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P-35 (bizhub 950i/850i)
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Contents
| Malfunction type | Media sensor failure |
| Malfunction code | P-35 |
| Malfunction detection timing | – The PWM of each LED is out of the predetermined value during performing the calibration of the optical sensor. Perform the calibration when the right door is opened and closed, when recovering from the Sleep/ErP Auto Power OFF mode, when the main power switch is turned ON, and when a certain amount of sensor ambient temperature changes. – When the obtained voltage value is determined to be an abnormal value during detection before feeding paper. |
| Relevant parts | – Paper basis weight detection board/TX (PBWDB/TX) – Paper basis weight detection board/RX (PBWDB/RX) – Paper feed/transport drive board (PFTDB) – CPU board (CPUB) – Base board (BASEB) |
Procedure
- Open the right door and check if there is any foreign matter between PBWDB/TX and PBWDB/RX.
- Check if the mylar and reflector part between PBWDB/TX and PBWDB/RX are damaged or peeled off, or clogging by paper dust.
Clean up it as necessary.
Replace if damaged. - Check the connector between PBWDB/TX CN1ML-relay CN919-relay CN927-PBWDB/RX CN3MD for proper connection and correct as necessary.
- Check the connector between PBWDB/RX CN2MD-relay CN927-relay CN145A-PFTDB CN30 for proper connection and correct as necessary.
- Check the connector between PBWDB/RX CN1MD-relay CN927-relay CN815-relay CN816-BASEB CN61E for proper connection and correct as necessary.
- Replace PBWDB/TX.
- Replace PBWDB/RX.
- Check the connector between PFTDB CN4-BASEB CN7E for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- Paper feed/transport drive board (PFTDB)
- CPU board (CPUB)
- BASEB F19E conduction check.
- BASEB F8E conduction check.
- Base board (BASEB)