Mita-Kyocera KM-1510, KM-1810 Service Manual

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SERVICE

MANUAL

Published in Dec.’00

842A1110

CAUTION

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

CAUTION

Double-pole/neutral fusing.

Safety precautions

This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities.

Safety warnings and precautions

Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below:

DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect

compliance with warning messages using this symbol.

WARNING:Serious bodily injury or death may result from insufficient attention to or incorrect compliance

with warning messages using this symbol.

CAUTION:Bodily injury or damage to property may result from insufficient attention to or incorrect

compliance with warning messages using this symbol.

Symbols

The triangle ( ) symbol indicates a warning including danger and caution. The specific point of attention is shown inside the symbol.

General warning.

Warning of risk of electric shock.

Warning of high temperature.

indicates a prohibited action. The specific prohibition is shown inside the symbol.

General prohibited action.

Disassembly prohibited.

indicates that action is required. The specific action required is shown inside the symbol.

General action required.

Remove the power plug from the wall outlet.

Always ground the copier.

1. Installation Precautions

WARNING

•Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check

that it is adequate for the rated current. ............................................................................................

•Connect the ground wire to a suitable grounding point. Not grounding the copier may cause fire or electric shock. Connecting the earth wire to an object not approved for the purpose may cause explosion or electric shock. Never connect the ground cable to any of the following: gas pipes, lightning rods, ground cables for telephone lines and water pipes or faucets not approved by the

proper authorities. .............................................................................................................................

CAUTION:

•Do not place the copier on an infirm or angled surface: the copier may tip over, causing injury. .....

•Do not install the copier in a humid or dusty place. This may cause fire or electric shock. ..............

•Do not install the copier near a radiator, heater, other heat source or near flammable material.

This may cause fire. ..........................................................................................................................

•Allow sufficient space around the copier to allow the ventilation grills to keep the machine as cool

as possible. Insufficient ventilation may cause heat buildup and poor copying performance. ..........

•Always handle the machine by the correct locations when moving it. ..............................................

•Always use anti-toppling and locking devices on copiers so equipped. Failure to do this may

cause the copier to move unexpectedly or topple, leading to injury..................................................

•Avoid inhaling toner or developer excessively. Protect the eyes. If toner or developer is accidentally ingested, drink a lot of water to dilute it in the stomach and obtain medical attention immediately. If it gets into the eyes, rinse immediately with copious amounts of water and obtain

medical attention. ..............................................................................................................................

•Advice customers that they must always follow the safety warnings and precautions in the copier’s

instruction handbook. ........................................................................................................................

2. Precautions for Maintenance

WARNING

•Always remove the power plug from the wall outlet before starting machine disassembly...............

•Always follow the procedures for maintenance described in the service manual and other related

brochures. .........................................................................................................................................

•Under no circumstances attempt to bypass or disable safety features including safety

mechanisms and protective circuits. .................................................................................................

•Always use parts having the correct specifications...........................................................................

•Always use the thermostat or thermal fuse specified in the service manual or other related brochure when replacing them. Using a piece of wire, for example, could lead to fire or other

serious accident. ...............................................................................................................................

•When the service manual or other serious brochure specifies a distance or gap for installation of a

part, always use the correct scale and measure carefully. ...............................................................

•Always check that the copier is correctly connected to an outlet with a ground connection. ............

•Check that the power cable covering is free of damage. Check that the power plug is dust-free. If

it is dirty, clean it to remove the risk of fire or electric shock. ............................................................

•Never attempt to disassemble the optical unit in machines using lasers. Leaking laser light may

damage eyesight...............................................................................................................................

•Handle the charger sections with care. They are charged to high potentials and may cause

electric shock if handled improperly. .................................................................................................

CAUTION

•Wear safe clothing. If wearing loose clothing or accessories such as ties, make sure they are

safely secured so they will not be caught in rotating sections...........................................................

•Use utmost caution when working on a powered machine. Keep away from chains and belts. .......

•Handle the fixing section with care to avoid burns as it can be extremely hot. .................................

•Check that the fixing unit thermistor, heat and press rollers are clean. Dirt on them can cause

abnormally high temperatures...........................................................................................................

•Do not remove the ozone filter, if any, from the copier except for routine replacement....................

•Do not pull on the AC power cord or connector wires on high-voltage components when removing

them; always hold the plug itself. ......................................................................................................

•Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a

cable cover or other appropriate item. ..............................................................................................

•Treat the ends of the wire carefully when installing a new charger wire to avoid electric leaks........

•Remove toner completely from electronic components. ...................................................................

•Run wire harnesses carefully so that wires will not be trapped or damaged. ...................................

•After maintenance, always check that all the parts, screws, connectors and wires that were

removed, have been refitted correctly. Special attention should be paid to any forgotten

connector, trapped wire and missing screws. ..................................................................................

•Check that all the caution labels that should be present on the machine according to the

instruction handbook are clean and not peeling. Replace with new ones if necessary. ...................

•Handle greases and solvents with care by following the instructions below: ....................................

· Use only a small amount of solvent at a time, being careful not to spill. Wipe spills off completely.

· Ventilate the room well while using grease or solvents.

· Allow applied solvents to evaporate completely before refitting the covers or turning the main switch on.

· Always wash hands afterwards.

•Never dispose of toner or toner bottles in fire. Toner may cause sparks when exposed directly to

fire in a furnace, etc...........................................................................................................................

•Should smoke be seen coming from the copier, remove the power plug from the wall outlet

immediately. ......................................................................................................................................

3. Miscellaneous

WARNING

•Never attempt to heat the drum or expose it to any organic solvents such as alcohol, other than

the specified refiner; it may generate toxic gas.................................................................................

