Sharp Mx 2300n Service Manual

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 2
D. Breakdown sequence
(1) Breakdown mode list
There are following cases of the breakdown mode.
Kind of troubleJudgment 
blockTrouble codeOperatable mode
Copy scan 
(including 
interruption)Scan 
pushScan pullScan 
To  
HDDFA X  
sendFAX 
printPrintList 
printNotification 
to FAST 
host
FAX board trouble (1 line) ICU F6{{{{U 1U 1{{U 1
FAX board trouble (2 
lines)F7{{{{U 1U 1{{U 1
HDD trouble E7 (03)✕ ✕ ✕ ✕✕✕✕✕{
SCU communication 
troubleE7 (80),...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 3 {: Operation enabled,✕: Operation disabled
U 1: The operation is enabled in a line other than the trouble line.
U 2: When detected during other than a job, the operation is enabled with a tray other than the trouble tray.
U 3: When detected during other than a job, the operation is enabled in a section other than the trouble paper exit section. * When, however,
the right tray is set.
U 4: When detected during other than a job, the operation is enabled...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 4
(2) Power ON trouble detection sequence.
• When the power is turned ON and each trouble of H3, H4, H5, U1, U2, PF, U6 (09) is stored, it is judged as a trouble immediately.
2. Trouble code list
Trouble code
Trouble code content RemarksTrouble 
detectionMechanism Option Electricity FAX Supply
Main 
codeSub 
code
A0 01 PCU ROM abnormality PCU●
02 SCU ROM abnormality Scanner●
10 Controller ROM error MFP●
11 IF version discrepancy (CTL-PCU) MFP●
12 IF...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 5
E7 28 LSU control ASIC connection abnormality PCU●
29 LSU-ASIC frequency abnormality PCU●
50 Engine connection trouble PCU●
55 PWB information sum error (Engine detection) PCU●
60 Controller connection trouble (Engine detection) MFP●
61 Controller connection trouble (Engine) MFP●
62 Controller connection trouble (Scanner) MFP●
65 PWB information sum error (Controller detection) MFP●
70 Scanner connection trouble SCU●
75 PWB information sum error...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 6
F2 75 Toner cartridge CRUM error (CYAN) PCU●
76 Toner cartridge CRUM error (MAGENTA) PCU●
77 Toner cartridge CRUM error (YELLOW) PCU●
78 Registration exclusive image density sensor trouble 
(Transfer belt surface reflection ratio abnormality)PCU●
80 Half tone process control 1st patch reference value 
trouble (BLACK)PCU●
81 Half tone process control 1st patch reference value 
trouble (CYAN)PCU●
82 Half tone process control 1st patch reference value...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 7
L4 02 Paper feed motor lock trouble PCU●
04 Developing motor trouble (BLACK) PCU●
05 Developing motor trouble (COLOR) PCU●
06 Transfer belt separation position sensor trouble PCU●
11 Shift motor trouble PCU●
30 Controller fan/HDD fan motor trouble MFP●
31 Paper exit cooling fan trouble PCU●
32 Power cooling fan/ozone exhaust fan trouble PCU●
L6 10 Polygon motor lock detection LSUcnt●
L8 01 No full wave signal PCU●
02 Full wave signal width abnormality...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 8
3. Details of trouble code
 
A0-01 PCU ROM abnormality
 
A0-02 SCU ROM abnormality
 
A0-10 Controller ROM error
 
A0-11 IF version discrepancy (CTL-PCU)
 
A0-12 IF version discrepancy (CTL-SCU)
 
A0-20 Machine level error (CTL detection)
 
A0-21 Machine level error (PCU detection)
 
A0-22 Machine level error (SCU detection)
 
CE-00 Communication error other than CE-
01 – 08
 
CE-01 Network controller trouble
 
CE-02 Not-specified mail/FTP server error...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 9
 
CE-04 FTP server account name or authenti-
cation password input error
 
CE-05 FTP server directory input error
 
CE-06 POP3 server access error
 
CE-07 POP3 server authentication check
error
 
CE-08 POP3 server timeout error
 
E7-00 System memory access error
* When E7-00 is in the following combination where system mem-
ory Slot 2 (inside) and Slot 1 (outside) operate normally but a
hard error occurs. (Combination of system memory (slot 1, slot 2)...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 10
 
E7-01 System data trouble
 
E7-03 HDD trouble
 
E7-05 Local memory access error
* Combination where local memory Slot 4 (inside) and Slot 3 (out-
side) operate normally (Refer to E7-09) but a hard error occurs.
 
E7-06 Decode error trouble: Compression
decode error (A compression file can-
not decompressed.)
 
E7-08 Local memory specifications error
* The error occurs when a DIMM which is not recommended by
Sharp. 
 
E7-09 Local memory combination...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 11 * When the following combination (E7-09) where operation is not
performed properly is used. Local memory (slot 3, slot 4) combi-
nation
 
E7-10 Shading trouble (Black correction)
 
E7-11 Shading trouble (White correction)
 
E7-14 SCAN-ASIC trouble
 
E7-20 LSU BD detection trouble
 
E7-21 LSU LD deterioration trouble
 
E7-28 LSU control ASIC connection abnor-
mality
 
E7-29 LSU-ASIC frequency abnormality
No.Local memory Operation guarantee
When turning...