Lexmark C782 Service Manual - Page 127

Printer does not recognize that the HCIT 2000-sheet option is installed., Replace HCIT

Page 127 highlights

5061 Printer does not recognize that the HCIT 2000-sheet option is installed. Step 1 2 Actions and questions Is the HCIT 2000-sheet option the only paper input option that is not recognized? Make sure that the printer and any option above the HCIT 2000-sheet option are installed correctly. Are the printer and any options installed correctly? 3 Check for correct installation of the lower options autoconnect cable to system board connector J20. Is the cable to J20 installed correctly? 4 Disconnect J20 from the system board, and check the voltages on connector J20 on the system board. Note: All voltages are approximate values: Connector pin Voltage J20-1 +5 V dc J20-2 Ground J20-4 +5 V dc J20-5 +24 V dc J20-7 +5 V dc J20-8 +5 V dc Are the voltages correct? 5 Autoconnect cables-Check the autoconnect from the printer or option above the HCIT 2000-sheet option. Check for any signs of cuts, pinched wiring, or damage to the contacts in the connector. Are there any problems with the autoconnect cables? 6 HCIT autoconnect cable-Check the HCIT autoconnect cable for correct installation at the HCIT system board. Is the cable installed correctly? 7 HCIT autoconnect cable continuity-Check the continuity of the HCIT autoconnect cable(s). Is there continuity? Yes Go to step 5 Go to step 3 Go to step 4 Go to step 5 Repair or replace as necessary. Go to step 7 Replace HCIT system board. No Go to step 2 Install the options correctly, and recheck performance. Install the cable correctly, and recheck performance. Replace the system board. Go to step 6 Install the cable correctly. Replace the HCIT autoconnect cable. Diagnostic information 2-85

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Diagnostic information
2-85
5061
Printer does not recognize that the HCIT 2000-sheet option is installed.
Step
Actions and questions
Yes
No
1
Is the HCIT 2000-sheet option the only paper input
option that is not recognized?
Go to step 5
Go to step 2
2
Make sure that the printer and any option above the
HCIT 2000-sheet option are installed correctly.
Are the printer and any options installed correctly?
Go to step 3
Install the options
correctly, and
recheck
performance.
3
Check for correct installation of the lower options
autoconnect cable to system board connector J20.
Is the cable to J20 installed correctly?
Go to step 4
Install the cable
correctly, and
recheck
performance.
4
Disconnect J20 from the system board, and check the
voltages on connector J20 on the system board.
Note:
All voltages are approximate values:
Are the voltages correct?
Go to step 5
Replace the
system board.
5
Autoconnect cables—Check the autoconnect from the
printer or option above the HCIT 2000-sheet option.
Check for any signs of cuts, pinched wiring, or damage
to the contacts in the connector.
Are there any problems with the autoconnect cables?
Repair or replace
as necessary.
Go to step 6
6
HCIT autoconnect cable—Check the HCIT
autoconnect cable for correct installation at the HCIT
system board.
Is the cable installed correctly?
Go to step 7
Install the cable
correctly.
7
HCIT autoconnect cable continuity—Check the
continuity of the HCIT autoconnect cable(s).
Is there continuity?
Replace HCIT
system board.
Replace the
HCIT
autoconnect
cable.
Connector pin
Voltage
J20-1
+5 V dc
J20-2
Ground
J20-4
+5 V dc
J20-5
+24 V dc
J20-7
+5 V dc
J20-8
+5 V dc