Ricoh Aficio MP C2550 Service Manual

SC Tables
D037/D038/D040/D041 4-28 SM Appendix
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Heating roller fusing lamp consecutive full power 1
When the fusing unit is not running in the ready condition, the heating
roller fusing lamp keeps on full power for 37 seconds.
 Broken heating roller thermistor
Related SC code: SC 555
545 A
Replace the heating roller thermistor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Zero cross error
 The zero cross signal is detected three times even though the
heater relay is off when turning on the main power.
 The zero cross signal is not detected for 2 seconds even though
the heater relay is on after turning on the main power or closing the
front door.
 The detection error occurs twice or more in the 11 zero cross signal
detections. This error is defined when the detected zero cross
signal is less than 45.
 Defective fusing lamp relay
 Defective fusing lamp relay circuit
 Unstable power supply
547 D
1. Check the power supply source.
2. Replace the PSU
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Heating roller thermistor (end) error 2 551 A

Ricoh Aficio MP C2550 Specifications

General

Print Technology	Laser
Functions	Print, Copy, Scan, Fax
Print Speed (Color)	25 ppm
Print Speed (Monochrome)	25 ppm
Print Resolution	600 x 600 dpi
Maximum Print Resolution	2400 x 600 dpi
Duplex Printing	Yes
Copy Speed (Color)	25 cpm
Copy Speed (Monochrome)	25 cpm
Copy Resolution	600 x 600 dpi
Memory (Maximum)	1 GB
Hard Disk Drive (Optional)	80 GB
Interface	USB 2.0, Ethernet 10/100Base-TX
Fax Transmission Speed	33.6 Kbps
Maximum Paper Size	A3
Scan Resolution	600 dpi
Zoom Range	25% - 400%
Paper Size	A4, A5, B5
Paper Weight	52 - 256 g/m²
PDL	PCL 6, PostScript 3
Network Connectivity	Ethernet
Operating System Compatibility	Windows, Mac OS