Toshiba SFB0031 Service Note

Publish Date: 2000/08/31

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BSI No.: SFB0031
Subject: Changing the Service Manual

Model: DP120F, DP125F

Category Field Application Unit

Modification/Correction of Service

Manual

Factory Application:

To be applied immediately Operator's Manual/Service

CONTENT

1. Document No.

For TABS31200001
For except TABS31200003

2. Reason for Change
To correct the LCD prompts and keystrokes for entering each Service Mode operation.

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Manual

Page 4-59, 60 2. Service Settings in Test Mode
Page 8-133 3.2 Fuser Temperature Settings
Page 8-134 3.3 Edge Registration
Page 11-15 1.4 SERVICE MODE
Page 11-16 1.5 FUNCTION TEST
Page 11-27, 28 1.6 MAINTENANCE
Page 11-36 1.7 SERVICE LIST

Attached Files

DP120_125F SM Chap11.pdf DP120_125F SM Chap08.pdf DP120_125F SM Chap04.pdf

2. Service Settings in Test Mode

The Service Settings in Test Mode are to be operated by service technicians only . The unique
requirements of each user can be set. (When a PC Board is replaced, these settings must be
performed on the new PC board so that the same operations can be used. Therefore, output a
Function List, Dial Number List, etc. before starting Service Settings in Test Mode.)

Single use service mode operation:

NOTE: When you enter the service mode using this procedure, the facsimile automati-

cally returns to the standby mode after each test is completed.

(1) Press the following keys in order:

[MENU] [ * ] [#] [ * ] [ * ]

Change to

MMM-DD-YY DDD HH:MM

RESIDUAL MEMORY 100%

service mode.

→

(2) Use the [ ↑ ] or [ ↓ ] keys to select the “2.MAINTENANCE” item row, then press the

[ENTER] key, or press [2] on the dial key pad. The screen below is displayed.

1.FUNCTION TEST

2.MAINTENANCE

3.SERVICE LIST

01.MEMORY CLEAR

02.SET FUNCTION

03.MODEM WRITE

04.SET CONT. LEVEL ↓

05.ERR COUNTER SHIFT

06.EDGE REGISTRATION

07.DOC. TRANSMISSION

08.FUSER SETTING

(3) Use the [ ↑ ] or [ ↓ ] keys, or numeric keys, to select “02.SET FUNCTION” item row, then

press the [ENTER] key.

SET FUNCTION

Displays the numeric value currently set (cannot be changed).

FUNC0 =XXXXXXXX
XXXXXXXX

↑↑

Bit 7 Bit 0

←
← Displays the numeric value to be entered now (can only be

altered at the point of the blinking cursor).

Bit 7 is the left most digit as shown on the LCD display. By entering 1 or 0 in the bit
corresponding to the desired function, you can change the setting of that function. Press
the [ENTER] key to store the new setting and advance to the next function.

NOTE: Use the [ENTER] key to advance to the next function. Use the [>] key to

move to the next bit. Use the [<] key to move to the previous bit, if already
at bit 7 (the left digit), the [<] key will move to the previous function.

March 2000 © TOSHIBA TEC 4-59 DP120F/DP125F Function Settings

Continuous service mode operation:

(1) Turn the power switch ON while holding the dial keys [1] and [3] down.

Change to

PLEASE WAIT

service mode.

*** SERVICE MODE ***

RESIDUAL MEMORY 100%

→

RESIDUAL MEMORY 100%

(2) Press the [MENU] key. The screen below is displayed.

1.COMM. OPTIONS

2.LISTS

3.INITIAL SETUP

4.DEFAULT SETTINGS ↓

3.INITIAL SETUP

4.DEFAULT SETTINGS

5.MENU LIST

9.TEST MODE

(3) Use the [ ↑ ] or [ ↓ ] keys to select the “9.TEST MODE” item row, then press the [ENTER]

key, or press [MENU], [9] from the service mode screen. The screen below is displayed.

