Konica Minolta DB-209 How to use

KONICA CORPORATION
TECHNOLOGY SUPPORT CENTER
TOKYO JAPAN
SERVICE HANDBOOK
DB-209/210
2001.02
Ver. 3.0

CN26NF1780
KONICA CORPORATION
COPYRIGHT ©2001

CONTENTS
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
CONTENTS
SAFETY AND IMPORTANT WARNING ITEMS .............
Refer to the 7020/25/30/35 service handbook on page C-1
1. OUTLINE
DB-209/210 PRODUCT SPECIFICATIONS .......... 1-1
[1] Type ........................................................ 1-1
[2] Functions ................................................ 1-1
[3] Machine data .......................................... 1-1
[4] Maintenance ........................................... 1-1
[5] Machine environment ............................. 1-1
CENTER CROSS SECTION .................................. 1-2
DRIVE SYSTEM DIAGRAM ................................... 1-3
2. UNIT EXPLANATION
PAPER FEED SECTION ........................................ 2-1
[1] Composition ............................................ 2-1
[2] Mechanisms ........................................... 2-1
[3] Paper feed and no paper detection
control ..................................................... 2-2
[4] Tray up and down control ....................... 2-4
[5] Paper size detection control ................... 2-5
[6] Control of paper-level detection .............. 2-6
[7] Jam detection control ............................. 2-6
3. DISASSEMBLY/ASSEMBLY
DISASSEMBLY/ASSEMBLY .................................. 3-1
[1] Removing and reinstalling paper
feed tray .................................................. 3-1
[2] Removing and reinstalling the paper
feed unit .................................................. 3-1
[3] Replacing the feed roller rubber and
double feed prevention rubber/upper ....... 3-2
[4] Repacing the double feed prevention
rubber/lower ............................................ 3-3
METHOD
REPLACEMENT
PA G E
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DATE
Feb. 2001
REVISED EDITION
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3 DIS./ASSEMBLY

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DB-209/210
1-1
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
DB-209/210 PRODUCT SPECIFICATIONS
[1] Type
Type: Tray paper feed
(Front loading)
[2] Functions
Paper size:
11 ×17, 8.5 ×14,
8.5 ×11R, 8.5 ×11,
5.5 ×8.5, F4, A3,
A4R, A4, A5R
A3, B4, A4, A4R, B5,
A5R, 11 ×17,
8.5 ×11, 8.5 ×11R,
F4
U.S.A. Europe and others
Paper type: 60g/m2to 90g/m2high quality
paper
Maximum
Paper capacity: 500 Sheets x 2 Trays
(80g/m2)
[3] Machine data
Power: DC24V/5V (supplied from
main body)
Power consumption: Max.40VA (When the PTC
heater is not in use.)
Weight: Approx. 25.9kg
Machine
Dimensions: Length 580mm
Depth 595mm
Height 311mm
[4] Maintenance
Maintenance: Same as main body
Machine Life: Same as main body
[5] Machine operation environment
Temperature: 10 to 30˚C
Humidity: 20 to 80%RH
Note : Specifications are subject to change without
notice.
METHOD
REPLACEMENT
PA G E
1-1
DATE
Feb. 2001
REVISED EDITION
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DB-209/210
1-2
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
CENTER CROSS SECTION
Paper lift-up plates
Paper lowering levers
Feed rollers
Double feed prevention
roller/lower
Conveyance
rollers
Double feed prevention
rollers/upper
1
METHOD
REPLACEMENT
PAGE
1-2
DATE
May 2000
REVISED EDITION
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1

