3 ] Head/Carriage Unit Drive And Purge Mechanisms - Brother MFC990CW Service Manual

[ 3 ] Head/carriage unit drive and purge mechanisms

Defective component
Head/carriage unit
Carriage motor
CR encoder strip
Ink cartridge PCB
Paper width sensor
(Media sensor)
- Any of the following images may appear on the printout: ---
- The head/carriage unit will not be able to travel
normally.
- When the power is turned on, the "Init Unable 3*"
appears on the LCD.
- The following image may appear on the printout:
- The head/carriage unit will not be able to travel
normally.
- Any of the following images may appear on the printout:
- The "Cannot Print" message will appear even though
there is ink.
- Even though the ink has run out, the "Cannot Print"
message will not appear.
- A paper jam will occur.
- Print on the platen without paper.
- The recording paper width will be incorrectly detected.
4-48
Result Error codes
30, 31, 32, 33
30, 31, 32, 33
26, 27, 28, 29
80, 82
---
17
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