Ricoh B230 Service Manual
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SM 4-101 B230/B237 Trouble shooting After Executing SP2-111-003 Result (SP2-194) -007 -010, -011, -012 Test pattern check Possible cause/Countermeasure White image, Abnormal image, Low density ƒ Defective laser optics housing unit shutter ƒ Defective image processing unit ƒ Low density of test pattern ƒ Defective BICU 1. Replace the shutter motor. 2. Replace the high voltage power supply unit. 3. Do the forced process control (SP3-011-001) or supply some toner (SP3-015-xxx). 4. Replace the BICU. Result: 2 or 3 (Line pattern detection failure) Normal image, but with color registration errors ƒ Defective ID sensor shutter ƒ Defective ID sensor ƒ Defective BICU 1. Replace the ID sensor shutter solenoid. 2. Replace the ID sensor. 3. Replace the BICU. Result: 1 One of results (-010, -011, -012): 5 (Out of adjustable range) The main scan registrations of M, C, Y are shifted by more than ± 15 mm from the main scan registration of Bk. ƒ Defective laser optics housing unit ƒ Defective BICU 1. Replace the laser optics housing unit. 2. Replace the BICU.
B230/B237 4-102 SM
The sub scan
registrations of M, C,
Y are shifted by more
than ± 20 mm from
the sub scan
registration of Bk. ƒ Defective image transfer belt
ƒ Defective drive units
ƒ Defective BICU
1. Replace the image transfer belt.
2. Replace the drum motor.
3. Replace the BICU.
SM 4-103 B230/B237 Trouble shooting The main scan registration is shifted by more than ± 0.66 mm, but only at the central area of the image on the output. ƒ Defective ID sensor at center ƒ Deformed center area on the image transfer belt ƒ Defective BICU 1. Replace the ID sensor. 2. Replace the image transfer belt. 3. Replace the BICU. The skew for M, C, Y is more than ± 0.75 mm from the main scan registration of Bk ƒ Defective PCU ƒ Defective laser optics housing unit ƒ Defective BICU 1. Reinstall or replace the PCU. 2. Replace the laser optics housing unit. 3. Replace the BICU. Others ƒ Skew correction upper limit error ƒ Defective BICU 1. Reset the skew correction value (see the note at the bottom of the table). 2. Replace the BICU. Result: 0 - - Do SP2-111-001 or -002. ƒ For details about how to reset the skew correction value, see Recovery procedure for SC285 and no replacement preparation of laser optics housing unit in “Laser Optics Housing Unit Replacement” (in the Replacement and Adjustment section of the manual).
B230/B237 4-104 SM After Executing SP2-111-001 Result (SP2-194) -007 -010, -011, -012 Test pattern check Possible cause/Countermeasure White image, Abnormal image, Low density ƒ Defective laser optics housing unit shutter ƒ Defective image processing unit ƒ Low density of test pattern ƒ Defective BICU 1. Replace the shutter motor. 2. Replace the high voltage power supply unit. 3. Do the forced process control (SP3-011-001) or supply some toner (SP3-015-xxx). 4. Replace the BICU. Result: 2 or 3 (Line pattern detection failure) Normal image, but with color registration errors ƒ Defective ID sensor shutter ƒ Defective ID sensor ƒ Defective BICU 1. Replace the ID sensor shutter solenoid. 2. Replace the ID sensor. 3. Replace the BICU. Result: 1 Result: 5 (Out of adjustable range) Low image density on the output ƒ Low pattern density 1. Do the forced process control (SP3-011-001) or supply some toner (SP3-015-xxx).
SM 4-105 B230/B237 Trouble shooting The main scan registrations of M, C, Y are shifted by more than ± 1.4 mm from the main scan registration of Bk. ƒ No defective component ƒ Defective laser optics housing unit ƒ Defective BICU 1. Do SP2-111-003 again. 2. Replace the laser optics housing unit. 3. Replace the BICU. The sub scan registrations of M, C, Y are shifted by more than ± 1.4 mm from the sub scan registration of Bk. ƒ No defective component ƒ Defective image transfer belt ƒ Defective drive units ƒ Defective BICU 1. Do SP2-111-003 again. 2. Replace the image transfer belt. 3. Replace the drum motor. 4. Replace the BICU. The main scan registration is shifted by more than ± 0.66 mm, but only at the central area of the image on the output. ƒ Defective ID sensor at center ƒ Deformed center area on the image transfer belt ƒ Defective BICU 1. Replace the ID sensor. 2. Replace the image transfer belt. 3. Replace the BICU. The skew for M, C, Y is more than ± 0.75 mm from the main scan registration of Bk. – at the end of the scan line? ƒ Defective PCU ƒ Defective laser optics housing unit ƒ Defective BICU 1. Reinstall or replace the PCU. 2. Replace the laser optics housing unit. 3. Replace the BICU. Others ƒ Skew correction upper limit error ƒ Defective BICU 1. Reset the skew correction value
B230/B237 4-106 SM (see the note at the bottom of the table). 2. Replace the BICU. The main scan registration of Bk is shifted. ƒ Abnormal SP setting value of main scan: Bk 1. Adjust the value with SP2-101-001. No color registration errors The main scan length of Bk is shifted. ƒ Abnormal SP setting value of main scan length detection: Bk 1. Adjust the value with SP2-185-001. Low image density on the output ƒ Low pattern density 1. Do the forced process control (SP3-011-001) or supply some toner (SP3-015-xxx). Result: 0 Color registration errors The main scan registration is shifted, but only at the central area of the image on the output. ƒ Defective ID sensor at center ƒ Deformed center area on the image transfer belt ƒ Defective BICU 1. Replace the ID sensor. 2. Replace the image transfer belt. 3. Replace the BICU.
