A SERVICE OF

logo

5.1 OVERVIEW
The printer may exhibit different symptoms for the same problem, which makes troubleshooting
more difficult. However, this section provides simple and effective ways to facilitate
troubleshooting. The following flowchart illustrates the main steps of the troubleshooting process.
Table 5-1. Motor Resistances
Motor Resistance Range Temperature
CR Motor
10.0Ω±10% At 25 °C(77°F)
PF Motor
11.5Ω±10% At 25 °C(77°F)
Table 5-2. Sensor Status
Sensor Point Signal Level Status
PE Sensor
CN8
Pin1(PE)toPin2
(GND)
H(5V)
Paper exists
L (GND)
No paper (paper end)
BCO Sensor
CN11
Pin 8 (BCO) to
Pin7(GND)
L (GND) Black cartridge exists
H (5 V) No black cartridge
CCO Sensor
CN12
Pin8(CCO)to
Pin7(GND)
L (GND)
Color cartridge exists
H(5V)
No color cartidge
HP Sensor
CN9
Pin3(HPV)to
Pin2(GND)
L At home position (HP)
H
Out of HP
TH Sensor
CN10
Pin10(SW0-5)to
Pin1(GND)
Analog data
Change the pulse width of
the charge pulse for the
common driver circuit
START
UNIT LEVEL TROUBLESHOOTING
UNIT REPAIR
[C137 PSB/PSE BOARD]
UNIT REPAIR
[C162 MAIN BOARD]
UNIT REPAIR
[M-4A60 MECHANISM]
ASSEMBLY
AND
ADJUSTMENT
END
Figure 5-1. Troubleshooting Process Flowchart
Stylus Pro XL Troubleshooting
Rev. -A 5-1