Printer Unit Faults - Epson MR Series Technical Reference Manual

Printer Unit Faults

The power supply of the printer isn't turned on
❏ Follow the procedures below.
1. Check the power switch of the TM printer is turned on.
2. Check the power cable of the TM printer is connected with the TM printer.
3. Check the TM printer is connected to the power supply of the TM-800 or the
outlet.When supplying the power from the IM-800 TM printer power supply built-in
model, check the power cable connections.
4. When supplying the power from the IM-800 TM printer power supply built-in model,
confirm whether supplying the other power supply such as the AC adapter solves the
problem.
5. Confirm whether replacing the TM printer solves the problem.
6. When supplying the power from the IM-800 TM printer power supply built-in model,
confirm whether replacing the power supply unit solves the problem. (See page 3-44)
Abnormal Operation
❏ Follow the procedures below.
1. Check the TM printer unit connections.
2. Confirm whether replacing the printer unit solves the problem.
• Check the communication using the device diagnostics utility. (Refer to Chapter 5.)
3. Confirm whether replacing the main circuit board solves the problem.
Printer Unit Does Not Print Normally
❏ Follow the procedures below.
1. Confirm whether the power supply of the printer is connected.
2. Check the printer unit connections.
3. Confirm that the correct data transmission parameters have been entered.
• Check the communication with the device diagnostics utility. (Refer to Chapter 5.)
4. The data control flow procedures differs according to the type of software program
being used. (For example, Windows UniMini and Advanced Printer Driver only support
XON/XOFF control, while OPOS supports DTR/DSR control.)
8-14 Troubleshooting Rev. I