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SECTION 6.
TROUBLESHOOTING
This section has been devised to help you if you are unable to produce output on the
CT Series printers. Use this section to make sure the basics have been checked before
deciding you are unable to proceed any further. The section is divided into three
parts:
• Initial Checklist
• Centronics Parallel Interface
• RS232C Serial Interface
INITIAL CHECKLIST
1. Is the printer powered up and ON-LINE?
2. Do any of the Front Panel LEDs indicate an error condition? If the Error
LED is ON, it may mean the print head assembly is open.
3. Is the Print Head in the down and latched position.
USING THE IEEE 1284 PARALLEL INTERFACE
1. Is the IEEE 1284 printer cable connected securely to your parallel port
(DB-25S Female) on the PC and to the Parallel Interface connector on the
printer?
WARNING: Never connect or disconnect interface cables (or use a switch box)
with power applied to either the printer or the host. This may cause damage
to the interface circuitry and is not covered by warranty.
2. Does the Parallel interface cable used meet IEEE 1284 specifications?
3. Is there more than one parallel interface port on your PC (LPT1, LPT2,
etc.)? If so, make sure you are sending data out the correct port.
4. Is the IEEE 1284 interface selected? DSW-8 must be in the OFF position to
enable the Parallel interface.
5. When you send the print job to the printer, and it does not respond, do you
get an error message on your PC that says “Device Fault” or something
similar?
This may mean that the computer doesn’t know the printer is there. Verify
that:
SATOCTSeriesPrinters9001069A Page6-1