HP 450c Service Manual - Page 54

Cancel and, Media Source, Carriage Assembly

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5 The test continuously repeats itself until you press the Cancel and Media Source keys. If you are viewing information via the serial port, you will see output similar to the following if the Test Passes: 1. - FRONT PANEL TEST 2. - Y AXIS TEST 3. - X AXIS TEST 4. - CARRIAGE TEST 5. - SENSORS TEST Test Mode X-axis cycle : 87 pwm. 0x57c7c350 (carrPCBTest): Forcing use of R10X method for Calvin: 13643 1960 0x57c7c350 (carrPCBTest): Forcing use of R10X method for Yellow: 11361 1953 0x57c7c350 (carrPCBTest): Forcing use of R10X method for Cyan: 11361 1953 0x57c7c350 (carrPCBTest): Forcing use of R10X method for Magenta: 11361 1953 Test Mode Y-axis cycle : 26.67 speed and 68 pwm. Test Mode X-axis cycle : 67 pwm. Test Mode Y-axis cycle : 50.00 speed and 100 pwm. Test Mode X-axis cycle : 66 pwm. Test Mode Y-axis cycle : 26.67 speed and 66 pwm. Test Mode X-axis cycle : 65 pwm. Test Mode Y-axis cycle : 50.00 speed and 98 pwm. Pen BLACK continuity: WORKS Pen CYAN continuity: WORKS Test Mode X-axis cycle : 64 pwm. Pen MAGENTA continuity: WORKS Pen YELLOW continuity: WORKS Pen BLACK has 1cd4 identification. Pen CYAN has 400 identification. Pen MAGENTA has 1f00 identification. Pen YELLOW has 1900 identification. Optical sensor samples: 255 255 255 255 255 254 254 253 253 252 252 251 251 250 250 249 Optical Sensor: WORKS Encoder sensor: WORKS Pen BLACK continuity: WORKS Test Mode Y-axis cycle : 26.67 speed and 68 pwm The result of the Encoder sensor test is only reported via the serial output and not via the frontĆpanel. In order to perform the encoder sensor test, you must move the carriage slightly so that the encoder sensor can detect the change in status. If the carriage is not moved at all, the Encoder Sensor test will always fail. If the carriage is moved and ONLY the Encoder Sensor test fails, then you need to replace the Carriage Assembly ' page 8Ć37. If any of the tests fail, refer to the individual test documented in this chapter for the correct troubleshooting procedure. 4-20 HP DesignJet 430, 450C and 455CA Printers Service Tests

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4-20
Service Tests
HP DesignJet 430, 450C and 455CA Printers
5
The test continuously repeats itself until you press the
Cancel and
Media Source
keys.
If you are viewing information via the serial port, you will see output
similar to the following if the
Test Passes
:
1. - FRONT PANEL TEST
2. - Y AXIS TEST
3. - X AXIS TEST
4. - CARRIAGE TEST
5. - SENSORS TEST
Test Mode X–axis cycle : 87 pwm.
0x57c7c350 (carrPCBTest): Forcing use of R10X method for Calvin: 13643 1960
0x57c7c350 (carrPCBTest): Forcing use of R10X method for Yellow: 11361 1953
0x57c7c350 (carrPCBTest): Forcing use of R10X method for Cyan: 11361 1953
0x57c7c350 (carrPCBTest): Forcing use of R10X method for Magenta: 11361 1953
Test Mode Y-axis cycle : 26.67 speed and 68 pwm.
Test Mode X-axis cycle : 67 pwm.
Test Mode Y-axis cycle : 50.00 speed and 100 pwm.
Test Mode X-axis cycle : 66 pwm.
Test Mode Y-axis cycle : 26.67 speed and 66 pwm.
Test Mode X-axis cycle : 65 pwm.
Test Mode Y-axis cycle : 50.00 speed and 98 pwm.
Pen BLACK continuity: WORKS
Pen CYAN continuity: WORKS
Test Mode X-axis cycle : 64 pwm.
Pen MAGENTA continuity: WORKS
Pen YELLOW continuity: WORKS
Pen BLACK has 1cd4 identification.
Pen CYAN has 400 identification.
Pen MAGENTA has 1f00 identification.
Pen YELLOW has 1900 identification.
Optical sensor samples: 255 255 255 255 255 254 254 253 253 252 252 251
251 250 250 249
Optical Sensor: WORKS
Encoder sensor: WORKS
Pen BLACK continuity: WORKS
Test Mode Y-axis cycle : 26.67 speed and 68 pwm
.............
The result of the Encoder sensor test is only reported via the serial
output and not via the frontĆpanel. In order to perform the encoder
sensor test, you must move the carriage
slightly
so that the encoder
sensor can detect the change in status. If the carriage is not moved at
all, the Encoder Sensor test will always fail. If the carriage is moved
and ONLY the Encoder Sensor test fails, then you need to replace the
Carriage Assembly
'
page 8Ć37.
If any of the tests fail, refer to the individual test documented in
this chapter for the correct troubleshooting procedure.