MX-M850 (serv.man38). Section 8 Self Diagnostics Trouble Codes - Sharp Copying Equipment Service Manual (repair manual). Page 3

MX-M1100 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: Based on the auditor specifications.
U 3: When detected during other than a job, the operation is enabled with a tray other than the trouble tray.
U 4: When detected during other than a job, the operation is enabled in a section other than the trouble paper exit section.
U 5: When detected during other than a job, the operation is enabled in the OC mode.
U 6: When detected during other than a job, the operation is enabled in the OC mode / the single surface scan mode.
U 7: When detected during other than a job, the operation other than duplex color scan is enabled.
U 8: When detected during other than a job, the operation is enabled in the Black & White mode. 
* 9: Since communication is enabled, reception can be transferred.
* 10: Trouble display message is displayed in 2 lines. (Example: Ready to copy. F2 trouble)
* 11: When FIERY (EFI) option is installed, PCL, GDI will not operate. (Machine specifications) (Exclusive)
* 12: Only FIERY (EFI) option list print (self print) is disabled.
[Trouble mode process]
• Machine operation enabled under some conditions.

The operation except for the trouble mode is enabled (READY) and only the setting of the disabled mode is enabled, and operation disable
is informed by a message. (NOT READY in this case)
(Display) A dialog is displayed when a trouble occurs. For the mode where operations are enabled, [OK] button is added to the message.
When operations are disabled, [OK] button is not displayed, and the message is displayed until the trouble is cancelled.
* For U1, 2, 3, 5, 6 perform the following procedures. (USP4691317 made by X)
• When a trouble is detected during a job, the machine operation is terminated. (Trouble display / without [OK] button)
• When a trouble is detected during other than a JOB, the trouble display is not made and the trouble position cannot be selected. 

(The display is not turned off. Machine/Button)

• Troubles which disable the machine operations

The trouble display is always made, and all the modes cannot be set.

[Writing to the trouble memory]
When a trouble of the same kind occurs, Sim. 26-35 is used to select whether the trouble is written into the trouble memory or not. When this 
simulation is set, the trougle is written into the trouble memory uncoditionally. 
(Sim. 26-35)
0: Only once. If same as the previous one, it is not saved. (Default)
1: Any time. Though same as the previous one, it is saved.

After-process trouble

PCU

F0

U4

U4

U4

U4

U4

U4

U4

U4

*9

{

Inserter trouble (except for 
communication trouble)

F1 (61)

U3

{

{

{

{

U 3

U 3

U 3

*9

{

Other troubles

EE (EL, EU)

{

{

{

{

{

{

{

{

{

Process control trouble 
(PCU detection)

F2 (31)

{

 

*10

{

{

{

{

{

{

{

{

Double-feed detection trouble

FF (00)

{

{

{

{

{

{

{

{

{

Connection trouble 
(SCU detection)

SCU

E7 (70, 75), A0 (22)

✕

✕

✕

✕

✕

✕

✕

✕

✕

SCU color system troubles 
(SCU detection)

UC (02)

U 8

U 8

U 8

U 8

U 8

{

{

{

{

SCU color system troubles 
(DSPF detection)

UC (12)

U7

U7

U7

U7

U7

{

{

{

{

Anti-copy system

UC (20)

✕

✕

✕

✕

✕

{

{

{

{

Anti-copy system 
(DSPF detection)

UC (30)

U 6

U 6

U 6

U 6

U 6

{

{

{

{

EEPROM system

U2 (80, 81)

✕

✕

✕

✕

✕

{

{

{

{

Scanner section general 
troubles (mirror motor, lens, 
copy lamp)

L1, L2, L3, F5

✕

✕

✕

✕

✕

{

{

{

{

CCD general troubles 
(shading, etc.)

E7 (10, 11, 14)

✕

✕

✕

✕

✕

{

{

{

{

RSPF/DF trouble

U5

U 5

U 5

U 5

U 5

U 5

{

{

{

{

SPF back surface scanning 
section troubles

E6 (10, 11, 14)

U 6

U 6

U 6

U 6

U 6

{

{

{

{

Double-feed detection trouble

FF (10)

{

{

{

{

{

{

{

{

{

Process control trouble 
(Only history is left.) 
(PCU detection)

PCU

E7(35), F2 (39, 47, 58), 
L4 (15)

{

{

{

{

{

{

{

{

{