Ricoh Aficio 401 User manual

Aficio 401
(Machine Code: A195)
Service Manual
– Insert Version –
The A195 machine is based on the A133 Copier.
Only the differences from the base copier are described in the
following pages. Therefore, this documentation should be treated
as an insert version of the base copier’s service manual, although
it has a separate binder. It should always be utilized together with
the base copier’s service manual.
TS Dept. IPP Business Division
RICOH Co., LTD.
April25th1997

IMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJURY
1. Before disassembling or assembling parts of the copier and peripherals,
make sure that the copier power cord is unplugged.
2. The wall outlet should be near the copier and easily accessible.
3. Note that some components of the copier and the paper tray unit are
supplied with electrical voltage even if the main switch is turned off.
4. If any adjustment or operation check has to be made with exterior covers
off or open while the main switch is turned on, keep hands away from
electrified or mechanically driven components.
5. If the start key is pressed before the copier completes the warm-up period
(Start key starts blinking red and green alternatively), keep hands away
from the mechanical and the electrical components as the copier starts
making copies as soon as the warm-up period is completed.
6. The inside and the metal parts of the fusing unit become extremely hot
while the copier is operating. Be careful to avoid touching those
components with your bare hands.
HEALTH SAFETY CONDITIONS
1. Never operate the copier without the ozone filters installed.
2. Always replace the ozone filters with the specified ones at the specified
intervals.
3. Toner and developer are non-toxic, but if you get either of them in your
eyes by accident, it may cause temporary eye discomfort. Try to remove
with eye drops or flush with water as first aid. If unsuccessful, get medical
attention.
OBSERVANCE OF ELECTRICAL SAFETY STANDARDS
1. The copier and its peripherals must be installed and maintained by a
customer service representative who has completed the training course
on those models.
+CAUTION
2. The RAM board on the system control board has a lithium battery
which can explode if replaced incorrectly. Replace the battery only
with an identical one. The manufacturer recommends replacing
the entire RAM board. Do not recharge or burn this battery. Used
batteries must be handled in accordance with local regulations.

SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL
1. Do not incinerate the toner bottle or the used toner. Toner dust may ignite
suddenly when exposed to open flame.
2. Dispose of used toner, developer, and organic photoconductor according
to local regulations. (These are non-toxic supplies.)
3. Dispose of replaced parts in accordance with local regulations.
4. When keeping used lithium batteries in order to dispose of them later, do
not put more than 100 batteries per sealed box. Storing larger numbers or
not sealing them apart may lead to chemical reactions and heat build-up.
LASER SAFETY
The Center for Devices and Radiological Health (CDRH) prohibits the repair
of laser-based optical units in the field. The optical housing unit can only be
repaired in a factory or at a location with the requisite equipment. The laser
subsystem is replaceable in the field by a qualified Customer Engineer. The
laser chassis is not repairable in the field. Customer engineers are therefore
directed to return all chassis and laser subsystems to the factory or service
depot when replacement of the optical subsystem is required.
+WARNING
Use of controls, or adjustment, or performance of procedures other than
those specified in this manual may result in hazardous radiation exposure.
+WARNING FOR LASER UNIT
WARNING: Turn off the main switch before attempting any of the
procedures in the Laser Unit section. Laser beams
can seriously damage your eyes.
CAUTION MARKING: For 115V version
For 230V version

