Symptom: Strange symbols appear during normal printing.

Problem: Wrong symbol set.

Solution: Make sure the symbol set selected corresponds to symbol set resident, in font card, or in soft font.

Hardware Problems

Symptom: Graphic image prints partly on one page, partly on the next.

Problem: Insufficient printer memory for this image at this resolution.

Solution: Change the resolution, reduce the image size, or install more memory in your printer.

Symptom: Nothing happens, but printer indicates it is ready to receive data.

Problem: Configuration error.

Solution: Check cable connection; if serial, make sure appropriate MODE command has been used (PC). If more than one printer is available, make sure your printer has been selected. Make sure your printer is on-line.

Symptom: “Garbage” prints.

Problem: Incorrect cable configuration. (Also, see “Software Problems.”)

Solution: Check cable configuration, continuity, and length.

Symptom: Printer freezes or displays error message when computer is rebooted.

Problem: Booting the computer while the printer is on can cause a communications error.

Solution: Take printer off-line before rebooting computer.

Problem: Gases are given off by forms or adhesives passing through the hot fusing unit.

Solution: Make sure the forms you use can withstand heating, and provide adequate ventilation.

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Oki LED Printer user manual Hardware Problems