MX-6201N, MX-7001N (serv.man20). SELF DIAGNOSIS TROUBLE CODES SECTION - Sharp Copying Equipment Service Manual (repair manual). Page 33

MX-7001N  SELF DIAG AND TROUBLE CODE  8 – 33

 

 

 

 

 

 

 

Trouble content

Malfunction of the LCC tray lock mechanism is 
detected.

Section

PCU

Case 1

Cause

Tray lock mechanism trouble

Check and 
remedy

Check the tray lock mechanism.

Case 2

Cause

Connector and harness connection trouble

Check and 
remedy

Check connection of the connector and the 
harness.

Case 3

Cause

Tray lock detection sensor trouble, LCC control 
PWB trouble

Check and 
remedy

Replace the tray lock detection sensor and the 
LCC control PWB.

Trouble content

Detection of LCC connection which is incompatible 
with the MX-6201N/7001N series.

Section

PCU

Case 1

Cause

Connection of the LCC, which is incompatible with 
the MX-6201N/7001N series is detected.

Check and 
remedy

Connect the MX-LCX2/MX-LCX3.

Trouble content

Communication trouble between the MFP and the 
serial vendor.

Section

MFP

Case 1

Cause

Connector disconnection or breakage

Check and 
remedy

Check connection between the MFP and the serial 
vendor, and turn ON and OFF the machine and the 
vendor.

Trouble content

Trouble content Serial vendor trouble.

Section

MFP

Case 1

Cause

Serial vendor trouble

Check and 
remedy

“Err. xx” is displayed on the operation panel of the 
vendor. (xx: Detail code)
The generating conditions and the cancel method 
differ depending on the detail code. Refer to the 
Operation Manual of the vendor. 

Trouble content

CPT-ASIC access error 
(When the ASIC does not operate normally.)

Section

SCU

Case 1

Cause

1)

CPT-ASIC abnormality

2)

SCU PWB abnormality

Check and 
remedy

Turn OFF/ON the power several times. If the 
trouble still occurs, replace the SCU PWB or the 
CPT-ASIC.

Trouble content

Communication error between SCU and DOCC
Communication line test error when turning on the 
power or after canceling an exclusion simulation.

Section

SCU

Case 1

Cause

Connector or harness connection error or 
disconnection

Check and 
remedy

Check the connector and harness in the 
communication line.

Case 2

Cause

Control (SCU) PWB trouble. DOCC PWB trouble.

Check and 
remedy

Replace the SCU PWB or the DOCC PWB.

Case 3

Cause

Malfunction due to electrical noises.

Check and 
remedy

Turn OFF/ON the power to electrical cancel the 
trouble.

Trouble content

When the data security kit ROM (BOOT, PROG1, 
2) is installed, the DOCC PWB is not detected.

Section

SCU

Case 1

Cause

Connector or harness connection error or 
disconnection

Check and 
remedy

Check the connector and harness in the 
communication line.

Case 2

Cause

Control (SCU) PWB trouble. DOCC PWB trouble.

Check and 
remedy

Replace the SCU PWB or the DOCC PWB.

Case 3

Cause

DOCC PWB not-installed

Check and 
remedy

Install the DOCC PWB.