Epson LQ-570+ Manuel d'entretien - Page 15

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1.6.11 Printer Protection for Heavy-Duty Printing

This printer has a printhead protection function to prevent it from overheating and to handle the printer when the

head driver voltage drops. If head temperature exceeds its maximum value, printing

head temperature drops to a certain value before printing resumes. Printing resumes at a lower print speed at first.

However, as the head temperature decreases, print speed increases to normal speed automatically. If the head

temperature continues to increase at the lower speed, printing is stopped or resumed as temperature increases or

decreases.

If the voltage supplied to the head drive circuit drops below its minimum limit as a result of heavy-duty printing,

printing is interrupted immediately. When the power supply voltage recovers to a certain level, the remaining print

line is printed at hatf speed. This protective action occurs when half or more of the wires are activated mntinuously.

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automatically until the