CONTENTS

1-1 Specifications

1-1-1 Specifications ....................................................................................................................................... 1-1-1

1-1-2 Parts names ......................................................................................................................................... 1-1-3

(1) Copier ............................................................................................................................................. 1-1-3

(2) Operation panel .............................................................................................................................. 1-1-4

1-1-3 Machine cross section.......................................................................................................................... 1-1-5

1-1-4 Drive system ........................................................................................................................................ 1-1-6

(1) Drive system 1 (drive motor drive train).......................................................................................... 1-1-6

(2) Drive system 2 (scanner motor drive train)..................................................................................... 1-1-7

(3) Drive system 3 (original feed motor (18 cpm copier only) drive train) ............................................ 1-1-8

(4) Drive system 4 (ST feed motor (optional) drive train)..................................................................... 1-1-8

1-2 Handling Precautions

1-2-1 Drum .................................................................................................................................................... 1-2-1

1-2-2 Developer and toner............................................................................................................................. 1-2-1

1-2-3 Installation environment ....................................................................................................................... 1-2-2

1-3 Installation

1-3-1 Unpacking and installation ................................................................................................................... 1-3-1

(1) Installation procedure ..................................................................................................................... 1-3-1

1-3-2 Setting initial copy modes .................................................................................................................. 1-3-11

1-3-3 Copier management........................................................................................................................... 1-3-12

(1) Executing a copier management item .......................................................................................... 1-3-12

(2) Default settings............................................................................................................................. 1-3-13

1-3-4 Installing the optional drawer ............................................................................................................. 1-3-16

1-3-5 Installing the printer board/network board (option)............................................................................. 1-3-18

1-3-6 Installing the memory board (standard for 18 cpm/optional for 15 cpm) ............................................ 1-3-21

2A1/2

1-4 Maintenance Mode

1-4-1 Maintenance mode............................................................................................................................... 1-4-1

(1) Executing a maintenance item ....................................................................................................... 1-4-1

(2) Maintenance mode item list............................................................................................................ 1-4-2

(3) Contents of maintenance mode items ............................................................................................ 1-4-5

1-5 Troubleshooting

1-5-1 Paper misfeed detection ...................................................................................................................... 1-5-1

(1) Paper misfeed indication ................................................................................................................ 1-5-1

(2) Paper misfeed detection conditions................................................................................................ 1-5-2

(3) Paper misfeeds............................................................................................................................... 1-5-6

1-5-2 Self-diagnosis..................................................................................................................................... 1-5-10

(1) Self-diagnostic function ................................................................................................................ 1-5-10

(2) Self-diagnostic codes ................................................................................................................... 1-5-10

1-5-3 Image formation problems ................................................................................................................. 1-5-15

(1) No image appears (entirely white)................................................................................................ 1-5-16

(2) No image appears (entirely black)................................................................................................ 1-5-16

(3) Image is too light. ......................................................................................................................... 1-5-17

(4) Background is visible.................................................................................................................... 1-5-17

(5) A white line appears longitudinally. .............................................................................................. 1-5-17

(6) A black line appears longitudinally. .............................................................................................. 1-5-18

(7) A black line appears laterally........................................................................................................ 1-5-18

(8) One side of the copy image is darker than the other.................................................................... 1-5-18

(9) Black dots appear on the image. .................................................................................................. 1-5-19

(10) Image is blurred............................................................................................................................ 1-5-19

(11) The leading edge of the image is consistently misaligned with the original. ................................ 1-5-19

(12) The leading edge of the image is sporadically misaligned with the original. ................................ 1-5-20

1-1-1

2A1/2

(13) Paper creases. ............................................................................................................................. 1-5-20

(14) Offset occurs. ............................................................................................................................... 1-5-20

(15) Image is partly missing. ................................................................................................................ 1-5-21

(16) Fixing is poor. ............................................................................................................................... 1-5-21

(17) Image is out of focus. ................................................................................................................... 1-5-21

(18) Image center does not align with the original center. ................................................................... 1-5-22

(19) Image contrast is low (carrier scattering). ..................................................................................... 1-5-22

1-5-4 Electrical problems ............................................................................................................................. 1-5-23

(1) The machine does not operate when the main switch is turned on. ............................................. 1-5-23

(2) The drive motor does not operate. ............................................................................................... 1-5-23

(3) The scanner motor does not operate. .......................................................................................... 1-5-23

(4) The toner feed motor does not operate. ....................................................................................... 1-5-23

(5) Cooling fan motor does not operate. ............................................................................................ 1-5-23

(6) Original paper feed motor does not operate. ................................................................................ 1-5-24

(7) ST feed motor does not operate. .................................................................................................. 1-5-24

(8) The registration clutch does not operate. ..................................................................................... 1-5-24

(9) The paper feed clutch does not operate. ...................................................................................... 1-5-24

(10) The ST paper feed clutch does not operate. ................................................................................ 1-5-24

(11) The bypass paper feed clutch does not operate. ......................................................................... 1-5-24

(12) The cleaning lamp does not turn on. ............................................................................................ 1-5-24

(13) The exposure lamp does not turn on. ........................................................................................... 1-5-24

(14) The exposure lamp does not turn off. ........................................................................................... 1-5-24

(15) The fixing heater does not turn on (C610). ................................................................................... 1-5-24

(16) The fixing heater does not turn off. ............................................................................................... 1-5-25

(17) Main charging is not performed (C510). ....................................................................................... 1-5-25

(18) Transfer charging is not performed. ............................................................................................. 1-5-25

(19) No developing bias is output. ....................................................................................................... 1-5-25

(20) The copier scans the contact glass when originals are loaded on the DF. .................................. 1-5-25

(21) A paper jam in the paper feed, paper conveying or fixing section is indicated

when the main switch is turned on. .............................................................................................. 1-5-25

(22) The message requesting covers to be closed is displayed when the front cover,

paper conveying cover and optional drawer left cover are closed................................................ 1-5-26

(23) Others. .......................................................................................................................................... 1-5-26

1-5-5 Mechanical problems ......................................................................................................................... 1-5-27

(1) No primary paper feed. ................................................................................................................. 1-5-27

(2) No secondary paper feed. ............................................................................................................ 1-5-27

(3) Skewed paper feed. ...................................................................................................................... 1-5-27

(4) The scanner does not travel. ........................................................................................................ 1-5-27

(5) Multiple sheets of paper are fed at one time.................................................................................. 1-5-27

(6) Paper jams. .................................................................................................................................. 1-5-27

(7) Toner drops on the paper conveying path. ................................................................................... 1-5-27

(8) Abnormal noise is heard. .............................................................................................................. 1-5-27

1-6 Assembly and Disassembly

1-6-1 Precautions for assembly and disassembly ......................................................................................... 1-6-1

(1) Precautions ..................................................................................................................................... 1-6-1

(2) Running a maintenance item .......................................................................................................... 1-6-2

1-6-2 Paper feed section ............................................................................................................................... 1-6-3

(1) Detaching and refitting the paper feed pulleys ............................................................................... 1-6-3

(2) Detaching and refitting the ST paper feed pulleys and

ST paper conveying roller (option) ................................................................................................. 1-6-5