1. SPECIFICATIONS
NOTE: Only items marked with ✽are different from the A133 copier.
Configuration: Desktop
Copy Process: Dry electrostatic transfer system
Originals: Sheet/Book
Original Size: Maximum A3/11" x 17"
Copy Paper Size: Maximum
A3/11" x 17" (Paper tray)
Minimum
A5/81/2" x 51/2" sideways (Paper tray)
A6/51/2" x 81/2" lengthwise (By-pass)
LCT A4/11" x 81/2" sideways only
Duplex Copying: Maximum
A3/11" x 17"
Minimum
A5/81/2" x 51/2" sideways
Copy Paper Weight: Paper tray:
60 ~ 105 g/m2, 16 ~ 24 lb
By-pass:
60 ~ 157 g/m2, 16 ~ 42 lb
LCT: 60 ~ 128 g/m2, 16 ~ 34 lb
Duplex copying:
64 ~ 105 g/m2, 17 ~ 24 lb
Reproduction Ratios: 5 Enlargement and 7 Reduction
A4/A3 Version LT/DLT Version
Enlargement
400%
200%
141%
122%
115%
400%
200%
155%
129%
121%
Full size 100% 100%
Reduction
93%
87%
82%
71%
65%
50%
25%
93%
85%
77%
74%
65%
50%
25%
A195
Copier
25 April 1997 SPECIFICATIONS
1

Zoom: 25% to 400% in 1% steps
Power Source: 120V/60Hz:
More than 12 A (for North America)
220V ~ 240V/50Hz:
More than 7 A (for Europe)
220V ~ 240V/60Hz:
More than 7 A (for Asia)
Power Consumption:
Copier Only Full System
Maximum Less than 1.44 kW Less than 1.44 kW
Copying Less than 1.20 kW Less than 1.20 kW
Warm-up Less than 0.88 kW Less than 0.90 kW
Stand-by Less than 0.20 kW Less than 0.22 kW
NOTE: 1) Full System: Copier + ADF + Paper Tray Unit + Finisher
Noise Emission:
Copier Only Full System
1. Sound Power Level
Copying 66.0 dB(A) 69.0 dB(A)
Stand-by 40.0 dB(A) 40.0 dB(A)
2. Sound Pressure Level at the Operator Position
Copying 54 dB(A) 59 dB(A)
Stand-by 25 dB(A) 25 dB(A)
NOTE: The above measurements are to be made in accordance with ISO
7779.
Full System: Copier + ADF + Paper Tray Unit + Finisher.
Dimensions (W x D x H): 880 x 655 x 602 mm (34.7" x 25.8" x 23.8")
Measurement Conditions
1) With by-pass feed table closed
2) With copy tray attached
3) With LCT cover closed
4) Without the 500-sheet copy tray
Weight: 95 kg (210 lb)
Copying Speed (copies/minute):
A4 sideways/
11" x 81/2"A3/11" x 17" B4/81/2" x 14"
40 18 26
SPECIFICATIONS 25 April 1997
2

Warm-Up Time Less than 140 seconds (20°C, 68°F)
First Copy Time: Less than 5.2 s (from LCT)
Copy Number Input: Ten-key pad, 1 to 999 (count up or count down)
Manual Image Density
Selection: 7 steps
Automatic Reset: 30 s is the standard setting; it can be changed
with a UP mode.
Copy Paper Capacity:
Paper Tray By-pass Feed LCT
About 500 sheets x1 About 40 sheets About 1000 sheets
Hard Disk: 1.7 GB, Fast SCSI-2
Duplex Tray Capacity A4/11" x 81/2": 50 sheets
A3/11" x 17": 50 sheets (80 g/m2, 20 lb paper)
30 sheets (81 ~ 105 g/m2,
21.5 ~ 27.9 lb paper)
Toner Replenishment: Cartridge exchange (700 g/cartridge)
Toner Yield: 20K copies (A4, 6% full black, ID Level 4)
✽Optional Equipment: •Platen cover
•Document feeder
•Paper tray unit with two paper trays
•Paper tray unit with three paper trays
•Finisher
•Key counter
•Tray heater
•Optical anti-condensation heater
•Drum heater
•500-sheet receiving tray
•3-bin Sorter
•Main Controller Board
•Network Interface Card
•Scanner Board
•PostScript ROM SIMM
•RAM SIMM
Copy Tray Capacity B4/81/2" x 14" ~ A4/81/2" x 11" 500 sheets
A3\11" x 17" 200 sheets
Less than B5/51/2" x 81/2": 200 sheets
A195
Copier
25 April 1997 SPECIFICATIONS
3

