Question about IBM Infoprint 70 Laser Printer

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Developer mix i do have this user guide manual but none on this manual on how to replace it. it was only written was call for a service representative, but its not need because it was not under maintained by any service representative...i want to do it my self to fix this. if you have any idea that i can get the procedure or even maintenance manual for this it would very help full....thanks

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I have surplus developer mix #01P9341, toner #69G7372 and Fuser cleaning Web#69G7374 available. I will sell for $50 each. Email me

Posted on Jun 05, 2009

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Amana tc522qw instractions

If you go to this web site:
there are 7 user guides you can download
User's Guide
Installation Manual
Quick Start Guide
Service Manual
Installation Software
Spare Parts (IPL)
Hope this is helpful, if so would you please register that with Fixya

Dec 05, 2014 | Printers & Copiers

1 Answer

How to change developer in km c352

Hello !
You can find on internet the service manual, there is all you need about repair the copier (including developer charge).
I hope to be helpful.

Sep 03, 2014 | Printers & Copiers

1 Answer

Ricoh afficio 1045 & ricoh 450 toner is mixed in ricoh fw 780 now background and negative image is coming what can i do plz give some idea

firstly you need to remove the developer and vacume the developer unit and magnetic developer roller.
Put in new developer and correct toner in toner unit.
Call service...
After replacement there is a sequence wich needs to be done, for developer initialization.

Aug 16, 2011 | Ricoh FW 780 Black and White Copier

1 Answer

We need to replace the drum unit on a Minolta Di3510 and were told that when you replace the drum unit you also need to replace the developer. Where and how is the developer replaced on this unit.

Not familiar with your model.... but...
When you install the toner cartridge, the toner is routed into a developer unit. this unit has "developer" in it that mixes with the toner. Generally you purchase the developer, remove the developer unit, remove the top cover of the unit, empty the contents of the unit. add the new deveoper to the unit, replace the cover, install the toner cartridge. a lot of times this requires going into service mode to reset the developer count and run a conditioning mode. Not sure if this is any help but here you go.

May 18, 2009 | Printers & Copiers

2 Answers

Error code 59.c0 in HPLaserjet 5550

This means a printer motor error has occured. From the service manual: C developing disengaging motor rotation error.

To fix:

Developing disengaging motor
1 Reconnect the connectors J16 for the developing disengaging motor and J1100 for the DC controller PCB.
2 Replace the developing disengaging drive assembly.
3 Replace the DC controller PCB. Calibrate the printer after replacing the DC controller.

So, at the very least you'll need the developing disengaging drive assembly and, if that doesn't fix it, then you'll need the DC controller board. My bet is the DC controller has failed.

Sorry for the bad news, but please rate this solution as fixya even if it wasn't what you wanted to hear. Thanks.

Jan 10, 2009 | Printers & Copiers

1 Answer


The answer to you question is "no". Epson printers do not have developer units mixed in with the toner. They are a seperate unit all together. If you look around, you might find an epson warranty service agent who is happy to sell you the developer, however dependant on the unit, they are fitted in variouse ways and may require some technicle expertise to install.


Nov 07, 2008 | Epson ACULASER CX11NF All-In-One Printer

5 Answers

AP3800c Ricoh - Service Manual Needed please.

Look on eBay. There's someone called manualplace selling the service manuals on CD-ROM.

Dec 09, 2007 | Ricoh Aficio AP3800C Laser Printer

1 Answer


Do you have a AR-LC4 attached to the machine, if you do make sure that it is attached securely and level. 

If that doesn't work, check your developer unit looking at the drive gear in the back of the unit.  Turn the gear and make sure that it turns the mixing paddles without slippage.  If it slips, replace the gear. 

If it turns everything okay then check the mixing paddles it self to make sure that none of them are broken and not getting toner to the developer, if they are broken replace them or replace the whole developer unit and developer.

Oct 26, 2007 | Sharp AR-651 Copier

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