Printhead Service Check; Signature Button Assembly Service Check - Toshiba e-STUDIO500P Service Manual

Printhead service check

CAUTION: The printhead is not a serviceable FRU. Do not disassemble the printhead.
The printhead assembly does not contain any service replaceable parts or components. If service error code
930.xx displays, the wrong printhead is installed in the printer. See
Note: A 201.xx paper jam may also indicate a failing printhead. The paper may have jammed prior to or at the
input sensor. Print the event log and see if 201 or 931 errors are logged.
Service error code
1 Error code 931.xx
No first HYSNC Signal
Error Code 932
Lost HYSNC
2 Error Code 934.xx
Mirror motor lost lock Error
Code 935
Mirror motor unable to
reach operating speed

Signature button assembly service check

Note: If you are unable to clear a 32.xx-Unsupported Cartridge User Error message, be sure a
Lexmark T64x print cartridge is correctly installed in the printer. The cartridge is easily identified by the contact
board on the right side rear of the cartridge. Install another print cartridge before attempting to troubleshoot the
printer. Make sure the signature button cable is properly connected to J14 on the system board. Check the print
cartridge for damage or improper installation of the chip. Also, be sure there is proper contact between the chip
on the cartridge and the signature button contact assembly.
Service tip: An intermittent 32.xx-Unsupported Cartridge User Error message can be caused by poor
contact between the signature button cartridge contacts in the upper front cover and the chip. Also check for
proper seating of the signature button cartridge cable to the system board.
FRU
1 Signature button contact
assembly
System board
2-122
Service Manual
Explanation
These errors usually indicate a failure in the HYSNC signal to the
printhead. Check the continuity of the cables connected to J2 and J4
on the system board. If incorrect, replace the defective cable. The
voltage at J4-1 measures approximately +5 V dc. If incorrect, replace
the system board. The voltage at J2-7 measures approximately
+24 V dc. If incorrect, replace the system board. If correct, replace
the printhead assembly.
These error codes indicate a problem with the mirror motor circuit in
the printhead assembly or the mirror motor cable to the system board
cable or system board assembly. The voltage at J5-2 measures
approximately +24 V dc. If incorrect, replace the system board. If
correct, replace the FRUs in the following order:
• System board
• Printhead assembly
Action
Check the voltage on the signature button cartridge contact. The
voltage measures approximately +3.8 V dc when not writing data to
the system board. If data is being written, the voltage measures
approximately 0 V dc. If incorrect, disconnect the cable from J19 on
the system board, and check the voltage on J19-1. The voltage
measures approximately +5 V dc.
• If incorrect, replace the system board.
• If correct, replace the signature button cartridge contact
assembly.
"Printhead" on page 7-10.