Chapter 5 Troubleshooting
Rev. A
5-1
5.1 Troubleshooting
The printer may exhibit different symptoms for the same problem, which makes troubleshooting more
difficult. This section, however, provides simple and effective ways to facilitate troubleshooting.
The following flowchart illustrates the main steps of the trouble shooting process.
Motor Name Location Check Point Resistance
CR Motor CN6(C200 Main) 1-pin & 3-pin,
2-pin & 4-pin
7.8ƒ¶•}10%
PF(Pump) Motor CN7(C200 Main) 1-pin & 3-pin,
2-pin & 4-pin
7.8ƒ¶•}10%
Sensor Name Check Point Signal Level Sensor Status
Paper end sensor CN4 / 1-pin, 2-pin Open: less than 0.7 V Paper exit
Close: more than 2.4 V No paper
Carriage home
position sensor
CN5 / 1-pin, 2-pin Open: less than 0.7 V Home position
Close: more than 2.4V Out of home position
ASF phase Sensor CN11 / 1-pin, 2pin Open: less than 0.7 V Home position
Close: more than 2.4 V Out of home position
Black cartridge
sensor
CN8 / 1-pin, 18pin On: 0 V Black cartridge out
Off: more than 2.4 V Black cartridge exit
Color cartridge
sensor
CN8 / 2-pin, 18-pin On: 0 V Color cartridge out
Off: more than 2.4 V Color cartridge exit
Thermistor CN8 / 3-pin, 18-pin Analog data Change the VH voltage of
charge pulse for common
driver circuit
START
END
Unit Level Troubleshooting
Unit Repair
(C206 PSB/PSE)
Unit Repair
(C200 Main)
Unit Repair
Printer Mechanism
Disassemble and Adjustment
Figure 5-1. Troubleshooting Process Flowchart
Table 5-1.Motor Resistance and Measurement Procedure
Table 5-2.Sensor Check
