Ricoh FT5034, Service Manual

Page: 102 / 139

PROBLEM CAUSE ACTION
STATUS "21"
(SCANNER HOME
POSITION NOT ON) 1. SCANNER DRIVE MALFUNCTION
1) SCANNER MOTOR PULLEY SCREW
UNLOCK
2) SCANNER WIRE SHORT 1. Check that the scanner is working properly.
→
If it is, check CN403-4 on the main board.
5V
→
Replace the main board.
0V
→
Replace the home position sensor.
→
If it is not, check the scanner wire or scanner motor pulley.
2. MAIN BOARD MALFUNCTION
(OPTICS CONTROL SECTION)
STATUS "22"
(SCANNER HOME
POSITION NOT OFF) 1. SCANNER DRIVE MALFUNCTION
1) SCANNER MOTOR PULLEY SCREW
UNLOCK
2) SCANNER WIRE SHORT 1. Check that the scanner is working properly.
→
If it is, check CN403-4 on the main board.
5V
→
Replace the home position sensor.
0V
→
Replace the main board.
→
If it is not, check the scanner wire or scanner motor pulley.
2. MAIN BOARD MALFUNCTION
(OPTICS CONTROL SECTION)
STATUS "23"
(NO REGISTRATION
START SIGNAL) 1. MAIN BOARD MALFUNCTION
2. SCANNER MOTOR MALFUNCTION 1. Replace the main board.
2. Check the scanner motor and replace it if necessary.
STATUS "24"
(NO HOME POSITION
SIGNAL) 1. MAIN BOARD MALFUNCTION
(OPTICS CONTROL SECTION) 1. Replace the main board.
STATUS "25"
(SCANNER MOTOR
FAILURE) 1. SCANNER MOTOR MALFUNCTION
2. MAIN BOARD MALFUNCTION
(OPTICS CONTROL SECTION)
3. 1ST SCANNER OR 2ND SCANNER
POSITION FAILURE 1. Replace the scanner motor,
2. Replace the main board.
3. Adjust the scanner position.
STATUS"28"
(LENS HOME POSITION
NOT ON)
STATUS "29"
(LENS HOME POSITION
NOT OFF)
1. LENS HOME POSITION DETECTION
MALFUNCTION
2. LENS DRIVE SECTION MALFUNCTION
3. MAIN BOARD MALFUNCTION
(OPTICS CONTROL SECTION)
4. LENS MOTOR MALFUNCTION 1. Check if the lens is moving properly.
Moving properly
Check CN403-5 on the main board.
: Lens Position at Full Size and Enlargement
→
less than 4.5V
: Lens Position at Reduction
→
more than 0.5V
If the voltage is correct, replace the main board.
If it is not, replace the lens home position sensor.
Not moving properly
Check the lens drive section.
Replace the main board.
Replace the lens motor.
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