Vertical Light Bands Check - Lexmark MS312 Service Manual

Actions
Step 4
Check the imaging unit contact block (A), including the white and
red wires, for damage or improper installation.
Is the imaging unit contact block free of damage and properly
installed?
Step 5
Replace the power supply. See
page 252.
Does the problem remain?

Vertical light bands check

Actions
Step 1
Check if the printer is using a genuine and supported Lexmark
toner cartridge.
Note: If the printer is using a third‑party cartridge, refer the users
to their cartridge supplier.
Is the printer using a genuine and supported toner cartridge?
Step 2
Install a genuine and supported toner cartridge.
Does the problem remain?
"Power supply removal" on
Diagnostics and troubleshooting
62
Yes No
Go to step 5. Contact the next
level of support.
Contact the next The problem is
level of support. solved.
Yes No
Go to step 3. Go to step 2.
Go to step 3. The problem is
solved.
4514-330