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RICOH FT4480
3. Dip Switches Circuit diagrams&Service manuals
- Main Board -
DIP 101
DIP SWITCH NORMAL FUNCTION
101-1 --- Lead edge registration adjustment
101-2 --- Lead edge registration adjustment
101-3 --- Lead edge registration adjustment
101-4 --- Lead edge registration adjustment
101-5 --- Lead edge blank margin adjustment
101-6 --- Lead edge blank margin adjustment
101-7 --- Lead edge blank margin adjustment
101-8 --- Lead edge blank margin adjustment
(Lead edge regist./blank margin adjustment interval = 1.0 mm per step.
See the adjustment procedure.)
DIP 102
DIP SWITCH NORMAL FUNCTION
102-1 OFF Scanner free run
102-2 --- Vertical magnification adjustment
102-3 --- Vertical magnification adjustment
102-4 --- Vertical magnification adjustment
(Vertical magnification adjustment interval = 0.2% per step. See the
vertical magnification adjustment procedure.)
DIP 201
DIP SWITCH NORMAL FUNCTION
201-1 OFF Toner supply mode (ON: fixed, OFF: detect)
201-2 ON Toner supply amount (Note 1)
201-3 OFF Toner supply amount (Note 1)
201-4 OFF Image density adjustment (Note 2)
201-5 ON Image density adjustment (Note 2)
201-6 OFF Increase bias (+30 V; Color)
201-7 OFF Increase bias (+90 V)
201-8 OFF ID sensor LED ON
2-5
15 MARCH 1987
NOTE 1: Dip SW 201-1, 2, 3
201-2 201-3 Detect Mode Fixed Mode
(201-1 OFF) (201-1 ON)
OFF OFF 15% 3.5%
ON OFF 30% 7.0%
OFF ON 45% 10.5%
ON ON 60% 14.0%
NOTE 2: Dip SW 201-4, 5
201-4 201-5 Image Density ID sensor Bias
OFF OFF Light (least toner) 470V
ON OFF Lighter (less toner) 440V
OFF ON Normal 500V
ON ON Dark {more toner) 530V
DIP 202
DIP SWITCH NORMAL FUNCTION
102-1 OFF Sorter instructions
102-2 OFF Auto cassette shift disable
102-3 OFF Not used
102-4 OFF Not used
2-6
15 MARCH 1987
- Operation Panel -
DIP 1
DIP SWITCH NORMAL FNUCTION
1-1 OFF Drum conditioning
1-2 OFF Free run
1-3 OFF Jam detection disable
1-4 OFF Auto reset disable
1-5 OFF Beeper sound disable
1-6 OFF Copy counter count up/down
(ON: down, OFF: up)
1-7 OFF Manual image density mode priority
(ON: manual mode, OFF: ADS mode)
1-8 OFF SP Mode
- DF Main Board -
DIP 101
101-1 101-2 101-3 101-4 FUNCTION
ON OFF OFF OFF Normal mode
ON OFF OFF OFF Free run
ON ON OFF ON Belt speed adjustment (VR103)
ON ON ON ON All indicator on
2-7
15 MARCH 1987
4. Service Program Mode (SP Mode) Operation
The service program mode is used to check and change electrical data or
adjustment values by the service engineer.
- DATA CHANGE MODE -
1. Remove the DIP SW cover and turn on DIP SW1-8 on the operation
panel. (The Service Call indicator will start blinking.)
2. Enter the desired SP Mode No. using the numeral keys.
(The entered No. is displayed in the copy counter.)
3. Press the Enter key.
(The SP Mode No. is shifted into the Magnification indicator and the
actual data is displayed in the copy counter.)
4. If the data is correct, press the Enter key.
5. Enter the desired data using numeral keys.
(The data entered is displayed in the copy counter.)
6. Press the Enter key to memorize the new data.
(The copy counter indicates "1", the Ready indicator turns on and
the Start key turns green.)
7. Turn off the DIP SW1-8.
(The Service Call indicator goes off.)
- DATA CHECK MODE -
1. Perform the steps 1 and 2 of the data change mode.
2. Press the Enter key.
(The data is displayed in the Magnification indicator.)
3. Perform the adjustment procedure for the SP Mode No.55 and 56. if
necessary.
4. Turn off the DIP SW 1-8.
NOTE: - The SP Mode can be cleared by pressing the Clear mode key or
turning off the main switch.
2-8
15 MARCH 1987
5. Service Program Mode Table
Mode No. Function Data Factory Remarks
Setting
5 Exposure Lamp Exposure lamp ON/OFF 0: ON 0
OFF 1: OFF
9 ADS ADS voltage adjust- - For use with SP
ment Mode "56".
Refer to the ADS
adjustment procedure.
11 All Indicators Turns on allindica- - -
ON tors on the operation
panel.
15 Auto Reset Selects auto reset 0: 1 min. 0 Auto Reset time
Time of 1 or 3 minutes. 1: 3 min. can be switched
OFF by DIP SW 1-40N.
20 Feed Station Selects feed station 0: LCT 0 Refer to the NOTE 1.
Priority (LCT) priority. 1: SP 22
21 APS Priority Selects APS or manual. 0: APS 0 If DF is installed.
1: Manual
22 Feed Station Pri- selects feed station 0: 1st 0 Refer to the NOTE 1.
ority (1st, 2nd, priority. 1: 2nd
and 3rd cas- 2: 3rd
sette)
23 DF Original Enables originals of 0: OFF 0 ADF Mode only.
Size various sizes to be 1: ON
fed from the same
stack.
2-9
15 MARCH 1987
Mode No. Function Data Factory Remarks
Setting
28 Auto Sort Mode Selects Sort Mode 0: Manual 0 Sorter and DF must
automatically in ADF 1: Auto be installed.
mode.
29 Fusing Unit Selects fusing unit 0: No idling 0 Copier will idle
Idle idling mode 1: idling for 10 seconds.
Refer to the NOTE 3.
35 Toner Supply Changes toner supply 0: Standard 0 Standard:
interval. 1: Increase Every 10 copies,
a) ID sensor checks 0.75V.
every 5 copies.
b) Toner end level
changes to 0.65V.
49 Fusing Tempera- Changes fusing temp. 0: Standard 0 178 - 184