If you are viewing information via the serial port, you will see output similar to the following if the Test Fails:

4. - Carriage Test

0x57c7c350 (carrPCBTest): Forcing use of R10X method for Calvin: 13643 1960

0x57c7c350 (carrPCBTest): Forcing use of R10X method for Yellow: 12160 1899

0x57c7c350 (carrPCBTest): Forcing use of R10X method for Cyan: 12160 1899

0x57c7c350 (carrPCBTest): Forcing use of R10X method for Magenta: 12160 1899 Pen BLACK

continuity: FAILS

Pen CYAN continuity: FAILS

Pen MAGENTA continuity: FAILS

Pen YELLOW continuity: FAILS

Pen BLACK has 3ffe identification.

Pen CYAN has 3ffe identification.

Pen MAGENTA has 3ffe identification.

Pen YELLOW has 3ffe identification.

Optical sensor samples: 215 252 243 232 221 208 194 179 166 151 135 119 103 87 71 54

Optical Sensor: WORKS

Carriage MUX : FAILS

Pen BLACK continuity: FAILS ................

4The test continuously repeats itself until you press the Cancel and Media Source keys.

Cartridge Continuity Test Failure

If any cartridge Continuity test fails, to resolve the problem, try one of the following:

1Remove the failing Cartridge and clean the flex contacts on the Carriage and the Cartridge. Reseat the Cartridge and try the test again.

2Replace the Cartridge of the relevant failing color and perform this test again.

3Check and if necessary replace the Trailing Cable ' page 8'8.

4Replace the Carriage Assembly ' page 8'37.

5Replace the Electronics Module ' page 8'13.

Only replace one component at a time and perform the test again before replacing another component￿ Using this procedure you will be able to determine exactly which component failed￿

The test is continued on the next page￿

Service Tests

HP DesignJet 430, 450C and 455CA Printers

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