Need to troubleshoot a printer the user messed up somehow when the cartridges were being changed, said that he turned off the printer to conserve energy during the process since it wouldn't work ...bottom line is that now the printer says that the doors are not closed properly and won't finish initializing...Have taken out the ink cartridges and replaced but still won't work....ANY SUGGESTION?????
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HP 4500 color printer....
- Thread starter sheit
- Start date
Try this...
1
• The printer’s top or side door is open or the door sensor has failed.
– Close the top or side door or replace the door sensor.
• One of the two interlock switches (MS2 or MS3) may be defective. If
the following test proves that the switches are defective, replace the
interlock switch assembly as shown in Chapter 6 of the printer
service manual.
Note
Power cycle the printer and re-close both doors to confirm the
message before troubleshooting.
Test the interlock switch
WARNING!
Do not inhibit the free movement of the interlock switch. If this
mechanism is blocked, voltage may be present when the top cover is
open.
1 Open and close the top cover. If the message remains, open and
close the side door.
2 Open the side door and push the interlock mechanism with a flatblade
screwdriver (see “Testing the interlock switches” on page 7-21
of the service manual), while running test 41 from Service Mode
(see Chapter 3).
3 If the message persists, remove the top cover and check that the
switch linkage is not bent.
4 Check that the switch connectors are in good repair. Toggle the
switches by pressing down on the metal tab over the switches.
5 If the linkage is not damaged, remove the switch assembly and test
it with an ohmmeter.
6 Replace the assembly if it is defective.
12 Close top or side door
1
• The printer’s top or side door is open or the door sensor has failed.
– Close the top or side door or replace the door sensor.
• One of the two interlock switches (MS2 or MS3) may be defective. If
the following test proves that the switches are defective, replace the
interlock switch assembly as shown in Chapter 6 of the printer
service manual.
Note
Power cycle the printer and re-close both doors to confirm the
message before troubleshooting.
Test the interlock switch
WARNING!
Do not inhibit the free movement of the interlock switch. If this
mechanism is blocked, voltage may be present when the top cover is
open.
1 Open and close the top cover. If the message remains, open and
close the side door.
2 Open the side door and push the interlock mechanism with a flatblade
screwdriver (see “Testing the interlock switches” on page 7-21
of the service manual), while running test 41 from Service Mode
(see Chapter 3).
3 If the message persists, remove the top cover and check that the
switch linkage is not bent.
4 Check that the switch connectors are in good repair. Toggle the
switches by pressing down on the metal tab over the switches.
5 If the linkage is not damaged, remove the switch assembly and test
it with an ohmmeter.
6 Replace the assembly if it is defective.
12 Close top or side door
Try this... If you need more info just post here
1
• The printer’s top or side door is open or the door sensor has failed.
– Close the top or side door or replace the door sensor.
• One of the two interlock switches (MS2 or MS3) may be defective. If
the following test proves that the switches are defective, replace the
interlock switch assembly as shown in Chapter 6 of the printer
service manual.
Note
Power cycle the printer and re-close both doors to confirm the
message before troubleshooting.
Test the interlock switch
WARNING!
Do not inhibit the free movement of the interlock switch. If this
mechanism is blocked, voltage may be present when the top cover is
open.
1 Open and close the top cover. If the message remains, open and
close the side door.
2 Open the side door and push the interlock mechanism with a flatblade
screwdriver (see “Testing the interlock switches” on page 7-21
of the service manual), while running test 41 from Service Mode
(see Chapter 3).
3 If the message persists, remove the top cover and check that the
switch linkage is not bent.
4 Check that the switch connectors are in good repair. Toggle the
switches by pressing down on the metal tab over the switches.
5 If the linkage is not damaged, remove the switch assembly and test
it with an ohmmeter.
6 Replace the assembly if it is defective.
12 Close top or side door
1
• The printer’s top or side door is open or the door sensor has failed.
– Close the top or side door or replace the door sensor.
• One of the two interlock switches (MS2 or MS3) may be defective. If
the following test proves that the switches are defective, replace the
interlock switch assembly as shown in Chapter 6 of the printer
service manual.
Note
Power cycle the printer and re-close both doors to confirm the
message before troubleshooting.
Test the interlock switch
WARNING!
Do not inhibit the free movement of the interlock switch. If this
mechanism is blocked, voltage may be present when the top cover is
open.
1 Open and close the top cover. If the message remains, open and
close the side door.
2 Open the side door and push the interlock mechanism with a flatblade
screwdriver (see “Testing the interlock switches” on page 7-21
of the service manual), while running test 41 from Service Mode
(see Chapter 3).
3 If the message persists, remove the top cover and check that the
switch linkage is not bent.
4 Check that the switch connectors are in good repair. Toggle the
switches by pressing down on the metal tab over the switches.
5 If the linkage is not damaged, remove the switch assembly and test
it with an ohmmeter.
6 Replace the assembly if it is defective.
12 Close top or side door
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