DB-209/210
1-3
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
DRIVE SYSTEM DIAGRAM
Paper feed motor (M100)
1st paper feed SD (upper) (SD101)
1st paper feed SD (lower) (SD102)
Conveyance roller
Double feed prevention roller/upper
Double feed prevention roller/lower
Conveyance roller
1
METHOD
REPLACEMENT
PA G E
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DATE
May 2000
REVISED EDITION
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2-1
DB-209/210
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
PAPER FEED UNIT
[1] Composition
[2] Mechanisms
Mechanism Method
Paper feed Paper feed roller
Paper lifting Paper lift-up plate
Double feed Torque limiter
prevention
Tray loading Front loading
1st paper feed Paper feed SD
Feed roller
Jam processing Release of pressure on
double feed prevention roller
No paper detect Photosensor
Paper size detect Size setting unit
Paper conveyance Roller conveyance
Conveyance drive Gears
Paper feed door
Size setting units
Double feed prevention roller/lower
Feed roller
Double feed prevention roller/upper
METHOD
REPLACEMENT
PA G E
2-1
DATE
May 2000
REVISED EDITION
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2-2
DB-209/210
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
[3] Paper feed and no paper detection
control
24VDC
24VDC
PGND
PGND
5VDC
SGND
M100 CONT
SD101 CONT
SD102 CONT
PS103
PS108
DB SELECT1
DB SELECT2
M100
M100
SD101
SD102
PS103
PS108
MAIN BODY
24VDC
PGND
M100 CONT
EM
24VDC
24VDC
P.GND
M100 LD
M100 CLK
M100 CONT
5VDC
S.GND
24VDC
SD101 DRIVE
24VDC
SD102 DRIVE
SGND
PS103 SIG
5VDC
SGND
PS108 SIG
5VDC
PFUDB
DB-210
DB-209
Paper feed is carried out by transmitting the drive of the
M100 (Paper feed motor) to the upper and lower paper
feed rollers and to the feed rollers. When feed starts,
SD101 (1st. paper feed SD (upper)) or SD102 (1st. paper
feed SD (lower)) raises and lowers the feed roller and
contacts the paper.
Drive of the M100, SD101 and SD102 is carried out by
PFUDB (PFU drive board)and controlled by the main
body.
No paper detection is carried out with PS103 (No paper
detect PS (upper)) and PS108 (No paper detect PS
(lower)) and controlled by the main body via the PFUDB.
1. Operation
a. Paper feed operation timing (upper tray)
(1) 1st. sheet start
A specified time after start-button is turned ON
(2) 2nd. sheet start
A specified time after 1st. sheet SD101 is turned ON
(3) OFF timing
A specified time after SD101 is turned ON
b. Paper feed operation timing (lower tray)
(1) 1st. sheet start
A specified time after start-button is turned ON
(2) 2nd. sheet start
A specified time after 1st. sheet SD102 is turned ON
(3) OFF timing
A specified time after SD102 is turned ON
c. No paper detection
If paper in the tray is used up, PS103 or PS 108 goes
OFF and the no paper detection signal of each tray is
sent to the main body via the PFUDB.
METHOD
REPLACEMENT
PAGE
2-2
DATE
Feb. 2001
REVISED EDITION
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2-3
DB-209/210
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
2. Signals
a. Input signals
(1) PS103 SIG (PS103 →PFUDB)
Upper tray paper/no paper detection signal
[H] :no paper
[L] : with paper
(2) PS108 SIG (PS108 →PFUDB)
Lower tray paper/no paper detection signal
[H] :no paper
[L] : with paper
(3) SD101 CONT (MAIN BODY →PFUDB)
SD101 ON/OFF control signal from main body
[H] :OFF
[L] : ON
(4) SD102 CONT (MAIN BODY →PFUDB)
SD102 ON/OFF control signal from main body
[H] :OFF
[L] : ON
b. Output signals
(1) M100 CONT (PFUDB →M100)
M100 drive control signal
[H] :M100 OFF
[L] :M100 ON
(2) M100 CLK (PFUDB →M100)
M100 revolution control board clock signal
(3) SD101 (PFUDB →SD101)
SD101 drive control signal
[H] :OFF
[L] : ON
(4) SD102 DRIVE (PFUDB →SD102)
SD102 drive control signal
[H] :OFF
[L] : ON
(5) PS103 (PFUDB →MAIN BODY)
Upper tray paper/no paper detection signal sent to
main body
(6) PS108 (PFUDB →MAIN BODY)
Lower tray paper/no paper detection signal sent to
main body
(7) DB SELECT (PFUDB →MAIN BODY)
DB Type identification signals sent to main body
DB DB-SELECT 1 DB-SELECT 0
DB-209/210 H L
Not connected H
Undefined L L
Signal
H
METHOD
REPLACEMENT
PA G E
2-3
DATE
Feb. 2001
REVISED EDITION
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2
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2-4
DB-209/210
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
[4] Tray up and down control
M101
M101 CONT
M102 CONT
PS101
PS102
PS106
PS107
24VDC
24VDC
PGND
PGND
5VDC
SGND PS101
MAIN BODY PFUDB
M101 DRIVE
24VDC
SGND
PS101
5VDC
PS102
SGND
PS102
5VDC
M102
PS106
M102 DRIVE
24VDC
SGND
PS106
5VDC
PS107
SGND
PS107
5VDC
1. Operation
When the paper feed tray of each level is set, PS101
(Tray detect PS (upper)) and PS106 (Tray detect PS
(lower)) detect the tray, M101 (Tray motor 1) and
M102 (Tray motor 2) turn on and lift the base plate in
the tray. When the tray is lifted, PS102 (Upper limit
detect PS (upper)) and PS 107 (Upper limit detect PS
(lower)) detect the paper upper limit and turn ON,
M101 and M102 turn off and the raising of the tray is
completed.
The down operation of the trays is performed
mechanically.
2. Signals
a. Input signals
(1) PS101 (PS101 →PFUDB)
Upper tray detect signal
By turning ON with [L] showing, M101 raises the
paper in the upper tray.
(2) PS106 (PS106 →PFUDB)
Lower tray detect signal
By turning on with [L] showing, M102 raises the paper
in the lower tray.
(3) PS102 (PS102 →PFUDB)
Upper tray paper upper limit detect signal
When the upper tray is raised and arrives at the upper
limit position, the signal becomes [H] and M101 is
turned off.
(4) PS107 (PS107 →PFUDB)
Lower tray paper upper limit detect sensor
When the lower tray is raised and arrives at the upper
limit position, the signal becomes [H] and M102 is
turned off.
(5) M101 CONT (MAIN BODY →PFUDB)
M101 ON/OFF control signal from main body
(6) M102 CONT (MAIN BODY →PFUDB)
M102 ON/OFF control signal from main body
b. Output signals
(1) M101 DRIVE (PFUDB →M101)
M101 drive control signal
[L] : M101 ON
[H] :M101 OFF
(2) M102 DRIVE (PFUDB →M102)
M102 drive control signal
[L] : M102 ON
[H] :M102 OFF
(3) PS101 (PFUDB →MAIN BODY)
Upper tray detect signal sent to main body
(4) PS102 (PFUDB →MAIN BODY)
Upper tray paper upper limit detect signal sent to
main body
(5) PS106 (PFUDB →MAIN BODY)
Lower tray detect signal sent to main body
(6) PS107 (PFUDB →MAIN BODY)
Lower tray paper upper limit detect signal sent to
main body
1
METHOD
REPLACEMENT
PAGE
2-4
DATE
May 2000
REVISED EDITION
1
1
1

