Ricoh B230 Service Manual

							 
SM 3-23 B230/B237 
Replacement 
Adjustment 
ƒ  SP4–688 (DF: Density Adjustment): Use this to adjust the density level if the ID of 
outputs made in the DF and Platen mode is different. 
3.5.6  EXPOSURE LAMP STABILIZER 
 
1.  Rear cover (
 Rear Cover) 
2.  Exposure lamp stabilizer [A] (
 x 2,  x 2) 
3.5.7  FRONT SCANNER WIRE 
 
1.  Exposure glass (
 Exposure Glass) 
2.  Front frame (
 Exposure Lamp) 
3.  Front scanner wire clamp [A] 
4.  Front scanner wire bracket [B] (
 x 1) 
5.  Front scanner wire and scanner drive pulley [C] (
 x 1)  
						

							 
B230/B237 3-24  SM 
Reinstalling the Front Scanner Wire 
 
1.  Position the center ball [A] in the middle of the forked holder. 
2.  Pass the right end (with the ball) [B] through the square hole. Pass the left end 
(with the ring) [C] through the notch. 
3.  Wind the right end counterclockwise (shown from the machine’s front) five times. 
Wind the left end clockwise twice.   
 
ƒ  The two red marks [D] come together when you have done this. Stick the wire 
to the pulley with tape. This lets you easily handle the assembly at the time of 
installation. 
 
4.  Install the drive pulley on the shaft [E]. 
  
						

							 
SM 3-25 B230/B237 
Replacement 
Adjustment 
ƒ  Do not attach the pulley to the shaft with the screw at this time. 
5.  Insert the left end into the slit [F]. The end should go via the rear track of the left 
pulley [G] and the rear track of the movable pulley [H]. 
 
6.  Hook the right end onto the front scanner wire bracket [I]. The end should go via 
the front track of the right pulley [J] and the front track of the movable pulley [K]. 
 
ƒ  Do not attach the scanner wire bracket with the screw at this time. 
 
7.  Remove the tape from the drive pulley. 
8.  Insert a scanner-positioning pin [L] through the 2nd carriage hole [M] and the 
left holes [N] in the front rail. Insert another scanner positioning pin [O] through  
						

							 
B230/B237 3-26  SM 
the 1st carriage hole [P] and the right holes in the front rail [Q]. 
9.  Insert two more scanner positioning pins through the holes in the rear rail. 
10.  Screw the drive pulley to the shaft [R]. 
11.  Screw the scanner wire bracket to the front rail [S]. 
12.  Install the scanner wire clamp [T]. 
13.  Pull out the positioning pins.   
 
ƒ  Make sure the 1st and 2nd carriages move smoothly after you remove the 
positioning pins. Do steps 8 through 13 again if they do not. 
3.5.8 REAR SCANNER WIRE 
Reinstalling the Rear Scanner Wire 
 
1.  Position the center ball [A] in the middle of the forked holder. 
2.  Pass the left end (with the ball) [B] through the drive pulley notch. Pass the right 
end (with the ring) [C] through the drive pulley hole.   
3.  Wind the left end [B] clockwise (shown from the machine’s front) five times. 
Wind the right end [C] counterclockwise three times. 
 
ƒ  The two red marks [D] come together when you do this. Attach the wire to the 
pulley with tape. This lets you easily handle the assembly at the time of 
installation. 
4.  Install the drive pulley on the shaft. 
 
ƒ  Do not attach the pulley on the shaft with the screw at this time. 
5. Install the wire.  
 
ƒ  The winding of the wire on the three pulleys at the rear of the scanner should  
						

							 
SM 3-27 B230/B237 
Replacement 
Adjustment 
be the same as the winding on the three pulleys at the front. This must show 
as a mirror image. 
Example: At the front of the machine, the side of the drive pulley with the three 
windings must face the front of the machine. At the rear of the machine, it must face 
the rear. 
6.  Do steps 7 through 13 again in the “” Section. 
3.5.9  TOUCH PANEL POSITION ADJUSTMENT 
 
ƒ  It is necessary to calibrate touch panel at the following times: 
ƒ  When you replace the operation panel. 
ƒ  When you replace the controller board. 
ƒ  When the touch panel detection function does not operate correctly 
Do not use items [2] to [9] on the Self-Diagnostic Menu. These items are for design use 
only. 
1. Press 
, press , press   5 times to open the Self-Diagnostics 
menu. 
 
2.  On the touch screen press “Touch Screen Adjust” (or press 
). 
3.  Use a pointed (not sharp) tool to press the upper left mark 
. 
 
4.  Press the lower right mark when “
” shows. 
5.  Touch a few spots on the touch panel to make sure that the marker “+” shows 
exactly where the screen is touched. 
6.  Press Cancel. Then start from Step 2 again if the “+” mark does not show where 
the screen is touched. 
7.  Press [#] OK on the screen (or press 
) when you are finished.  
						

							 
B230/B237 3-28  SM 
8.  Touch [#] Exit on the screen to close the Self-Diagnostic menu. Save the 
calibration settings.    
						

							 
SM 3-29 B230/B237 
Replacement 
Adjustment 
3.6 LASER OPTICS 
 
ƒ  Turn off the main switch and unplug the machine before beginning any of the 
procedures in this section. Laser beams can cause serious eye injury. 
3.6.1  CAUTION DECAL LOCATION 
Caution decals are placed as shown below. 
 
 
ƒ  Be sure to turn off the main switch and disconnect the power plug from the power 
outlet before beginning any disassembly or adjustment of the laser unit. This 
copier uses a class IIIb laser beam with a wavelength of 655 nm and an output of 7 
mW. The laser can cause serious eye injury. 
3.6.2  LASER OPTICS HOUSING UNIT 
 
ƒ  Before installing a new laser optics housing unit, remove the sponge padding and 
the tag from the new unit. 
 
ƒ  A new laser optics housing unit has a bracket to protect the LD units. When you 
replace the laser optics housing unit, use caution.  
						

							 
B230/B237 3-30  SM 
Preparing the new laser optics housing unit 
 
1.  Shutter [A] of the laser optics housing unit (
 x 3) 
 
2.  Polygon motor cover [B] of the laser optics housing unit (
 x 4) 
3.  Sponge padding [C] 
4. Tag [D] 
5.  Reinstall the polygon motor cover [B]. 
Before removing the old laser optics housing unit 
Do the following settings before removing the laser optics housing unit. These are 
adjustments for skew adjustment motors in the laser optics housing unit. 
1.  Plug in and turn on the main power switch of the copier. 
2.  Enter the SP mode. 
3.  Execute SP9511-001 to clear the WTL positioning motor setting for Magenta. 
4.  Execute SP9511-002 to clear the WTL positioning motor setting for Cyan. 
5.  Execute SP9511-003 to clear the WTL positioning motor setting for Yellow. 
6.  Exit the SP mode.  
						

							 
SM 3-31 B230/B237 
Replacement 
Adjustment 
7.  Turn off the main power switch and disconnect the power cord of the copier. 
Recovery procedure for SC285 and no replacement preparation of 
laser optics housing unit 
If SC285 occurs or 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 removing the old laser optics housing unit. 
5.  Connect the harness [A] and reinstall 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)  
						

							 
B230/B237 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)