Samsung SF 5100, SF5100P Troubleshootin

5. Maintenance & Troubleshooting

5-1 Preventative Maintenance

The cycle period outlined below is a general guideline for maintenance. The example list is for an average usage of 50 transmitted and received documents per day. Environmental conditions and actual use will vary these factors. The cycle period given below is for reference only.

Samsung Electronics 5-1

COMPONENT CLEANING CYCLE REPLACEMENT CYCLE SOLUTION

SCANNER

PRINTER

ADF Rubber ADF Roller White Roller CIS Cartridge Pickup Roller Feed Roller Transfer Roller Fuser Driver

6 Months 1 Year As Needed As Needed

5,000 Pages 10,000 Pages 10,000 Pages

2,500 Pages 60,000 Pages 60,000 Pages 60,000 Pages 60,000 Pages 60,000 Pages

5-2 Diagnostics

This section describes methods and procedures to isolate the cause of a malfunction in the machine. This machine displays diagnostic information on the LCD. In addition, it can perform a series of tests that allow the machine to observe individual machine functions.

5-2-1 Error Messages

Error Message Description Solution

5-2 Samsung Electronics

Maintenance & Troubleshooting

DOCUMENT JAM

DOOR OPEN

LINE ERROR

LOAD DOCUMENT

LSU ERROR

The loaded document has jammed in the feeder.

Clear the document jam.

The top cover is not securely latched.

Press down on the cover until it

clicks in place.

Your unit cannot connect with the remote machine, or has lost contact because of a problem on the phone line.

Try again. If failure persists, wait an

hour or so for the line to clear, then

try again.

Or, turn the ECM mode on.

You have attempted to set up a sending operation with no document loaded.

Load a document and try again.

There occurs a problem in the LSU (Laser Scanning Unit).

Unplug the power code and plug it

back in. If the problem still persists,

please call for service.

FUSER ERROR

There occurs a problem in the fuser unit.

Unplug the power code and plug it

back in. If the problem still persists,

please call for service.

MEMORY FULL

The memory is full.

Either delete unnecessary documents,

or retransmit after more memory

becomes available, or split the

transmission into more than one

operation.

JAM/NO CARTRIDGE

Recording paper has jammed inside the unit, or the toner cartridge is not installed.

Clear the jam, or install the

cartridge

NO ANSWER

The remote machine has not answered after all the redial attempts.

Try again. Make sure the remote

machine is operational.

NO. NOT ASSIGNED

The one-touch or speed dial location you tried to use has no number assigned to it.

Dial the number manually with the

keypad, or assign a number.

Samsung Electronics 5-3

Maintenance & Troubleshooting

Error Message Description Solution

NO PAPER

The recording paper has run out. Load the recording paper.

OVER HEAT

The printer part in your unit has overheated.

Please wait until it cools down.

If you cannot solve the problem, please

call for service.

PAPER JAM 2

POLLING ERROR

POWER FAILURE

WARMING UP

Jammed paper still remains inside the unit.

Clear the jam.

The remote fax machine you want to poll is not ready to respond to your poll.

Or When setting up to poll another

fax machine, you have used an incorrect poll code.

The remote operator should know

in advance that you are polling and

have their fax unit loaded with the

original document.

Enter the correct poll code.

A power failure has occurred.

If documents have been stored in the

memory, a ‘Power Failure Report’ will

be printed automatically when the

power is restored.

TONER EMPTY

The printer is warming up and is off-line.

Wait until the printer is on-line.

The toner cartridge has run out. The machine stops.

Replace with a new toner cartridge.

TONER LOW

The toner is almost empty.

Take out the toner cartridge and

gently shake it. Using this way, you

can temporarily re-establish the

print quality.

RETRY REDIAL ?

The machine is waiting for a specified time interval to redial a previously busy station.

You can press Start to immediately

redial, or Stop to cancel the redial

operation.

RECEIVE ERROR

A fax has not been received successfully.

A problem with the facsmile

communications has occurred.

Try again.

SEND ERROR

Your fax has not gone through successfully.

A problem with the facsmile

communications has occurred. Ask

the sender to try again.

PAPER JAM 0

Recording paper has jammed in the paper feeding area.

Press Stop and clear the jam.

5-4 Samsung Electronics

Maintenance & Troubleshooting

SAMPLE OF APROTOCOL DUMP LIST

5-2-2 Maintenance List

A number of reports can be printed from the fax machine within the test mode. The protocol list all contain detailed information which may be required when contacting technical support.

