Ricoh MP C307 User Manual

SC4xx: Image Processing
434
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
First, cycle the main power off/on to check if this SC occurs again.
If this SC reoccurs, do the following:
1.
Remove and install the PCDU again to make sure that the PCDU is firmly set. Cycle the
main power off/on to check if this SC occurs again. If the SC occurs again, go to the next
step.
2. Check if there are scratches on the drum surface. If you can see the internal element of
the drum (plain pipe) on the surface, go to the next step, because too much electricity can
flow at this point, which caused the SC.
3. Replace the PCDU and cycle the main power off/on to check if this SC occurs again.
4. Reconnect the connector (CN561) on the BiCU and cycle the main power off/on. Be
careful not to bend the connector pins when reconnecting. If the SC occurs again, go to
the next step.
5. Reconnect the connector (CN801) on the power pack (charge/development) and cycle
the main power off/on. If the SC occurs again, go to the next step.
6. Remove and install the power pack (charge/development) again and cycle the main
power off/on. Check if the spring near the power pack terminal bends and comes in
contact with other contacts. Cycle the main power off/on to check if this SC occurs
again.
7.
Replace the power pack (charge/development) and cycle the main power off/on to check
if the SC occurs again.
8. Replace the BiCU and cycle the main power off/on to check if the SC occurs again.
9.
Make sure that the harnesses on the power pack (charge/development) are not shorted. If
not good, replace the harness and cycle the main power off/on.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC492-00 C High voltage power: Transfer bias output error
Incorrect PWM signal is detected for 0.2 sec.
Hardware related causes:
• Contact failure
• Loose connector (Controller side)
• Grounding, open-circuit in the high voltage route
• Shorted harness (Controller side)
• BiCU malfunction (Signal error)
• Power pack (Transfer) failure
Load related causes:
• Increased impedance in the paper transfer roller
• Increased impedance in the ITB
• Open-circuit

Ricoh MP C307 Specifications

General

Type	Multifunction Printer
Functions	Print, Copy, Scan, Fax
Print Technology	Laser
Print Resolution	1200 x 1200 dpi
Maximum Paper Size	A4
Duplex Printing	Yes
Scan Resolution	600 x 600 dpi
Mobile Printing	Apple AirPrint, Google Cloud Print, Mopria
Operating Systems Supported	Windows, Mac OS, Linux
Print Speed (Black)	30 ppm
Print Speed (Color)	30 ppm
Standard Paper Capacity	350 sheets
Supported Paper Sizes	A4, A5, A6, B5, B6, Letter, Legal
Scanner Type	Flatbed with ADF (Automatic Document Feeder)
Copier Speed (Black)	30 cpm
Copier Speed (Color)	30 cpm
Copy Resolution	Up to 600 dpi
Zoom Range	25% to 400%
Connectivity	Ethernet, USB
Max. Paper Capacity	1, 350 sheets
Display	10.1-inch color touchscreen