Troubleshooting By Symptom - Canon Selphy DS700 Service Manual

2-4. Troubleshooting by Symptom

The power does not turn on.
The power turns off immediately after power-on.
The print head is not recognized.
The print head does not return to the home position.
Faulty operation
Strange noise.
Printing stops mid-way.
Multiple sheets feed.
Paper does not feed.
Paper feed problems
Paper feeds at an angle.
No printing, or no color ejected.
Printing is faint, or white lines appear on printouts even after print
head cleaning.
Line(s) not included in the print data appears on printouts.
Paper gets smeared.
Unsatisfactory print
quality
A part of a line is missing on printouts.
Color hue is incorrect.
Printing is incorrect.
Non-ejection of ink.
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Symptom
1 - 6
Solution
Replace the
- AC adapter, or
*1
- logic board ass'y .
Remove and re-install the print
head, or replace the
- print head, or
*1
- logic board ass'y .
Remove foreign material, or
attach a removed part if any.
Replace the logic board ass'y
Replace the
- sheet feed unit, or
- output tray unit.
Remove foreign material, or
replace the
- sheet feed unit, or
- output tray unit.
Remove foreign material, or
adjust the paper guide, or
replace the
- sheet feed unit, or
- output tray unit.
Replace the
- ink tank,
*2
- print head ,
*1
- logic board ass'y , or
- purge unit.
Remove and re-install the print
head, or replace the
- ink tank,
*2
- print head ,
- purge unit, or
*1
- logic board ass'y .
Feed several sheets of paper,
perform bottom plate
*3
cleaning , or
clean the paper path with
cotton swab or cloth.
Replace the
- ink tank, or
*2
- print head .
Replace the
- ink tank, or
*2
- print head , or
perform print head alignment.
Replace the logic board ass'y
Replace the
*1
.
*1
.