Sharp MX-5500N / MX-6200N / MX-7000N (serv.man24) Peripheral ▷ View online
MX-CFX1 OPERATIONAL DESCRIPTION 5 – 7
6. Paper jam/error detection
A. List of Paper jams
B. Error detection
(1) EEPROM errors
Explanation:
1) Timeout error
1) Timeout error
The EEPROM is being programmed even after a predeter-
mined time period (150 msec) has passed.
mined time period (150 msec) has passed.
2) Writing error
The written data does not match the read data even when writ-
ing and reading are retried.
ing and reading are retried.
3) Reading error
Checking pieces of data read from three sources results in
mismatch even when checking is retried.
mismatch even when checking is retried.
(2) Reverse sensor adjustment error
Explanation:
1) When the DA output exceeds the upper limit
1) When the DA output exceeds the upper limit
Even when the DA output is increased, the AD input value
does not fall within the appropriated range.
does not fall within the appropriated range.
2) When the DA output is less than the lower limit
Even when the DA output is decreased, the AD input value
does not fall within the appropriated range.
does not fall within the appropriated range.
C. Alarm detection
Explanation:
An alarm is issued because the size of a sheet in the tray cannot be
correctly detected when both the sub tray pullout detection sensor
and the sub tray retraction detection sensor are turned OFF.
Indication:
Shown by a LED on the operator panel of the inserter or of the
main unit as an inserter alarm.
An alarm is issued because the size of a sheet in the tray cannot be
correctly detected when both the sub tray pullout detection sensor
and the sub tray retraction detection sensor are turned OFF.
Indication:
Shown by a LED on the operator panel of the inserter or of the
main unit as an inserter alarm.
Description
Detection timing
Explanation
Not arrived at registration
sensor
sensor
At a time of separating a sheet
A paper jam is detected if the registration sensor is not turned ON, which means absence of a
sheet, even when the paper feed motor has been driven for a fixed distance after the pickup
roller starts to lower.
sheet, even when the paper feed motor has been driven for a fixed distance after the pickup
roller starts to lower.
Not arrived at timing sensor
At a time of leading-edge registration
A paper jam is detected if the timing sensor is not turned ON, which means absence of a
sheet, even when the registration rollers (paper feed motor) have been driven for a fixed
distance after they are started.
sheet, even when the registration rollers (paper feed motor) have been driven for a fixed
distance after they are started.
Not arrived at paper exit
sensor
sensor
At a time of paper exit in through mode
A paper jam is detected if the paper exit sensor is not turned ON by the leading edge of a
sheet, which means absence of a sheet, even when the transport motor has been driven for a
fixed distance after the main unit sends a paper exit command.
sheet, which means absence of a sheet, even when the transport motor has been driven for a
fixed distance after the main unit sends a paper exit command.
At a time of paper exit in normal paper
feed mode
feed mode
A paper jam is detected if the paper exit sensor is not turned ON, which means absence of a
sheet, even when the leading edge of a sheet has traveled a fixed distance after it reaches the
paper exit rollers (horizontal transport rollers 2).
sheet, even when the leading edge of a sheet has traveled a fixed distance after it reaches the
paper exit rollers (horizontal transport rollers 2).
At a time of paper exit in reverse paper
feed mode
feed mode
A paper jam is detected if the paper exit sensor is not turned ON, which means absence of a
sheet, even when a sheet has been transported a fixed distance by the transport motor after
the reverse sensor is turned ON, which means presence of a sheet.
sheet, even when a sheet has been transported a fixed distance by the transport motor after
the reverse sensor is turned ON, which means presence of a sheet.
Not arrived at reverse sensor
At a time of entering reverse section
A paper jam is detected if the reverse sensor is not turned ON, which means absence of a
sheet, even when the reverse motor has been driven for a fixed distance after leading-edge
registration.
sheet, even when the reverse motor has been driven for a fixed distance after leading-edge
registration.
At a time of exiting from reverse
section
section
A paper jam is detected if the reverse sensor is turned ON, which means absence of a sheet,
even when the reverse motor has been driven for a fixed distance while a sheet is exiting from
the reverse section.
even when the reverse motor has been driven for a fixed distance while a sheet is exiting from
the reverse section.
