Ricoh Mp C3000 Service Manual

							 
SM 3-1 B230/B237/D042 
Replacement 
Adjustment 
3.  REPLACEMENT AND ADJUSTMENT 
3.1 BEFOREHAND 
 
ƒ  Before installing options , please do the following: 
1.  If there is a fax unit in the machi ne, print out all messages stored in the 
memory, the lists of user-programmed  items, and the system parameter list. 
2.  If there are printer jobs in the machine, print out all jobs in the printer buffer. 
3.  Turn off the main switch and disconn ect the power cord, the telephone line, 
and the network cable.  
						

							 
B230/B237/D042 3-2 SM 
3.2 SPECIAL TOOLS 
Part Number Description  Q’ty 
B645 5010  SD Card  1 
B645 6705  PCMCIA Card Adapter 1 
B645 6820  USB Reader/Writer 1 
VSSM9000  Digital Multimeter – FLUKE87 1 
G021 9350 
Loop-back Connector – Parallel * NOTE  1 
C401 9503  20X Magnification Scope 
1 
A257 9300  Grease Barrierta – S552R  1 
5203 9502  Silicone Grease G-501 1 
A092 9503  C4 Color Test Chart (3 pcs/set)  1 
A006 9104  Scanner Positioning Pin (4 pcs/set) 1 
B679 5100  Plug - IEEE1284 Type C 1 
B132 9700  Lubricant Powder  1 
 
ƒ  The “Loop-back Connector–Parallel” requires the “Plug-IEEE1284 Type C”, and 
the optional IEEE1284 interface option must also be installed.  
						

							 
SM 3-3 B230/B237/D042 
Replacement 
Adjustment 
3.3 IMAGE ADJUSTMENT 
3.3.1 SCANNING 
Check the printing registration/side-to-side  adjustment and the blank margin adjustment 
before you do the followi ng scanner adjustments. 
 
ƒ  Use a S-2-1 test chart to  do the following adjustments. 
Scanner sub-scan magnification 
 
A: Sub-scan magnification 
1.  Put the test chart on the exposure glass. Then 
make a copy from one of the feed stations. 
2.  Check the magnification ratio. Adjust with  SP4-008 if necessary. 
Standard: ±1.0%. 
 
Scanner leading edge and side-to-side registration 
 
A: Leading Edge Registration 
1.  Put the test chart on the exposure glass. Then  make a copy from one of the feed stations. 
2.  Check the leading edge and side-to-side  registration. Adjust the following SP modes if 
necessary. Standard: 0 ± 2mm for the leading 
edge registration, 0 ± 2.5mm for the side-to-side 
registration.  
 
  SP mode 
Leading Edge Registration SP4-010-001 
Side-to-Side Registration SP4-011-001 
 
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Rev. 04/2007 
						

							 
B230/B237/D042 3-4 SM 
3.3.2 ARDF 
ARDF side-to-side, leading edge registration and trailing edge 
 
A: Leading edge registration 
Use A3/DLT paper to make a temporary test chart as shown above. 
1.  Put the temporary test chart on the ARDF. Then make a copy from one of the  feed stations. 
2.  Check the registration. Check the leadi ng edge and side-to-side registration. 
Adjust the following SP modes if necessar y. Standard: 4.2 ± 2 mm for the leading 
edge registration, 2 ± 1 mm for the side-to -side registration. Use the following SP 
modes to adjust if necessary. 
 
