Epson SQ-1170 Service Manual page 128

5.1 OVERVIEW
The task of troubleshooting is not an easy job,
symptoms.
Figure 5-1 show a flowchart, by which you can easily determine the cause of trouble.
Table 5-1 and 5-2 lists the information related to the troubleshooting operation.
Unit Name
Carriage motor
Top edge holder motor
Pump motor
Buzzer
5 times of O. l-second beep with
O. l-second intervals
5 times of 0.5-second beep with
0.5 second intervals
3 times of O. l-second beep with
0.1 -second intervals
3 times of O. l-second beep with
O. l-second intervals
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Service Check List I
Figure 5-1. Troubleshooting Procedure
Table 5-1. Resistance of Motor Coil
Coil Resistance 7.8ohms f 10% at 20 degrees C
Coil Resistance 19.5ohms * 7% at 25 degrees C
Coil
Resistance 790hms & 10% at 25 degrees C
Coil Resistance 1 17ohms
Table 5-2. Error Display
LED Status
All LEDs blink
PAPER OUT LED lights up
INK END LED lights up
5-1
even a single trouble may exhibit a variety of
Specifications
Error Description
Weasted ink drain tank overflow
Cover open
Carriage malfunction
paper empty
Ink end or ink cartridge empty
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