(2-1) Detaching and refitting the ST paper feed pulleys................................................................. 1-6-5

(2-2) Detaching and refitting the ST paper conveying roller........................................................... 1-6-8

(3) Detaching and refitting the bypass paper feed pulley ..................................................................... 1-6-9

(4) Adjustment after roller and clutch replacement ............................................................................ 1-6-12

(4-1) Adjusting the leading edge registration of image printing.................................................... 1-6-12

(4-2) Adjusting the leading edge registration for memory image printing..................................... 1-6-13

(4-3) Adjusting the center line of image printing........................................................................... 1-6-14

(4-4) Adjusting the margins for printing ........................................................................................ 1-6-15

(4-5) Adjusting the amount of slack in the paper.......................................................................... 1-6-16

1-1-2

2A1/2

1-6-3 Optical section.................................................................................................................................... 1-6-17

(1) Detaching and refitting the exposure lamp ................................................................................... 1-6-17

(2) Detaching and refitting the scanner wires .................................................................................... 1-6-19

(2-1) Detaching the scanner wires ............................................................................................... 1-6-19

(2-2) Fitting the scanner wires...................................................................................................... 1-6-20

(3) Detaching and refitting the laser scanner unit .............................................................................. 1-6-23

(4) Detaching and refitting the ISU (reference) .................................................................................. 1-6-25

(5) Adjusting the longitudinal squareness (reference) ....................................................................... 1-6-26

(6) Adjusting magnification of the scanner in the main scanning direction ........................................ 1-6-27

(7) Adjusting magnification of the scanner in the auxiliary scanning direction................................... 1-6-28

(8) Adjusting the scanner leading edge registration........................................................................... 1-6-29

(9) Adjusting the scanner center line ................................................................................................. 1-6-30

(10) Adjusting the margins for scanning an original on the contact glass............................................ 1-6-31

1-6-4 Image formation section ..................................................................................................................... 1-6-32

(1) Detaching and refitting the image formation unit .......................................................................... 1-6-32

(2) Detaching and refitting the main charger unit............................................................................... 1-6-33

(3) Detaching and refitting the drum .................................................................................................. 1-6-34

(4) Detaching and refitting the cleaning blade ................................................................................... 1-6-36

(5) Replace the developer.................................................................................................................. 1-6-37

1-6-5 Transfer section ................................................................................................................................. 1-6-38

(1) Detaching and refitting the transfer roller assembly ..................................................................... 1-6-38

1-6-6 Fixing section ..................................................................................................................................... 1-6-39

(1) Detaching and refitting the fixing unit ........................................................................................... 1-6-39

(2) Detaching and refitting the fixing unit thermistor .......................................................................... 1-6-39

(3) Detaching and refitting the fixing heater ....................................................................................... 1-6-40

(4) Detaching and refitting the heat roller separation claws............................................................... 1-6-42

(5) Detaching and refitting the heat roller........................................................................................... 1-6-43

(6) Detaching and refitting the press roller......................................................................................... 1-6-43

1-6-7 DF section .......................................................................................................................................... 1-6-45

(1) Detaching and refitting the DF forwardong pulley and

DF feed pulley (18 cpm copier only)............................................................................................. 1-6-45

(2) Detaching and refitting the DF separation pulley (18 cpm copier only) ........................................ 1-6-47

(3) Adjusting the DF lateral squareness............................................................................................. 1-6-48

(4) Adjusting the DF magnification..................................................................................................... 1-6-49

(5) Adjusting the DF leading edge registration................................................................................... 1-6-50

(6) Adjusting the DF trailing edge registration.................................................................................... 1-6-51

(7) Adjusting the DF center line ......................................................................................................... 1-6-52

(8) Adjusting the margins for scanning the original from the DF........................................................ 1-6-53

1-7 Requirements on PCB Replacement

1-7-1 Replacing the main PCB ...................................................................................................................... 1-7-1

1-7-2 Upgrading the firmware on the main PCB............................................................................................ 1-7-3

1-7-3 Adjustment-free variable resistors (VR) ............................................................................................... 1-7-4

2-1 Mechanical construction

2-1-1 Paper feed section ............................................................................................................................... 2-1-1

2-1-2 Main charging section .......................................................................................................................... 2-1-4

2-1-3 Optical section...................................................................................................................................... 2-1-6

(1) Original scanning............................................................................................................................ 2-1-7

(2) Image printing................................................................................................................................. 2-1-9

2-1-4 Developing section ............................................................................................................................. 2-1-11

(1) Formation of magnetic brush........................................................................................................ 2-1-12

(2) Toner density detection by the toner sensor ................................................................................ 2-1-13

(3) Toner density control .................................................................................................................... 2-1-13

(4) Correcting the toner sensor control voltage.................................................................................. 2-1-14

(5) Correcting toner output voltage .................................................................................................... 2-1-15

2-1-5 Transfer and separation section......................................................................................................... 2-1-16

2-1-6 Cleaning section................................................................................................................................. 2-1-18

2-1-7 Charge erasing section ...................................................................................................................... 2-1-19

1-1-3

2A1/2

2-1-8 Fixing section ..................................................................................................................................... 2-1-20

2-1-9 DF section .......................................................................................................................................... 2-1-22

(1) SDF (15 cpm copier) .................................................................................................................... 2-1-22

(2) ADF (18 cpm copier) .................................................................................................................... 2-1-23

2-2 Electrical Parts Layout

2-2-1 Electrical parts layout ........................................................................................................................... 2-2-1

(1) PCBs .............................................................................................................................................. 2-2-1

(2) Switches and sensors..................................................................................................................... 2-2-2

(3) Motors............................................................................................................................................. 2-2-3

(4) Other electrical components........................................................................................................... 2-2-4

2-3 Operation of the PCBs

2-3-1 Power source PCB ............................................................................................................................... 2-3-1

2-3-2 Main PCB ............................................................................................................................................. 2-3-4

2-3-3 Operation PCB ..................................................................................................................................... 2-3-9

2-3-4 CCD PCB ........................................................................................................................................... 2-3-11

2-3-5 Laser diode PCB ................................................................................................................................ 2-3-12

2-4 Appendixes

Timing chart No. 1 .......................................................................................................................................... 2-4-1

Timing chart No. 2 .......................................................................................................................................... 2-4-2

Timing chart No. 3 .......................................................................................................................................... 2-4-3

