Ricoh B889 User manual

B889 - Fan Fold Unit
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Slide 1
B889: FD6500A (Fan Folder)
B890-17/-27: FD6500B (Fan Fold Unit)
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PURPOSE OF THE SECTION
The mechanisms of the optional Fan Fold Unit will be explained.
In the ‘video’ folder of this course, there are four videos to illustrate how the
Fan Fold Unit works. There is also a .doc file that contains a commentary.
Please use these for your training.

B889 - Fan Fold Unit
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Slide 2
OVERVIEW
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B889 - Fan Fold Unit
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Slide 3
Model Details
The FD6500A can be installed with the B286 and
D046/D049.
When installing with D046/D049, it is necessary to
install the Bridge Unit BU6500 (D407).
B890-17/-27: FD6500B (Fan Fold Unit) must be
connected with B890-57 (Transport and Cross
Unit).
The Manual Feeder and Bridge Unit (connected to
the Fan Fold Unit) are assembled at the factory.
For details on the Transport & Cross Fold Unit,
refer to B890: Folder FD6500B (Cross Folder)
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B889 - Fan Fold Unit
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Slide 4
What is the Fan Fold Unit?
The Fan Fold Unit
receives output from the
copier, folds it, and feeds
it out to the exit at the
bottom rear of the unit.
Outputs can also go
straight through without
folding, and are fed out at
the top exit.
Example of Folded Output
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B889 - Fan Fold Unit
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Slide 5
Optional Manual Feeder
An optional manual feeder unit can be attached to the top of the
Fan Fold Unit.
Outputs made previously (or even on another machine) can be
fed from this manual feeder through the Fan Fold Unit, and these
outputs will be folded.
Main Machine Manual Feeder
Fan Fold Unit
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B889 - Fan Fold Unit
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Slide 6
Fan Fold Unit
Heater Switch Power Switch
Exit for Straight-
Through Output
Tray for Straight-
Through Output
Exit for Folded Output
Tray for Folded Output
Heater Switch: Turn this on manually when humidity is high, to prevent paper
from wrinkling. The heater remains on even after the Fan Fold Unit is
switched off.
Tray for Folded Output: the capacity of this tray is 1 copy only. Each copy
must be removed immediately, before the next copy is fed out.

B889 - Fan Fold Unit
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Slide 7
Turning on the Power
The power on/off sequence is important.
To turn the Fan Fold Unit on
1. First, switch on the Fan Fold Unit.
2. Next, switch on the main machine.
The Fan Fold Unit must be turned on first. Otherwise, the
Fan Fold Unit will not recognize the main machine.
To turn the Fan Fold Unit off
1. First, switch off the main machine.
2. Next, switch off the Fan Fold Unit.
The main machine must be switched off first.
Switching off the folder first will cause an alarm. If this
occurs:
» 1. Switch the Fan Fold Unit on again.
» 2. Switch off the main machine.
» 3. Switch off the Fan Fold Unit.
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B889 - Fan Fold Unit
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Slide 8
Operation Modes
If the manual feeder is installed, there are three
operating modes.
Full operation mode
System offline mode
Independent offline mode
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B889 - Fan Fold Unit
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Slide 9
Full Operation Mode
The main machine and Fan Fold Unit are both powered on
and online.
If the Online indicator is not lit, press the Online/Offline
button to put the folder online.
Paper feeds from the main machine.
A junction gate inside the Fan Fold Unit determines
whether the paper goes straight through, or down to the
folder mechanism.
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B889 - Fan Fold Unit
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Slide 10
System Offline Mode
The main machine and Fan Fold Unit are both powered on,
but the folder is offline.
If the Online indicator is lit, press the Online/Offline button
to take the folder offline.
Each unit can be used independently of the other.
To use the folder in this mode, feed the paper from the
manual feeder.
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B889 - Fan Fold Unit
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Slide 11
Independent Offline Mode
The main machine is turned off, but the Fan Fold Unit and
manual feeder are turned on.
If the Online indicator is lit, press the Online/Offline button
to take the folder offline.
To use the folder in this mode, feed the paper from the
manual feeder.
This is the same as system offline mode, except that the
main machine is turned off.
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B889 - Fan Fold Unit
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Slide 12
Important Points - 1/2
The Fan Fold Unit can handle plain paper only.
Do not feed translucent paper or OHP
transparencies through the Fan Fold Unit.
If the humidity at the work site is extremely high,
turn on the heater switch of the Fan Fold Unit.
Otherwise, do not turn this switch on.
The heater remains on, even when the Fan Fold
Unit power switch is off.
Folding position adjustment done on the
operation panel of the manual feeder is applied
to each fold.
There cannot be less than 8.5 inches between
folds.
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B889 - Fan Fold Unit
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Slide 13
Important Points - 2/2
When a fan fold is adjusted, the last surface will be shorter
than the others, because the lengths of the others have
been increased.
For example, if fan folding is increased by +0.05 inches for
a job where three folds are done to create four surfaces,
+0.5 will be added to the first 3 surfaces but the last surface
will be 0.15 shorter.
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B889 - Fan Fold Unit
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Slide 14
Components
See the component list in the service manual.
In the part names, (R) means Rear, and (F) means Front. This is necessary
because there are two folding mechanisms, one towards the front of the
machine, and one towards the rear.

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Slide 15
Drive Layout
Fan Fold Rollers
Fan Fold Motor
Folder Plates
Fan Fold Motor
Transport Motor
The transport motor controls the rollers in the paper path through clutches.
The two fan fold plate motors control the movement of the folder plates,
which form the folds in the paper.
The fan fold motor drives the fan fold rollers, which that press the folded
paper, to make firm folds in the paper.

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Slide 16
Firmware Update - 1/2
Prepare IC card with new
version of firmware.
Switch off main machine.
Switch off Fan Fold Unit.
Remove left upper cover
and lower left cover.
Insert IC card into slot of
MCU board as shown at
left.
Switch on Fan Fold Unit
to start firmware update.
Watch the LEDs on the
PCB.
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Slide 17
Firmware Update - 2/2
During installation:
LED1 - Flashes; LED2 - On; LED3 - Off
Installation completed:
LED1 - Flashes; LED2 - Off; LED3 - Off
When LED2 goes off, switch off the Fan Fold Unit.
Remove the card from the slot.
During Normal operation:
LED1 - Flashes; LED2 - Off; LED3 - Flashes
12 3
LED
IC Card Slot
MCU PCB ( Side View )
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Slide 18
DETAILS
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Slide 19
Feed Path
Straight-through Mode
The junction gate solenoid stays off, and the path that goes
down to the folder is blocked.
Paper goes past the straight-through sensor, and out of the
machine without being folded.
Junction
Gate
Solenoid
Straight-
through
Sensor
This slide shows what happens when folding is not selected for the job.

B889 - Fan Fold Unit
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Slide 20
Feed Path
Folding Mode
The junction gate solenoid turns on, and the path that goes down
to the folder opens.
Paper goes down to the folder mechanism, past relay sensor 1.
Relay
Sensor-1
Junction
Gate
Solenoid
This slide shows how the folder sends paper down to the Fan Fold Unit when
folding is selected for the job.