2. MACHINE CONFIGURATION
NOTE: Only items marked ✽are new items.
Item Machine Code No.
Copier A195 3
ADF (Option) A548 1
Paper Feed Unit (Option) A549 5
A550 4
Finisher (Option) A612 6
500-sheet Receiving Tray (Option) A615 7
Platen Cover (Option) A381 2
✽ 3-bin Sorter (Option) A566 8
✽ Main Controller Board (Option) A649 9
✽ Network Interface Card (Option) A732 (For Ethernet) 10
A733 (For Token Ring)
✽
Scanner Board (Option) A651 11
✽ PostScript ROM SIMM (Option) A650 12
✽ RAM SIMM (Option) — 13
12
3
11
109
13 12
45
6
7
8
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MACHINE CONFIGURATION 25 April 1997
4

3. ELECTRICAL COMPONENT DESCRIPTIONS
Refer to the electrical component layout and the point-to-point diagram on the
waterproof paper in the pocket for the locations of these components.
✽: New or modified components.
Symbol Index
No. Description Note
Printed Circuit Boards
PCB1 90 SCU Controls all copier functions both directly or
through other control boards.
PCB2 89 AC Drive Provides ac power to the exposure lamp and
fusing lamps.
PCB3 92 DC Power Supply Provides dc power.
PCB4 93 BCU Controls the mechanical parts of the printer.
PCB5 80 Charge High Voltage
Supply Supplies high voltage to the charge corona unit.
PCB6 85 High Voltage Control Controls the high voltage boards and the
quenching lamp.
PCB7 87 Operation Panel Controls the touch panel display and LED
matrix, and monitors the key matrix.
PCB8 95 Scanner Drive Drives the scanner motor.
PCB9 81 EX-IPU Processes the video signal from the SBU
and sends the video signal to the LD unit.
PCB10 84 SBU Contains the CCD, and outputs a video
signal to the EX-IPU board.
PCB11 94 Lamp Stabilizer Provides dc power for the exposure lamp.
PCB12 86 Main Scan Synchronization
Detector - 1
Detects the laser beam at the start of the
main scan.
PCB13 83 Main Scan Synchronization
Detector - 2
Detects the laser beam at the end of the
main scan.
PCB14 31 Transfer High
Voltage Supplies high voltage to the transfer belt.
PCB15 33 Development Bias
Power Pack Supplies high voltage to the development roller.
PCB16 40 Duplex Control Controls the operation of the duplex tray.
PCB17 N/A Liquid Crystal Display Controls the guidance display and displays
guidance for machine operation.
PCB18 51 LCT Interface Interfaces the LCT control signal between
the main board and the LCT.
PCB19 91 Relay Board Switches ac power to either the dc drive board (if the main switch is on) or to the
heaters (if the main switch is off).
PCB20 7 Laser Diode Drive Controls the laser diode.
✽PCB21 96 Extension Board Transfers control signals between the SCU
and the dummy board.
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Copier
25 April 1997 ELECTRICAL COMPONENT DESCRIPTIONS
5