Timing chart No. 4 .......................................................................................................................................... 2-4-4

Timing chart No. 5 .......................................................................................................................................... 2-4-5

Chart of image adjustment procedures .......................................................................................................... 2-4-6

Wiring diagram ............................................................................................................................................... 2-4-9

1-1-4

1-1-1 Specifications

Type ............................................... Desktop

Copying system..............................Indirect electrostatic system

Originals .........................................DF (18 cpm copier): Sheets of paper (Maximum original size: folio/81/2" × 14")

DF (15 cpm copier): Sheets of paper (A4R, folio/8 Platen: Sheets of paper, books, 3-dimensional objects (Maximum original size: folio/ 81/2" × 14")

Original feed system ...................... Contact glass: fixed

DF: sheet-through

Copy paper ....................................Drawer: Plain paper (64 - 80 g/m

Bypass table: Plain paper (60 - 160 g/m

)

) Special paper: Transparencies, letterhead, colored paper and envelopes (when using the printer function only) Note: Use the bypass table for special paper.

Copying sizes................................. Maximum: folio/81/2" × 14"

Minimum: A6R /5

/2" × 81/2"R (When the bypass table is used)

Magnification ratios ........................ Manual mode: 50 - 200%, 1% increments

Copy speed ....................................At 100% magnification in copy mode (15 cpm copier):

/2" × 11"R: 15 copies/min.

A4R/8 At 100% magnification in copy mode (18 cpm copier): A4R/81/2" × 11"R: 18 copies/min.

First copy time................................ Within 6.3 s (A4R/8

/2" × 11"R, original placed on the platen)

Warm-up time.................................Within 30 s (room temperature 20°C/68°F, humidity 65% RH)

In preheat/energy saver mode: Within 30 s (room temperature 20°C/68°F,

humidity 65% RH) [priorty to power save]

In preheat/energy saver mode: Within 10 s (room temperature 20°C/68°F,

humidity 65% RH) [priorty to recovery]

Paper feed system ......................... Automatic feed

Capacity: Drawers: 250 sheets Manual feed Capacity:

Bypass: 50 sheets

Continuous copying .......................1 - 99 sheets

Photoconductor ..............................OPC (drum diameter 30 mm)

Charging system ............................ Single positive corona charging

Exposure light source.....................Semiconductor laser

Developing system......................... Dry, reverse developing (magnetic brush)

Developer: 2-component, ferrite carrier and N29T black toner

Toner density control: toner sensor

Toner replenishing: automatic from a toner container

Transfer system ............................. Transfer roller

Fixing system ................................. Heat roller

Heat source: halogen heaters (900 W for 120 V specifications/1030 W for

220 - 240 V specifications) Control temperature: 180°C/356°F (at normal ambient temperature) Abnormally high temperature protection device: 150°C/302°F thermostat Fixing pressure: 36.28 N

Charge erasing system .................. Exposure by cleaning lamp

Cleaning system.............................Cleaning blade

Scanning system............................ Flat bed scanning by CCD image sensor

Resolution ...................................... 600 × 600 dpi

Light source....................................Inert gas lamp

Dimensions .................................... 15 cpm copier:

497 (W) × 497 (D) × 376 (H) mm

/16" (W) × 199/16" (D) × 1413/16" (H)

19 18 cpm copier: 497 (W) × 497 (D) × 445 (H) mm

/16" (W) × 199/16" (D) × 171/2" (H)

Weight ............................................15 cpm copier: Approx. 25 kg/55 lbs

18 cpm copier: Approx. 27 kg/59.4 lbs

/2" × 11"R, 81/2" × 14")

2A1/2

1-1-1

2A1/2

Floor requirements .........................691 (W) × 497 (D) mm

/16" (W) × 199/16" (D)

Functions........................................Self-diagnostics, preheat, automatic copy density control, enlargement/reduction

copy and photo mode

Power source ................................. 120 V AC, 60 Hz, 9 A

220 - 240 V AC, 50/60 Hz, 4.8 A (average 2.5 A)

Power consumption .......................1080 W (120V)

1152 W (220 - 240V) (Measured value: 982 W (120V)/1131 W (220 - 240V)

Options........................................... Drawer, memory board (standard for 18 cpm copier), printer board, printer network

board

1-1-2

1-1-2 Parts names

(1) Copier

• 15 cpm Copier • 18 cpm Copier

2A1/2

9 8

12°

4 7 ¤

ﬁ

123

5 4

7 ¤

ﬁ

ﬂ ›‹

(

ﬂ

›‹ (

⁄

1 DF 2 Original table 3 Original insertion guides 4 DF open/close handle 5 Original eject cover 6 DF original switchback cover 7 Operation panel 8 Paper conveying cover handle 9 Paper conveying cover 0 Multi-Bypass ! Insert guides @ Support guide # T oner container $ Waste toner tank

$ # ‡

Figure 1-1-1

% Cleaning shaft ^ Front cover & Main switch * Copy storage section ( Drawer ) Platen ⁄ Original size scales ¤ Length guide ‹ Width guide › Width adjustment lever ﬁ Length guide storage section ﬂ Drawer bottom plate ‡ Hnadles for transport — Original holder (15 cpm copier only)

)

1-1-3

2A1/2

(2) Operation panel

Metric

Inch

9* ^() 0!

1236 587@% & #$⁄

49* ^() 0!

1-1-4

1 Start key (Indicator) 2 Stop/Reset key 3 Size Select keys 4 Data/On-line Indicator 5 Printer key 6 Number of Copies/Zoom (+) key 7 Number of Copies/Zoom (–) key 8 Zoom Input/Enter key 9 Copy quantity/magnification display 0 Add Toner indicator ! Memory Overflow/Data Error indicator

1236 587@% & #$⁄

Figure 1-1-2

@ Paper Select key # Drawer indicator $ Optional drawer indicator % Multi-bypass indicator ^ DF indicator & Misfeed indicator * Image mode selection key ( 2 in 1/4 in 1 key ) Sort key (indicator) ⁄ Copy exposure adjustment keys

1-1-3 Machine cross section

2A1/2

Figure 1-1-3 Machine cross section

Light path Original path Paper path

1 Paper feed section 2 Main charging section 3 Optical section 4 Developing section 5 Transfer and sparation section 6 Cleaning section 7 Charge erasing section 8 Fixing section 9 ADF (18 cpm copier) 0 SDF (15 cpm copier)

