Troubleshooting; Test Reference Values; Motor Test Reference; Sensor And Switch Reference - Epson DFX-9000 Service Manual

Epson DFX 9000

3.3 Troubleshooting

3.3.1 Test reference values

3.3.1.1 Motor test reference

The table below lists the resistance values for the motors on the printer.
Table 3-3. Motor resistance values
Motor Coil resistance
SP MOTOR 0.88 ~ 1.08 ohm
LF MOTOR 0.5 ~ 0.6 ohm
O/C MOTOR 72 ~ 88 ohm
HCPP Motor 145 ~ 165 ohm
RF Motor 13.5 ~ 16.5 ohm
APTC Motor 365 ~ 446 ohm
Troubleshooting

3.3.1.2 Sensor and switch reference

Table 3-4. Sensors and switches test reference
Sensor Type
FTRPE Photo-interrupt
RTRPE Photo-interrupt
OCS1 / OCS2 Photo-interrupt
TPE Photo-reflective
COS Microswitch
INLK SW Microswitch
LES Photo-interrupt
APTCHP Photo-interrupt
TOFL Photo-reflective
TOFR Photo-reflective
RFS Photo-interrupt
RMS Microswitch
PTRM Microswitch
Troubleshooting
Revision B
Logical state
Low = paper present
Low = paper present
Low = closed
High = paper present
Low = cover closed
Low = cover closed
Low = home position
Low = home position
High = paper present
High = paper present
L-H-L, etc. = ribbon feeding
(spindle rotating)
Low = ribbon installed
Low - tractor unit installed
104