SM 4-107 B230/B237 Trouble shooting The main scan registrations of M, C, Y are shifted. ƒ Defective laser optics housing unit ƒ Defective ID sensor ƒ Defective BICU ƒ Incorrect SP value 1. Replace the laser optics housing unit. 2. Replace the ID sensor. 3. Replace the BICU. 4. Adjust the value with SP2-182-004 to -021. The sub scan registrations of M, C, Y are shifted. ƒ Defective image transfer belt ƒ Defective drive units ƒ Defective ID sensor ƒ Defective BICU ƒ Incorrect SP value 1. Replace the image transfer belt. 2. Replace the ID sensor. 3. Replace the drum motor. 4. Replace the BICU. 5. Adjust the value with SP2-182-022 to -039. ƒ The skew of M, C, Y is different. ƒ Defective PCU ƒ Defective laser optics housing unit ƒ Defective IOB 1. Reinstall or replace the PCU. 2. Replace the laser optics housing unit. 3. Replace the IOB.
B230/B237 4-108 SM ƒ For details about how to reset the skew correction value, see Recovery procedure for SC285 and no replacement preparation of laser optics housing unit in “Laser Optics Housing Unit Replacement” (in the Replacement and Adjustment section of the manual).
SM 4-109 B230/B237 Trouble shooting 4.6 JAM DETECTION 4.6.1 PAPER JAM DISPLAY SP7-504 shows the paper jam history. CODE: indicates the jam code. SIZE: indicates the paper Size Code. Total: Indicates the total counter (SP7-502-001). DATE: indicates the date when the jam occurred. 4.6.2 JAM CODES AND DISPLAY CODES Jam Code SP Display Description LCD Display 7504 1 At Power On Paper is not fed at power on. A 7504 3 Tray 1: ON Paper is not fed from tray 1. A 7504 4 Tray 2: ON Paper is not fed from tray 2. Y 7504 5 Tray 3: ON Paper is not fed from tray 3 (LCT). Y 7504 6 Tray 4: ON Paper is not fed from tray 4. A 7504 8 Bypass: ON Paper is not fed from the by-pass tray. Z 7504 9 Duplex: ON Paper is jammed at the duplex unit. Z 7504 11 Vertical Transport 1: ON Paper feed sensor 1 does not detect paper from tray 1. A 7504 12 Vertical Transport 2: ON Paper feed sensor 2 does not detect paper from tray 2. A 7504 13 Bank Transport 1 Vertical transport sensor 1 or relay sensor does not detect paper from tray 3 Y
B230/B237 4-110 SM Jam Code SP Display Description LCD Display (LCT). 7504 17 Registration: ON Registration sensor does not detect paper. B 7504 18 Fusing Entrance: ON Fusing entrance sensor does not detect paper. B 7504 19 Fusing Exit: ON Fusing exit sensor does not detect paper. B 7504 20 Paper Exit: ON Paper exit sensor does not detect paper. C 7504 21 Relay Exit: ON Tray exit sensor (bridge unit) does not detect paper. D 7504 22 Relay Transport: ON Relay sensor (bridge unit) does not detect paper. D 7504 25 Duplex Exit: ON Duplex exit sensor does not detect paper. Z 7504 26 Duplex Reverse: ON Z 7504 27 Duplex Entrance: ON Duplex entrance sensor does not detect paper. Z 7504 28 1-Bin Exit Sensor 1-bin tray exit sensor does not detect paper. C 7504 51 SEF Sensor 1 Paper feed sensor 1 does not turn off. B 7504 52 SEF Sensor 2 Paper feed sensor 2 does not turn off. A 7504 53 Bank SEF Sensor 1 Vertical transport sensor or relay sensor 1 does not turn off. Y 7504 54 Bank SEF Sensor 2 Vertical transport sensor 2 does not turn off. Y