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CC002 (bizhub 4750i/4050i)
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Contents
| Trouble type | CC151: ROM contents error upon startup (MSC) |
| Rank | C |
| Trouble detection condition | A fault is detected in a sequence of ROM contents check of the CPU board (CPUB) during starting. |
| Trouble isolation | – |
| Relevant electrical parts | -Backup board (ERB) -CPU board (CPUB) -Base board (BASEB) |
Procedure
- Check the ROM version.
- Rewrite the firmware.
- Check the connector between ERB CN1-BASEB CN20E for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- Replace ERB. (Part# AA2JH00C00)
1. Replace the current ERB with a new one.
2. Replace the following components with new ones.
When the transfer belt unit, transfer roller and the fusing unit have been replaced with new ones, carry out the [Service Mode] -> [Counter] -> [Life] -> [New Release].
• Imaging unit (Part# AAJV01D)
• Transfer belt unit (Part# ACT9R70300)
• Fusing unit (Part# ACT8R70100)
• Transfer roller (Part# AAJRR70500)
• Feed roller, pick-up roller, separation roller (including options)
• Tray 1 feed roller: (Part# A64J564101)
• Manual bypass tray feed roller: (Part# A93E597500)
• Tray 1 pick-up roller: (Part# A64J564201)
• Manual bypass tray pick-up roller: (Part# A5C1562200)
• Tray 1 separation roller: (Part# A11U560000)
• Separation pad (Part# AAJRR72200)
• Toner filter (Part# A92E158100)
3. Turn ON the main power switch and check to see that warm-up is started.
Make sure that malfunction codes other than C2650 or improper IU/TC placement is not detected.
4. Set the various setting values again. - Replace CPUB.
- Replace BASEB.