1-1-5

2A1/2

1-1-4 Drive system

(1) Drive system 1 (drive motor drive train)

1 Drive motor gear 2 Gear 67/30 3 Gear 23/16 4 Gear 37/21 5 Gear 23 6 Bypass paper feed clutch gear 7 Registration clutch gear 8 Gear 32/18 9 Paper feed clutch gear

As viewed from machine rear

Figure 1-1-4

0 Gear 97/25 ! Drum drive gear 53 @ Gear 40/45 # Gear 41 $ Gear 28/20 % Gear 26/20 ^ Fixing idle gear 44 & Gear 25 * Heat roller gear

1-1-6

(2) Drive system 2 (scanner motor drive train)

2A1/2

As viewed from machine rear

@, #, $ and % are parts of machine front

1 Scanner motor gear 2 Scanner drive gear 27/13 3 Scanner belt 4 Gear Z23 5 Idle gear 21 6 Gear Z30 7 Idle gear 21* 8 Drive change gear 13*

Figure 1-1-5

9 Drive change gear 25* 0 Gear 25/19* ! Conveying gear 20* @ Conveying pulley 22* # Conveying pulley 22* $ Drive pulley* % Conveying belt*

*: For the 15 cpm copier only.

1-1-7

2A1/2

(3) Drive system 3 (original feed motor (18 cpm copier only) drive train)

As viewed from machine rear

Figure 1-1-6

1 Original feed motor gear 2 Feed gear 42/20 3 Feed drive gear 20 4 Feed pulley 20 5 Idle gear 20 6 Feed drive gear 20 7 Lift gear 38

(4) Drive system 4 (ST feed motor (optional) drive train)

1-1-8

As viewed from machine rear

Figure 1-1-7

1 ST feed motor gear 2 Gear 25/59 3 Gear 19 4 Gear 19 5 ST paper feed clutch gear 20

2A1/2

1-2-1 Drum

Note the following when handling or storing the drum.

• When removing the image formation unit, never expose the drum surface to strong direct light.

• Keep the drum at an ambient temperature between 10°C/50°F and 32.5°C/90.5°F and at a relative humidity not higher than 85% RH. Avoid abrupt changes in temperature and humidity.

• Avoid exposure to any substance which is harmful to or may affect the quality of the drum.

• Do not touch the drum surface with any object. Should it be touched by hands or stained with oil, clean it.

1-2-2 Developer and toner

Store the developer and toner in a cool, dark place. Avoid direct light and high humidity.

1-2-1

2A1/2

1-2-3 Installation environment

1.Temperature: 10 - 32.5°C/50 - 90.5°F

2.Humidity: 20 - 85%RH

3.Power supply: 120 V AC, 9 A

4.Power source frequency: 50 Hz ±0.3%/60 Hz ±0.3%

5.Installation location

• Avoid direct sunlight or bright lighting. Ensure that the photoconductor will not be exposed to direct sunlight or other strong light when removing paper jams.

• Avoid extremes of temperature and humidity, abrupt ambient temperature changes, and hot or cold air directed onto the machine.

• Avoid dust and vibration.

• Choose a surface capable of supporting the weight of the machine.

• Place the machine on a level surface (maximum allowance inclination: 1° ).

• Avoid air-borne substances that may adversely affect the machine or degrade the photoconductor, such as mercury, acidic of alkaline vapors, inorganic gasses, NOx, SOx gases and chlorine-based organic solvents.

• Select a room with good ventilation.

6.Allow sufficient access for proper operation and maintenance of the machine. Machine front: 1000 mm/39 Machine right: 300 mm/11

• 15 cpm copier

220 - 240 V AC, 4.8 A (average 2.5 A)

/8" Machine rear: 300 mm/1113/16"

/16" Machine left: 500 mm/1911/16"

• 18 cpm copier

Figure 1-2-1a Installation dimensions

a: 376 mm/1413/16" b: 462 mm/183/16" c: 497 mm/19 d: 722 mm/28 e: 497 mm/199/16"

f: 847 mm/33

g: 845 mm/33

a:445 mm/17 b:526 mm/20

c: 497 mm/199/16" d:605 mm/23 e:497 mm/19

f: 847 mm/335/16"

g:871 mm/34

9 7

5 1

/16" /16"

/16" /4"

1 11

13 9

/2"

/16" /16"

1-2-2

Figure 1-2-1b Installation dimensions

1-3-1 Unpacking and installation

(1) Installation procedure

Remove the tapes, pads and sheet inside the drawer.

2A1/2

Start

Unpack.

Remove the tapes.

Adjust the fixing pressure.

Remove the pins holding light source units 1 and 2.

Remove the pad inside the machine.

Install a toner container.

Install a waste toner tank.

Attach the original holder (15 cpm copier).

Connect the power cord.

Load paper.

Make test copies.

Completion of the machine installation.

Caution:

Be sure to install a waste toner tank when setting the machine.

1-3-1

2A1/2

Unpack.

• 15 cpm copier

&*(

⁄

)

1-3-2

1 Copier 2 Power cord 3 Upper pads 4 Stay 5 Outer case 6 Bottom pads 7 Tray spacer 8 Machine cover 9 Scanner pin tag 0 Fixing lever tags ! Waste toner tank spacer

Figure 1-3-1 Unpacking

@ Original holder # Bar code labels $ Drawer spacer % Front drawer spacer ^ Sheet & Instruction handbook * Installation manual ( Business reply mail (120 V specs only) ) Plastic bag

• 18 cpm copier

2A1/2

&*(

)

1 Copier 2 Power cord 3 Upper pads 4 Stay 5 Outer case 6 Bottom pads 7 Tray spacer 8 Machine cover 9 Scanner pin tag 0 Fixing lever tags

Figure 1-3-2 Unpacking

!Plastic bag @Pad #Bar code labels $Drawer spacer %Front drawer spacer ^Sheet &Instruction handbook *Installation manual (Business reply mail (120 V specs only)

1-3-3

2A1/2

Remove the tapes.

1. Remove the tapes. 15 cpm: 12 pieces/18 cpm: 8 pieces

• 18 cpm copier

• 15 cpm copier

2. Open the bypass tray and paper conveying cover and then remove the two tapes.

1-3-4

Figure 1-3-3

Tapes

Figure 1-3-4

Adjust the fixing pressure.

3. Lift the fixing section release levers and close the paper conveying cover.

Remove the tapes, pads and sheet inside the drawer.

