AF-1060 & 1075

**breaker** · 05-29-2009, 11:50 PM

So the toner add clutch does come on sometimes? They are known for going out on that series - replace dev motor ass'y.

Otherwise, so many things, mainly is it clean and up to PM spec? A worn drum cleaning brush can cause dusting on the ID sensor making it think there are dark copies, but it is just dirty and getting a bad reading. Check those areas, then if needed, replace the drum cleaning brush, and developer.

If nothing else - clean the machine and replace the developer with fresh developer!

**scepter2112** · 05-30-2009, 01:31 PM

This is probably a dumb question. Have you checked the Toner Density sensor. Does changing to Pixel counter make a difference?

**skyshot23** · 05-30-2009, 02:23 PM

sensor

yeah right, you must check the all the sensors thats regards with toner,, specially the toner sensor,,or else check the development unit

**tcs04** · 05-30-2009, 04:39 PM

Originally posted by T911

Light copies. Forced toner looks good. Run 600 copies on it and watch it get lighter and lighter. Released the toner bottle to watch the auger spin while the add clutch is coming on and off to add toner only in sp 2 mode, but when running copies out of sp mode the add clutch doesn't come on to add toner. Thanks t

Check the Toner End Sensor (Front of the toner hopper) these used to fail on the FT6645 machines which were essentially an analogue version of the same toner system. The effect was that the machine would exhaust all toner from the hopper without asking for more and give pale copies.

The auger you see spinning is the Dev unit asking for toner. Is the bottle holder turning? If no the HOPPER is not asking for toner from the bottle.

Also test the bottle motor.

Test sensor using SP5803, SW13, Bit 6 0 = toner empty. 1 = toner present (wipe so it's clean)

Toner bottle motor SP5804 56 Test with and without bottle in place.

**bonnie750** · 05-30-2009, 06:33 PM

Make sure the m/s c is clean first of all. if the customer is using third party toner the id gets very dirty gives dodgy readings. chesk vsg etc. are they in spec?

**imaginemoko** · 05-30-2009, 07:26 PM

Is the toner hopper full and hard drive ? if yes.. try to dump the toner and clean the hopper then let the machine recover its toner level.

**breaker** · 05-30-2009, 08:35 PM

So true, if you swing out the toner bottle, and the front of the toner hopper is devoid of toner, use SP mode to make the bottle turn and dump into the hopper (on top of the dev. unit). If it isn't dumping, I have seen a problem where something is wrong with that toner bottle unit. Could be the rubber seal, could be the white shutter in the way (be sure the brown outer cover is keeping it out of the way), could be the toner bottle motor.

Yes, you can also cheat the front door, remove the toner end sensor on the toner hopper, (keep it attached), use input check to check it while you gently press against it to see if it changes states.

Also, check to see that the toner separation case is good (change every 500-600K), there are 2 clear mylars on it that like to fall off, AKA toner recycling unit. It sits on top of the toner hopper. Make sure all of the gears and augers on the hopper turn and deliver recycled toner into the system.

Remove the development unit and drum unit, shine your flashlight into the rear cavity of the machine, make sure the white cam/gear things that drive the gears on the toner hopper are not sheared off - I had this happen once too.

Otherwise cheat the front door and make sure everything is turning as far as toner hopper shafts, dev unit, bottle, etc.

Good luck!

**tcs04** · 05-30-2009, 10:00 PM

"Yes, you can also cheat the front door, remove the toner end sensor on the toner hopper, (keep it attached), use input check to check it while you gently press against it to see if it changes state".............

That's the one! And / or listen for the sensor "Tweeting"

**Shadow1** · 05-31-2009, 05:58 AM

I've also had the chuck break on several different models so that the hopper doesn't pull the internal cap in the toner bottle, but that would also give you an empty hopper on the developer. Since it will force add toner and run for a while but not add toner on its own, I suspect a dirty / bad ID sensor (or if you're like me, I've left the drum unit unplugged before

) or the machine is set to pixel count instead of sensor control.

**tcs04** · 05-31-2009, 08:32 AM

Originally posted by Shadow1

I've also had the chuck break on several different models so that the hopper doesn't pull the internal cap in the toner bottle, but that would also give you an empty hopper on the developer. Since it will force add toner and run for a while but not add toner on its own, I suspect a dirty / bad ID sensor (or if you're like me, I've left the drum unit unplugged before

) or the machine is set to pixel count instead of sensor control.

