Ca￿￿iage Te￿￿

The purpose of this test is to verify the operation of the Carriage subsystems, like the Line Sensor and analog multiplexer. This test also checks the connection between the carriage flex circuit and the cartridges.

Perform the Carriage test as follows:

1In service mode 1, press Ca￿￿iage Te￿￿ (Print Quality Key).

2The test will start and all the LEDs will turn OFF. There will be no movement in the Printer and you must wait for the Front+Panel to indicate if the test has passed or failed.

3Refer to the following figure to check which LED is associated with which test. If the test ￿a￿￿e￿, the following LEDs will be lit (ON). If the test fail￿, the following LEDs will be flashing:

If y￿u ￿re viewing inf￿rm￿ti￿n vi￿ the seri￿l p￿rt, y￿u will see ￿utput simil￿r t￿ the f￿ll￿wing if the Test Passes:

4. - Carriage Test

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

Pen BLACK continuity: WORKS

Pen CYAN continuity: WORKS

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: 253 255 255 254 253 252 252 250 249 248 247 246 245 244 243 241

Optical Sensor: WORKS

Carriage MUX : WORKS

Pen BLACK continuity: WORKS ...........

The test is ￿ontinued on the next page￿

4-12

HP DesignJet 430, 450C and 455CA Printers

Service Tests