Brother MFC845CW Manual De Servicio página 117

Problem
(1) Completely blank
(2) Random color
(3) All black
At the scanner
Check that the document is placed facing in the correct direction.
In ADF scanning, is the document placed face down in the
document tray?
In flat-bed scanning also, is the document placed face down on the
scanner glass?
Check the following components:
- Scanner cover (CIS flat cable)
- Main PCB
At the printer
•
Check the ink cartridges. If any cartridges have run out of ink,
replace them.
•
Press the Ink (Ink Management) key to perform a head
cleaning operation.
•
Check the connection of the head flat cables on the main PCB.
(If either of those cables is broken or damaged, replace.)
•
Check the head property data. (Refer to
9.1.4.17.)
•
Replace the head/carriage unit.
•
Replace the main PCB.
•
Clean the head caps and wiper of the maintenance unit with a
Rubycel stick. For the cleaning procedure, refer to
Section 8.1 "CLEANING THE MAINTENANCE UNIT."
•
Replace the maintenance unit.
•
Check that the drain tubes are not bent.
At the scanner
Check the following components:
- Scanner cover (CIS flat cable)
- Main PCB
At the printer
Check the following components:
- Head/carriage unit and carriage PCB ASSY
- Main PCB
4-30
Action to be taken
Chapter 9, Section
Chapter 8,
Confidential