Confidential
2-73
■ Stained leading/trailing edge of recording paper
■ Overlapping lines over the whole page
< User Check >
- Check whether the recording paper being used is within 
the specification.
Step Cause Solution
1 Maintenance unit stained Clean the maintenance unit.
(refer to Fig. 2-11 (2-68))
2 Paper feeding correction not 
updated
Update paper feed correction. 
(refer to Chapter 5, Section 1.3.18 "Updating of 
Paper Feeding Correction Values (Maintenance 
mode 58)")
3 Platen defective Replace the platen.
4 Head defective Replace the head/carriage unit.
< User Check >
- Carry out head cleaning.
Step Cause Solution
1 Head inclination is not correctly 
adjusted.
Adjust the head inclination.
(refer to Chapter 4, Section 2.4 "Adjust head 
inclination")
2 Head calibration uncompleted Write the head calibration data. 
(refer to Chapter 5, Section 1.3.2 "Creating of 
Head Calibration Data and Writing it into Flash 
ROM (Maintenance mode 02)")
3 Paper feeding correction not 
updated
Update paper feed correction. 
(refer to Chapter 5, Section 1.3.18 "Updating of 
Paper Feeding Correction Values (Maintenance 
mode 58)")
4 PF encoder disk stained Clean the PF encoder disk and flushing guide.
(refer to "Precautions for Troubleshooting and/or 
Disassembly/Assembly")
5 PF encoder disk defective Replace the PF encoder disk.
6 Head defective Replace the head/carriage unit.
7 Main PCB defective Replace the main PCB.