1.AUTO TEST

2.INDIVIDUAL TEST

3.TEST RESULT LIST

4.FUNCTION TEST ↓

3.TEST RESULT LIST

4.FUNCTION TEST

5.MAINTENANCE

6.SERVICE LIST

NOTE: When the [1] and [3] keys are depress simultaneously upon power on, the

machine will enter continuous service mode and will remain in this mode
until power is turned off. To access the va rious service mode functions,
press the [MENU] and [9] keys (in sequence) and then select the desired
function. Remember to power the unit off once you’ve completed your
tests.

DP120F/DP125F Function Settings 4-60 March 2000 © TOSHIBA TEC

3.2 Fuser Temperature Settings

When the fuser or main PBA is replaced, the fuser temperature setting procedure must be
performed.

Adjustment

Set the fuser rank (temperature rank) to the value indicated on the label adhered on the fuser as
shown in the right.

(1) Tur n the power switch ON while holding the dial keys [ 1 ] and [ 3 ] down to enter the

service mode .

(2) Press the keys in the following order to enter the fuser temperature setting mode.

[MENU] → [ 9 ] → [ 5 ] → [ 0 ] → [ 8 ]
(3) Select the fuser rank by pressing the [ ↑ ] or [ ↓ ] key.
(4) Press the [ENTER] key to complete the setting and return to the standby mode.
(5) Tur n the power switch OFF to exit to the service mode.

NOTE: Make sure not to use the moist paper for the test print.

Fuser

Label

08-03-04

Fig. 8-3-4

March 2000 © TOSHIBA TEC 8-133 DP120F/DP125F Removal/Replacement

3.3 Edge Registration

The starting print position is determined by the “Lead Edge” and “Side Edge” offset data stored
in memory. Do this adjustment when the main PBA is replaced or when MEMORY CLEAR is
performed. Do it also when the LSU is replaced if necessary.

Adjustment

Adjust the Lead Edge and Side Edge so that four lines are printed in each of the top and bottom,
and three lines are printed in each of the left and right of the PRINT TEST (PATTERN 1) as
shown in the figure. The Lead Edge offset represents the distance from the top edge of the page.
The Side Edge offset represents the distance from the left edge of the page. Using the Edge
Registration procedure, the lead edge offset positions can be adjusted from -8.0mm to +8.0mm
and side edge offset positions can be adjusted from -6.0mm to +8.0mm, in increments of 0.5mm.

(1) Turn the power switch ON while holding the dial keys [ 1 ] and [ 3 ] down to enter the

service mode .
(2) Press the keys in the following order to perform the print test.

[MENU] → [ 9 ] → [ 4 ] → [ 0 ] → [ 2 ] → [ 1 ]
(3) Press the keys in the following order to enter the edge registration mode.

[MENU] → [ 9 ] → [ 5 ] → [ 0 ] → [ 6 ]
(4) Use the [ ↑ ] or [ ↓ ] key to set the LEAD EDGE (upper side), then press the [ENTER] k ey.
(5) Use the [ ↑ ] or [ ↓ ] key to set the SIDE EDGE (left side).
(6) Press the [ENTER] key to complete the setting and return to the standby mode.
(7) Print the test pattern again to check the print position.
(8) Repeat this procedure until the correct starting print position is achieved.
(9) Turn the power switch OFF to exit to the service mode.

Four lines

Three lines

Three lines

Four lines

Fig. 8-3-5

DP120F/DP125F Removal/Replacement 8-134 March 2000 © TOSHIBA TEC

08-03-05

1.4 SERVICE MODE

Service mode provides the service technician with various tests and functions that will alter the
performance of the machine. As such, general users should not be given access to this mode.
By entering the service mode, you will gain access to Function Tests, Maintenance mode, and
Service Lists.

Service Mode Operation Overview

These are two methods for entering the service mode.

Single use service mode operation:

NOTE: When you enter the service mode using this procedure, the facsimile automati-

cally returns to the standby mode after each test is completed.

(1) Press the following keys [MENU], [ * ], [#], [ * ] and [ * ] in sequence.

