MUTOH Rockhopper 3 - Pf - Paper Feed Errors

Troubleshooting
19 AP-74700 – Rev. 1.0 – 10/03/2008
2.3 PF - PAPER FEED ERRORS
¾ E065 - PF Motor Err
¾ E067 - PF Encoder Err
¾ E069 - PF Timeout Err
¾ E071 - PF OverCurrent
¾ E083 - PF2 OverCurrent
The Paper-Feed motor is failing or the electronics doesn’t receive an encoder-signal from the PF sensor
correctly.
The electronics wants to move the Paper Feed system (PF). The driver IC on the mainboard provides power
to the X-motor (1). Therefore the X-motor starts to turn, resulting in a PF movement (2). PF movement is
detected via the encoder-sensor (3), and gives feedback, back to the electronics.
This closed-loop system is fully controlled in the electronic circuit of the mainboard. It regulates the direction,
electrical current and the speed of the carriage extremely precisely.
Mainboard
PF-X-motor
X-Encoder
Forward movement
Grid Roller
Backward movement
Grid Roller
PF Encoder Disk
2
1
3
Step 1 : Power supply to motor from electronics
Step 2 : Mechanical movement X encoder
Step 3 : X encoder gives feedback to mainboard