CTLS service check
Action Yes No
Step 1
Check for loose toner blocking the CTLS.
Is it free of any loose toner?
Go to step 2. Clean the CTLS.
Step 2
• Check the cable PCN3 for proper connection to the power supply.
• Check the CTLS cable for proper connection to the controller board.
Are they properly connected?
Go to step 3. Reseat the cables.
Step 3
Check the cable PCN3 and CTLS cable for damage.
Are they free of damage?
Replace the controller
board. See “Controller
board removal” on
page 164.
Replace the printer.
Main drive gearbox service check
Action Yes No
Step 1
Remove the main drive gearbox and check for any debris.
Is it free of debris?
Go to step 2. Remove the debris.
Step 2
Check the gears of main drive gearbox for wear or damage.
Are they free of wear or damage?
Go to step 3. Replace the main drive
gearbox. See “Main
drive gearbox
removal” on page
147.
Step 3
Check the main drive motor for proper operation:
a Remove the main drive gearbox.
Note: Do not disconnect the main drive gearbox cable.
b POR into the Diagnostics menu and perform a feed test:
Diagnostics Menu > Input Tray Tests > Feed Test >
Select any input source
c Check if the main drive motor rotates when doing the feed test.
Does it rotate when doing the feed test?
Replace the controller
board. See “Controller
board removal” on
page 164.
Replace the main drive
gearbox. See “Main
drive gearbox
removal” on page
147.
4514-420, -430
Diagnostic information
85
To Next Page
Loading...
Need help?
General
