AR-M351U, AR-M451U (serv.man19). Trouble Codes - Sharp Copying Equipment Service Manual (repair manual). Page 14

AR-M351U/M451U, AR-M355U/M455U  TROUBLE CODES  11 - 14

The machine always monitors its own status. When it detects any
abnormality or a status which requires warning, it performs the self
diag operation to display the trouble or warning message as fol-
lows:

• When the power is turned on, if the stored trouble is H3, H4, H5,

U1, U2, PF, or U6 (sub code 2, 3), it is immediately judged as a
trouble.

∗

E7-50 and 60 are not judged as a storing trouble, (Detected
every time when the power is turned on.)

Warning

Content

This message is displayed to warn 
mainly the user to inform that a 
consumable part is near life, etc. It is 
no direct relation with machine 
troubles.

Machine 
operation

The machine operation may be 
stopped and may be not.

Message 
clear

The message may be automatically 
cleared by replacement or supply of 
the consumable part, or may be 
cleared by the specified simulation 
operation.

Trouble

Content

This message is a trouble message 
related to a machine trouble.

Machine 
operation

The machine operation is stopped.

Message 
clear

This message may be automatically 
cleared by repairing the trouble, or 
may be cleared by the specified 
simulation operation.

Trouble code

Storing

Trouble cancel command 

simulation

H3, H4, H5

PCU

SIM 14

U1

ICU

SIM 13

U2

Each block

SIM 16

PF

ICU

SIM 17

U6-2, 3

PCU

SIM 15

Troubleshoot the cause.

YES

NO

Detects/analyzes

the content.

Trouble/Warning

Warning

Trouble

The machine is stopped.

The content is displayed.

Trouble/Warning

Warning

A consumable

part has reached

its lifetime.

Trouble

Replace or supply

the consumable part. 

Cancel the self-

diagnostic message with

the diagnostics

(test commands). 

Reset

Standby state

Monitors the machine

conditions.

Repair