SP Code   What It Does  Adjustment Range  
SP6-006-001  Side-to-Side Registration  ± 3.0 mm 
SP6-006-003  Leading Edge Registration  ± 5.0 mm 
SP6-006-005  Buckle: Duplex Front  ± 5.0 mm 
SP6-006-006  Buckle: Duplex Rear  ± 5.0 mm 
SP6-006-007  Rear Edge Erase (Trailing Edge) ± 5.0 mm 
 
ARDF sub-scan magnification 
1.  Put the temporary test chart on the ARDF. Then make a copy from one of the 
feed stations. 
2.  Check the magnification ratio. Adjust  with SP6-017-001 if necessary.   
Standard: ±1.0% 
Reduction mode: ±1.0%   
Enlargement mode: ±1.0% 
Rev. 04/2007
⇒  
						

							 
SM 3-5 B230/B237/D042 
Replacement 
Adjustment 
3.3.3 REGISTRATION 
Image Area 
 
A = C = 4.2mm (1.6), B = 2.0mm 
Make sure that the registration is 
adjusted within the adjustment 
standard range as shown below. 
Leading Edge 
Adjusts the leading edge registration 
for each paper type and process line 
speed. 
Side to Side 
Adjusts the side-to-side registration for each  paper feed station. Use SP mode (SP1-002) 
to adjust the side-to-side registration for t he optional paper feed unit, LCT, and duplex unit. 
Adjustment Standard 
ƒ  Leading edge (sub-scan direction): 4.2 ± 2 mm 
ƒ  Side to side (main-scan direction): 2 ± 1 mm 
Paper Registration Standard 
The registration in both main and sub-scan  directions can change within the following 
tolerance. 
ƒ  Sub-scan direction: 0 ± 9 mm 
ƒ  Main-scan direction: 0 ± 4 mm 
Adjustment Procedure 
1. Enter SP2-109-003. 
2.  Print out the test pattern (14: 1-dot trimming pattern) with SP2-109. 
 
ƒ  Registration can change sli ghtly as shown on the previous page. Print some 
pages of the 1-dot trimming pattern fo r step 3 and 4. Then average the leading 
edge and side-to-side registration va lues and adjust each SP mode. 
3.  Do the leading edge registration adjustment.  1.  Check the leading edge registra tion and adjust it with SP1-001. 
2.  Select the adjustment conditions  (paper type and process line speed). 
3.  Input the value. Then press the 
 key. 
4.  Generate a trim pattern to check the leading edge adjustment. 
⇒
Rev. 04/2007 
						

							 
B230/B237/D042 3-6 SM 
4.  Do the side-to-side registration adjustment. 
1.  Check the side-to-side regist ration and adjust it with SP1-002. 
2.  Select the adjustment c onditions (paper feed station). 
3.  Input the value. Then press the 
 key. 
4.  Generate a trim pattern to check the leading edge adjustment. 
3.3.4  ERASE MARGIN ADJUSTMENT 
 
ƒ  Adjust the erase margin C and D only if  the registration (main scan and sub scan) 
cannot be adjusted within t he standard values. Do the r egistration adjustment after 
adjusting the erase margin C and D, and t hen adjust the erase margin A and B. 
 
1. Enter SP2-109. 
2.  Print out the test pattern (14: 1-dot trimming  pattern) with SP2-109. 
3.  Check the erase margin A and B. Adjust  them with SP2-103 if necessary. 
Leading edge: 1.5 to 5.0 mm,   
Side-to-side:0.5 to 4.0 mm,   
Trailing edge: 0.5 to 0.6 mm 
3.3.5 COLOR REGISTRATION 
Line Position Adjustment 
The automatic line positio n adjustment usually is 
done for a specified conditi on to get the best color 
prints.  
Do the following if color registration shifts:   
ƒ  Do “Auto Color Registration” as follows  to do the forced 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. 
ƒ  You should also do the line posit ion adjustment at these times: 
ƒ  After you transport or move the machi ne (you should do the forced line position 
adjustment if you install the machine at  the user location.) if the machine is 
pre-installed at the workshop and moved to the user location,   
Rev. 04/2007
⇒  
						

							 
SM 3-7 B230/B237/D042 
Replacement 
Adjustment 
ƒ  When you open the dr um positioning plate 
ƒ  When you remove or replace the motors , clutches, and/or gears related to the 
drum/development/transfer sections 
ƒ  When you remove or replace the image  transfer belt, image transfer belt unit or 
laser optical housing unit 
3.3.6 PRINTER GA MMA CORRECTION 
 