Change to

MM-DD-YY DDD HH:MM

RESIDUAL MEMORY 100%

service mode

→

1.FUNCTION TEST

2.MAINTENANCE

3.SERVICE LIST

(2) Select the desired service mode function using the [ ↑ ] or [ ↓ ] keys and press [ENTER]

or press the dial key ([1], [2], or [3]) corresponding to the function.

Continuous service mode operation:

(1) Turn the power switch ON while holding the dial keys [1] and [3] down.

Change to

PLEASE WAIT

RESIDUAL MEMORY 100%

service mode.

→

*** SERVICE MODE ***

RESIDUAL MEMORY 100%

(2) When you change to the service mode, the following three test items are added after

“3. TEST RESULT LIST” of “9. TEST MODE.”

1.AUTO TEST

2.INDIVIDUAL TEST

3.TEST RESULT LIST

4.FUNCTION TEST ↓

3.TEST RESULT LIST

4.FUNCTION TEST

5.MAINTENANCE

6.SERVICE LIST

NOTE: When the [1] and [3] keys are depress simultaneously upon power on, the

machine will enter continuous service mode and will remain in this mode
until power is turned off. To access the va rious service mode functions,
press the [MENU] and [9] keys (in sequence) and then select the desired
function. Remember to power the unit off once you’ve completed your
tests.

March 2000 © TOSHIBA TEC 11-15 DP120F/DP125F Troubleshooting

1.5 FUNCTION TEST [MENU], [9], [4]*

(* The keystrokes given reflect continuous Service Mode operation, they will vary slightly for
single use operation.)

The FUNCTION TEST Mode is used to check various functions of this machine.

01.OPE. PANEL TEST

02.PRINT TEST

03.MODEM TEST

04.SENSOR TEST ↓

05.SRAM TEST

06.DRAM TEST

07.CLOCK IC TEST

08.SCANNER TEST ↓

08.SCANNER TEST

09.CODEC TEST

10.NET. BOARD TEST

11.PCL BOARD TEST

<Remarks> “10. NET. BOARD TEST” and “11. PCL BOARD TEST” are displayed only

when the GF-1010 (Optional NIC) and GA-1020 (Optional PCL board) are
installed, respectively.

1.5.1 OPE. PANEL TEST [MENU], [9], [4], [01]

This test is used to check the LCD, LED and scanner LED array, and each key on the Opera­tion panel.

(1) Use the [ ↑ ] or [ ↓ ] key to select the “01. OPE. PANEL TEST”, and then press the

[ENTER] key.
(2) All the LED's are lit. Check that each LED turns on and off normally . All the dots of the LCD

is turn on and off.

←→

(3) Press the [START] key, and “S” will appear on the displa y and the cursor automatically will

move upper left to lower right. Check if the LCD display is normal.

Press the [START] key

_

→

S

_

(4) Press all the keys except the [STOP] key, and the status of each key will be displayed.

#

DP120F/DP125F Troubleshooting 11-16 March 2000 © TOSHIBA TEC

← Pressing key status (When [#] key pressed)

1.6 MAINTENANCE [MENU], [9], [5]*

(* The keystrokes given reflect continuous Service Mode operation, they will vary slightly for
single use operation.)

The MAINTENANCE mode is used to perform memory initialize / write, and special setting of
this machine.

01.MEMORY CLEAR

02.SET FUNCTION

03.MEMORY WRITE

04.SET CONT. LEVEL ↓

05.ERR COUNTER SHIFT

06.EDGE REGISTRATION

07.DOC. TRANSMISSION

08.FUSER SETTING

1.6.1 MEMORY CLEAR [MENU], [9], [5], [01]

This function is used to initialize data in memory. This procedure must be performed when the
Main PBA is replaced or installed. Data cannot be recovered after the memory clear; therefore,
be sure to print the appropriate lists beforehand.

(1) Use the [ ↑ ] or [ ↓ ] key to select "01.MEMORY CLEAR," and then press the [ENTER]

key.

MEMORY CLEAR

1.PIX MEMORY

2.EXCEPT USER AREA

3.ALL

(2) Use the [ ↑ ] or [ ↓ ] key to select desired item, and then press the [ENTER] key.

