Service manual

Diagnostics & Troubleshooting 10-7

751 Printer did not sense a black mark when expected. For errors 751-753,

check the supply tracking, supply marks, black mark sensor position, and

supply roll for binding. Press ESCAPE and try to continue printing.

Change supply.

752 Printer sensed a mark in the wrong place.

753 Printer sensed a mark that is too long.

754 Check for a ribbon jam or remove any slack in the ribbon by turning the

take-up reel clockwise. Load a new ribbon.

755 Printhead is open. Close the printhead.

756

Load supply and/or clean the sensor.

757 Load supply (supply length mismatch), because the calibrated supply

length differs by plus or minus .25 inches from the format. Press FEED.

758 The supply is not seen or the on-demand sensor is broken. Check for a

label jam, clear the supply path, or reload supplies. This error may occur if

you remove a label too quickly in the on-demand mode.

762 Low Voltage. For DC-powered printers, recharge the external battery. For

AC-powered printers, check the power inlet where the printer is connected.

The acceptable voltage range is between 90-132 V

RMS

and 180-264 V

RMS

. If

more or less power is received, unpredictable results may occur.

763 Waiting to dispense label. Press FEED.

765 The printhead has less than 8 bad dots. The printer can shift bar code

fields to avoid bad dots. You may need to press ESCAPE to continue

printing. Print a test label to confirm the number of bad dots.

768 Printhead has more than 8 bad dots within the format area or is not

connected. Connect the printhead.

785

The internal liner take-up reel is full. Remove the liner take-up reel and

dispose of the liner. Press ESCAPE to continue printing.

786 Internal liner take-up error. The liner has separated from the core or is not

properly winding on the core. Remove the liner from the take-up core and

reload the liner into the take-up core.

791 The printer has an error pending. Turn off the printer. Wait 15 seconds

(until the power light is completely dim) and turn it back on. Resend the

packets.