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MAINTENANCE: Error Messages and Countermeasures
ERR021
• Error related to control signals for communication (input port)
Ensure that the interface cable is properly connected to the input port.
• Also ensure that the communication parameters are properly set.
ERR022
• Error related to control signals for communication (input port)
Ensure that the interface cable is properly connected to the input port.
• Also ensure that the communication parameters are properly set.
ERR023
• Error related to control signals for communication (input port)
Ensure that the interface cable is properly connected to the input port.
• Also ensure that the communication parameters are properly set.
ERR024
• Error related to control signals for communication (input port)
Ensure that the interface cable is properly connected to the input port.
• Also ensure that the communication parameters are properly set.
ERR025
• Error related to control signals for communication (input port)
Ensure that the interface cable is properly connected to the input port.
• Also ensure that the communication parameters are properly set.
ERR026
• Error related to communication data (output port)
Ensure that the interface cable is properly connected to the output port.
• Also ensure that the communication parameters are properly set.
ERR027
• Error related to communication data (output port)
Ensure that the interface cable is properly connected to the output port.
• Also ensure that the communication parameters are properly set.
ERR028
• Error related to communication data (output port)
Ensure that the interface cable is properly connected to the output port.
• Also ensure that the communication parameters are properly set.
ERR031
• Error related to the up-and-down tracking
Malfunction of the up-and-down motor, up-and-down sensor, electric circuit board, or break in
cables is probable.
• Shut off the device and contact NIDEK or your authorized distributor.
ERR032
• Error related to left-to-right tracking
Malfunction of the right-to-left motor, right-to-left sensor, electric circuit board, or break in cables
is probable.
• Shut off the device and contact NIDEK or your authorized distributor.
ERR033
• Error related to the back-and-forth tracking
Malfunction of the back-and-forth motor, back-and-forth sensor, electric circuit, or break in
cables is probable.
• Shut off the device and contact NIDEK or your authorized distributor.
ERR034
• Error related to the motorized chinrest
Malfunction for the chinrest motor, motorized chinrest sensor, or electric circuit board, or break
in cables is probable.
• Shut off the device and contact NIDEK or your authorized distributor.
NO PAPER
• Error related to the printer
If the printer is short of paper, refill paper.
If the printer cover is open, close it securely.
• If the same error code is displayed even after the replacement of printer paper roll, malfunction of
the printer, electric circuit board, or break in cables is probable.
Shut off the device and contact NIDEK or your authorized distributor.
Error code Cause and countermeasure
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