2 ] Copyboard Screen Scrolling Related; 3 ] Recording Paper Feeding Related - Brother CB200 Service Manual

[ 2 ] Copyboard screen scrolling related

Trouble
(1) Copyboard screen not scrolled.
(2) No home positioning of the
copyboard screen.
(3) Abnormal noise during scrolling
of the copyboard screen.
(4) Scrolling of the copyboard screen
not smooth.
(5) Low abnormal noise made
periodically.
(6) Images (drawn on the copyboard
screen) rubbed with any other
parts.

[ 3 ] Recording paper feeding related

Trouble
(1) Recording paper not fed.
Printer-copyboard interface cable
l
Relay PCB
l
WB motor and its harness
l
Pipe holders and their related parts (Are the gears
l
broken?)
Set the scanning compensation parameters stored in
l
the EEPROM. (Function code 55 in Subsection
4.3.1.)
CIS units
l
Two black HP marks on the copyboard screen
l
Main PCB
l
Pipe holders and their related parts (Are the gears
l
broken?)
Pipe holder springs (Are they set in place?)
l
Black sheets attached to the piper holders (Are they
l
pasted without any gap?)
Sheet backup board (Is it secured with the screws?)
l
Upper pipe for looseness (Is the CIS frame
l
deformed?)
Pipes for contamination with grease or sticky dust
l
Flanges and ends of the pipe gears for crack or small
l
bumps
Spacers sandwiched between the support frames and
l
side frames (Are they set with the triangle marks
facing up and pointing towards the white sheet? Refer
to Chapter III, Subsection 3.1.2, [ 1 ] and [ 2 ], pages
III-22 and III-26.)
Recording paper (Any slack?)
l
Printer motor and its harness
l
Drive unit (Are the gears broken?)
l
Main PCB
l
V - 7
Check:
Check: