Overview; Troubleshooting Information; Printhead; Sensors - Epson LQ-2180 Service Manual

LQ-2180

5.1 Overview

This chapter contains flowcharts and checkpoint tables to help you
troubleshoot the printer. The checkpoint tables let you identify the faulty
part or unit by checking the values or ranges listed for each component.

5.2 Troubleshooting Information

This section gives you troubleshooting information to let you test points
for replaceable units.
Troubleshooting
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Overview

5.2.1 Printhead

The information in this section is the same as for the LQ-2170.

5.2.2 Sensors

The check method, including test pin number and meter reading, for
each sensor is the same as for the LQ-2170. However, be careful of the
CN 12 and 16 that are not common to the LQ-2170. The change made
for LQ-2180 is as shown below.
Table 5-1. Sensor Test Points
Sensor
Test Pin
Connector
Number
Number
Place one lead on Pin 1
CN12 and the other lead on Pin
1: Release 1
(Release 2 and check the voltage
2: GND
sensor 1) while toggling the sensor
lever.
CN16
1: Release 2
Same as for CN12
(Release
2: GND
sensor 2)
Other
See the LQ-2170 Service Manual.
sensors

5.2.3 Motors

The motor test points are the same as for the LQ-2170.

5.2.4 Error Codes with Indicators and Buzzer

The Error codes with Indicators and buzzer are the same as for the LQ-
2170.
Revision A
Test method Meter reading
See the LQ-2170 Service
Manual.
See the LQ-2170 Service
Manual.
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