Symbol Index
No. Description Note
✽PCB22 79 Dummy Board Installed to connect the SCU and EX-IPU
and other cables when the main contoller
board is not present.
Motors
M1 57 Main Drives the main body components.
M2 66 Toner Bottle Drive Rotates the toner bottle to supply toner to
the toner supply unit.
M3 73 Tray Lift Raises the bottom plate in the paper tray.
M4 56 Polygonal Mirror Turns the polygonal mirror.
M5 48 LCT Lift Lifts up and lowers the LCT bottom plate.
M6 74 Optics Exhaust Fan Removes heat from the optics unit.
M7 65 IPU Fan Removes heat from the IPU board.
M8 78 Exhaust Fan Removes heat from around the fusing unit.
M9 60 Ozone Fan Removes ozone-laden air from inside the
machine.
M10 55 Scanner Drive Drives the 1st and 2nd scanners (dc stepper
motor).
M11 36 Duplex Feed Drives the feed roller and moves the bottom
plate up and down.
M12 39 End Fence Jogger Drives the end fence jogger to square the
paper stack.
M13 38 Side Fence Jogger Drives the side fence jogger to square the
paper stack.
M14 75 DC Drive Board Fan Removes heat from around the DC drive
board.
M15 68 Charge Inlet Fan Provides air flow around the charge corona
unit section.
✽M16 59 Development Drive Drives the development unit.
Sensors
S1 13 By-pass Feed Paper
Width Informs the CPU what width paper is in the by-pass feed table.
S2 15 By-pass Feed Paper
End Informs the CPU that there is no paper in the by-pass tray.
S3 18 Tray Paper End Informs the CPU when the paper tray runs
out of paper.
S4 46
Upper Relay Detects the leading edge of paper from the
paper tray and duplex unit to determine the
stop timing of the paper feed clutch and
duplex feed motor. Also detects misfeeds.
S5 16 Tray Upper Limit Detects the height of the paper stack in the
paper tray to stop the upper tray lift motor.
S6 47 Lower Relay Detects misfeeds.
S7 49 LCT Lower Limit Sends a signal to the CPU to stop lowering
the LCT bottom plate.
S8 50 LCT Paper End Informs the CPU when the LCT runs out of
paper.
ELECTRICAL COMPONENT DESCRIPTIONS 25 April 1997
6

Symbol Index
No. Description Note
S9 12 LCT Upper Limit Signals the CPU to stop lifting the LCT
bottom plate.
S10 19 Registration Detects the leading edge of the copy paper to determine the stop timing of the paper
feed clutch, and detects misfeeds.
S11 29 Image Density
(ID) Detects the density of various patterns on the drum during process control.
S12 30 Toner Density
(TD) Detects the amount of toner inside the development unit.
S13 1 Scanner HP Informs the CPU when the 1st and 2nd
scanners are at the home position.
S14 8 Original Length-1 Detects the length of the original. This is one
of the APS (Auto Paper Select) sensors.
S15 9 Original Length-2 Detects the length of the original. This is one
of the APS (Auto Paper Select) sensors.
S16 24 Fusing Exit Detects misfeeds.
S17 6 Platen Cover Informs the CPU whether the platen cover is up or down (related to APS/ARE functions).
ARE: Auto Reduce and Enlarge
S18 32 Toner End Instructs the CPU to add toner to the toner
supply unit, and detects toner end conditions.
S19 28 Auto Response Returns the operation panel display and exits
from the energy saver mode.
S20 10 Transfer Belt
Position Informs the CPU of the current position of the transfer belt unit.
S21 2 Original Width Detects the width of the original. This is one
of the APS (Auto Paper Select) sensors.
S22 34 Duplex Paper End Detects paper in the duplex tray.
S23 35 Duplex Turn Detects the trailing edge of the copy paper to determine the jogging timing, and detects
misfeeds.
S24 42 Duplex Entrance Detects misfeeds.
S25 37 Side Fence Jogger
HP Detects the home position of the duplex side fence jogger.
S26 41 End Fence Jogger
HP Detects the home position of the duplex end fence jogger.
S27 23 Toner Overflow Detects when the used toner collection bottle
is full.
S28 14 By-pass Relay Detects misfeeds.
Switches
SW1 11 By-pass Feed Table Detects whether the by-pass feed table is
open or closed.
SW2 53 Tray Down Sends a signal to the CPU to lower the LCT
bottom plate.
SW3 20 Tray Paper Size Determines what size of paper is in the
paper tray.
SW4 54 LCT Cuts the dc power line and detects whether
the LCT is open or not.
A195
Copier
25 April 1997 ELECTRICAL COMPONENT DESCRIPTIONS
7

