Brother MFC990CW Service Manual page 165

Inljet mfc/dcp
Hide thumbs Also See for MFC990CW:
Table of Contents

Advertisement

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
• Perform the purge operation (Function code 76) several times to
remove dust or air bubbles from its nozzles. (Refer to
Section
9.1.4.27.)
• 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
Chapter 7, Section 7.2, [ 4
• Clean the head caps and wiper of the maintenance unit with a Rubycel
stick. For the cleaning procedure, refer to
"CLEANING THE MAINTENANCE UNIT."
Printer
• 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
Chapter 9, Sections 9.1.4.33 and
• Adjust the paper feeding correction value of the paper feed roller with
Function code 58 in the maintenance mode. (Refer to
Section 7.2, [ 5
].)
• Perform the print head skew compensation with the head skew adjuster
knob. Refer to
Chapter 7, Section 7.2, [ 4
• Adjust the paper feeding correction value of the paper ejection roller
with Function code 58 in the maintenance mode. (Refer to
Section 7.2, [ 5
].)
4-40
Action to be taken
].
Chapter 8, Section 8.2
3.2.2.3.)
].
Chapter 9,
9.1.4.21.)
Chapter 7,
Chapter 7,
Confidential

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents