Ricoh Mp C3000 Service Manual

							 
SM 3-31 B230/B237/D042 
Replacement 
Adjustment 
7.  Turn off the main power switch and disconnect the power cord of the copier. 
Recovery procedure for omitting the “Before removing the old laser 
optics housing unit” procedure (See page 3-30) 
If you did not do the procedure in ‘Before removing the old laser optics housing’ before 
removing the old laser optics housing unit, you must do the following. 
1.  Turn off the main power switch and disconnect the power cord of the copier. 
2.  Remove the left cover and harness cover bracket (see the following Removing the old 
laser optics housing unit) 
 
3.  Disconnect the harness [A] of  the skew correction motor. 
4.  Do steps 1 to 7 of Before remo ving the old laser optics housing unit. 
5.  Connect the harness [A] and reinsta ll the harness bracket and left cover. 
6.  Plug in and turn on the main power switch.   
Removing the old laser optics housing unit 
 
1.  Left cover [A] (
 x 6) 
⇒
Rev. 03/2007 
						

							 
B230/B237/D042 3-32 SM 
 
2.  Harness cover bracket [B] (
 x 4). 
 
3.  Rear fan bracket [C] for the laser housing optics unit (
 x 3,  x 7) 
4.  Front fan bracket [D] for the laser housing optics unit (
 x 2) 
 
5.  Remove the old laser optics housing unit [E] (
 x 2,  x 2)  
						

							 
SM 3-33 B230/B237/D042 
Replacement 
Adjustment 
Installing a new Laser Optics Housing Unit 
 
ƒ  A new laser optics housing unit has a bra cket to protect the LD units. When you 
replace the laser optics h ousing unit, use caution. 
 
1.  Push the new laser optics housing unit [A] slowly into the copier until the 
bracket [B] bumps against the frame of the copier. 
2.  Remove the bracket [B], and then push the new laser optics housing unit fully 
into the copier (
 x 2, All x ). 
3.  Reassemble the machine. 
After installing the new laser optics housing unit 
Do the following adjustment after installing the new laser optics housing unit.   
1.  Plug in and turn on the main power switch. 
 
2.  Adjust the main scan magnification only for black (Bk). 
1.  Input the standard value [A] provided wi th a new laser optics housing unit for the  
						

							 
B230/B237/D042 3-34 SM 
main scan magnification adjustment with SP2-185-001. 
 
ƒ  The value [A] is different for each laser optics housing unit. 
2.  Print the test pattern (14: 1-dot trimming pattern in the SP2-109-003). 
3.  Check that the left and right trim marg in is within 4 ± 1 mm. If not, change the 
standard value for the main scan magnification adjustment. 
3.  Adjust the main scan registration only for the black (Bk).  1.  Input the registration value [B] provided  with a new laser optics housing unit for the 
main scan registration adjustment with SP2101-001. 
 
ƒ  The value [B] is different for each laser optics housing unit. 
2.  Print the test pattern (14: 1-dot trimming pattern in the SP2-109-003). 
3.  Check that the left trim margin is within 2 ± 1 mm. If not, change the registration  value for the main scan registration adjustment. 
4.  Select 0 with SP2-109-003 after printing the 1-dot trimming pattern. 
5.  Do the line position adjustment.  1.  First do SP2-111-3.   
2.  Then do SP2-111-1. 
To check if SP 2-111-1 was successful,  watch the screen during the process. A 
message is displayed at the end. Also, you can check the result with SP 2-194-10 
to -12. 
6.  Exit the SP mode. 
3.6.3  POLYGON MIRROR MOTOR 
 
1.  Laser optics housing unit (
  Laser Optics Housing Unit) 
2.  Shutter [A] of the laser housing optics unit (
 x 3) 
⇒ 
						

							 
SM 3-35 B230/B237/D042 
Replacement 
Adjustment 
 
3.  Polygon mirror motor cover [B] of the laser optics housing unit (
 x 4) 
4.  Polygon mirror motor holder [C] (
 x 2) 
5.  Polygon mirror motor [D] (
 x 4,  x 1) 
After installing the laser optics housing unit: 
1.  Do the Forced Line Position Adj. Mode c (SP2-111-3).   
2.  Then do the Forced Line Position Adj. Mode a (SP2-111-1). 
To check if SP 2-111-1 was successful, wa tch the screen during the process. A message is 
displayed at the end. Also, you can check  the result with SP 2-194-10 to -12. 
6.  After you replace the housing unit, do the adjustments in the following section  of the manual: Image Adjustment – Registration. 
⇒ 
Rev. 03/2007 
						

							 
B230/B237/D042 3-36 SM 
3.7 IMAGE CREATION 
3.7.1 PCU 
 
ƒ  Do not touch the OPC drum. Do not le t metal objects touch the development 
sleeve. 
 
1.  Open the front door. 
2.  Lever lock [A] (
 x 1) 
3.  Turn the release lever [B] and the  image transfer unit contact lever [C] 
counter-clockwise. 
4.  Open the drum positioning plate [D]. 
 
5.  Pull out the PCU (hold the grip while you pull it out) [E]. 
3.7.2  DRUM UNIT A ND DEVELOPMENT UNIT 
The new drum unit has a front cover and a front  joint. When you attach the new drum unit 
to the development unit, remove a front cover and a front joint at first.  
						

							 
SM 3-37 B230/B237/D042 
Replacement 
Adjustment 
And use them for reassembling the  new drum unit and development unit. 
1.  If you install a new drum unit, set SP 3902-xxx to 1.  Black: 3902-009 
Yellow: 3902-010 
Cyan: 3902-011 
Magenta: 3902-012 
 
ƒ  If you do this, then the machine will reset the PM counter for the drum unit 
automatically, after you turn the power on again. 
 
2.  Turn the machine power off. 
3. PCU (
 PCU) 
4.  Front cover [A] (
 x 2) 
 
 
ƒ  Do not touch the bearing [B] after re moving the front cover. The bearing is 
properly applied with lubricant.  
						

							 
B230/B237/D042 3-38 SM 
 
Note: Remove the toner duct [G] first to avoid breaking it during this procedure . 
5.  Remove the bushing [C] of the developm ent roller at the rear of the PCU (
 x 1). 
 
6.  Remove the front joint [D] (
 x 1,  x 1). 
 
ƒ  The front joint [D] is firmly set. Remove it with a watchmaker’s or jeweller’s 
screwdriver. 
 
7.  Drum unit [E] and Development Unit [F] 
[ G ] 
						

							 
SM 3-39 B230/B237/D042 
Replacement 
Adjustment 
 
ƒ  When the development unit is remove d from the drum unit, clean the entrance 
mylar [G] with a vacuum.   
8.  If you change the development unit, do the ACC procedure. 
Developer 
 
1.  Set SP 3902-xxx to 1.  Black: 3902-005 
Yellow: 3902-006 
Cyan: 3902-007 
Magenta: 3902-008 
2.  Turn the machine power off. 
3.  Development unit (
  Drum Unit and Development Unit) 
4.  Hopper cover [A] (hook x 3) 
 
5.  Shake a bag of developer and pour it into the development hopper [B]. 
6.  Reattach the hopper cover (hook x 3) 
7.  Turn the machine power on. The machin e initializes the developer and resets the  
						

							 
B230/B237/D042 3-40 SM 
PM counter for the developer. (For details of the developer initialization result, 
see Developer Initialization Result  in the Troubleshooting chapter. 
8.  Do the ACC procedure. 
3.7.3 TONER COLL ECTION BOTTLE 
If you will install a new bottle, and the old bottle  is not in a full or near-full condition, then set 
SP 3902-017 to 1. 
 
ƒ  If you do this, then the machine will reset the PM counter for the bottle 
automatically, after you turn the power on again.   
ƒ  If the bottle is in a full or near-full c ondition, it is not necessary to do this. 
 
1.  Turn off the main power switch. 
2.  Open the front door and remove the screw [A]. 
3.  Close the front door. 
4.  Pull out tray 1 [B]. 
5.  Open the toner collection bottle door [C]. 
6.  Pull out the toner collection bottle [D]. 
 
ƒ  Remove the cap [E], and then attach the  cap on the opening of the toner collection 
bottle before taking it out.