Action
Yes
No
Step 10
a
Check the imaging unit contact spring for damage and
contamination.
b
Make sure that the imaging unit contact spring is in proper
contact with the HVPS.
Is the imaging unit contact spring properly installed, and free of
damage and contamination?
Contact the next
level of support.
The problem is
solved.
Step 11
a
Make sure that the transfer roller is properly installed and free
of damage and contamination.
b
Make sure that the HVPS contact spring is properly connected
to the transfer roller.
c
Make sure that the transfer roller spring is properly installed.
d
Enter the Diagnostics menu, and then select
Advanced Print
Quality Samples
.
Does the problem remain?
Go to step 12.
The problem is
solved.
Step 12
a
Reseat the transfer roller.
b
Enter the Diagnostics menu, and then select
Advanced Print
Quality Samples
.
Does the problem remain?
Go to step 13.
The problem is
solved.
Step 13
Replace the transfer roller. See
Does the problem remain?
Go to step 14.
The problem is
solved.
Step 14
a
Clean the printhead lens.
b
Reseat the two printhead cables at both ends.
c
Perform a print test.
Does the problem remain?
Go to step 15.
The problem is
solved.
Step 15
a
Make sure that the printhead cables are properly connected.
b
Check the printhead for proper installation and damage.
Is the printhead properly installed and free of damage?
Go to step 17.
Go to step 16.
Step 16
Replace the printhead. See
“Printhead removal” on page 251
.
Does the problem remain?
Go to step 17.
The problem is
solved.
3400-48x
Diagnostics and troubleshooting
74
Summary of Contents for MB2236
Page 16: ...3400 48x 16 ...
Page 18: ...3400 48x 18 ...
Page 203: ...Scan SE Scanner Info 3400 48x Service menus 203 ...
Page 204: ...3400 48x 204 ...
Page 229: ...6 Disconnect all cables 7 Remove the controller board 3400 48x Parts removal 229 ...
Page 239: ...7 Disconnect the cable and then detach the ADF link 3400 48x Parts removal 239 ...
Page 240: ...8 Remove the control panel 3400 48x Parts removal 240 ...
Page 241: ...Front door removal 1 Detach the door strap 2 Remove the front door 3400 48x Parts removal 241 ...
Page 246: ...3400 48x Parts removal 246 ...
Page 250: ...11 Remove the top cover 3400 48x Parts removal 250 ...
Page 258: ...4 Remove the two pick rollers 3400 48x Parts removal 258 ...
Page 262: ...6 Detach the scanner stand and then remove the fax card cover 3400 48x Parts removal 262 ...
Page 265: ...11 Remove the ADF scanner from the flatbed scanner 3400 48x Parts removal 265 ...
Page 266: ...3400 48x 266 ...
Page 274: ...3400 48x 274 ...
Page 277: ... Scanner glass Scanner glass pad 3 Close the scanner cover 3400 48x Maintenance 277 ...
Page 279: ...Assembly 1 Covers 3400 48x Parts catalog 279 ...
Page 281: ...Assembly 2 Paper path 3400 48x Parts catalog 281 ...
Page 283: ...Assembly 3 Drive 3400 48x Parts catalog 283 ...
Page 285: ...Assembly 4 Sensors 3400 48x Parts catalog 285 ...
Page 287: ...Assembly 5 Electronics 3400 48x Parts catalog 287 ...
Page 289: ...Assembly 6 Scanner 3400 48x Parts catalog 289 ...
Page 294: ...3400 48x 294 ...
Page 312: ...3400 48x Index 312 ...
Page 314: ...3400 48x Part number index 314 ...
Page 316: ...3400 48x Part name index 316 ...