Symbol Index
No. Description Note
SW5 52 LCT Cover Cuts the dc power line of the LCT lift motor.
SW6 27 Main Supplies power to the copier.
SW7 26 Front Cover Safety Cuts the dc power line and detects whether the front cover is open or not.
Magnetic Clutches
CL1 61 Toner Supply Turns the toner supply roller to supply toner
to the development unit.
✽ CL2 Not used
CL3 76 Transfer Belt Lift Controls the touch and release movement of
the transfer belt unit.
CL4 58 Registration Drives the registration rollers.
CL5 63 By-pass Feed Starts paper feed from the by-pass feed
table or LCT.
CL6 71 Relay Drives the relay rollers.
CL7 72 Paper Feed Starts paper feed from the paper tray.
CL8 62 By-pass Relay Drives the by-pass relay rollers.
Solenoids
SOL1 67 By-pass Pick-up Drops the pick-up roller to the by-pass paper feed position. When paper is fed from the
LCT, this solenoid assists SOL3.
SOL2 77 Junction Gate Moves the junction gate to direct copies to
the duplex tray or to the paper exit.
SOL3 64 LCT Pick-up Drops the pick-up roller all the way down to the LCT paper feed position from the
by-pass paper feed position.
SOL4 69 Pick-up Controls the up/down movement of the
pick-up roller in the paper tray.
SOL5 70 Separation Controls the up/down movement of the separation roller at the paper tray feed
station.
Lamps
L1 3 Exposure Applies high intensity light to the original for
exposure.
L2 43 Fusing Provides heat to the hot roller.
L3 88 Quenching Neutralizes any charge remaining on the
drum surface after cleaning.
Heaters
H1 21 Drum (option) Turns on when the main switch is off to prevent moisture from forming around the
drum.
H2 5 Optics Anti-condensation
(option)
Turns on when the main switch is off to
prevent moisture from forming on the optics.
H3 22 Tray (option) Turns on when the main switch is off to keep paper dry in the paper tray.
ELECTRICAL COMPONENT DESCRIPTIONS 25 April 1997
8

Symbol Index
No. Description Note
Thermistors
TH1 45 Fusing Monitors the temperature at the central area
of the hot roller.
Thermofuses
TF1 44 Fusing Provides back-up overheat protection in the
fusing unit.
Thermoswitch
TS1 4 Exposure Lamp Opens the exposure lamp circuit if the 1st
scanner overheats.
Counters
CO1 25 Total Keeps track of the total number of copies
made.
CO2 N/A Key
(option) Used for control of authorized use. The copier will not operate until it is installed.
Others
CB1 17 Circuit Breaker (220 ~ 240V
machines only)
Provides back-up high current protection for
electrical components.
HDD 82 Hard Disk Drive Scanned image data is compressed and held here temporarily during copying; also
holds user stamp data.
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Copier
25 April 1997 ELECTRICAL COMPONENT DESCRIPTIONS
9

4. DRIVE LAYOUT
The development drive mechanism has been changed. (See Drive
Mechanism for more information.)
✽: New or modified components.
1. Toner Supply Clutch
2. Development Gear
3. Drum Drive Pulley
4. Main Motor
5. Scanner Drive Motor
6. Fusing Drive Gear
7. Exit Drive Gear
8. Toner Collection Bottle
Drive Gear
9. Transfer Belt Drive Gear
10. Cleaning Blade Drive Gear
11. Registration Clutch
12. Paper Feed Clutch
13. Relay Clutch
14. By-pass Feed Clutch
15. By-pass Relay Clutch
16. Development Drive Motor
✽
✽
6
1
13
14
15
12 11 10 9
8
7
5
4
32
16
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DRIVE LAYOUT 25 April 1997
10