4. Pull the drawer out and remove the tapes and two pads.

Caution: Be sure to load paper after the main

switch is turned on and copying is enabled. Loading paper before turning the main switch on may cause paper jams.

2A1/2

Fixing section release levers

Figure 1-3-5

Tapes

5. Open the DF cover and remove the sheet on the contact glass.

Pads

Figure 1-3-6

Sheet

Figure 1-3-7

1-3-5

2A1/2

Remove the pins holding light source units 1 and 2.

6. Remove the tapes and two pins for light source unit 1 and 2.

7.Open the front cover and store the removed pins by securing them on the inside of the cover. The storing locations of the pins are marked inside the front cover.

Caution: Be sure to refit the pins whenever the

copier is moved.

Pins

Tapes

Figure 1-3-8

Figure 1-3-9

Remove the pad inside the machine.

8. Remove the pad.

1-3-6

Pad

Figure 1-3-10

9. Pull out the tape from the developing section gently.

Install a toner container.

10.Hold the toner container vertically and tap the top 15 times. Turn the container upside-down and tap the top 15 times. Then, hold the container horizontally and shake it from side to side 10 times.

2A1/2

Tape

Figure 1-3-11

11.Insert the toner container into the copier as far as it will go and then slide it to the right as indicated by the marked arrows.

Figure 1-3-12

Toner container

Figure 1-3-13

1-3-7

2A1/2

Install a waste toner tank.

12.Install the waste toner tank and close all the covers and drawers.

Attach the original holder (15 cpm copier only).

13.Install the original holder to the left side of the copier.

Waste toner tank

Figure 1-3-14

Connect the power cord.

14.Connect the power cord and turn the main switch on.

Caution: Never turn the power off or open covers

while the copier is driving. Doing so may cause printing problems or contaminate the copier internally.

Original holder

Figure 1-3-15

Power cord

Figure 1-3-16

1-3-8

Load paper.

15.Pull the drawer out as far as it will go. When the optional drawer is installed, do not pull more than one drawer out at a time.

16.Press the drawer bottom plate down and lock it there.

17.Holding the width adjustment lever, move it to align the width guide with the required paper width.

2A1/2

Drawer bottom plate

Figure 1-3-17

18.While squeezing the presses on the sides, remove the length guide and then insert it into the holes of the required paper length. Store the length guide in the space shown in the diagram when the paper touches the right-hand wall of the drawer.

Width adjustment

lever

Width guide

Figure 1-3-18

Length guide

Figure 1-3-19

1-3-9

2A1/2

19.Set the paper flush against the left-hand wall of the drawer. * Load paper so that it is kept under the claw of

the drawer.

* When loading paper into the drawer, make sure

that the copy side is facing upward (the copy side is the side facing upward when the package is opened.)

* Check that the length and width guides securely

contact the paper. If there is a gap, adjust the position of the length or width guide to close it.

* Load paper all at once and do not add paper

until all sheets are used up. Adding paper to a drawer that still contains paper may cause paper jams.

20.Push the drawer back in gently. * Check that the paper is kept under the claw of

the drawer. If not, reload the paper.

Make test copies.

21.Set the original and make test copies.

Claw

Figure 1-3-20

Completion of machine installation.

1-3-10

1-3-2 Setting initial copy modes

Factory settings are as follows:

2A1/2

Maintenance

item No.

U254 U255 U256

U258 U260

U342 U348

Contents

Turning auto start function on/off Setting auto clear time Turning auto preheat/energy saver function on/off Switching copy operation at toner empty detectionempty detection Changing the copy count timing Setting the ejection restriction Setting the copy density adjustment range

Factory setting

On 90 s On

Single mode, 70 After ejection

On Normal

1-3-11

2A1/2

1-3-3 Copier management

In addition to a maintenance function for service, the copier is equipped with a management function which can be operated by users (mainly by the copier administrator). In this copier management mode, default settings can be changed.

(1) Executing a copier management item

• Executing a default setting item Start

Press both of the copy exposure

adjustment keys for 3 s.

Select an setting item

using the zoom +/- keys.

Press the enter key.

Execute the default setting item

(see page 1-3-13)

Stop/reset key: on

or select "F00" and enter key: on

End

1-3-12

(2) Default settings

2A1/2

User status report

Outputs the details of the default settings.

1. Select “F01” and press the enter key. User status report is printed out.

Exposure mode

Selects the image mode at power-on.

1. Select “F02” and press the enter key.

2. Select the exposure mode and press the enter key. Exposure mode: 1 (auto exposure)/ 2 (text and photo)/3 (photo)/4 (text)

Exposure steps

Sets the number of exposure steps for the manual exposure mode.

1. Select “F03” and press the enter key.

2. Select “3 steps” or “5 steps” and press the enter key. Setting range: 1 (3 steps)/2 (5 steps)

Auto exposure adjustment

Adjusts the exposure for the auto exposure mode.

1. Select “F04” and press the enter key.

2. Select the setting and press the enter key. Setting range: 1 to 5

Text and photo original exposure adjustment

Adjusts the exposure to be used when text and photo original is selected for the image mode.

1. Select “F05” and press the enter key.

2. Select the setting and press the enter key. Setting range: 1 to 5

Default drawer

Sets the drawer to be selected in case such as after the stop/reset key is pressed.

1. Select “F08” and press the enter key.

2. Select default drawer and enter key: on Default drawer: 1 (drawer)/2 (optional drawer) Note: This setting item will not be displayed if the optional drawer is not installed.

Automatic drawer switching

Sets if the automatic drawer switching function is available.

1. Select “F09” and press the enter key.

2. Select “on” or “off” and press the enter key. Setting range: 1 (on)/2 (off) Note: This setting item will not be displayed if the optional drawer is not installed.

Drawer paper size

Sets the size of paper loaded in the drawer.

1. Select “F10” and press the enter key.

2. Select the size of paper and press the enter key. Paper size: 1 (A4R/8

/2" × 14")/2 (A5R/81/2" ×

11"R)/3 (Folio/51/2" × 81/2"R)

Optional drawer paper size

Sets the size of paper loaded in the optional drawer.

1. Select “F11” and press the enter key.

2. Select the size of paper and press the enter key. Paper size: 1 (A4R/8

/2" × 14")/2 (A5R/81/2" × 11"R)/3 (Folio/51/2" × 81/2"R) Note: This setting item will not be displayed if the optional drawer is not installed.

