17 Theta axis error Call Gerber Field Service.
18 RS-232 test failure Call Gerber Field Service.
19 Illegal plot data command Check plot data; resubmit plot.
20 Plotter has overheated Allow plotter to cool down or move it to a cooler area.
Call Gerber Field Service.
21 Illegal interrupt error Try power up again. Call Gerber Field Service.
22 Unknown interrupt error Try power up again. Call Gerber Field Service.
23 Theta home error Try power up again.
24 Z home error Try power up again.
25 Y home error Try power up again.
26 Data overflow (only for HPGL
data)
Check communication parameters (baud rate, etc.)
27,28,29 Problems with baud rate, data bits,
parity bits, stop bits
Call Gerber Field Service.