5. DRIVE MECHANISM
5.1 Development Drive Mechanism
The development drive motor [B] rotates the development drive gear [A],
which drives the gears in the development unit.
The gears in the toner supply unit are driven by the toner supply roller drive
gear [C] when the toner supply clutch [D] activates.
All gears in the development unit are helical gears. These gears are quieter
than normal gears. The teeth of the development drive gear are chamfered
so they engage smoothly with the development roller gear [E] when the unit
is installed.
The main motor speed at 600 dpi is half that at 300/400 dpi. However, the
development motor speed is the same regardless of the resolution
(300/400/600 dpi). The main motor changes speed to produce the different
dpi resolutions, because this development unit mechanism is independent.
[E]
[A]
[B]
[D]
[C]
A195D550.wmf
A195
Copier
25 April 1997 DRIVE MECHANISM
11

6. ENERGY STAR
6.1 Auto OFF Mode
When the main controller board is not installed
When the Auto OFF timer expires (the default is 60 minutes), the machine
cuts all power to the copier. The Auto OFF timer can be programmed with UP
mode. The power is re-supplied when the main switch is turned back on. The
longer the machine has been off, the longer it will take to return to a ready
condition.
To automatically turn off the machine, a new type of main switch with an
incorporated coil is used. When the CPU drops CN299-9 from +24 to 0, the
main switch contacts are opened. The wiring diagram and connector layout
are shown below.
When the main controller board is installed
If the main controller board is installed, the Auto OFF mode is disabled by the
main controller board. This is because with the main board installed, the
machine can work as a network printer, and Auto Off Mode must be disabled
in a network printer.
5
4
2
3
1
6
CN11-3
-6
CN12-1
-2
CN11-1
-4
Main
Switch
CN16-2
CN16-1
-7
-8
Relay
Board
AC Drive
Board
BCU
CN299-8
-9
AC Drive
Board DC Power
Supply Unit
CN50-1
-2
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ENERGY STAR 25 April 1997
12

7. PRODUCT NAME AND DEVICE NAME
7.1 Overview
The product name is used as a response when the host machine inquires
using the PostScript for Macintosh.
The device name is used for the SCSI device name on the SCSI bus.
Also, the product name will be used for the demo page from this machine.
This information is stored in the SCU.
The product name or device name is forwarded to the host PC through the
main controller, depending on the type of data requested from the host PC.
7.2 PROGRAMMING MODE
The following table shows the programming mode for the production name
and device name.
Mode Method Entry Brand
Name Product Name Device Name
Vender ID Product ID
OEM Code
Setting SP 5818
0 Ricoh Ricoh Aficio 401 Ricoh Aficio 401
1 NRG NRG D440/2840/3240 NRG D440/2840/
3240
2 Not used
3 Savin Savin 9940DPC Savin 9940DPC
4 Not used
5 Infotec infotec 5402 MF infotec 5402MF
6 Lanier Lanier 5040 MFD Lanier 5040MFD
NOTE: This only needs to be registered if the NVRAM on the SCU is
defective.
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Copier
25 April 1997 PRODUCT NAME AND DEVICE NAME
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8. SERVICE PROGRAM MODE TABLES
NOTE: Items marked with ✽are new or modified items.
8.1 MAIN SP MODE TABLE
NOTE: 1. In the Function column, comments are in italics.
2. In the Settings column, the default value is in bold letters.
3. An asterisk " * " after the mode number means that this mode is
stored in the NVRAM. If you do a RAM reset, all these SP modes
will be reset to their factory settings.
Mode No. Function Settings
Class 1 Class 2
1001 *
Leading Edge
Registration Adjusts the printing leading edge registration using Trimming Area Pattern
(SP2902-3, No.10).
+9 ~ -9
0.1 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
The specification is 3
±
2 mm. See
"Replacement and Adjustment - Copy
Image Adjustments"in the AD3 service
manual for details.
1002 *
1 *
Side-to-Side
Registration
(Duplex)
Adjusts the printing side-to-side
registration from the duplex tray using the
Trimming Area Pattern (SP2902-3, No.10).
+9 ~ -9
0.1 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
The specification is 2
±
1.5 mm. See
"Replacement and Adjustment - Copy
Image Adjustments"in the AD3 service
manual for details on SP1002
2 *
Side-to-Side
Registration
(1st paper
feed)
Adjusts the printing side-to-side
registration from the 1st paper feed
station using the Trimming Area Pattern
(SP2902-3, No.10).
+9 ~ -9
0.1 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
The specification is 2
±
1.5 mm.
3 *
Side-to-Side
Registration
(2nd paper
feed: Option
PFU tray 1)
Adjusts the printing side-to-side
registration from the 2nd paper feed
station using the Trimming Area Pattern
(SP2902-3, No.10).
+9 ~ -9
0.1 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
The specification is 2
±
1.5 mm.
4 *
Side-to-Side
Registration
(3rd paper
feed: Option
PFU tray 2)
Adjusts the printing side-to-side
registration from the 3rd paper feed
station using the Trimming Area Pattern
(SP2902-3, No.10).
+9 ~ -9
0.1 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
The specification is 2
±
1.5 mm.
SERVICE PROGRAM MODE TABLES 25 April 1997
14

