OTC1050 and OTC1450 (4130, 4140) Troubleshooting Guide
Problem:  
What should happen when the printer is turned on?

Power-Up Sequence Test
The normal start-up sequence for the printer is detailed in the following table. The printer performs this sequence each time the printer is turned on.
When Power is turned on, this should happen:Which means that...If it doesn't happen...
Indicators light briefly. POWER indicator remains on. Power is applied to printer. Main power supply is operating OK and feeding power to switch panel. Check power receptacle, power cable, and printer fuses. If necessary, call for service.
Printhead carriage moves right to left, then stops at extreme left. Carriage motor functions properly. While tracking, the printer checks position of the printhead carriage and then parks the carriage at its "home"position in preparation for printing. Check for an obstruction. If necessary, call for service.
Printer chirps. Printer is mechanically and electronically OK. (A manual off line/on line cycle also causes this chirp.) Call for service.
ON LINE indicator lights. Printer is ready for operation. If ON LINE doesn't light, check for paper out, paper jam, printhead carriage obstruction. If it flashes, close the operator access door. If necessary, call for service.
 
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