Operating Mode (Status); Troubleshooting - Sony OEP-4 Service Manual

3-4. Operating Mode (Status)

The numeric value displayed in "Situation" on the TROUBLE DATA.
Head: Thermal head
Status No. Status name
0 MCS_MDSS_IDLE
1 MCS_MDSS_INIT
2 MCS_MDSS_PREHEAT
3 MCS_MDSS_COOLDOWN
4 MCS_MDSS_FEED_BEFORE
5 MCS_MDSS_HEAD_HOME
6 MCS_MDSS_FEED_HEAD_MOVE
7 MCS_MDSS_FEED
8 MCS_MDSS_FEED_WAIT
9 MCS_MDSS_PRINT_HEAD_MOVE
10 MCS_MDSS_PRINT
11 MCS_MDSS_REV_HEAD_MOVE
12 MCS_MDSS_REV
13 MCS_MDSS_EJECT_HEAD_MOVE
14 MCS_MDSS_EJECT
15 MCS_MDSS_FEEDREV_HEAD_MOVE
16 MCS_MDSS_FEEDREV
17 MCS_MDSS_RIBBON_INIT
If the hundred's digit is "1", it indicates that the error did not occur during printing but it occurred during mechanical reset.
Example) 107: Paper feed operation was performed during mechanical reset.

3-5. Troubleshooting

Head: Thermal head, FFC: Flexible flat cable
Trouble Cause
The power
A bottom plate (jamming processing port) switch is damaged. Replace S141 on the SE-755 board.
cannot be
The connector of a bottom plate (jamming processing port)
turned on.
switch is disconnected.
A switching regulator is damaged.
A power switch is damaged.
A power-related connector is disconnected.
A ribbon
A head block is not in the proper position.
cassette cannot
A gear or cam is damaged.
be inserted.
A sensor is defective.
A head block is out of position.
A ribbon rail is damaged.
A ribbon rail is out of position.
A ribbon is not properly installed in the cartridge.
OEP-4
Status
This unit is in the standby state.
This unit is in the initialization state.
The head is in the preheat state.
The head is in the cooling state.
Before paper is fed.
The head is moving to the home position.
The head is moving to the paper feed position.
Paper is being fed.
Print start is waited after paper feed.
The head is moving to the print position.
Paper is being printed.
The head is moving from the print position to the carry position.
The head is in the carry position and in the cue-up state of the next color.
The head is moving to the paper eject position.
Paper is being ejected.
The head is moving to the paper feed position.
The head is in the paper feed position and is returning paper to the tray.
The ribbon is in the initialization state.
Remedy
Confirm CN141 on the SE-755 board and CN203 on the
MA-142G board.
Replace the switching regulator.
Replace S101 on the SW-1200 board.
Confirm output connector CN202 on the secondary side of
a switching regulator.
Confirm the input connector on the primary side of a
switching regulator.
Confirm the L-side, N-side, and GND connector
connection of an AC inlet.
Turn on the power again.
Replace the gear or cam.
Confirm sensors (PH51 and PH52) on the SE-746 board.
Install the head block properly.
Replace the ribbon rail.
Install the ribbon rail properly.
Install the ribbon properly in the cartridge.
3-5