2-5
DB-209/210
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
[5] Paper size detection control
SDB2
SW2
24VDC
24VDC
PGND
PGND
5VDC
SGND
SIZE D
SIZE C
SIZE B
SIZE A
MAIN BODY
U SIZE D
U SIZE C
U SIZE B
U SIZE A
U SIZE SELECT
PFUDB
SDB1
SW1
L SIZE D
L SIZE C
L SIZE B
L SIZE A
L SIZE SELECT
Tray paper size is detected in the main body by a signal
sent from SDB1(size detection board1) and SDB2 (size
detection board2) via the PFUDB (PFU drive board).
1. Operation
a. Tray paper size detection
Paper size for either tray is set by SW1 and SW2
above SDB1 and SDB2 and the PFUDB detects the
switch signal corresponding to the position of SW1
and SW2.
The relation between switch signal and paper size is
as follows.
For U.S.A.
11 x 17
A5R
A4
A4R
A3
F4
5.5 x 8.5
8.5 x 11
8.5 x 11R
8.5 x 14
Paper size
SIZE A SIZE B SIZE C SIZE D
Switch signal
(Label display
order)
For Europe
11 x 17
B5
B4
A5R
A4
A4R
A3
F4
11
11R
Paper size
SIZE A SIZE B SIZE C SIZE D
Switch signal
(Label display
order)
2. Signals
a. Input signals
(1) U SIZE A - D (SDB1 →PFUDB)
Upper tray paper size detect signal
(2) U SIZE A - D (SDB2 →PFUDB)
Lower tray paper size detect signal
b. Output signal
(1) SIZE A - D (PFUDB →MAIN BODY)
Paper size detection signal sent to main body
1
METHOD
REPLACEMENT
PA G E
2-5
DATE
May 2000
REVISED EDITION
1

