The fuser exit rollers are the light grey painted rollers on the exit of
the fuser itself. There is a slider mechanism that when slid forward
or towards the rear, will adjust the pinch of the roller. Primarily it
is there to deal with what is called a waxing effect where the rollers
physically leave an impression in the soft toner on thick stocks.
Reducing the pinch for thick stock reduces this. However, when doing
thin stock, especially letter size paper, jamming can occur if the pinch
is not engaged since there is no physical contact to drive the paper to
the next conveyance rollers when doing duplex or face down printing.
The slider can be found on the left side door of the fusing unit itself, near the front. Normal operation is in the middle.
Replacing the CDB is just one of many troubleshooting steps, it is not the end all to this.
The 3102 code you encountered has nothing to do with temperature and
humidity. It is a code related to the failure of the fuser conveyance.
Gamma correction is also unrelated because gamma correction is image
related, not conveyance related.
I highly suspect that you are encountering this code because of some
kind of failure related to the fusing unit itself, again related to the
movement of the fuser, which usually is in motion during many test modes
of the main body components. Check all the connectors to ensure they
are seated properly. The previous document relates to what to check and
replace related specifically to fuser pressure roller.
We do not leave fusers at the customers either. We have spares at the
shop that we rebuild during slow periods. This is simply our own
initiative, not the norm, and is also a part of our troubleshooting
regarding fusing unit related errors that are not so obvious...it is
part of the elimination process, as some fuser related codes can be
caused in other areas, such as the CDB, a bad conveyance clutch or motor
or simply timing adjustments that are out of the normal range.
1.One of the gears in the fusing unit gearboxfails. The shaft for fusing
unit gear/H has been changed so that it is now supported at both ends
instead of just
one end. The gear is now made of a stronger material.
The new design has been incorporated into all bizhub PRO C6500 machines
beginning with s/n A03U0000787. A replacement gearbox is available for
machines with lower serial numbers. For the machines with serial numbers
between A03U010000788 and A03U010001446 the fuser gearbox is already
updated and only fusing gear /H (p/n A03U808811) needs to be replaced.
Note :See attached Bulletin Number5923.This only applies to bizhub PRO
C6500. All other models have the new style. To viewthe PDF, Adobe
must be installed. Adobe Reader® can be downloaded for free from the Adobe® web site at: Adobe - Adobe Reader download - All versions .
2. The machine cannot determine the separation cam home position.
Check the following items PS16 (p/n 08AA 8551 2) and Release Actuator
flag (p/n A03U 7244 00). Make sure when the fuser jam release green knob
turned counterclockwise, the Release Actuator flag (p/n A03U 7244 00)
blocks and unblocks PS16/PS17. Check to see if the sensor is
turning the Fuser Jam removal Knob does not change the position of the
Release Actuator flag, then check the drive gears associated withM30
8003 0) for broken or stripped drive gears andreplace them if damaged.
3. A one-way gear (p/n A03U 8093 00) is slipping in the fixing drive assembly.
Replace the (3) fixing drive gears with the modifiedFixing Drive Gear/M
22T (p/n A03U 8093 11) andthe fixing drive shaft/A (p/n A03U725800).
Please refer to the attached Parts Modification Notices for details. To
view a PDF, Adobe Reader® must be installed. Adobe Reader® can be
free from the Adobe® web site at: Adobe - Adobe Reader download - All versions .
4. Failed fixing limiter.
Replace fixing limiter (p/n 65AA53651).
5. Failed ICP14 on Conveyance Drive Board
Replace Conveyance Drive Board (p/n A03U H050 04).