How Can We Help?
P-35 (bizhub 650i/550i/450i)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
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) -Expansion control board (EXCB) -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.
PBWDB/TX (Part# AAMPH10U00)
PBWDB/RX (Part# AA7NH00S00) - Check the connector between PBWDB/TX CN1ML-relay CN606-relay CN608-relay CN607-relay CN254-relay CN253-PBWDB/RX CN3MD for proper connection and correct as necessary.
- Check the connector between PBWDB/RX CN2MD-relay CN253-relay CN254-EXCB CN6EX for proper connection and correct as necessary.
- Check the connector between PBWDB/RX CN1MD-relay CN255-relay CN256-BASEB CN36E for proper connection and correct as necessary.
- Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- Replace EXCB. (Part# AC74H00501)
- Replace CPUB.
650i/550i (Part# AC74H02P03)
450i (Part# AC76H02P02) - Replace BASEB. (Part# AC74H02101)