Error Troubleshooting
Phaser 6600 and WorkCentre 6605 Xerox Internal Use Only
Service Manual
2-22
Test M o d e
Test Mode (when the optional USB Host is installed)
Note: To complete the test mode, restart the printer.
Single Step
Single Step allows you to collect Device Descriptor from the device you specify.
Procedure
1. Enter Service Mode. See “How To Enter Service Mode” on page 2-8.
2. Confirm that the [Printer Diag] is selected, and then press the OK button.
3. Press the OK button.
4. Use the [ ] button to select [USB Host Test], and press the OK button.
5. Use the [ ] button to select [Single Step], and press the OK button.
6. Specify the device address. (Available addresses are 0 to 127.)
Use the [ ] and [ ] buttons to move the cursor to right and left.
Use the [ ] and [ ] buttons to increase or decrease the value where the cursor is placed.
7. Press the OK button to transfer a request to the device specified.
Item Description
TEST MODE TEST J Keeps J state for the DownStream port of the Host Controller.
TEST K Keeps K state for the DownStream port of the Host Controller.
TEST SE0 Keeps SE0 state for the DownStream port of the Host Controller.
TEST PACKET Repeatedly sends the test packet form the DownStream port of the
Host Controller.
Printer Diag
ESS Diag
ESS Diag
All Test
ESS Diag
USB Host Test
USB Host Test
TEST MODE
USB Host Test
Single Step
Single Step
Address: 000
Single Step
DATA IN
Single Step
Address: 002
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