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Re: error 990

My printer has err 990?

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  • ehemingway Feb 21, 2008

    Printer Ricoh GX3050x -----err 990

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Hi,
Could you be more Specific. Printer Make-Model Et,c.
is it HP-Cannon-Epson et,c.
Thanks mike.

Posted on Feb 21, 2008

  • Mike Waldron Feb 22, 2008

    Hi,

    The only documentation i,ve located. is that the 990 error is related to a coupling. ** please read Taken From An Article:-

    The coupling is a mechanical device that engages the OPC drum in each toner cartridge with the drive block once the carriage has properly positioned the toner cartridge with the transfer belt. This position is determined by the carriage detect ribs that pass through a home position photo sensor. All these ribs are the same size except one. This longer detect rib is home position and is located near the magenta cartridge slot on the carriage. When this longer rib passes through the home position sensor, the cyan cartridge is engaged by the coupling to begin its share of the writing and primary transfer process. As each color comes into position, the coupling motor rotates a cam that locks the carriage in place and engages each OPC drum. When the carriage is ready to rotate to the next color, the coupling motor reverses to disengage the coupling.

    The coupling position is detected by the “coupling on” sensor, or the “coupling off” sensor. If either one of these sensors does not see the sensor flag when it is supposed to, a 990 error is shown on the display. If either of the sensors is bad, a 991 error will be displayed. For troubleshooting these two errors, Hope this has helped to resolve your Problem.

    Mike @ Compurepair.

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