Chapter 1 Troubleshooting; Overview - Epson Stylus Photo R220 Service Manual
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Also See for Stylus Photo R220:
- Printer basics manual (70 pages) ,
- Product information (11 pages) ,
- Start here manual (9 pages)
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EPSON Stylus Photo R220/R230
1.1 Overview
This chapter describes how to identify troubles in two levels: unit level repair and
component level repair. Refer to the flowchart in this chapter to identify the defective
unit and perform component level repair if necessary. This chapter also explains motor
coil resistance, sensor specification and error indication.
UNIT-LEVEL TROUBLESHOOTING
UNIT REPAIR
ASSEMBLY AND ADJUSTMENT
Table 1-1. Troubleshooting Flowchart
TROUBLESHOOTING
START
END
Table 1-2. Motor, Coil Resistance
Motor
PF Motor Same as ASF/
Pump Motor
Since CR Motor and APG Motor are DC Motors, the resistance among the electric
poles varies. Therefore, judge if it is normal or abnormal based on if there is no
operation of the motor or not; the resistance values cannot be used to judge the
abnormality. However, it is difficult to judge accurately, if it is not clear, replace the
motor.
Table 1-3. Sensor Check Point
Sensor Name
Location
PE Sensor
CN9
PG Sensor
CN14
Star Wheel
CN11
Sensor
CDR Tray
CN11
Sensor
Overview
Location
Check Point
Pin1 and 3
CN6
Pin2 and 4
Check Point
Signal Level
More than 2.4V
Pin1 and 2
Less than 0.4V
More than 2.4V
Pin1 and 2
Less than 0.4V
-
Pin1 and 2
-
-
Pin3 and 4
-
Revision A
Resistance
3.0Ω
±
10%
(25°C/Phase)
Switch Mode
Off:
No Paper
On:
Paper
Off:
Anywhere of PG
On:
In process of
switching PG
On:
ASF Mode
Off:
CDR Mode
Off:
No CDR Tray
On:
Detect CDR Tray
8
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Troubleshooting