Mode No. Function Settings
Class 1 Class 2
1002*
5 *
Side-to-Side
Registration
(4th paper
feed: Option
PFU tray 3 if
present)
Adjusts the printing side-to-side
registration from the 4th paper feed
station using the Trimming Area Pattern
(SP2902-3, No.10).
+9 ~ -9
0.1 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
The specification is 2
±
1.5 mm.
6 *
Side-to-Side
Registration
(By-pass feed)
Adjusts the printing side-to-side
registration from the by-pass feed table
using the Trimming Area Pattern
(SP2902-3, No.10).
+9 ~ -9
0.1 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
The specification is 2
±
1.5 mm.
7 *
Side-to-Side
Registration
(LCT)
Adjusts the printing side-to-side
registration from the LCT using the
Trimming Area Pattern (SP2902-3, No.10).
+9 ~ -9
0.1 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
The specification is 2
±
1.5 mm.
1003 *
1 *
Paper Feed
Timing
(Paper Feed
Trays)
Adjusts the relay clutch timing at
registration. The relay clutch timing
determines the amount of paper buckle at
registration. (A +ve setting leads to more
buckling.)
+9 ~ -9
1 mm/step
+ 0 mm
2 *
Paper Feed
Timing
(By-pass,
LCT)
1006 *
Double copy
side-to-side
registration
Adjusts the image position from the center
line in double copy mode. +9 ~ -9 1 mm/step
+ 0 mm
Use the
•/∗
key to toggle between + and -.
See "Replacement and Adjustment -
Copy Image Adjustments" for details.
1007 * By-pass Feed Paper Size
Display
Displays the paper width sensor data for
the by-pass feed table.
1008 *
1 *
Duplex
Jogger Fence
Adjustment
(Side Fence)
Adjusts the stop position of the side
jogger fence span of the duplex unit.
+4 ~ -4
0.5 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
2 *
Duplex
Jogger Fence
Adjustment
(End Fence)
Adjusts the stop position of the end jogger
fence span of the duplex unit.
+4 ~ -4
0.5 mm/step
+ 0.0 mm
Use the
•/∗
key to toggle between + and -.
1103 *
Fusing Idling Selects whether fusing idling is done or
not. On
Off
Normally disabled in this machine.
However, if fusing is incomplete on the
1st and 2nd copies, switch it on. This may
occur if the room is cold.
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Copier
25 April 1997 SERVICE PROGRAM MODE TABLES
15