2-6
DB-209/210
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
[6] Control of paper-level detection
SGND
5VDC
NAIN BODY
SGND
PS101
5VDC
SGND
PS106
5VDC
PFUDB
PS101
PS106
After the trays have been set in the machine, paper level is
detected by PS101 (tray detect sensor PS (upper)) and
PS106 (tray detect sensor PS (lower)).
As the paper level in tray runs low, the actuator at the rear
part of the tray gradually rotates as illustrated below. The
level is detected by the number of times the sensor goes
ON/OFF (the number of slits detected).
1. Operation
a. Detection of paper level in tray
The following shows the relation between the paper
level and the number of slit detections by the sensor
(PS101 or PS106).
0 slits : Full
1 slit : Medium
2 slits : Low
[7] Jam detection control
PS104
PS105
5VDC
SGND
PS104
MAIN BODY
SGND
PS104
5VDC
PS105
SGND
PS105
5VDC
PFUDB
1. Operation
Jam detection control is performed by the main body
when it has judged the changes in the PS104 (jam
detect PS1) and PS105 (jam detecting PS2)
detection signals. If the ON detection signal of each
sensor does not change after a specified time, it is
judged that there is a paper jam.
2. Signals
a. Input signals
(1) PS104 (PS104 →PFUDB)
Turns on when [H] is showing, and notifies the main
body of the presence or absence of paper in the
upper part of the DB.
(2) PS105 (PS105→PFUDB)
Goes ON when the level is [H], and notifies the main
body of the existence or otherwise of paper in the
lower part of the DB and also of whether the paper
feed door is open or closed.
b. Output signals
(1) PS104 (PFUDB→MAIN BODY)
PS104 detect signal sent to main body
(2) PS 105 (PFUDB→MAIN BODY)
PS105 detect signal sent to main body
Slit 1
Slit 2
Actuator
Tray detect
sensor
1
METHOD
REPLACEMENT
PA G E
2-6
DATE
May 2000
REVISED EDITION
1
View looking from rear Direction of rotation
when the paper
lifting plate rises.
1

1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
DISASSEMBLY/ASSEMBLY
3

1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
This section explains how to disassemble and reassemble the
machine.
Observe the following precautions when performing disassembly
and assembly work.
1. Be sure to unplug the power cord before working on the
machine.
2. Perform all reassembly work by reversing the order in which the
component was disassembled, unless otherwise specified.
3. Do not lose small parts (screws, etc.) or insert them in the
wrong place.
4. Install all parts completely before operating the machine.
5. Do not loosen the screws indicated as disallowed for removal.