HP 450c Service Manual - Page 59
Plot Print Quality and Media Type keys., Servo/Encoder Test
View all HP 450c manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 59 highlights
Servo/Encoder Test The servo/encoder test performs the following: D MediaĆaxis encoder test: Verifies the operation of the servo loop (mediaĆaxis feedback). D CarriageĆaxis encoder test: Verifies the operation of the servo loop (carriageĆaxis feedback). D Records the maximum friction detected in the EEROM. You can view this information on the service configuration plot. Perform the Servo/Encoder test as follows: 1 In service mode 2, press Servo/Encoder Test (Media Type Key). 2 The test will start and there will be slight movements in the X and YĆaxis. After every 5 movements, the direction of the movement will change in both axis. The maximum PWM of both axis will be saved in the EEROM. 3 To view the results of the test, you must print the Service Configuration Plot (Print Quality and Media Type keys). 4 If the test fails, an error code will appear on the frontĆpanel. Refer to Chapter 2 in order to correctly troubleshoot the failure. Service Tests HP DesignJet 430, 450C and 455CA Printers 4-25