Evaluation of a 754 Error OUT of Ribbon

9820/9830/9835 Service Manual

Troubleshooting

EVALUATION OF A 754 ERROR (OUT OF RIBBON)

This error occurs whenever the ribbon stops turning. This can happen if the motors are not working, the stock is binding, the platen is sticky, or if any condition is present that prevents ribbon rotation. Perform the following procedure:

1.Verify Ribbon Motors are turning. If they are not, check connectors to the Control Board Assy. and the connections to the motors.

2.Verify Platen Motor is feeding. If is is not, check the connections.

EVALUATION OF A 755 ERROR (PRINTHEAD OPEN)

This error occurs if the printhead is not functioning properly. Perform the following procedure:

1.Ensure the printhead is properly latched.

2.Verify that the magnet is present and inserted properly.

3.Verify that sensor is functioning properly.

EVALUATION OF A 765 ERROR (PRINTHEAD FAILURE)

This error occurs if a dot is out of specification. This error can occur even if print quality is not visibly affected. Operation can be continued until the problem is corrected. Perform the following procedure:

1.Check connections to the printhead.

2.Check the printhead harness.

3.Check the printhead itself and replace if necessary.

EVALUATION OF THE CONTROL BOARD ASSY.

The following status codes indicate the Control Board Assembly has a fault.

900	RAM Test Failure	905	Illegal Interrupt
901	ROM/EPROM Test Failure	906	Power Failure
902	Timer Failure	907	No Application Memory
903	Interrupt Test Failure	908	NVRAM Checksum Failure
904	No Kernel Memory	910	Warm Restart

1.To determine if this fault is permanent or temporary, turn the printer off, wait 15 seconds then turn the printer on again. If any of these status codes are repeated, turn off the printer and replace the Control Board Assy.

2.Print a test label. See Test Label (Level 1), in Chapter 4, for instructions on printing a test label.

3.Place the printer in Data Dump mode and send data to the printer.

EVALUATION OF COMMUNICATIONS

If the printer functions properly off-line, examine communications. There are two communication paths for the printer. The RS-232 serial path uses a 25 position connector. The IEEE-1284 parallel path consists of an external 36 position connector, CN1, and an internal 40 position connector, CN5, that is used to support the Coax/TwinAx Interface. CN1 also supports an external Ethernet adapter.

TC9830SM Rev. B 7/98 Confidential

July 1998

9835TM, 9820TM, 9830TM specifications

Monarch 9830TM, 9820TM, and 9835TM are part of a robust family of printers designed to meet the evolving demands of modern businesses. These printers are renowned for their efficiency, quality, and versatility in handling various print tasks.

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Monarch 9820TM Evaluation of a 754 Error OUT of Ribbon, Evaluation of a 755 Error Printhead Open

Models: 9835TM 9820TM 9830TM