ƒ  The ACC is usually sufficient to adjust the color balance to get the best print output. 
You only need the printer gamma correction to fine-tune to meet user 
requirements. 
Use SP modes if you want to modify the printer gamma curve created with ACC. You can 
adjust the gamma data for the following: 
ƒ Highlight 
ƒ Middle 
ƒ Shadow areas 
ƒ IDmax.  
The adjustable range is from 0 to 30 (31 steps).   
Copy Mode 
- KCMY Color Balance Adjustment -  
The adjustment uses only “Offset” values. 
 
ƒ  Never change “Option” values (default value is 0). 
Highlight (Low ID)  Levels 2 through 5 in the C4 chart 10-level scale 
Middle (Middle ID)  Levels 3 through 7 in the C4 chart 10-level scale 
Shadow (High ID)  Levels 6 through 9 in the C4 chart 10-level scale 
ID max  Level 10 in the C4 chart 10-level scale (affects the entire image 
density.) 
Offset The higher the number in the range associated with the low ID, 
middle ID, high ID, and ID max, the greater the density. 
 
There are four adjustable modes (can be adjusted with SP4-918-009): 
ƒ  Copy Photo mode 
ƒ  Copy Letter mode 
ƒ  Copy Letter (Single Color) mode 
ƒ  Copy Photo (Single Color) mode 
Rev. 04/2007
⇒  
						

							 
B230/B237/D042 3-8 SM 
 
- Adjustment Procedure -  
1.  Copy the C-4 chart in the mode that you want to adjust. 
2.  Enter the SP mode. 
3. Select “Copy SP.” 
4. Select SP4-918-009. 
5.  Adjust the offset values until the copy quality conforms to the standard (
the 
table below). 
 
ƒ  1. Never change “Option” value (default value is 0). 
ƒ  2. Adjust the density in this order: “I D Max,” “Middle,” “Shadow,” “Highlight.” 
- Photo Mode, Full Color -  
  Item to Adjust  Level on the C-4 chart  Adjustment Standard  
1 ID max: 
(K, C, M, and Y) 
Adjust the offset value so that 
the density of level 10 
matches that of level 10 on 
the C-4 chart. 
2 Middle (Middle 
ID) 
(K, C, M, and Y) 
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, C, M, and Y) Adjust the offset value so that 
the density of level 8 matches 
Rev. 04/2007 
						

							 
SM 3-9 B230/B237/D042 
Replacement 
Adjustment 
that of level 8 on the C-4 
chart. 
4  Highlight (Low ID) 
(K, C, M, and Y) 
 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. 
5  K Highlight (Low 
ID) (C,M, and Y) 
 
Adjust the offset value so that 
the color balance of black 
scale levels 3 through 5 in the 
copy is seen as gray (no C, 
M, or Y should be visible). If 
the black scale contains C, 
M, or Y, do steps 1 to 4 again.
 
- Photo Mode, Single Color -
 
  Item to Adjust  Level on the C-4 chart  Adjustment Standard  
1  ID max: (K) 
Adjust the offset value so that 
the density of level 10 
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. 
Rev. 04/2007 
						

							 
B230/B237/D042 3-10 SM 
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. 
 
- Text (Letter) Mode, Full Color -  
  Item to Adjust  Level on the C-4 chart (K)  Adjustment Standard  
1 ID max: (K, C, M, 
and Y) 
Adjust the offset value so that 
the density of level 10 
matches that of level 10 on 
the C-4 chart. 
2 Middle (Middle 
ID)  
(K, C, M, and Y) 
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, C, M, and Y) 
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, C, M, and Y) 
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. 
 
- Text (Letter) Mode, Single Color -  
  Item to Adjust  Level on the C-4 chart (K)  Adjustment Standard  
1  ID max: (K) Adjust the offset value so 
that the density of level 10 
Rev. 04/2007