Mode No. Function Settings
Class 1 Class 2
1104 * Fusing Temperature
Control
Selects the fusing temperature control
mode. On/Off Phase
1105 * Fusing Temperature
Adjustment
Adjusts the fusing temperature. 170 ~ 200
1°C/step
185°C
1106 Fusing Temperature
Display
Displays the fusing temperature.
2001 *
1 *
Grid Voltage
Adjustment
(For copying)
Adjusts the voltage applied to the grid
plate during copying. 600 ~ 1000 1 V/step
890 V
Do not adjust.
2 *
Grid Voltage
Adjustment
(For ID sensor
pattern)
Adjusts the voltage applied to the grid
plate when making the ID sensor pattern. 600 ~ 1000 1 V/step
650 V
Do not adjust.
5 *
Charge
Corona
Current
Adjustment
Adjusts the current applied to the charge
corona wire. 900 ~ 1300
1 µA/step
1100 µµA
Do not adjust.
2101 *
1 *
Leading Edge
Erase Margin
(Printing)
Adjusts the leading edge erase margin. 0.0 ~ 9.0
0.1 mm/step
3.0 mm
The specification is 3
±
2 mm. See
"Replacement and Adjustment - Copy
Image Adjustments" for details on
SP2101.
2 * Trailing Edge Erase Margin
(Printing)
Adjusts the trailing edge erase margin. 0.0 ~ 9.0
0.1 mm/step
2.0 mm
The specification is 2
±
2 mm.
3 *
Left Side
Edge Erase
Margin
(Printing)
Adjusts the left side erase margin. 0.0 ~ 9.0
0.1 mm/step
2.0 mm
The specification is 2
±
1.5 mm.
4 *
Right Side
Edge Erase
Margin
(Printing)
Adjusts the right side erase margin. 0.0 ~ 9.0
0.1 mm/step
1.0 mm
The specification is 2
+2.5
−1.5
mm.
2103 * LD Power
Adjustment Adjusts the LD power. -127 ~ +127
2.1 µW/step
+0
Do not change the value.
SERVICE PROGRAM MODE TABLES 25 April 1997
16

Mode No. Function Settings
Class 1 Class 2
2201 *
1 *
Development
Bias
Adjustment
(for copying)
Adjusts the development bias during
copying. 200 ~ 700 1 V/step
550 V
This can be adjusted as a temporary
measure if faint copies appear due to an
aging drum.
2 *
Development
Bias
Adjustment
(for ID sensor
pattern)
Adjusts the development bias when
making the ID sensor pattern. 200 ~ 700 1 V/step
310 V
This can be adjusted as a temporary
measure if faint copies appear due to an
ageing drum.
2207
Forced Toner
Supply Forces the toner bottle to supply toner to the toner supply unit for 30 seconds.
Toner supply finishes automatically after
30 seconds. This process is not normally
needed in the field for this model. At
installation, doing the 50-page free run
also supplies toner to the development
unit.
2208 *
1 *
Toner Supply
Mode Selects the toner supply mode. Detect Fixed
Use fixed supply mode only as a
temporary measure if process control is
not working.
2 *
Toner Supply
Ratio
(Fixed Supply
Mode)
Selects the toner supply ratio for Fixed
Supply Mode. 6% 15%
30%
Use a higher value if the user tends to
make lots of copies that have a high
proportion of black.
2209 *
Toner Supply
Rate
(Detect
Supply Mode)
Adjusts the toner supply rate for Detect
Supply Mode. 50 ~ 200 1 mg/s / step
116 mg/s
Increasing this value reduces the toner
supply clutch on time. Use a lower value if
the user tends to make lots of copies that
have a high proportion of black.
2210 *
ID Detection
Interval Changes the interval for making the ID sensor pattern (VSP/VSG detection). 10 ~ 200
1 copy/step
200 copies
Reducing the interval will also reduce the
CPM.
Do not adjust this.
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Copier
25 April 1997 SERVICE PROGRAM MODE TABLES
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