If it was the bottle chuck, the machine would display toner end as the hopper emptied (assuming the toner end sensor is plugged in and working)

**Shadow1** · 05-31-2009, 05:28 PM

Originally posted by tcs04

If it was the bottle chuck, the machine would display toner end as the hopper emptied (assuming the toner end sensor is plugged in and working)

As I said you'd have an empty hopper, but not on the mp450's & such - you usually end up with an SC350. I'm betting it's related to the ID sensor in this machine.

**tcs04** · 05-31-2009, 10:49 PM

Originally posted by Shadow1

As I said you'd have an empty hopper, but not on the mp450's & such - you usually end up with an SC350. I'm betting it's related to the ID sensor in this machine.

But MP4500's (??) don't have a hopper with a toner end sensor.

On this machine the machine should display "add toner" long before the dev unit runs out of toner due to the front end of the hopper being empty.

The I.D sensors are pretty reliable but the hopper assembly can suffer numerous problems with either drive from its motor, broken gears / shafts and failure of the toner end sensor. As it takes 600 copies for the machine to deplete the toner the problem is much more likely to be with the hopper not passing enough toner to the dev unit (hopper drive) or not detecting when it is empty (toner end sensor).

I'm not sure, but I think the machine will run the toner bottle and the hopper when you attempt a forced toner supply. This would mask faults in the hopper area as a relatively large amount of toner would be forced through the system.

Come to think of it, I had a hopper fail about 6 months ago with similar results. I think the drive inside the unit failed. We replaced the unit and the machine recovered.

If the bottle holder fails and toner isn't sent to the hopper THIS machine will display "add toner"! due to a lack of toner covering the sensor.

Make sure you have SP2210 set to 10 copies. This will ensure that the I.D is checked at regular intervals during normal operation.

Print the SMC SPmode when the machine is toned up and compare with the detoned settings.

Rather than using Forced Toner Supply to recover I believe Ricoh Tech will advise using SP2507.... Set 001 to 1 (on) and 002 to 10 copies. This will make the machine develop an I.D patch every 10 copies during a run and will add a little toner rather than dumping large amounts and stressing the developer. Reset these when you are sure that the machine is repaired

Just run abut 150 white copies and then recheck the density using SP3103 and 2223.

**KopyKat** · 06-01-2009, 12:59 AM

Originally posted by tcs04

"Yes, you can also cheat the front door, remove the toner end sensor on the toner hopper, (keep it attached), use input check to check it while you gently press against it to see if it changes state".............

That's the one! And / or listen for the sensor "Tweeting"

My money is on the "tweeter" Toner End Sensor. In a forced toner add the machine ignores this sensor. Easy check. If the 'toilet bowl' at the front of the hopper unit is not full of toner and the machine is not asking for toner, the problem is with the toner add sensor 'tweeter'.

One other thing to add a coworker had removed a reg unit from a machine and forgotten to plug the connectors on the reg unit for both the ID and Toner Add sensors. It never threw a lock up code but got gradually lighter and lighter copy. That one kicked two techs butts before we found it.

**breaker** · 06-01-2009, 03:59 AM

Originally posted by KopyKat

My money is on the "tweeter" Toner End Sensor. In a forced toner add the machine ignores this sensor. Easy check. If the 'toilet bowl' at the front of the hopper unit is not full of toner and the machine is not asking for toner, the problem is with the toner add sensor 'tweeter'.

One other thing to add a coworker had removed a reg unit from a machine and forgotten to plug the connectors on the reg unit for both the ID and Toner Add sensors. It never threw a lock up code but got gradually lighter and lighter copy. That one kicked two techs butts before we found it.

General note, if you have to change the entire toner hopper, and developer at the same time, use the SP mentioned in the installation instructions, not the regular 2-801. This way your hopper will be primed. I've had issues with this because the hopper is empty and the toner end sensor (toilet bowl) has not toner by it. In fact, in the dev. replacement procedure it says to make sure there is toner hitting that sensor.

AF-1060 & 1075

AF-1060 & 1075

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