Kyocera FS-1025MFP Operation Manual page 175

Error Code
U01721
U01800 - U01820
U01821
U05200
U05300
U19000
U19100
Possible Cause/Action
Communication error occurred during high-speed transmission. Designated transmission
speed may not be available for the recipient machine.
Reduce the transmission start speed and send again.
Communication error occurred during reception of high-speed transmission. Ask the sender
to reduce the transmission speed and send again.
Note If the communication error occurs frequently, change the default setting of RX Start
Speed in System Menu.
Communication error occurred during reception of high-speed transmission. Designated
transmission speed may not be available for this machine. Ask the sender to reduce the
transmission speed and send again.
Note If the communication error occurs frequently, change the default setting of RX Start
Speed in System Menu.
Reception was canceled because communication requirements are not met due to the
reception restriction set on this machine.
Reception was rejected by the recipient because communication requirements are not met
due to the reception restriction set on the recipient machine. Check with the recipient.
Memory reception was stopped because there is no more free space in the memory of this
machine.
Create free space by outputting the data stored in the memory, and ask the sender to resend.
Transmission was stopped because there is no more free space in the memory of the
recipient machine. Check with the recipient.
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Troubleshooting