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HP Designjet T Series — Service Manual 2-31
System Error Codes - Full Descriptions
2 Perform the Media Drive diagnostic test to troubleshoot the problem further.
See
2. Paper Drive on page 3-18.
3 If the printer has a 44 inc
h scan axis (and a Rewinder), perform the
Rewinder diagnostic test to troubleshoot the problem further. See
6.
Rewinder on page 3-34.
4 Check the connections on the Main PCA; the Media Advance Drive is
connec
ted to the connector labeled Paper Motor.
5 Adjust the encoder disc and motor mount conf
iguration using the Media
Advance Drive installation instructions. See
Media Advance Drive on page
6-218.
6 If the System Error continues, replace the Media Advance Drive. See
Media
Advance Drive on page 6-218.
System Error:
84:YZ
Problem
Description:
Back tension servo shutdown (roll feeding).
Corrective Action: Try the following:
1 Switch the Power OFF from the back of the Printer and disconnect the Power
cor
d. Reconnect the power cord and power On the Printer.
2 If the problem persists, contact HP support.
Sys
tem Error:
85:YZ
Problem
Description:
Problem finding the Drive Roller zero.
Corrective Action: Try the following:
1 Perform the Media Drive diagnostic test to troubleshoot the problem further.
See
2. Paper Drive on page 3-18.
2 If the System Error continues
, replace the Encoder Disk and Encoder Sensor.
See
Encoder Disk and Encoder Sensor on page 6-216.
System Error:
86:YZ
Problem
Description:
Possible Paper Jam.
Corrective Action: Try the following:
1 Switch the Power OFF from the back of the Printer and disconnect the Power
cor
d. Reconnect the power cord and power On the Printer.
2 Open the Window and check for any visible obstacles restricting the
mo
vement of the Drive Roller. If there is a wrinkled mass of media inside the
paper path, lift the Pinch wheels (using the Media Lever) and clear the
obstruction.