Non-standard size paper for the bypass tray

Photo original exposure adjustment

Adjusts the exposure to be used when photo original is selected for the image mode.

1. Select “F06” and press the enter key.

2. Select the setting and press the enter key. Setting range: 1 to 5

Text original exposure adjustment

Adjusts the exposure to be used when text original is selected for the image mode.

1. Select “F07” and press the enter key.

2. Select the setting and press the enter key. Setting range: 1 to 5

Sets if non-standard size paper is available when the paper is fed from the bypass tray.

1. Select “F11” and press the enter key.

2. Select “on” or “off” and press the enter key. Setting range: 1 (on)/2 (off)

Non-standard size paper width setting for bypass tray Sets the paper width when non-standard size is fed

from the bypass tray.

1. Select “F13” and press the enter key.

2. Enter the setting and press the enter key. Setting range is 4.13" to 8.50" (105 to 216 mm). Note: This setting item will not be displayed if “off” is selected in “Non-standard size paper for the bypass tray”.

1-3-13

2A1/2

Copy limit

Sets the limit of the number of copies that can be made at a time.

1. Select “F14” and press the enter key.

2. Enter the setting and press the enter key. Setting range is 1 to 99 copies.

DF auto start

Sets whether copies to be made automatically or not when an original is placed in the DF.

1. Select “F15” and press the enter key.

2. Select “on” or “off” and press the enter key. Setting range: 1 (on)/2 (off) This setting item is not displayed on the 18 cpm copier.

Layout (4 in 1)

Sets whether to place the originals vertically or horizontally for 4 in 1 layout copying.

1. Select “F16” and press the enter key.

2. Select “vertical” or “horizontal” and press the enter key. Setting range: 1 (vertical)/2 (horizontal) Note: This setting item will not be displayed on the 15 cpm copier if the optional memory board is not installed.

Layout (borderline)

Selects the type of borderline for layout copying.

1. Select “F17” and press the enter key.

2. Select the setting and press the enter key. Setting range: 1 (none)/2 (solid line)/ 3 (dotted line) Note: This setting item will not be displayed on the 15 cpm copier if the optional memory board is not installed.

Auto preheat time

Sets the auto preheat time.

1. Select “F20” and press the enter key.

2. Select the setting and press the enter key. Setting is available between 5 and 45 min. in 5 min. steps. Setting range: 1 (5 min.)/2 (10 min.)/3 (15 min.)/ 4 (20 min.)/5 (25 min.)/6 (30 min.)/7 (35 min.)/ 8 (40 min.)/9 (45 min.) Sets the auto preheat time to be shorter than the auto shutoff time.

Auto shutoff time

Sets the auto shut-off time.

1. Select “F21” and press the enter key.

2. Select the setting and press the enter key. Setting is available between 15 and 120 min. in 15 min. steps. Setting range: 1 (15 min.)/2 (30 min.)/3 (45 min.)/ 4 (60 min.)/5 (75 min.)/6 (90 min.)/7 (105 min.)/ 8 (120 min.)

Preheat recovery time

Selects the mode of the auto preheat function from recovery priority mode and power save priority mode.

1. Select “F22” and press the enter key.

2. Select the priority mode and enter key: on Priority mode: 1 (recovery priority mode)/ 2 (power save priority mode)

Viewing total counter value

Displays the total number of copies.

1. Select “F23” and press the enter key. The total number of copies are displayed on the copy quantity/magnification display.

Silent mode

Sets the length of time from when copying ends to when entering the silent mode.

1. Select “F18” and press the enter key.

2. Select the setting and press the enter key. Setting range: 1 (0 s)/2 (5 s)/3 (10 s)/4 (15 s)/ 5 (30 s)

Auto shut-off

Sets if the auto shut-off function is available.

1. Select “F19” and press the enter key.

2. Select “on” or “off” and press the enter key. Setting range: 1 (on)/2 (off)

1-3-14

Toner counter report

Outputs the report on the toner consumption ratio.

1. Select “F24” and press the enter key. The list is printed out.

Toner replacement message output setting

Sets if a message requesting the user to replace the toner container is printed when the toner is used up.

1. Select “F25” and press the enter key.

2. Select “on” or “off” and press the enter key. Setting range: 1 (on)/2 (off)

Paper feed shifting adjustment (drawer)

Adjusts displacement of the copy image.

1. Select “F26” and press the enter key.

2. Select the setting and press the enter key. Setting range: -3.0 to +3.0 (1 steps moves 0.1)

Paper feed shifting adjustment (optional drawer)

Adjusts displacement of the copy image.

1. Select “F27” and press the enter key.

2. Select the setting and press the enter key. Setting range: -3.0 to +3.0 (1 steps moves 0.1) This setting item will not displayed if the optional drawer is not installed.

Paper feed shifting adjustment (bypass tray)

Adjusts displacement of the copy image.

1. Select “F28” and press the enter key.

2. Select the setting and press the enter key. Setting range: -3.0 to +3.0 (1 steps moves 0.1) Use A4R/81/2" × 11"R size paper.

2A1/2

Inch/metric specifications setting

Switches the copier specifications setting between inch and metric.

1. Select “F29” and press the enter key.

2. Select the specifications setting and press the enter key. Specifications setting: 1 (inch)/2 (metric)/ 3 (metric for Japan)

Folio length setting (drawer)

Sets the length when folio is selected as the paper size.

1. Select “F30” and press the enter key.

2. Select the length and press the enter key. Length: 1 (210 mm)/2 (216 mm) This setting item is available only when metric is selected for the copier specifications.

Folio length setting (bypass tray)

Sets the length when folio is selected as the paper size.

1. Select “F31” and press the enter key.

2. Enter the setting and press the enter key. Setting is available between 200 and 216 mm. This setting item is available only when metric is selected for the copier specifications.

1-3-15

2A1/2

1-3-4 Installing the optional drawer

Procedure

1. Remove the tapes, pad and plastic bag from the optional drawer.

Tapes

Pad

2. Place the copier on top of the optional drawer such that the right and left covers of the copier become flush with the drawer cover.

Caution: Two people are required to move the

copier. Stand on the front and rear sides of the copier and hold it tightly by the handles on the sides. Carrying the copier standing on its right and left sides or holding it by the drawer may damage the copier or cause injury.

