Power Problems; Communications; The Printer Won't Respond To The Computer; Serial Communication - Ioline FJ Printer Service Manual

Power problems

If the printer won't power on or initialize—or if the fan does not
spin—follow these initial diagnostic steps:
1. Check the power cord. Make sure that it is fi rmly plugged into
the wall and into the back of the printer.
2. Check the voltage at the wall outlet and verifi y that it is within
the operating limits as specifi ed in Chapter 1, Specifi cations.
If there are no obvious power problems, proceed to the Mechanical,
Electrical, and Electronic Diagnostics later in this chapter.

Communications

The Printer won't respond to the computer

If the printer doesn't accept commands from the computer, try the
following:
1. Verifi y that the communication cable is correctly connected to the
printer and to the proper communications port on the computer.
2. Change the computer COM port settings to match the printer's
serial communications settings. (See Serial Communication,
below.)

Serial communication

The serial port on the printer has an adjustable baud rate. Available
speeds are 9600, 19200, 38400, 57600, and 115200. It is critical that the
Control Center, FlexPlot or design software use the same baud rate
that the printer is using.
If there is ever any doubt about what baud rate the printer is using, Ioline
recommends resetting it to the default of 38400. To reset the baud rate:
1. Turn off the power to the printer.
2. Press and hold the Page Advance key (the key below Set Origin)
while turning power on.
3. Continue holding the Page Advance key until the OK light
turns red and the Square light turns green.
If using a terminal program like TeraTerm
the printer, make sure to use 8 Data Bits, No Parity, 1 Stop Bit, and
Xon/Xoff ( software) Flow Control.
to communicate with
™
Chapter 3: Troubleshooting & Testing
41