Breakdown Sequence; Breakdown Mode List; Process Control Trouble Operation Table - Sharp MX-M550U Service Manual

D. Breakdown sequence

(1) Breakdown mode list

There are following cases of the breakdown mode.
kind of trouble
(DSPF breakdown)
Scanner section breakdowns
(Mirror motor, lens, copy
lamp)
FAX board breakdown
FAX power OFF
Network error
Staple breakdown
Paper feed tray breakdown
(Process control breakdown)
PCU section breakdowns
(Motor, fusing section, etc.)
After-process breakdown
Inserter trouble (excluding
communication trouble)
Laser breakdown
HDD breakdown
CCD breakdowns
(Shading, etc.)
CIS breakdowns
(Shading, etc.)
Scanner communication
trouble
PCU communication trouble
FAX backup battery voltage
fall
HDD registration data sum
error
Thermistor trouble (trouble
history)
(The machine cannot be operated.)
Memory
External communication
disable (RICA)
Image memory trouble,
decode error
Incompatibility check error
Controller fan motor trouble
* For FAX communication, refer to the sheet of "(3) Call request and Callin."
* The machine may be operated under some conditions.
1: When detected except when in a job, the machine can be operated in the OC mode.
2: Can be operated except in the staple mode.
3: When detected except in a job, the machine can be operated except with the breakdown tray.
4: Can be operated with some restriction on the image quality depending on the destination. (Low density print)
* Refer to the process control trouble operation table below.
5: When detected except in a job, can be operated except in the trouble paper exit section.
6: When detected except in a job, can be operated in the single surface scan mode.
7: Can be operated except in the inserter tray, if the error is detected in the standby mode.

* Process control trouble operation table

Troubl
e Error content
code
F2-31 Process control sensor gain adjustment failure
F2-32 Mark detection failure
F2-37 Mark sensor gain
adjustment failure
Judgment
Trouble code
block
Scanner U5
Scanner L1, L3, U2 (80, 81)
MFP control/ F6, F7
FAX
MFP control
MFP control CE
MFP control F1 (10)
PCU F3, U6 (LCC)
PCU F2 (31, 32, 37)
PCU C1, C2, C3, H2, H3, H4, H5, L4
(excluding L4-30), L8, U2
(90, 91), F2, F4
PCU F1
PCU F1 (61, 62)
PCU E7 (02 only), L6
MFP control E7 (03)
Scanner E7 (10, 11, 12, 14)
Scanner E6 (10, 11, 14)
MFP control E7 (80)
MFP control E7 (90)
MFP control U1 (01, 02)
MFP control U2 (50)
PCU F2 (39, 46, 47, 48)
MFP control U2 (00, 11, 12, 22, 23)
MFP control U7, PF
MFP control E7 (01, 06)
MFP control/ E7 (50, 55, 56, 57, 60, 65, 66, 67)
PCU
MFP control L4-30
Operation
Machine stop
Low density
copy
Machine stop
MX-M700N SELF DIAG AND TROUBLE CODE 8 – 2
Copy read
(including
interrupt)
1
✕
2
3
4
✕
5
7
✕
✕
6
✕
✕
✕
✕
✕
✕
✕
/SEC
Operation enable mode
FAX Email FAX
Print
send receive print
1 1
✕ ✕
✕ ✕
✕ ✕
✕
2
3
4
✕ ✕
5
7
✕ ✕
✕ ✕ ✕ ✕
6 6
✕ ✕
✕ ✕ ✕ ✕
✕ ✕
✕ ✕
✕ ✕ ✕ ✕
✕ ✕ ✕ ✕
✕ ✕ ✕ ✕
✕ ✕ ✕ ✕
✕ ✕ ✕ ✕
Notification
List
to
print
FASThost
✕
✕
✕
2 2
3 3
4 4
✕
5 5
7 7
✕
✕
✕
✕
✕
✕
✕
✕ ✕