HP 510 Inkjet Large Format CH336A#B1K manual How to Detect Problems Related to the Encoder Disk

Troubleshooting

How to Detect Problems Related to the Encoder Disk

Encoder Disk

The following information will help you detect any problems related to the Encoder Disk:

„Horizontal and periodic white lines, all of them with the same width depending on the failure mode. This is a clear indication that the Encoder Disk is damaged.

„System Error 56:10 - This means that you have to replace the Drive Roller Encoder Sensor ⇒ Page 8-38. But, if the problem persists, replace the Encoder Disk Assembly.

„System Error 81:01 - This means a Paper-Axis shutdown. If this error code appeared but was NOT caused by a paper jam, then perform the Paper Advance Test ⇒ Page 4-11. If the Paper Advance Test fails during the third test, the Front Panel will display the following message:

Paper Advance test

System error 56:10

Roller encoder sensor failed

	In this case, you should replace the Drive Roller Encoder Sensor ⇒
	Page 8-38. But, if the problem persists, replace the Encoder Disk
	Assembly.
	In order to remove the Encoder Disk, you must first remove the Drive
NOTE
	Roller ⇒ Page 8-86.
	Be very careful when assembling the Axle Spring because you could
	damage the Encoder Disk.
	Check that no air bubbles are trapped between the Encoder Disk and the
	hub once it is installed.

HP DesignJets 500, 510 and 800 Series Printers Service Manual 1-17