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Gestetner 3245 dev.bias setting....

I have gestetner 3245 copier it has a lighter copy before but i change the dev. bias setting to 700v the default is 600v now my copier copy gud... can any1 give me feedback about dv bias? wat is the disadvantage of it i change the setting... ..

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  • thraser
    thraser Jul 05, 2009

    wat u mean adjust the laser power up wer can i find it? wat is the short cut key ( short cut key i mean just like if u initialize dv -short cut key is 2805)

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  • 313 Answers

Hi how you doing the main problem with changing the dev bias is that the gap between the drum charge and dev bias has been brought closer and so more toner is being put onto the drum for image density.. I take it you have cleaned the optics on the scanner mirrrors and that the laser **** glass has been cleaned as these effect the copy quality too.. if the dev hasnt been changed at the pm intervals it slowly looses its charge holding capabilities.. you should change at least at the 160k marks to keep quality good.. you could also adjust the laser power up so you have a stronger image formation..hope this helps..if you know the machine I would take the laser unit out too and take the cover off to see if there a dust coating in the image mirrors as this can cause faint copies over a long period.. Good Luck A

Posted on Jul 01, 2009

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For ricoh copyar


to change these settiings you will have to enter the service mode .. to do this press the yellow clear button then type 107 then hold down the stop[red button] hold this down for 5 secs and the screen should change select copier sp mode and then item 2 drum the charge settings are the first selection usual setting is 900 by making it higher you will make it lighter..you can also check the dev bias this should be 550 by making it lower it will make it lighter also.. before you do these changes make sure you have cleaned the exsposure mirrors and the laser lens glass if on you copier tis will be on the panel above the drum or under the dev unit

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Hw many grams dv is needed in afficio 450 or gestetner 3245


I just responded to your other thread, sounds like you are trying to use a generic dev, or something. You are asking for big trouble.

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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

1 Answer

How to calibrate the dv and toner...afficio 450.or gestetner 3245


Hello sir; Just follow the steps;
1, dump entire dv use vaccunm cleaner to cleanup don't leave any dv inside.
2, thorughly clean out magnet roller by rubbing alcohal.
3, pour in new dv evenly.
4.Do simulation 2801 & 2805, the procedure as follow;
press"clear mode", "107", press and hold "clear/stop" key for 3 seconds, then press 1 for copier sp then enter2801 press start, after that go to 2805. same procedure. Let me know the resolve.

Mar 02, 2009 | Ricoh Aficio 450 Copier

1 Answer

Gestetner 3245 get lighter wen run 50 to 100 pgs


the amchine runs a density patch every 50-75 prints if you run long jobs it cannot run patch till job is finished which is why your copies get lighter the longer the job

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