Ricoh FT4430, Service Manual

Page: 268 / 465

16 April ’88
BASIC OPERATION
1. Clear Mode
When the main switch of the copier is turned on, the sorter automatically
assumes the clear mode. It also changes to the clear mode if the sort or stack
mode is recalled or if the interrupt key is pressed. In the clear mode, all
copies are stacked on the proof tray.
Sorter operation starts when a sheet of copy paper actuates the copier exit
sensor. At this time the roller drive motor and relay drive motor energize. The
motors de-energize when the paper exits the copier and the paper sensor is
deactuated. The paper sensor signal is sent to the copier through an interface
board to check for paper misfeed. The wheel drive motor does not turn on
when in the clear mode.
2. Sort
Mode
After the sort mode is selected by pressing the Sorter key, the wheel drive
motor turns on to move the proof tray up. When the first sheet of paper
activates the paper exit sensor, the roller drive motor turns on. Shortly after
the paper sensor turns off (345 ms later), the wheel drive motor turns and
advances the bins one step. When the wheel sensor is activated, the wheel
drive motor turns off.
3.
Stack Mode
As in the sort mode, the roller drive motor turns on when the first sheet of
paper actuates the copier exit sensor. All copies of the copy run are then fed
to the first bin. When the final copy passes the paper sensor, the wheel drive
motor turns on and advances the bins one step.
There are no limits on the number of copies that can be entered up to the full
99 copy limit of the copier. However, the physical capacity of the bins is a
good deal less. (See “Bin Capacity” in the specifications.)
When all 20 bins have been used, the wheel drive motor turns on until all the
bins have been lowered (including the proof tray). At the same time, the Max
indicator blinks.
8-4