4  Checking and Performing Printer Adjustments
59
CL4NX/CL6NX Service Manual
4.11
Adjusting the Timing Belt Tension
Required tool:
• Phillips screwdriver (JIS #2 or equivalent)
1 Make sure that the printer is in power off mode, then disconnect the power cord from 
the AC outlet.
2 Remove the left housing cover from the printer.
Refer to Section 5.1.1 Remove the Left Housing Cover for details.
3 Disconnect the motor connector . from 
the main (CONT) PCB.
4 Remove four screws 3 attaching the 
gearbox to the printer.
5 Loosen the screw $ of the tension 
bracket /.
Note
Do not remove the screw $.
1