Question about Sharp MX-2300N Color Copier

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It's asking me to change the developer unit! What is this?

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The developer unit is the part that is supposed to distribute the toner to the particular drum or photoconductor. a broken developer causes a faint or white line or even band in the concerned color. This is usually a difficult part to replace and the job is mostly very dirty. i advise contacting a technician.

Posted on Sep 27, 2010

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Posted on Jan 02, 2017

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Loud toner error


The machine does not use the toner directly from the bottle, it goes thorught a developer chamber filled with developer powder. Then the toner is charged and can "jump" over to the latent image of the drum.
In this developer chamber, there are some small gears (2-3 tiny gears) that may be worn out. Some developer may have entered the "gearbox", and the deveoper powder is very abrasive.
The teeth of the gears will eventually stop to contact and mesh up. The internal parts of the developer changer stops to revolve, and there is no toner mixed with the developer.
You can see that there is a build up of toner, but it does not enter the developer unit. These gears have to be replaced, and I allways change the developer powder at the same time.



mp 2000 developer gears-2rhlv5r3sdqqpeuzs0ozcjtp-5-0.jpg These gears must be replaced it they are worn. The image shows a brand new part that contains the gears.



mp2000 developer toner input side-2rhlv5r3sdqqpeuzs0ozcjtp-5-1.jpg This is the side of the developer unit where toner enters the developer unit. With defective gears, the developer unit can not pull toner inside of the unit, and the toner builds up in front of the unit.

The gears are cheap, but will often result in the need of new developer powder - and that is expensive.
If print quality does not have to be too good, one can use the old powder and save money. Some of the powder is lost during use, and leaks. There may be some dust in the developer too.
In order to get high quality several parts may need to be replaced.

It is quick and easy to change these gears, just a bit dirty job.

Jun 24, 2017 | Ricoh Office Equipment & Supplies

2 Answers

RICOH MP 3350B ask for toner even having a new one


Take out the toner cartridge and shake it vigorously. When they sit for a long time the powder tends to clump.

Nov 19, 2014 | Ricoh Office Equipment & Supplies

1 Answer

Imaging unit need to change


The error is quite clear, contact your service provider and ask them to change it for you, or you can buy the imaging unit as well as the developer and do it yourself if you know how to run the toner density settings and aidc settings.

Dec 12, 2013 | Konica Minolta Minolta Di351 DiAlta...

1 Answer

Am getting a functional errror on our gestetner dsc424 to replace developer units magenta and yellow. replaced both toners, but error message will not clear, even after turning off and then on again. can...


Hello!
Did you mean what you are saying?
If the machine are telling you to change the DEVELOPER UNIT why did you change the toner and hoped to reset the massage?????????????
If the machine are telling you to change the developer unit you need to change the developer unit!!!!!
Do that and your problem is solved

Sep 09, 2011 | Gestetner DSc424 Color Copier

2 Answers

Sharp Copier AR-M355N developer change is after 100,000 copies. We were at 95,000 copies and copies were becoming light and the developer done to 1/4. We were told somebody dump the developer because it...


The developer stays in the machine in the developer unit. It is SUPPOSE to stay in the unit and the level doesn't go up or down. It just looses some of its magnetic property therefore needs to be changed. I have NO idea about dumping developer, if so...SOMEONE doesn't know what they are doing.

Sep 17, 2009 | Office Equipment & Supplies

2 Answers

My copier has a cf3 code what is that


Did you recently have the developer changed? Its a code that says that it needs more toner/developer mix. Did you pull out the image unit section, check if it was seated properlydid you install the screw that holds the image unit in. is there toner in the machine, pwr on off then on to clear code, if not mite need to have the image unit developer replaced or the ATDC(Aotomatic Toner Density Control) Sensor, which is under the developing/image unit, very sentative to static electricty!

Aug 09, 2009 | Minolta EP1030/1030F CS/PRO Copier

1 Answer

Changing developer unit in afficio 450


Remove PCU, remove development unit, remove cover (2 plastic C-clips) remove filter, remove development roller (2 shoulder bolts). Clean roller and empty all developer. Pour in new developer, re-assemble unit. Reinstall drum and Development unit. Place a small piece of paper between the PCU and toner entrance hole to prevent used toner from entering dev. unit during calibration. Perform SP2-801. Remove paper form dev. unit

Apr 24, 2009 | Ricoh Aficio 450 Copier

1 Answer

Change the developer in afficio 450


To remove the Dev. unit.
1. Open the right upper cover and front cover.
2. PCU. (☛ 3.11.1)
NOTE: Spread paper on a clean flat surface that is free of pins, paper clips,
staples, screws or any other metal objects.
3. Loosen [A] (! x1)
4. Rotate bracket [B] left.
5. Development unit [C]
NOTE: Pull slowly to avoid scratching or nicking the development roller.
6. Set the development unit on the spread paper.
7. If you are temporarily installing a used development unit for test purposes,
perform SP2-220 and 2-802-1 after installation (☛ Chapter 5, “Service Tables)

Replacing the Dev. material.
1. Development unit (☛ 3.12.1)
2. Remove the development roller (☛ 3.12.3)
3. Empty toner [A]
4. Turn drive gear [B] to ensure that no developer remains in the unit or on the
developer roller.
NOTE: Dispose of the used developer in accordance with local regulations.
Work carefully to avoid scratching or nicking the development roller.
5. Pour approximately 1/3 of the developer [C] evenly along the length of the
development unit.
6. Rotate the drive gear [D] to work the developer into the unit. Repeat [C] and [D]
until all toner is in the unit and level with the edges.
7. Reassemble the development unit
8. Cover the toner entrance hole [A] with a piece of paper.
9. Install the development unit in the machine.
10. Turn on the main power switch, make sure that the machine has warmed up,
then perform the TD sensor initial setting using SP 2-801.
NOTE: When performing this setting, cover the toner entrance hole with a
piece of paper. This prevents used toner falling from the PCU into the
development unit during the TD sensor initial setting and interfering
with the Vref setting (toner density reference voltage).
11. After performing the TD sensor initial setting, remove the sheet [A] from the development unit.

This is how you replace and reset (calibrate) the new Dev. material.

Jan 20, 2009 | Office Equipment & Supplies

2 Answers

Konica 7022 F-26-2 and F-26-3


hold down the asterisk button until it asks for code, then enter 9272 then start print. go to adjustments and look for L-detect. Just navigate through until you find it, can't remember off hand exactly where it is.
Prior to this make sure the developer unit is engaged properly and all connectors are plugged in, if you vacuumed this unit you may have blown the L-detect sensor,( This sensors measures the density of the toner and developer mix). or you don't have enough developer in the unit.
Good luck!

May 28, 2008 | Office Equipment & Supplies

5 Answers

F2-02 error on Sharp AR-M237


on this code you may have to clean out the developing unit and start with fresh developer. Make sure the developer unit is not leaking from one of the bearings. You may need a tech for this one...

May 23, 2008 | Sharp AR-M237 Copier

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