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Ricoh Mp C3000 Service Manual

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SM 3-11 B230/B237/D042 
Replacement 
Adjustment 
matches that of level 10 on 
the C-4 chart. 
2  Middle (Middle 
ID) (K) 
  Adjust the offset value so 
that the density of level 6 
matches that of level 6 on 
the C-4 chart. 
3 
Shadow (High ID) 
(K) 
  Adjust the offset value so 
that the density of level 8 
matches that of level 8 on 
the C-4 chart. 
4 
Highlight (Low 
ID) (K) 
  Adjust the offset value so 
that dirty background does 
not show on the copy and 
the density of level 3 is 
slightly lighter than that of 
level 3 on the C-4 chart. 
 
ƒ  Text parts of the test pattern cannot be  printed clearly after you adjust “shadow” as 
shown above. At this time, check if the 5  line/mm pattern at each corner is printed 
clearly. If it is not, adjust the offset  value of “shadow” again until it is. 
Printer Mode 
There are six adjustable modes (select these modes with printer SP1-102-001): 
ƒ  2400 x 600 photo mode 
ƒ  2400 x 600 text mode 
ƒ  1800 x 600 photo mode 
ƒ  1800 x 600 text mode 
ƒ  600 x 600 photo mode 
ƒ  600 x 600 text mode 
 
  K  C  M  Y 
Highlight 
Shadow  SP1-104-1 
SP1-104-2  SP1-104-21 
SP1-104-22  SP1-104-41 
SP1-104-42 SP1-104-61 
SP1-104-62 
Rev. 04/2007
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B230/B237/D042 3-12 SM 
Middle 
IDmax SP1-104-3 
SP1-104-4  SP1-104-23 
SP1-104-24  SP1-104-43 
SP1-104-44 SP1-104-63 
SP1-104-64 
 
- Adjustment Procedure -
 
1.  Do ACC for the printer mode. 
2.  Turn the main power off and on. 
3. Enter SP mode. 
4.  Select “Printer SP”. 
5.  Select SP1-102-001. Then select the necessary print mode to adjust. 
6.  Choose SP1-103-1 to print out a tone c ontrol test sheet if you want to examine 
the image quality for these settings. 
7.  Adjust the color density with SP1-104 as shown following table lists. Compare  the tone control test sheet with the C4 test chart. 
 
ƒ  Adjust the density in this order: “I D Max”, “Shadow”, “Middle”, “Highlight”. 
8.  Use SP1-105-001 to keep the adjusted settings. 
Horizontal Parallelism Adjustment 
1.  Access SP2-109 and print out test pattern 14 (1-dot trimming pattern). 
2.  Make sure the horizontal lines are parallel. 
“Parallel”: The gap between horizontal lines is 1.8 mm or less. 
3.  If the lines are not parallel, check the  following and apply corrections as necessary: 
•   Make sure the side fences are set  neatly against the sides of the paper. 
•   Make sure the PTR unit is c onnected to the bracket correctly. 
•   Make sure the shafts of the duplex unit are not bent nor damaged. 
4.  If the lines are still not pa rallel, do the following procedure: 
1)  Open the duplex unit. 
2)  Remove the fusing unit. 
3)  Open the front cover. 
4)  Open the drum positioning plate (1 screw). 
5)  Remove the ITB unit. 
6)  Remove front right cover (1 screw). 
7)  Remove the upper right front cover (1 screw). 
8)  Remove the upper right inner cover (2 screws). 
⇒
Rev. 04/2007
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SM 3-13 B230/B237/D042 
Replacement 
Adjustment 
5.  Loosen the 8 screws for the  front fusing guide plate [A]. 
6.  Remove the 2 screws for the levers of  the front fusing guide plate [B], [C]. 
NOTE:  You do not need to reattach these two screws after you finish this procedure. 
 
 
7.  If the horizontal lines slopes  down to the left
 (see illustration), move the front fusing 
guide plate upward. To do this, turn both  levers of the front fusing guide plate 
clockwise
.  
IMPORTANT : Turn both levers in the same dire ction. If you do not, the fusing belt 
may be damaged. 
 
 
 
 
 
8.  If the horizontal lines slopes  down to the right, move the front fusing guide plate 
downward. To do this, turn both leve rs of the front fusing guide plate 
counterclockwise
.  
IMPORTANT:  Turn both levers in the same dire ction. If you do not, the fusing belt 
may be damaged. 
9.  Retighten the 8 screws for the front fusing guide plate. 
10.  Print out the test pattern and check the image quality. 
11.  If the symptom still occu rs, repeat the above steps. 
Paper feed direction The horizontal line slopes 
down to the left. 
[A]  [C] 
[B] 
Rev. 04/2007
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B230/B237/D042 3-14 SM 
3.4 EXTERIOR COVERS 
3.4.1 FRONT DOOR 
 
1.  Open the front door [A]. 
 
2.  Remove the two pins [B], and then remove the front cover.
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SM 3-15 B230/B237/D042 
Replacement 
Adjustment 
3.4.2 LEFT COVER 
 
1.  Left cover [A] (
 x 6) 
3.4.3 REAR COVER 
 
1.  Rear cover [A] (
 x 7)
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B230/B237/D042 3-16 SM 
3.4.4  RIGHT REAR COVER 
 
1.  Rear cover [A] (
 x 7) 
2.  Open the right door [B]. 
3.  Right rear cover [C] (
 x 1) 
3.4.5 OPERATION PANEL 
 
1.  Top left front cover [A] (
 x 2) 
2.  Open the right door. 
3.  Front right cover [B] (
 x 1) 
4.  Top front cover [C] (
 x 2) 
5.  Operation panel [D] (
 x 2,  x 1)
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SM 3-17 B230/B237/D042 
Replacement 
Adjustment 
3.4.6 DUST FILTER 
 
1.  Dust filter cover [A] 
2.  Two dust filters [B]
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B230/B237/D042 3-18 SM 
3.5 SCANNER UNIT 
3.5.1 EXPOSURE GLASS 
 
1.  Glass cover [A] (
x 4) 
2.  ARDF exposure glass [B]   
3.  Rear scale [C] (
 x 3) 
4.  Exposure glass with left scale [D] 
 
ƒ  Position the white marker [E] at the rea r-left corner and the blue marker at the 
front-left corner when you reattach the ARDF exposure glass.
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SM 3-19 B230/B237/D042 
Replacement 
Adjustment 
3.5.2  ORIGINAL LENGTH/WIDTH SENSORS 
 
1.  Exposure glass with left scale (
 Scanner Unit) 
2.  Original length sensor bracket [A] (
 x 1,  x1) 
3.  Original length sensors [B] (snap, 
  x 1 each) 
4.  The number of the original length sens ors depends on the model; 3 for EU, 2 for 
others. 
5.  Original width sensors [C] (snap, 
 x 1,  x1 each) 
3.5.3 EXPOSURE LAMP 
 
1.  Rear cover (
 Rear Cover) 
2.  Operation panel (
 Operational Panel) 
3.  Exposure glass (
 Exposure Glass) 
4.  Scanner rear cover [A] (
 x 1) 
5.  Scanner left cover [B] (
 x 2) 
6.  Scanner right cover [C] (
 x 2)
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B230/B237/D042 3-20 SM 
 
7.  Operation panel bottom cover [D] 
8.  Operation panel support brackets [E] (
  x 2 each) 
9.  Scanner left stay [F] (
 x 2) 
10.  Scanner front frame [G] (
 x 6) 
 
11.  Scanner rear frame [H] (
 x 9,  x 1) 
12.  Disconnect the exposure lamp cable  [I] from the lamp stabilizer (
 x 2).
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