Ricoh Mp C3000 Service Manual

Exit Guide Plate, Paper Feed Out 
SM 47 B793 
B793 
Booklet 
Finisher 
2.7  EXIT GUIDE PLATE, PAPER FEED OUT 
 
The exit guide plate [A] opens  when a stapled stack is fed out. 
Also it opens every time a sheet is fed to the  staple tray, to prevent the paper running into 
the exit roller during stacking. 
The exit guide plate motor [B] drives the exit  guide plate. The exit guide plate HP sensor [C] 
detects when the guide plat e is at home position. 
The stack feed-out belt feeds out stapled stacks ....

Stapler Unit Movement 
B793 48  SM 
2.8  STAPLER UNIT MOVEMENT 
 
The machine has only one stapler [A]. It does  stapling for booklets and for corner stapling. 
The stapler unit motor [B] moves the stapler fr om side to side. The stapler unit HP sensor 
[C] detects when the stapler unit is at home position. 
In corner staple mode, at the start of the j ob, the stapler moves to the position where the 
stapler will be inserted. 
In booklet mode, at the start of a job, the  stapler moves to a starting...

Stacking for Booklet Stapling 
SM 49 B793 
B793 
Booklet 
Finisher 
2.9  STACKING FOR BOOKLET STAPLING 
2.9.1 OVERVIEW 
There are two stoppers near the stapler unit. T hese stoppers hold the stack of paper in the 
correct position during stacking. 
The stoppers are called ‘stopper S’ and ‘stopper  L’. Stopper S is used for legal size paper, 
or shorter than 8.5 x 14 inches. Stopper L is  used for paper that is longer than 8.5 x 14 
inches. 
 
ƒ  In corner stapling mode, the pawl on t he stack feed-out...

Stacking for Booklet Stapling 
B793 50  SM 
 
When the stack is complete, stopper S moves away [D], and the machine feeds the stack to 
the correct position for stapling. To do this, the upper clamp roller motor [E] rotates the 
upper clamp roller. 
2.9.3  LONGER THAN 8.5 X 14 INCHES 
 
At the start of the set, the stapler moves to the  center position. At this position, a bracket [A] 
on the stapler unit pushes stopper L [B]. The  pawl [C] on the stopper L assembly then 
moves into position to catch the...

Stacking for Booklet Stapling 
SM 51 B793 
B793 
Booklet 
Finisher 
previous section). 
When the stack is complete, the stapler mo ves to the rear-side position, and stopper L 
moves away. The machine feeds the stack  to the correct position for stapling.  

Moving the Stack to the Folding Position 
B793 52  SM 
2.10  MOVING THE STACK TO THE FOLDING POSITION 
 
First, the upper clamp roller feeds the sta ck down after the stack has been stapled. When 
the lower clamp roller [A] catches the stack,  the upper clamp roller stops, and the lower 
clamp roller feeds the stack down. 
The lower clamp roller is released just befor e the leading edge of the stack reaches the 
bottom fence [B] (this fence cons ists of two pawls that catch the paper). The bottom fence...

Folder 
SM 53 B793 
B793 
Booklet 
Finisher 
2.11 FOLDER 
2.11.1 OVERVIEW 
The fold plate pushes the stack into the nip bet ween the fold rollers. The fold rollers feed 
out the stack, then reverse to feed it back in agai n. Then, the fold rollers feed the stack out 
of the folder, to the booklet tray. 
2.11.2 FOLD PLATE 
 
[A]: Bottom Fence Stack Stoppers. Catches t he stack after it is released by the clamp 
rollers. 
[B]: Fold Plate Motor. Drives the timing  belt and gears that move the fold plate....

Folder 
B793 54  SM 
2.11.3 FOLD ROLLERS 
 
[F]: Fold Roller Motor. Drives forward to  feed out the stack at the fold, and then drives 
forward again to feed out the folded stack.  
 
ƒ  This cycle can be repeated by  changing the setting of SP6136.  
[G]: Fold Rollers. Driven by the fold roller motor,  this roller pair feeds out the stack at its fold, 
reverses to feed in the stack to, and then feeds  forward again (assisted by the fold unit exit 
rollers – not shown) to feed out the stack to the lower...

Punch Unit 
SM 55 B793 
B793 
Booklet 
Finisher 
2.12 PUNCH UNIT 
2.12.1  OVERVIEW OF OPERATION 
Skew Correction Before Punching 
 
The finisher entrance roller corrects for  paper skew and then the punch unit moves across 
to punch the holes at the  correct position. Each sheet is punched one at a time. 
Paper feeds out of the copier. The finisher  entrance sensor [A] detects the leading edge of 
the sheet. 
The finisher entrance roller [B] stops rotating br iefly while the copier exit rollers continue...

Punch Unit 
B793 56  SM 
Punch Unit Position Correction 
 
These operations (skew correction before pu nching, and punch unit position correction) 
increase the accuracy of the punch alignment. 
  
The trailing edge of the sheet passes  the finisher entrance sensor [A]. 
The paper position slide unit moves the paper po sition sensor [B] forward to the edge of the 
paper. 
The paper position sensor detects  the position of the paper edge and sends this information 
to the punch unit board. The machine...