Kodak 800 SERIES service manual Quick Troubleshooting List, Main PWA LED Operation

NovaJet 800 Series Service Manual

Media Sensor Reference Points Not Initialized

Hardware Failures/Diagnostic Tests

Quick Troubleshooting List

1.Send a test image (PRT or RTL) directly to printer to verify a hardware failure.

2.If the carriage stops during normal travel clean encoder strip/slide shaft/bushing/belt; reseat trailing cable connections if necessary.

3.Check feed/take-up modes and operation. Run a legs test under Diagnostics.

4.Reseat all printer cable connections.

5.Refresh the printer firmware.

Figure 4-81. Main PWA LED Operation.

6. Check Main PCB LED’s (light emitting diodes):

D1 – Normally flashes; DSP is not active. Steady during print operations. D9 – Normally flashes; Power PC processor is idle. Stops flashing when processor is

active (i.e. during paper sensing operations).

D10 – Normally OFF; Flashes during initialization, then turns off. LED staying on would indicate a problem when the FPGA is unconfigured. Ensures the gate array chips have been properly programmed (one on Main PWA and on each Carriage PWA).

D8 - +24V available.

D13 - +5V available.

Troubleshooting 4-79