Kodak 800 SERIES service manual Parallel Port Test, Other port testing procedures

NovaJet 800 Series Service Manual

Parallel Port Test

Attach the service loopback test cable to the printer’s parallel port (contact ENCAD Technical Support to obtain). Activate the ‘Continuous Test’ by selecting the Utility Menu, Service Menu, Diagnostics Menu, Continuous Test. The printer will activate several test patterns, the “parallel port test equals passed” should be printed. If successful then the parallel port is operating correctly.

Caution: Connecting a parallel printer cable to a printer that is turned on can cause damage to the printer. U9/U17/U22 buffer I/C’s on the Main PWA are subject to failure when power arcs across the parallel pins. Always turn printer off before connecting a parallel printer cable or switching an A/B parallel connection switch from one printer to another.

Figure 4-111. Loopback Test Cable.

Please contact ENCAD technical support for the loopback test cable (The loopback test cable is a short test cable which has a centronics port on one end and a mini-din connector on the other). Connect cable to parallel port only. Disregard the Serial Port test as this is only for manufacturer testing. Power printer off and disconnect loopback cable, wait 10 seconds, apply power. Also refer to the ‘Intermittent Problems/ Continuity’ procedure.

Other port testing procedures

1.Perform a follow up test print using a known good file. Obtain test file from the Servicing Support CD (service item only). File must be sent through the EFPU 3.0 (Encad File Print Utility).

Troubleshooting 4-100