IM 9000 Fusing issue

[Old Crow]

Got an off lease IM 9000 in to replace an MP 9002, with 78k on the meter. The toner rubs off after only about 20 pages. The lower roller was very hard and had flat spots so we replaced that but no help. The toner builds up very quickly on the web, as though it's not turning but we tested the web motor in service mode and it is working and turning properly. The web gears are all good also. The pressure between the fuser rollers seems good. Firmware up to date.

We are thinking to replace the upper fuser roller. It looks a bit worn but again, it only has 78K on it. The toner installed is OEM.

We have the service manual but no parts manual and have been unable to find one online. Also can't find any vendors that sell fuser rollers for the IM 7000/8000/9000. Tried Precsion Roller, GMS, etc.

The fuser rollers in the machine look like MP 6002/7502 rollers...not like the heavier looking MP9002 rollers. The lower roller that we put in was for a MP6002...same size, etc. but not sure if it is adding to the problem or not. The symptoms didn't get any better or worse so I don't think it's an issue.

So...questions:
Anyone had weird fusing issues with these?
Where to get correct fuser rollers?
Parts catalog or fuser roller numbers?

Thanks

[dalewb74]

well it seems you know. if the toner is rubbing off then sounds like you need a new fuser. parts catalog or parts finder from ricoh for part numbers.

[luca72]

Got an off lease IM 9000 in to replace an MP 9002, with 78k on the meter. The toner rubs off after only about 20 pages. The lower roller was very hard and had flat spots so we replaced that but no help. The toner builds up very quickly on the web, as though it's not turning but we tested the web motor in service mode and it is working and turning properly. The web gears are all good also. The pressure between the fuser rollers seems good. Firmware up to date.

We are thinking to replace the upper fuser roller. It looks a bit worn but again, it only has 78K on it. The toner installed is OEM.

We have the service manual but no parts manual and have been unable to find one online. Also can't find any vendors that sell fuser rollers for the IM 7000/8000/9000. Tried Precsion Roller, GMS, etc.

The fuser rollers in the machine look like MP 6002/7502 rollers...not like the heavier looking MP9002 rollers. The lower roller that we put in was for a MP6002...same size, etc. but not sure if it is adding to the problem or not. The symptoms didn't get any better or worse so I don't think it's an issue.

So...questions:
Anyone had weird fusing issues with these?
Where to get correct fuser rollers?
Parts catalog or fuser roller numbers?

Thanks

hi, you have to check/clean/change the small carbon brush that grounds the fuser roller, it is a very small part, which however many people neglect, if it does not touch the roller well, the accumulated electrostaticity will tend to get dirty very quickly the roller, if the brush works well, the toner will adhere much more difficult on the surface of the fuser roller

[Old Crow]

hi, you have to check/clean/change the small carbon brush that grounds the fuser roller, it is a very small part, which however many people neglect, if it does not touch the roller well, the accumulated electrostaticity will tend to get dirty very quickly the roller, if the brush works well, the toner will adhere much more difficult on the surface of the fuser roller

Thanks for this information, will check that out. Would you have part numbers for the fuser roller? Are they compatible with previous models? Thanks again

[Polo-022]

AE01-1137 (Hot Roller) AE02-0242 (Pressure Roller) AW10-0191 (Middle Thermistor) AW10-0192 (Inner Back Thermistor) AE04-5069 (Fuser Clean. Web)

[Old Crow]

AE01-1137 (Hot Roller) AE02-0242 (Pressure Roller) AW10-0191 (Middle Thermistor) AW10-0192 (Inner Back Thermistor) AE04-5069 (Fuser Clean. Web)

Thanks...much appreciated!

[Old Crow]

Update: Replaced the upper fuser roller...no help. New fuser rollers, plenty of pressure between the rollers, roller temps good, OEM toner, carbon brush looks good and making good contact with end of roller, fresh decent paper. After advancing the web to a clean spot, there is toner buildup across the web after printing the pcl config page, only 7 pages.

Gonna try increasing the fuser temp but that's all I can think of at this point. Anymore ideas appreciated.

[Ricoh-ono]

Years ago I had a machine with a bad lamp. The other lamp(s) were just hot enough to keep the machine from throwing an error code but not hot enough to bond the toner to the paper. I was able to ohm out the bad one.