Stay at registration sensor
At a time of paper exit in normal paper
feed mode
feed mode
A paper jam is detected if the registration sensor is not turned OFF, which means presence of
a sheet, even when the paper feed motor has been driven for a predetermined amount after a
sheet reaches the starting position of leading-edge registration.
a sheet, even when the paper feed motor has been driven for a predetermined amount after a
sheet reaches the starting position of leading-edge registration.
At a time of entering reverse section in
reverse paper feed mode
reverse paper feed mode
Stay at timing sensor
At a time of paper exit in normal paper
feed mode
feed mode
A paper jam is detected if the timing sensor is not turned OFF, which means presence of a
sheet, even when the paper feed motor has been driven for a fixed distance after the
registration sensor is turned OFF, which means absence of a sheet.
sheet, even when the paper feed motor has been driven for a fixed distance after the
registration sensor is turned OFF, which means absence of a sheet.
At a time of entering reverse section in
reverse paper feed mode
reverse paper feed mode
Stay at paper exit sensor
At a time of paper exit in through mode
A paper jam is detected if the paper exit sensor is not turned OFF, which means presence of a
sheet, even when the transport motor has been driven for a predetermined amount after the
paper exit sensor is turned ON, which means presence of a sheet.
sheet, even when the transport motor has been driven for a predetermined amount after the
paper exit sensor is turned ON, which means presence of a sheet.
At a time of paper exit in normal paper
feed mode
feed mode
A paper jam is detected if the paper exit sensor is not turned OFF, which means presence of a
sheet, even when the transport motor has been driven for a fixed distance after the trailing
edge of a sheet reaches the paper exit rollers (horizontal transport rollers 2).
sheet, even when the transport motor has been driven for a fixed distance after the trailing
edge of a sheet reaches the paper exit rollers (horizontal transport rollers 2).
At a time of paper exit in reverse paper
feed mode
feed mode
Stay at reverse sensor
At a time of entering reverse section
A paper jam is detected if the reverse sensor is not turned OFF, which means presence of a
sheet, even when the reverse motor has been driven for a fixed distance after the timing
sensor is turned OFF, which means absence of a sheet.
sheet, even when the reverse motor has been driven for a fixed distance after the timing
sensor is turned OFF, which means absence of a sheet.
At a time of exiting from reverse
section
section
A paper jam is detected if the reverse sensor is not turned OFF, which means presence of a
sheet, even when the reverse motor has been driven for a predetermined amount after the
reverse sensor is turned ON, which means presence of a sheet.
sheet, even when the reverse motor has been driven for a predetermined amount after the
reverse sensor is turned ON, which means presence of a sheet.
MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 1
MX-CFX1
Service Manual
[6] DISASSEMBLY AND
ASSEMBLY
1. Paper feed separation unit
A. Pickup roller & paper feed roller
1) Open the top cover.
2) Remove the cover A.
3) Turning the unit A, remove the roller guide B.
4)
Remove the pickup roller and paper feed roller.
A: Pickup roller
B: Paper feed roller
A: Pickup roller
B: Paper feed roller
B. Torque limiter & separation roller
1)
Open the top cover.
2)
Remove the cover A.
3)
Turn the unit A to remove.
4)
Remove the torque limiter and the separation roller.
A: Horizontal pass roller 2
B: Timing roller
A: Horizontal pass roller 2
B: Timing roller
A
A
B
A
B
A
A
A
B
MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 2
2. Paper feed unit
A. Horizontal pass roller 1 and registration roller
Paragraph in Sub Section.
1) Open the top cover.
2) Open the mount cover.
1) Open the top cover.
2) Open the mount cover.
3) Remove the front cover.
4) Remove the rear cover.
5)
Remove the top cover.
A: Horizontal pass roller 1
B: Registration roller
B: Registration roller
B. Horizontal pass roller 2 and timing roller
1)
Open the top cover.
2)
Remove the front cover and rear cover.
3)
Remove the operating unit.
B
A
1
1
2
3
MX-CFX1 DISASSEMBLY AND ASSEMBLY 6 – 3
4) Remove the cover A.
5) Remove the tray unit.
6) Remove the cover A.
A: Horizontal pass roller 2
B: Timing roller
B: Timing roller
C. Reverse roller and reverse sensor
1)
Open the top cover.
2)
Remove the front cover and rear cover.
3)
Remove the guide A to remove the stay B.
4)
Remove the reverse unit.
5)
Remove the cover A.
A: Reverse sensor
B: Reverse roller
B: Reverse roller
A
1
2
2
3
A
A
B
1
2
A
B
1
2
2
3
A
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