MEMORY CLEAR

2.EXCEPT USER AREA

3.ALL

4.USER AREA

(3) When initialization is complete, the display returns to the standby mode screen.

PIX MEMORY

Initializes only the image memory (PIX memory.) The memory chips to be initialized are

the DRAM chips on the Main PBA and Memory PBA (DP120F only.)

EXCEPT USER AREA

Initializes the memory portion except the data registered by the user. The memory chips

to be initialized are DRAM's and SRAM's.

ALL

Initializes all the data.

<Remarks> Following a shortcut operation is prepared for memory clear of ALL.

•Tur n the power ON while Depressing the [1], [3] and [*] keys at the same
time.

USER AREA

Initializes only that data registered by the user. The memory chips to be initialized are
SRAM's.

March 2000 © TOSHIBA TEC 11-27 DP120F/DP125F Troubleshooting

<Remarks> Following two shortcut operations are prepared for partial memory clears.

•Counter Clear
Tur n the power ON while Depressing the [1], [3] and [#] keys at the same
time.

•Pix & Job Clear
Turn the power ON while Depressing the [*] and [#] keys at the same time.

<Remarks> When the country setting operation is completed, the data in memory is cleared.
<Remarks> Relations between memory clear options and data to be cleared:

Item Job PIX Function Communi- Error Terminal Phone- Number of Number of

data parameter cation logging ID and book total scanned total printed

journal Name pages pages
PIX MEMORY x x xxx x x
EXCEPT

USER AREA
ALL xx
USER AREA xxx xx
[1], [3], [*] xx
[1], [3], [#] x x x x x x x
[*], [#] x xx x x
[0], [2]

(Country setting)

xx x x

xx

O : To be cleared X : Not to be cleared

DP120F/DP125F Troubleshooting 11-28 March 2000 © TOSHIBA TEC

1.7 SERVICE LIST [MENU], [9], [6]*

(* The keystrokes given reflect continuous Service Mode operation, they will vary slightly for
single use operation.)

Service list can be printed by service technicians as part of maintenance operations to confirm
machine settings or communication management records (protocol, total errors, function, and
so on.) The contents can be printed b y selecting a menu item. Any of the items listed below can
be selected by scrolling the highlighted item using the [ ↑ ] or [ ↓ ] key, or by performing the
keystrokes indicated for each list.

01.PROTOCOL TRACE

02.TOTAL ERRORS

03.FUNCTION

04.DRUM HISTORY ↓

02.TOTAL ERRORS

03.FUNCTION

04.DRUM HISTORY

05.MEMORY DUMP

1.7.1 PRO T OCOL TRACE [MENU], [9], [6], [01]

This list is output to confirm communication protocol. In the output list, the result of the most
recent (last) facsimile communication is recorded. The following items are to be recorded.

Signal send/Receive time (TIME)

The time to start sending or receiving the signal is indicated as “MM:SS.”

Signal send/Receive (SEND/RCV)

Signals sent by this machine are indicated as “S” and signals received by this machine
are indicated as “R.” The high-speed tr aining signal is indicated as “TCF” and high-speed
image signal is indicated as “PIX.”

Facsimile Control Field (FCF DATA)

The first and second FCF commands are printed.

Facsimile Information Field (FIF DATA)

If there is an information field, its contents are printed in either HEX, BIN or TEL f ormat. In
“TEL” format, LSB and MSB in “HEX” format are reversed.

Convert FIF to ASCII (ASCII)

FIF is converted to ASCII code before being printed.

(1) Use the [ ↑ ] or [ ↓ ] key to select the "01.PROTOCOL TRACE", and then press the

[ENTER] key.
(2) Use the [ ↑ ] or [ ↓ ] key to select the line, and then press the [ENTER] key.
(3) After completing the list output, the display returns to the standby mode screen. For a

sample list, refer to "12. APPENDIX" on page 12-1.

NOTE: The firmware version (installed in this machine) is listed in the upper

right corner of the Protocol Trace List.

DP120F/DP125F Troubleshooting 11-36 March 2000 © TOSHIBA TEC