 1. Yes 2. No 4. Press 1 to reset the drum count 5. Close front cover. The display should show the date & time
If still it shows drum error, The drum unit needs to be replace. After replacing the drum unit, do the drum reset again,
Hope this helps.

May 08, 2011 | Brother MFC 7420 All-In-One Laser Printer

4 Answers

Drum Error - see routine maintenance chapter in user guide. Do not have user guide


I tried everything and then decided to slightly change the above instructions to:


Open the front cover
press Clear/Back
Replace New Drum - select "Yes"
after the screen will show "accepted"
close the front cover and you are good to go



and WA LA it worked!!

Apr 19, 2011 | Brother MFC-7340 All-In-One Laser Printer

1 Answer

Recording from VHS to DVDR was going fine,then I stopped getting a picture. DVD player is fine plays back recordings etc. However tape player starts to play shows picture then stops showing video and...


Possibly dirty video heads. I would suggest that you run a head-cleaning tape through the VCR deck to shift surface dirt off the heads. If that doesn't work, or it sort of works, but not satisfactorily, unplug unit, carefully remove top cover, and with the VCR deck in view, gently clean the heads with a soft cloth or special cleaning stick (these look like flat q-tips but are intended for VCRs - available from electronics/hobby stores) and some alcohol (methylated spirit will work if that's all you got - but isopropyl alcohol is recommended - available from the same places as the sticks) clean the guides (gently so as not to disturb their alignment) clean the pinch roller/capstan shaft - CTL (on the right-hand side of the drum) and FE (left side) heads as well. The whole tape path should be carefully cleaned. Refit top cover (carefully), plug unit back into power, wait until it completes its startup/loading procedure, then put a tape in. You should now have a playback picture with the sound. You only need to do this as required if head-cleaning cassettes don't work properly.

If none of the above cures your problem, then the heads are abraded/worn - let's hope that isn't the case here. This model does not use a built-in head cleaner.

Feb 21, 2011 | Panasonic DMR-EZ47V DVD Recorder/VCR

2 Answers

My machine says Drum Error, refer to trouble shooting for maintenance?


Drum Error:

The corona wire on the drum unit
needs to be cleaned.
Clean the corona wire on the drum unit.
(See Cleaning the corona wire on page 122.)

or

The drum unit has reached the
end of its life.
Replace the drum unit.
(See Replacing the drum unit on page 130.)

and/or

Open the front cover
press Clear/Back
Press Start, then 00
after the screen show "accepted"
close the front cover and you are good to go.

Feb 03, 2011 | Brother MFC-7340 All-In-One Laser Printer

2 Answers

Printer says drum error see trouble shooting and maintenence care in manual. I have replace toner and drum


Drum Error:

The corona wire on the drum unit
needs to be cleaned.
Clean the corona wire on the drum unit.
(See Cleaning the corona wire on page 122.)

or

The drum unit has reached the
end of its life.
Replace the drum unit.
(See Replacing the drum unit on page 130.)

and/or

Open the front cover
press Clear/Back
Press Start, then 00
after the screen show "accepted"
close the front cover and you are good to go.

Oct 27, 2010 | Brother Tn650 AllInOne Laser Printer

1 Answer

How do i clean my canon pc 921


Hi,
these isnt toner problem. The toner when is out, gives light pictures.

These is optics problem or drum unit problem.

You need to clean beneath copy glass, clean mirrors on scaner rail assy, and beaneth zoom lens cover.

If the problem still occurs replace drum unit. Beare in mind that you after replacing of drum unit must do initialisation under service mode.

Jul 21, 2010 | Canon PC-920 Black and White Copier

1 Answer

AL-1220.......dark (w/ residue ) toner line on left side of copy. replaced toner cartridge, but still showing. having to clean small piles of toner below drum even after replacing toner cartridge. am i...


I would have to say that you are having a problem with your drum unit and or the developing unit. Most likely the problem is in the drum unit. You have a line going down the page. I would replace the drum unit and try to clean below the drum unit... Good Luck..

Dec 26, 2009 | Office Equipment & Supplies

1 Answer

No copies


You may have a bad drum ground or a bad charge cnnection.Try cleaning all contacts on the units and where they connect on the rear of the frame.

Oct 17, 2007 | Sharp AL 1631 Copier

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