Ricoh Mp C3000 Service Manual

							 
SM 3-51 B230/B237/D042 
Replacement 
Adjustment 
 
7.  Three stays [E] (
 x 6) 
 
8.  Guide plate [F] (as seen from the right side of the machine) (
 x 2) 
 
9.  Remove the two screws and then rear hold bracket [G] (as seen from the rear).  
						

							 
B230/B237/D042 3-52 SM 
 
10.  Remove the two screws and then front hold bracket [H] (as seen from the front). 
 
11.  Put the front side of the image transfer belt unit on a corner of the table or a box  as shown. 
 
12.  Pull the tension roller [I] as shown.  
						

							 
SM 3-53 B230/B237/D042 
Replacement 
Adjustment 
 
13.  Image transfer belt [J] 
When reinstalling the image transfer belt 
ƒ  Clean all rollers with dry cloth before installing the image transfer belt. 
 
ƒ  Make sure that the tape [A] inside the  front or rear edge of the image transfer belt 
catches the rim [B] of the tension ro ller or image transfer belt drive roller. 
ƒ  There is a rim at each edge of  the transfer belt. All the rollers in the transfer belt unit 
must be between the two rims. 
 
ƒ  Two tapes (width [C]: about 
5 mm) are attached inside 
the front and rear edge of 
the image transfer belt.   
⇒ 
Rev. 03/2007 
						

							 
B230/B237/D042 3-54 SM 
ƒ  This belt must be installed the correct way around. When you reinstall the image 
transfer belt unit, install it with the painted  number [D] on the belt at the rear side of the 
unit. 
 
ƒ  Put Lubricant Powder (B132 9700) on the su rface of the image transfer belt [A], while 
you turn the drive gear [B] at a constant  speed, as shown. (The straight arrow in the 
picture shows belt movement direction.)  Lubricant powder prevents the image transfer 
cleaning blade from turning up.   
 
ƒ  Do not put the lubricant  powder at the right side of the image transfer belt unit 
(the above picture is taken from the  rear). Otherwise, lubricant powder may 
damage the encoder sensor.    
						

							 
SM 3-55 B230/B237/D042 
Replacement 
Adjustment 
3.9 PAPER TRANSFER 
3.9.1  PAPER TRANSFER ROLLER UNIT 
If you will install a new paper transfer unit, then set SP 3902-016 to 1. 
 
ƒ  If you do this, then the machine will reset the PM counter for the paper transfer unit 
automatically, after you turn the power on again. 
 
1.  Open the right door. 
2.  Release the two locks [A]. 
3.  Paper transfer roller unit [B] 
3.9.2  PAPER TRANSFER UNIT 
If you will install a new paper transfer unit, then set SP 3902-016 to 1. 
 
ƒ  If you do this, then the machine will reset the PM counter for the paper transfer unit 
automatically, after you turn the power on again. 
1.  Turn off the main power switch.  
						

							 
B230/B237/D042 3-56 SM 
 
2.  Open the right door. 
3.  Remove the clip ring [A]. 
4.  Move the vertical transport unit to the left side with lever Z [B]. 
 
5.  Remove the pin [C], and then  remove the harness cover [D]. 
6.  You do not need to remove the pin bushing [E] from the harness cover. 
 
7.  Disconnect the connector [F ] and release the clamp [G].  
						

							 
SM 3-57 B230/B237/D042 
Replacement 
Adjustment 
 
8.  Remove the bushing [H] (
 x 1). 
 
9.  Slide up the paper transfer unit [I], and then remove it. 
3.9.3  ID SENSOR BOARD 
 
1.  K PCU (
 PCU) 
2.  Rear cover (
 Rear Cover)  
						

							 
B230/B237/D042 3-58 SM 
3.  Right rear cover (  Right Rear Cover) 
4. Duplex unit (
 Duplex Unit) 
5. Fusing unit (
 Fusing Unit) 
6.  Image transfer belt unit (
  Image Transfer Belt Unit) 
7.  ID sensor unit [A] (
 x 2,  x 2,  x 1) 
8.  ID sensor board [B] (
 x 6) 
Cleaning for ID sensors 
ID sensors require a cleaning procedure every  320K. Do the following steps for ID sensor 
cleaning. 
 
1.  K PCU (
 PCU) 
2. Fusing unit (
 Fusing Unit) 
3.  Image transfer belt unit (
  Image Transfer Belt Unit) 
4.  Slide the ID sensor shutter [A] to the left side. 
5.  Clean the ID sensors keeping the ID sensor shutter to the left. 
After installing a new ID sensor unit/board   
Do the following adjustment after installing a new ID sensor unit/board. 
1.  Plug in and turn on the main power switch of the copier. 
2.  Enter the SP mode. 
3.  Input all correction coefficients [A] for  the ID sensor with the SP modes referring 
to the barcode sheet provided with the new ID sensor unit/board. 
 
ƒ  For example, input  1.00 with SP3-362-013.   
4.  Exit the SP mode.  
						

							 
SM 3-59 B230/B237/D042 
Replacement 
Adjustment 
  
						

							 
B230/B237/D042 3-60 SM 
3.10 DRIVE UNIT 
 
The drawing above shows the drive unit layout. 
 
1. Fusing/paper exit motor 
2. ITB drive motor 
3. Paper transfer contact motor 
4. Registration motor 
5. Paper feed motor 
6. Paper feed clutch – Tray 2  7. Paper feed clutch – Tray 1 
8. Drum/Development drive motor-K 
9. Development drive motor-CMY 
10. Toner transport motor 
11. Image transfer belt contact motor 
12. Drum drive motor-CMY 
 
There are some motors and clutches, which are not shown in the above drawing: 
ƒ  Tray lift motor 1 and 2 
ƒ  Duplex inverter motor 
ƒ Duplex/By-pass Motor  ƒ Shutter motor 
ƒ Development clutch