To printout the protocol list :

1. Get into the Tech mode by pressing Setup, #, 1, 9, 3, 4.

2. In Tech mode, press Report/Help.

3. Press or repeatedly until you find the Protocol List. When you find ‘PROTOCOL LIST’, press ENTER. SAMPLE OF APROTOCOL DUMP LIST

S NSF 61005820003380140200001302090018010000

S/R FCF FIF DATA ASCII

S CSI 2020202020202020202020202O20202020202020

S CSI 202020202020202020202022O202020220202020 R TSI 2020202020202020202020202O20202020202020

S DIS 00000000 01110111 00010111 00100010

S DIS 00000000 01110111 00010111 00100010 R DCS 00000000 01100001 00010101 00000000 R TSI 2020202020202020202020202O20202020202020

R DCS 00000000 01100001 00010101 00000000 S CFR R MPS S MCF S DCN

S FTT

S NSF 61005020003380140200001302090018010000

PROTOCOL DUMP LIST OCT-20-1999 06:35

Sending/Receiving

Name of signal (Facsimile Control Field)

Facsimile Information Field data described in hexdecmal code

FIF data described in ASCII code

Samsung Electronics 5-5

Maintenance & Troubleshooting

When you replace the main board to new one, the information on the toner state is cleared. Therefore, you should update the information to the new board by entering the exact value of total toner count and specifying the toner cartridge installed currently is shipped with the machine or new. If not, ‘TONER LOW/EMPTY’ message may not appear when the toner is run out.

1. In Tech mode, print ‘SYSTEM DATALIST’. The list includes the total toner count and CRU state information.

- TOTAL TONER COUNT: The total number of

the dots used to print up to current time.

- CRU STATE: The page number which the toner cartridge can print. (The yield of a new toner cartridge is approximately 2,500 pages and that of the cartridge supplied with the machine is approximately 1.000 pages.)

2. Replace Main board.

3. In Tech mode,

3-1) Press Setup, and find ‘MAINTENANCE’ by

pressing repeatedly or , then press Start/Enter.

3-2) When ‘TONER COUNT’ is displayed in LCD,

press Start/Enter, and enter the value of the total toner count in the system data list.

3-3) When you are prompted to enter CRU

STATE, press Start/Enter.

3-4) When you see ‘[1.1000 2.2300]’ in LCD, select

the value of the CRU state in the system data list.

4. In Tech mode, print ‘SYSTEM DATALIST’ and make sure that the toner information is updated.

5-3 Print Quality

5-4 Note for replacing Main board

No Roller Abnormal image period Kind of abnormal image

1 OPC Drum 75.4mm

2 Charge Roller 37.7mm Black spot

3 Supply Roller 26.8mm Horizontal density band

4 Develope Roller 31.6mm Horizontal density band

5 Transfer Roller 47.1mm Black side contamination/transfer fault

6 Heat Roller 50.1mm Black spot, White spot

7 Pressure Roller 50.2mm Black side contamination

•White spot on black image

•Black spot

5-6 Samsung Electronics

Maintenance & Troubleshooting

Vertical black line and band

YES

OK after

replacing the LSU?

Remove part on the paper path causing the trouble

OK after replacing

developer?

Any obstacles on

the developer blocking

the laser beam.

OK after

removing the

obstacles?

Any obstacles ON

mirror lens of LSU and

laser path?

Remove the obstacles.

Replace the LSU

Replace the developer

END

YES

5-5 Troubleshooting Flow Chart

Samsung Electronics 5-7

Maintenance & Troubleshooting

Check connection to computer or replace controller

Take out the cartridge and prepare the tester for electronic connection

Repair or replace the GND terminal

Check the path between video controller, engine board and HVPS. Repair or replace the defective component or board

The mirror in LSU might be misplaced so the light path to the OPC deviates ->Repair or replace LSU or remove any deffective matters in the machine

Self test

pattern prints?

No image?

Self testing

is possible via

Tech Mode?

Is the OPC

terminal of machine

is well-connected

to Frame?

Does the

video data line to

LSU transit to High/Low

when printing?

Re-test after replacing the conector or Main board

A on

YES

No Image

5-8 Samsung Electronics

Maintenance & Troubleshooting

Transfer roller might be out of its location

-> Locate the roller into its place This could occurrs when he power of LSU is low or

the density is low due to the obstacles on the window

-> Replace LSU or clean the window

Trnasfer

voltage OK? (on the

transfer roller

shaft)

Is the

connection of

OPC GND and Frame Ground

correct? (less than

10 ‰)

Are the

connection terminal

and connection

correct?

Repair or replace terminal

Replace HVPS or repair defective component

Is the connection

terminal OK?

Check the connection of

frame Ground and OPC GND

Replace HVPS or repair defective component

Repair or replace terminal

Developing

(-350V) and supplying

(-550V) voltage

are OK?

Does the

counter indicate over

the toner’s guarranty

life

Replace the toner cartridge

YES

Samsung Electronics 5-9

Maintenance & Troubleshooting

Replace the developer

YES

END

YESYES

YES

Replace the HVPS

Ok after setting to the

normal mode?

YES

Remove the obstacles

YES

Clean transfer roller and gear holder

YES

Replace the LSU

Replace the developer

Is it not over

the guaranty life of dot

counter?

Is the toner save

mode or the light mode

is selected?

Is the high voltage

normal? (charging,

developing,

transfer)

Any obstacles on the

gab between high voltage

terminal and

developer?

Transfer roller

works OK?

OK after replacing

LSU?

HVPS works OK?

Light image

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