Ricoh Mp C3000 Service Manual

							 
SM 3-41 B230/B237/D042 
Replacement 
Adjustment 
3.7.4  TONER SUPPLY TUBE FAN 
 
1.  Rear cover (
 Rear Cover) 
2.  High voltage supply board bracket (
  High Voltage Supply Board Bracket) 
3.  Toner supply tube fan duct [A] (
 x 3,  x 1,  x 1) 
4.  Split the fan duct (4 hooks). 
5.  Toner supply tube fan [B] 
When reinstalling the toner supply tube fan 
Make sure that the toner supply tube fan is installed with its decal facing to the rear of the 
machine. 
3.7.5  TONER PUMP UNIT 
There are four pump units inside the machine.  This procedure describes the replacement 
procedure only for one unit. If you need to  replace another unit, do the same as this 
procedure. 
 
ƒ  Put some sheets of paper on the floor  before doing this procedure. Toner may fall 
on the floor.  
						

							 
B230/B237/D042 3-42 SM 
 
1.  Front door (
 Rear Cover) 
2.  Image transfer belt unit (
  Image Transfer Belt) 
3.  All PCUs (
 PCU)  
4.  Put a sheet of paper (A3/DLT) inside the machine as shown and on the floor.   
 
ƒ  The sheet of paper on the floor is used in a later step. 
 
5.  Release the harness [A] from the clamp (
  x 1 for YCM,   x 3 for K) and hook, 
and then disconnect the harness. 
 
ƒ  Avoid touching these spring terminals [B]. 
6.  Release the toner supply tube [C].  
						

							 
SM 3-43 B230/B237/D042 
Replacement 
Adjustment 
 
7.  Remove the toner pump unit [D] (
 x 2) 
 
Make sure that a sheet of p aper is attached to the frame of  the rear side and covers the 
four gears. The picture on the left shows a sheet of paper that is correctly set, but the 
picture on the right show s a sheet of paper that is not co rrectly set. This sheet of paper 
prevents toner and screws from falling into  the laser optics housing unit through 
cutouts. 
 
8.  Slowly remove the toner supply tube [E] from the toner pump unit by pulling the  
						

							 
B230/B237/D042 3-44 SM 
tube right and left.   
9.  Turn up the openings of the toner pump  unit and toner supply tube just after 
removing the tube. 
 
ƒ  If not, the toner may scatter away and fall down.   
 
10.  Put the toner pump unit on the sheet of paper, which has been put in step 4, with  its opening [F] up. 
 
11.  Keep the opening [G] of the toner supply tube up, and then clip the opening of 
the toner supply. 
When you install the new toner pump unit 
Before installing the new toner pump unit, ma sk the opening of the old toner pump unit with 
tape. Dispose of it following local rules.  
						

							 
SM 3-45 B230/B237/D042 
Replacement 
Adjustment 
 
1.  Put a sheet of paper (A3/DLT) inside the machine. 
2.  Turn up the opening of the toner supply tube, and then remove the object that 
was used to clip the opening of the toner supply tube. 
3.  Insert the opening of the toner pump unit [A] into the opening of the toner  supply tube [B] as far as possible. 
 
4.  Connect the harness [C] to the connector of the machine. 
 
ƒ  On the above picture, the magnified  picture of the connector shows the 
easiest way to connect it. 
5.  Clamp the harness [C] (
  x 1 for YCM,   x 3 for K). 
  
						

							 
B230/B237/D042 3-46 SM 
ƒ  Avoid touching these spring terminals [D]. 
 
6.  Pass the harness of the toner pump unit  behind the hook [E], while pressing at 
[F].  
7.  Secure the toner supply tube with the hol der [G], lifting up the edge of the holder 
very gently.   
 
ƒ  Be careful when you lift the edge of the holder, because t he holder is easily 
broken. 
 
8.  Insert the toner pump unit [H] into the rear frame of the machine (
 x 2).  
						

							 
SM 3-47 B230/B237/D042 
Replacement 
Adjustment 
3.7.6  TONER END SENSOR 
 
1.  Rear cover (
 Rear Cover) 
2.  Controller box (
 Controller Box) 
3.  Toner end sensor [A] (
  x 1, 2 hooks each)  
						

							 
B230/B237/D042 3-48 SM 
3.8 IMAGE TRANSFER 
3.8.1  IMAGE TRANSFER BELT UNIT 
 
1.  Open the right door. 
2.  Open the front door   
3.  Open the drum positioning plate. (
 PCU) 
4.  Turn the image transfer belt  unit lock lever [A] counterclockwise. 
5.  Pull out the image transfer belt unit [B] halfway. 
 
6.  Grasp the handles [C], and then pull out the image transfer belt unit fully.  
						

							 
SM 3-49 B230/B237/D042 
Replacement 
Adjustment 
3.8.2 IMAGE TRANSFER  BELT CLEANING UNIT 
 
1.  If you will install a new belt cleaning unit, then set SP 3902-015 to 1. 
 
ƒ  If you do this, then the machine will rese t the PM counter for the belt cleaning 
unit automatically, after you turn the power on again. 
Do not use SP3902-015 or 013 if you replace the complete ITB unit. 
2.  Turn off the main power switch. 
3.  Open the right door. 
4.  Open the front door   
5.  Open the drum positioning plate. (
 PCU) 
6.  Loosen the screw [A]. 
7.  Turn the lock lever [B] clockwise 
8.  Pull out the image transfer belt cleaning unit [C].  
						

							 
B230/B237/D042 3-50 SM 
3.8.3  IMAGE TRANSFER BELT 
 
1.  Image transfer belt cleaning unit (
  Image Transfer Belt Cleaning Unit) 
2.  Image transfer belt unit (
 PCU) 
3.  Turn the image transfer unit contact lever [A] counterclockwise (as seen from 
the rear). 
4.  Gear [B] (hook x 1) 
5.  Turn the gear cover [C] clockwise (as seen from the rear) (
  x 1) [D]. 
 
6.  Image transfer belt unit top cover [D] (
 x 6). 
[ D ]