User's Manual

Troubleshooting and Diagnostics

Chapter

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108 6820 Series 80-Column Printer User’s Manual

Checking the Power Source

Press any key on the printer control panel. If there is power, the power in-

dicator (green LED) turns on and the print head moves to its starting posi-

tion. If the printer emits beeps and any of the other indicators light up or

flash, observe the number of beeps and indicator flashes and refer to the

Printer F ailure Indicators table on page 119.

If there is n o reaction from the printer after you press a key on the control

panel, or only the green power light blinks, verify that the power cables are

properly connected between the printer mechanism and its power source

(internal battery, vehicle cable, or ac). If none of these steps “wake” up the

printer w ith the problem, then you need to return the printer for service.

S Internal battery: Check the b attery and its cable by installing into

another known-good printer.

S Vehicle cable: Attach the printer in question to another vehicle power

cable.

S AC power: Plug the printer into another outlet.

Self-Test Failure

If a partial report generates and a printer error occurs during printing,

refer to the table on the next page for troubleshooting help.

If the printer does not generate a report:

S There may be a printer failure, refer to the troubleshooting table on the

next page for possible solutions.

S There may be a power failure, check the power source (internal b attery,

charge cable, or ac adaptor).