Toshiba e-Studio 3508A
Error Codes List page 2
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- Code: C1B0
- Description: The LCF transport motor is not rotating normally (when paper can be fed from any drawer except the LCF).
- Causes: LCF transport motor LCF board LGC board
- Remedy: 1 Is the LCF transport motor working? (Perform the output check: FS-03-122/ 172) Yes 2 No • Check if the connector CN3, CN30 of the LCF transport motor is disconnected. • Check if the signal line connector CN100 on the LCF board is disconnected. • Check if the power line connector CN101 on the LCF board is disconnected. • Check if the connector CN315 on the LGC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF transport motor board, LCF board and LGC board are short circuited or open circuited. 2 LCF transport motor • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF transport motor board, LCF board and LGC board are short circuited or open circuited. • Check if the PLL lock signal CN102-3 pin output from the LCF board is always “L” level. • Check if the voltage supplied to the microcomputer input terminal IC103-17 pin is always “L” level.
- Code: C260
- Description: Peak detection error
- Causes: LED lamp unit Lens unit SYS board Harness
- Remedy: 1 Is the exposure lamp lit? (Output check: FS-03-267) Yes It is lit. 2 No It is not lit. 3 2 Shading correction plate 1. Check if there is any scratch or stain on the shading correction plate. 2. Check if the shading correction plate is any scratch or dirty. Mirror 1. Check if the mirror is tilted. - Check that the lens is reflected in the mirror looking at carriage-1 from an upper position. - Check that the mirror is secured at the leaf spring. Notes: Do not turn the mirror adjustment screw more than necessary. Carriage 1. Check if the carriage is tilted by moving it to the left stopping point. 2. Check if the wire fixing screw is loosened. 3. Check if the movement of the carriage is unstable due to disengagement of the carriage roller. Exposure lamp 1. Check if the exposure lamp is flickering when it is turned on. 2. Check if the connector is properly connected all the way in the board of LED lamp unit. 3. While the carriage is being driven, check if the harness catches it or interferes with it. CCD board 1. Check if the connector is properly connected all the way in the CCD board. 2. Check if the CCD board or the lens unit is tilted. Check if the screw is securely tightened. 3. Replace the lens unit. SYS board 1. Check if the connector is properly connected all the way in the SYS board. (CN120, CN123) 2. Check if there is any abnormality in the parts mounted on the SYS board or in the appearance of the SYS board. 3. Check if the voltage is output from the power supply for the CCD. 4. Replace the SYS board. 3 Exposure lamp 1. Check if the connector is properly connected to the board of LED lamp unit. 2. Check if there are any scratches or damage on the board of LED lamp unit. 3. Replace the exposure lamp unit. Harness 1. Check if wiring of the harness (CN125 on the SYS board) is abnormal. 2. Check if the harness (CN125 on the SYS board) has any scratch on it or is open circuited or caught anywhere. 3. Replace the harness (CN125 on the SYS board).
- Code: C262
- Description: Communication error between the CCD board and the SYS board. Peak detection error (the light source is extremely light)
- Causes: Lens unit SYS board Harnesses
- Remedy: 1 Lens unit 1. Check if the connector is properly connected all the way in the CCD board. 2. Check if there is any abnormality in the appearance of parts mounted on the CCD board. 3. Check if +5V is output to the lens unit. 4. Check if the voltage is output from the CCD board. 5. Replace the Lens unit. 2 SYS board 1. Check if the connector is properly connected all the way in the SYS board. (CN120) 2. Check if there is any abnormality in the appearance of parts mounted on the SYS board. 3. Check if +5V is output to the SYS board. 4. Replace the SYS board. 3 Harnesses 1. Check if the harness has any scratch on it or is open circuited or caught anywhere. 2. Check if there is any abnormality in the connector terminal or the contacting surface of the flat harness. 3. Replace the harness between the SYS board and the CCD board.
- Code: C270
- Description: Carriage home position sensor not going OFF within a specified time / Downloading firmware with an incorrect model
- Causes: CCD board Carriage home position sensor Carriage home position sensor harness. SYS board Scan motor Scan motor harness
- Remedy: 1 Carriage locking Check if the carriage locking screw for packaging is attached. 2 Are the carriages slightly moved to the feeding direction?/Are the carriages staying at a position other than home position? Yes Check if the circuits of the CCD board are abnormal. No 3 3 CCD board • Check if the connector pin is disconnected or the harness is short circuited or open circuited. (CN001) • Check if the conductor pattern on the CCD board is short circuited or open circuited. • If the model of the firmware downloaded is incorrect, a C270 error (exposure lamp blinks twice) occurs. If the exposure lamp blinks twice, download the correct firmware. 4 Carriage home position sensor 1. Check if the harness of the carriage home position sensor is connected properly. (CN121, J002) 2. Check if the harness is caught or open circuited. 5 SYS board 1. Check if the connector of the SYS board (CN120, CN121, CN124, CN105) is connected properly. 2. Check if the mounted parts on the SYS board are damaged or abnormal. 3. Check if 24 V (CN105) on the SYS board is short circuited. 4. Check if 24 V is supplied to the SYS board (CN105). 6 Scan motor 1. Check if the belt tension is loosened. 2. Check if the motor fixing screw is loosened. 3. Check if the carriage wire and the timing belt come off. 4. Check if the connector (CN124) is connected to the motor properly. 5. Check if the harness of the motor is caught or open circuited. 7 Setting Clear the SRAM.
- Code: C280
- Description: Carriage home position sensor not going ON within a specified time
- Causes: Carriage home position sensor Carriage home position sensor harness SYS board Scan motor Scan motor harness
- Remedy: 1 Carriage locking Check if the carriage locking screw for packaging is attached. 2 Carriage hole position sensor 1. Check if the harness is properly connected to the sensor. 2. Check if the harness is caught or open circuited. 3 SYS board 1. Check if the harness (CN121, J002) of the carriage home position sensor is connected properly. 2. Check if the mounted parts on the SYS board are damaged or abnormal. 3. Check if 24 V (CM105) on the SYS board is short circuited. 4. Check if 24 V is supplied to the SYS board (CN105). 4 Scan motor 1. Check if the belt tension is loosened (if the motor screw is loosened). 2. Check if the carriage wire and the timing belt come off. 3. Check if the connector (CN124) is connected to the motor properly. 4. Check if the harness of the motor is caught or open circuited.
- Code: C290
- Description: The scanning system does not operate due to a blowout of the fuse in the scanning system.
- Causes: SYS board Fuse (F203) Power supply harness LVPS
- Remedy: Is 24V supplied to the SYS board? Yes Check the following because the signal for checking 24V on the SYS board is abnormal. 1. Check if the scanner CPU (IC26) is damaged or abnormal. 2. Check if the mounted parts on the SYS board are damaged or abnormal. 3. Check if 24V on the SYS board is short circuited. 4. Check if 24V is supplied to the SYS board (CN125). No 1. Check if the 24V supply harness is properly connected to the connector (CN125). 2. Check if 24V and SG on the SYS board are short circuited. 3. Check if the power supply is short circuited by pulling out the supply harness on the SYS board (CN125). 4. Check if the fuse on the LVPS (F203) is open circuited. 5. Check if there is no abnormality on the LVPS.