Troubleshooting For Motors And Sensors - Epson Stylus C58 Service Manual

Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21

3.3 Troubleshooting for Motors and Sensors

Motor
Table 3-2. Motor Resistance and Check Points
Motor name Type
CR motor Motor with DC brush
PF motor 4-phase, 200-pole HB stepping motor
Sensor
Sensor name Detecting system
PE sensor Transmission photo interrupter
TROUBLESHOOTING
Location Check point
CN5 Pin 1 & 2
Pin 1 & 3
CN6
Pin 2 & 4
Table 3-3. Sensor Check
Location Signal level
2.6 V or more
CN7 pin 1 & 2
0.4 V or less
Troubleshooting for Motors and Sensors
Resistance
±
28.8 Ω
10%
4.3 Ω + 8%/-
º
12%(20 C)
Sensor status
Paper loaded
No paper
Revision E
30
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