Question about Ricoh Aficio AP4510 Laser Printer

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How do i seperate the drum unit from the dev unit

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For the 4510, the two units are provided together as one supply item and are not meant to be separated. However, if you do need to separate them, there should be two vertical screws (one in the front and one in the back) and a couple of screws on the metal plate on the backside of the two units.

Be careful when separating the two units. There is toner that can easily spill out of the PCU if it is flipped over.

Posted on May 29, 2010

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Error code F-26-1


Is the devoper unit turning? Wipe the mag roller clean & power up, is the roller covered again by dev/toner, if not, it's the dev motor that's failed. Have you checked the toner recycle unit at the back? These get blocked , so no toner gets into the dev unit, is the m/c noisy, check the drum recycle unit isn't blocked.....is the toner bottle turning....

Oct 28, 2013 | Office Equipment & Supplies

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BLANK COPIES FROM KM 2550


first chek dev unit toner? pls insert toner 1087+ 1087+ 130 set dev enter ok then 10 mnt wait and check drum and dp closing time corect sitting or chage edge of dp unit you cleang time smothing wrong?? comng blnk copy

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Copy quailty back ground .fixed new dev .toner always not stop .


look my dear try to first step make free run via 5802 sp 2- clean drum unit carfully throuh clean cleaner drum attention: free run make it 100 sheet but i don't under stand yo in last sentence ( fixed new dev toner

Feb 05, 2011 | Ricoh Aficio 450 Copier

1 Answer

What is a dev unit?


It is the unit where you slide the toner cartridge into.
There is a material in the unit that has developer in it. That delivers the ink to the drum.
Once you take the toner cartridge out of the machine, you will see one blue shaded phillips screw. Once you loosten the screw the unit will pull out, you can then dump the dev out and install new dev.
You then have to enter diagnostics and clear the developer count.
You press P * C * or # * C *, then enter 25, or 26 and then 06 to clear the drum count and 07 to clear the dev count.

Dec 13, 2010 | Sharp AL-1641CS Laser Digital Copier

1 Answer

How to change devolper


Remove the waste bottle then the drum unit from the front of the machine.**Cover the drum unit so it is not exposed to the light.
Remove the Developing unit and empty the developer from the dev unit into waste bag. Once all the developer is removed...take the new bottle of developer and pour it all into the dev unit. Replace the plastic cover back onto the top of the dev unit. Re-install the dev unit back into the machine, then replace the drum unit back into the machine then replace the waste toner bottle. Close the front door. Enter the copier adjustment mode on the keypad by pressing "user preset,Orig size(Ledger), and Multi-copy key #3 in sequence.
Then press Multi-copy key #8 , then press the Print key.
Now select th code "09" and Press Print.
The machine will run for approx 2 minutes to initialize the new developer. Press Clear/stop and User preset to escape from the service mode. You are done.

Jun 07, 2010 | Panasonic FP-7750 Black and White Copier

1 Answer

What does code: DK means?. How can I fix it?


This code indicates that the Black Drum has reached 100k. It could also be the black developer and primary transfer belt are at 100k.

DC = Drum Cyan
DM = Drum Magenta
DY = D
rum Yellow
DK = Drum blacK


Even if it is reset you will still need the drum unit or drum/mc kit replaced very soon. These units do not last much longer than specified. After this the print quality deteriorates rapidly. Eventually the drum edges wear away so much that they can force developer out of the dev tank. You can usually get away with not replacing the K dev. If you reset the K dev at the same time as replacing the K drum unit, the machine adjusts itself can function normally. A dev normally lasts 200-300K. The primary belt unit lasts longer than the 100K spec and often beyond 200K out of them before replacement or refurbishment.

Finally, make sure that the Firmware is up to date.

Sep 30, 2009 | Sharp MX-3501N All-In-One Printer

1 Answer

Copystar cd-2550 copier , drum replacment print problems


hi 
the drum unit on this model has two plugs which need to be plugged in and one on the dev unit that can come loose.
also the metal mechanism under the dev unit has to be pushed in to enable toner to get onto the drum.
is the transfer roller fitted correctly?

Mar 26, 2009 | Kyocera Copystar CS-1820 Black and White...

1 Answer

My 5316 copier keeps blinking F2 and willnot print I have changed my developer still it keeps showing F2


F2 - Black toner supply trouble
Try a different toner cart, remember to shake the cart. before installing. Power the machine on and off and check. Check the sealing tape has been fully removed from the cartridge as well as the green colored plug.
Also, if you have an original drum unit frame, change the frame with the new Modified version to prevent arching at the rear cover of the drum unit against the inside back plate of the machine.
Check that the black dev. tank is not low or empty, re-position both drum & dev. tank.


Pls rate - Thank you

Mar 02, 2009 | Sharp AR-5316 Advanced Digital Imager...

1 Answer

Afficio 450 or gestetner 3245 calibration


Dev. Change Process

1. Check that Dev. unit has the lastest seals.
2. replace dev. material.
3. Dump dev.
4. add new dev. material.
5. Hand rotate the dev. unit 10 times.
6. reinstall the dev. unit into machine.
7. cover the toner inlet opening with a piece of paper
8. insert PCU unit.
9. turn the machine on.
10. When machine reaches ready -- enter SP modes and perform SP-2801 (2 times)
11. open the right cover of the machine. Cheat the right cover switch. Examine the drum as it rotates. Afew bands of toner and the ID pattern will be developed on the drum. The drum should be clean -- a slight dusting on the drum is OK.
12. Perform SP-3001 -- ID sensor initial setting.
13. ** Important** remove the PCU unit. Empty the toner from the PCU by sliding the shutter on the bottom of the PCU to the side and tapping the PCU.
14. reinstall the PCU.
15. Run test copies.

Pls rate -- thank you

Mar 02, 2009 | Ricoh Aficio 450 Copier

3 Answers

Printing problems


Hi there check that it isn't the drum unit by turning the machine off open the top cover remove the toner and underneath you will have the dev unit unplug and lift out then remove the transfer tray (the one you open if there is a jam) open side door remove waste tank then you have the drum unit now to remove there is either a push button or a screw do either one that corresponds and check the unit. If there is a black line on one side the only way to get rid of the line is to replace the cleaning blade as this has worn. you can clean the drum unit cleaning blade it may only be toner stuck under the blade all you have to do is rotate the drum the opposite way of operation and if you have to hand a air line just give it a blast failing this it will defently need replacing.

Hope this is of some help
Please rate me
Cheers J

Dec 31, 2007 | Kyocera Mita FS-1920 Laser Printer

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