Sc 690 ricoh aficio 1035 - Ricoh Aficio 450 Copier

GAVD I2C

communica-tion

error

690-001: Y

690-002: M

690-003: C
690-004: K

Possible Causes
• High voltage supply board defective
• Poor connection at the development
bias terminal
• Poor connection at the high voltage
supply board

hi
this error happened when :
Incorrect Function DIMM installed in Slot #2 on Controller PCB. (Slot #2 is for PostScript Option only) so you can:
Reload System Firmware.
Replace Controller PCB
for fix that.

change thirmistor or thermal switch

DEFECTIVE BICU PWB OR DEFECTIVE CONTROLLER PWB THIS IS GOING TO BE EXPENSIVE 1000.00 OR MORE

SC545 and SC 546 are fuser temperatyre error. pls. check thetmistor/ thermostats, connectors if thernistor are deffective replace thermistors. after replacement or checking of this parts do the SC reset. 107 # turn off copier then on after 5 sec.

Bad hard disk, try formating it or replace it

sc 121 is related to optics section of your machine.check the lamp is glowing .if so check the connection from optics to main board.

Laser diode beam not positioned correctly. Turn the machine off and back on and see if it goes away. You can run sp 2109-3 or 2109-4 in the service mode to adjust the beam in service mode by pressing on the yellow button. pressing the 107 keys and holding down on the clear button.

If this doesn't resolve the issue, you probably need a laser which we have one for sale here.

ic2 bus on BICU board defective.