[Old Crow]

Years ago I had a machine with a bad lamp. The other lamp(s) were just hot enough to keep the machine from throwing an error code but not hot enough to bond the toner to the paper. I was able to ohm out the bad one.

Thanks for this...I did consider this. Removed front cover on fuser, cheated the door and watched the lamps, initially both come to get up to temp then one steady and one goes on and off to maintain.

[luca72]

Thanks for this...I did consider this. Removed front cover on fuser, cheated the door and watched the lamps, initially both come to get up to temp then one steady and one goes on and off to maintain.

try to display the fuser temperature, and check on service manual if there is too gap, the service manual on pm table suggest of replace any termistor at certain number of prints...I understand that it is used, some parts may have been replaced with the wrong one in the past(?)....I seem to remember (but I could be wrong) that the lamps don't always turn on all at the same time
the web motor can rotate by "sp output check" but if its malfuntioning, it may not rotate with small pulses during normal operation...if you suspect this you can replace it with another of old series by soldering the his harness, because ricoh change ever the connector.
you can try also to clean it, submerge the web motor in a glass of alcool for a 10 minutes, and blow well with air this remove the oil vapour accumulated on the carbon brush

[Old Crow]

try to display the fuser temperature, and check on service manual if there is too gap, the service manual on pm table suggest of replace any termistor at certain number of prints...I understand that it is used, some parts may have been replaced with the wrong one in the past(?)....I seem to remember (but I could be wrong) that the lamps don't always turn on all at the same time
the web motor can rotate by "sp output check" but if its malfuntioning, it may not rotate with small pulses during normal operation...if you suspect this you can replace it with another of old series by soldering the his harness, because ricoh change ever the connector.
you can try also to clean it, submerge the web motor in a glass of alcool for a 10 minutes, and blow well with air this remove the oil vapour accumulated on the carbon brush

The temp output shown in the service mode is what it's suppose to be. Checked the nip width...good. Yeah was gonna try the MP9002 web ass'y but the connectors are different. Agree on there could be older/wrong parts or supplies as some times dealers take the good stuff out of low meter machines going to wholesalers. The fuser does look like it only has 78k on it though.
We don't have another of these in the field to swap parts. Has OEM toner but maybe bad developer? Grasping at straws. Gonna try to get another fuser from the vendor to experiment with. Will let you know what we find.

[luca72]

The temp output shown in the service mode is what it's suppose to be. Checked the nip width...good. Yeah was gonna try the MP9002 web ass'y but the connectors are different. Agree on there could be older/wrong parts or supplies as some times dealers take the good stuff out of low meter machines going to wholesalers. The fuser does look like it only has 78k on it though.
We don't have another of these in the field to swap parts. Has OEM toner but maybe bad developer? Grasping at straws. Gonna try to get another fuser from the vendor to experiment with. Will let you know what we find.

thinking about it better, I'm becoming more and more convinced that the problem lies in the cleaning web unit, in the past there have been problems with the reduction gear box, and with the motor, check the gears carefully, there could be one with some broken teeth, or damaged, you can remove the black cover (1x screw) and make two marks with a pen on the cloth, and then use the machine normally (without sp output check web motor) and see if the web advances well, within a certain period of use.
If you have a martini of any series, most likely I can swap the gear case, to try

[Old Crow]

thinking about it better, I'm becoming more and more convinced that the problem lies in the cleaning web unit, in the past there have been problems with the reduction gear box, and with the motor, check the gears carefully, there could be one with some broken teeth, or damaged, you can remove the black cover (1x screw) and make two marks with a pen on the cloth, and then use the machine normally (without sp output check web motor) and see if the web advances well, within a certain period of use.
If you have a martini of any series, most likely I can swap the gear case, to try

Thanks for the additional suggestion, we'll try that. The web does advance when in output mode and holding the ass'y. in hand but may not when under a load in the machine.

[luca72]

Thanks for the additional suggestion, we'll try that. The web does advance when in output mode and holding the ass'y. in hand but may not when under a load in the machine.

exactly!

[copyboy99]

Thanks for the additional suggestion, we'll try that. The web does advance when in output mode and holding the ass'y. in hand but may not when under a load in the machine.

by any chance are you using correct power cord, 15a vs 20a, recently on one new install newbie tech some how manage to use 15a power cable sent by mistake from warehouse, had similar issue, after replacing entire Fuser Assembly, couple of boards, finally Team lead went on site and found wrong power cable, hope this would be helpful.