Tape

Figure 1-3-21

Tapes

Optional drawer

3. Insert the power plug of the copier to the wall outlet and turn the main switch on.

1-3-16

Figure 1-3-22

Power plug

Figure 1-3-23

4. If installing on a copier set for metric specifications, pull the optional drawer out as far as it will go and fit the rear paper stops for the metric specifications to the optional drawer. Note: If the rear paper stops for the metric

specifications are not installed, problems such as a paper misfeed may occur. (The rear paper stops for the metric specifications are not necessary when using inch-sized paper [81/2" × 14", 81/2" × 11"R or 51/2" × 81/2"R]).

2A1/2

Rear paper stop for

the metric specifications

Rear paper stop for

the metric specifications

5. Load paper into the cassette. Note: For the details on how to load paper, see

“1. How to load paper” on page 3-1 in the instruction handbook of the copier.

6. Affix the drawer size label to the drawer cover according to the size of paper to be used.

Important:

Be sure to turn the main switch on before loading paper into the optional drawer. Loading paper first may cause a paper misfeed when the main switch is turned on.

Figure 1-3-24

Drawer size label

Figure 1-3-25

1-3-17

2A1/2

1-3-5 Installing the printer board/network board (option)

Procedure

1. Remove the tape keeping the cover of the printer board from rotating.

2. Remove the printer cover from the copier by firmly pressing the part marked with a triangle.

Printer board

Tape

Figure 1-3-26

3. Remove the two pins securing the shield cover and then remove the cover.

Printer cover

Figure 1-3-27

Sheild cover

1-3-18

Pins

Figure 1-3-28

4. Insert the printer board as far as it will go.

5. Secure the printer board to the copier using the two pins removed in step 3.

2A1/2

6. Remove the knock-out portion of the printer cover by firmly pressing with a tool, such as a screwdriver, and refit the printer cover to the copier. Note: The printer cover may not be able to be

refit depending on the type of printer cable. In this case, use the copier without fitting the printer cover.

Pins

Printer cover

Printer board

Figure 1-3-29

Knock-out

portion

Figure 1-3-30

1-3-19

2A1/2

Installing the optional network board

1. Remove the two pins securing the option plate on the printer board and then remove the plate.

2. Insert the network board along the rails as far as it will go.

3. Secure the network board using the two pins.

Pins

Option plate

Figure 1-3-31

Network board

Figure 1-3-32

4. Remove the knock-out portion of the printer cover by firmly pressing with a tool, such as a screwdriver, and refit the printer cover to the copier.

1-3-20

Printer cover

Knock-out

portion

Figure 1-3-33

1-3-6 Installing the memory board (standard for 18 cpm/optional for 15 cpm)

Note: Make sure that the DIMM is securely inserted

on the memory board before starting installation.

Procedure

1. Remove the printer cover from the copier by firmly pressing the part marked with a triangle.

Printer cover

2A1/2

2. Remove the two pins securing the cover on the copier and then remove the cover.

Figure 1-3-34

Cover

Pins

Figure 1-3-35

1-3-21

2A1/2

3. Insert the memory board as far as it will go.

4. Secure the memory board using the two pins removed in step 2.

5. Refit the printer cover to the copier.

Memory board

Pins

Figure 1-3-36

Printer cover

Figure 1-3-37

1-3-22

1-4-1 Maintenance mode

The copier is equipped with a maintenance function which can be used to maintain and service the machine.

(1) Executing a maintenance item

Start

Press the stop/reset key, start key and the left copy exposure adjustment key in the order presented and hold them down.

2A1/2

Press the stop/reset key.

Enter the number of the maintenance item to be executed using the copy exposure adjustment keys or the zoom +/- keys.

Press the start key.

The maintenance item is run.

Press the stop/reset key.

Yes

Run the item again?

· · · · · · · Entering the maintenance mode

· · · · · · · Selecting a maintenance item

Yes

Caution:

Do not perform aging without the waste toner tank installed during maintenance service.

Run another maintenance

mode?

Enter 001 using the copy exposure adjustment keys or the zoom +/- keys, and press the start key.

End

· · · · · · · Exiting the maintenance mode

1-4-1

2A1/2

(2) Maintenance mode item list

Section

General

Initialization

Drive, paper feed, paper conveying and cooling system

Optical

Item

No. setting*

U000 Outputting an own-status report — U001 Exiting the maintenance mode — U004 Setting the machine number — U005 Copying without paper — U020 Initializing all data — U021 Initializing memories — U022 Initializing backup data — U030 Checking motor operation — U031 Checking switches for paper conveying — U032 Checking clutch operation — U033 Checking solenoid operation — U034 Adjusting the print start timing

• Adjusting the leading edge registration 0

• Adjusting the center line 0

U035 Setting folio size

• Length 330

• Width 210 U042 Setting the LSU type b U051 Adjusting the amount of slack in the paper

• Drawer 0

• Bypass tray 0

• Optional drawer 0 U053 Performing fine adjustment of the motor speed

• Drive motor 0

• Polygon motor 0

• ST feed motor 0 U060 Adjusting the scanner input properties 12 U061 Turning the exposure lamp on — U063 Adjusting the shading position 0 U065 Adjusting the scanner magnification

• Main scanning direction/auxiliary scanning direction 0 U066 Adjusting the leading edge registration for scanning an original on the 0

contact glass U067 Adjusting the center line for scanning an original on the contact glass 0 U068 Adjusting the scanning position for originals from the DF 2 U070 Adjusting the DF magnification 0 U071 Adjusting the DF scanning timing

• Adjusting leading edge registration 0

• Adjusting trailing edge registration 0 U072 Adjusting the DF center line 0 U073 Checking scanner operation — U074 Adjusting the DF input light luminosity 0 U087 Turning the DF scanning position adjust mode on/off

• Setting the mode on/off On

• Setting the reference data for identifying dust 35 U088 Setting the input filter (moiré reduction mode) Off U089 Outputting a MIP-PG pattern — U091 Checking shading — U092 Adjusting the scanner automatically — U093 Setting the exposure density gradient

• Text/text and photo/photo mode 0

Maintenance item contents

Initial

* Initial setting for executing maintenance item U020

1-4-2

2A1/2

Section

High voltage

Developing

Fixing and cleaning

Operation panel and support equipment

Mode setting

Image processing

Item

No. setting*

U100 Setting the surface potential 197 U101 Setting high voltages

• Developing bias 200/34

• Transfer voltage 94

• