4 ] Print Head Mechanism - Brother DCP6690CW Service Manual

Defective component
Maintenance unit
Head caps or wiper
Tube pump
Purge cam switch
Cap lift cam switch

[ 4 ] Print head mechanism

Defective component
Head/carriage unit and
carriage PCB ASSY
- Any of the following images may appear on the printout: ---
- The tube pump will not draw out ink from the head
nozzles.
- The purge cam switch will not detect the purge cam ON/
OFF timing.
- The cap lift cam switch will not detect the ON/OFF
timing of the cap lift cam.
- Any of the following images may appear on the printout: ---
4-55
Result
Result
Error codes
---
50, 51, 52
70, 71, 72
Error codes
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