Specifications

LA 310 - Service Manual
5-5
No response to computer commands. READY indicator is on.
1. Examine the data cable connections. Reseat the data cable if necessary.
2. Check the condition of the data cable. Replace if damaged.
3. Run the printing self test. If this is not satisfactory, replace the MainBoard. Run
the loopback test. If the test gives satisfactory result, the problem may be in the
host computer.
4. Examine the features setup for a communications mismatch.
Carriage moves, but there is no printout during printing self test.
1. Make sure the ribbon is installed.
2. Examine the ribbon path. Does the ribbon pass in front of the whole printhead?
Adjust if necessary.
3. Check the printhead distance lever if at the correct setting.
4. Printhead pins may not be able to respond to control signals. Replace the Printhead.
5. Printhead may not be receiving control signals. Replace the Mechanical Assembly.
6. The Main Board may not be able to send printhead control signals. Replace the Main
Board.
Pinfeed paper does not advance.
1. Make sure the tractor/friction feeder lever is set to tractor feed.
2. Ensure that the paper sensor on the left tractor is been depressed by the paper.
3. The paper feed mechanism may be jammed or broken. Replace the Mechanical
Assembly.
4. Replace the Main Board.