Ricoh Mp C3000 Service Manual

Detailed Section Descriptions 
SM 15 B792 
B792 
Finisher 
2.2   DETAILED SECTION DESCRIPTIONS 
2.2.1  OUTPUT TRAY MECHANISM 
Stack Height Detection 
 
Stack height detection lever [A]: Driven  by stack height lever solenoid [B].  
Two sensors detect the height of the stack in the output tray: the stack height [C] and lever 
[D] sensors. 
Stack height sensor  Lever 
sensor  Status
 
Off Off  The stack height is below the target. The output tray 
is then lifted to t
he target position. 
Off  On  Target...

Detailed Section Descriptions 
B792 16  SM 
Output Tray Up/Down Mechanism 
 
Overview  
The output tray motor gear [A] lifts/lowers the tray if the stack height is not at the target 
position.  
Gears [B] and [C] keep the angle of the tr ay constant at any tray position. 
Output Tray Downward Movement  
The top of the paper stack is checked afte r every page (or set of pages) has been fed out. 
If the top of the stack is higher than the target  level, the output tray motor moves the tray 
down. 
When the...

Detailed Section Descriptions 
SM 17 B792 
B792 
Finisher 
2.2.2 PAPER FEED 
 
When a sheet of paper is fed, it is transpor ted through the 500-sheet finisher as shown in 
these drawings. 
To feed paper straight through the finisher, the pick-up roller [A] stays up.  
To send the paper to the jogger tray [B], when  the trailing edge is almost out of the finisher, 
the pick-up roller moves down until the reverse/ exit roller in the pick-up roller pushes the 
paper against the paddle roller [C]. The revers...

Detailed Section Descriptions 
B792 18  SM 
2.2.3 JOGGER MOVEMENT 
 
The jogger tray unit consists of the front [A ] and rear [B] jogger fences, two jogger motors 
[C] and two jogger fence HP sensors [D].  
Standby mode:   
The jogger fences are pl aced at home position. 
Sort mode:  
The joggers move alternate sets to the front  and rear, to separate the sets for the users. 
At the start of the job, the jogger f ences move to the front and rear sides. 
When the first set of the job is fed to the jo gger...

Detailed Section Descriptions 
SM 19 B792 
B792 
Finisher 
2.2.4  STAPLER UNIT MOVEMENT 
Overview 
 
The stapler unit [A] is driven by the stapler  unit movement motor [B]. The stapler unit HP 
sensor [C] detects when the stapler is at hom e position. The stapler unit stays at its home 
position in stand-by mode. 
This finisher has three types of stapling.  The stapler unit moves as shown: one staple at 
the rear corner [D], one staple at the  front corner [E] and two staples [F].  

Detailed Section Descriptions 
B792 20  SM 
Disabling the Stapling Mechanism 
 
The stapler unit moves from front to rear. Bu t there are three end fences [A] on the jogger 
tray unit in the stapler unit path. In order not  to staple these fences, the stapler unit has the 
end fence detection sensor [C]. When the stapl er unit passes the end fence, the end fence 
pushes the actuator [B], and  then the sensor detects the end fence. While this sensor 
detects the end fence, st apling is disabled.  
2.2.5...

Detailed Section Descriptions 
SM 21 B792 
B792 
Finisher 
2.2.6 ERROR DETECTION 
  Conditions 
Jogger motor error  The jogger home position sens
or does not shut off after 
the jogger motor starts. 
Jogger motor home position 
detection error  The jogger home position sens
or does not turn on after 
paper shifting. 
Stapler error  The stapler home position sensor (inside the stapler unit) 
does not turn on after stapling. 
Output tray upper limit error  The tray
 upper limit sensor is activated. 
Output...

 
BOOKLET FINISHER B793 
 
BOOKLET FINISHER SR3000 REVISION HISTORY 
Page Date  Added/Updated/New 
      None