Brother MFC260C Service Manual page 137

Problem
(10) White horizontal streaks
(11) Stained leading edge of
recording paper
(12) Overlapping or separated
lines over the whole page
(13) Overlapping or separated
lines at the trailing edge of the
recording paper
(14) Characters having shadows
(ghost)
VWXYZ
• Perform the purging operation (Function code 76) several
times to remove dust or air bubbles from its nozzles. (Refer to
Chapter 9, Section
• Replace the head/carriage unit.
• Check the paper feed-related rollers.
• Perform the print head skew compensation with the head skew
adjuster knob. Refer to
• Clean the head caps and wiper of the maintenance unit with a
Rubycel stick. For the cleaning procedure, refer to
Section 8.2 "CLEANING THE MAINTENANCE UNIT."
Printer
• Press the Ink (Ink Management) key to perform a head
cleaning operation.
• Check that the head/carriage unit is set into place.
• Check the height adjustment mechanism of the head/carriage
unit (Refer to Chapter 3, Section
• If the "head-platen gap offset" is enabled with assurance mode
switch AMS 02 (Function code 88), align the vertical print
lines (Function code 65). (Refer to
25 and 9.1.4.15.)
• Adjust the paper feeding correction value of the paper feed
roller with Function code 58 in the maintenance mode. (Refer
to Chapter 7, Section 7.2, [ 5
• Perform the print head skew compensation with the head skew
adjuster knob. Refer to
• Adjust the paper feeding correction value of the paper ejection
roller with Function code 58 in the maintenance mode. (Refer
to Chapter 7, Section 7.2, [ 5
• Adjust the paper feeding correction values of the paper feed
roller and paper ejection roller with Function code 58 in the
maintenance mode. (Refer to
• Correct the positioning error of the head/carriage unit with
Function code 63 in the maintenance mode. (Refer to
7, Section 7.2, [ 4 ].)
• Replace the PF encoder disk.
• Replace the PF encoder PCB.
4 - 3 6
Action to be taken
9.1.4.21.)
Chapter 7, Section 7.2, [ 4
3.2.2.3.)
Chapter 9, Sections 9.1.4.
].)
Chapter 7, Section 7.2, [ 4
].)
Chapter 7, Section 7.2, [ 5
].
Chapter 8,
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Chapter
Confidential