Service manual

Troubleshooting
EPSON FX-880/FX-1180 Service Manual
5-1
Overview
This chapter contains flowcharts and checkpoint tables to help you troubleshoot the printer. Use the
flowcharts to isolate a faulty unit based on abnormal symptoms. Use the checkpoint tables to identify the
faulty part or unit by checking the values or ranges listed for each component.
After completing a repair, perform the appropriate adjustments and any required lubrication. See
Chapter 4 for adjustments, and Chapter 6 for information about lubrication points.
START
Unit Level
Troubleshooting
Unit Repair
(C229 MAIN Board)
Disassembly and Adjustment
Unit Repair
(C229 PSB/PSE Board)
Unit Repair
Printer Mechanism
END
Figure 5-1. Troubleshooting Process Flowchart
The table below lists tools required for troubleshooting.
Table 5-1. Required Tools
Tool Description
Oscilloscope Greater than 50 MHz recommended.
Multimeter Digital recommended. (Analog can be used.)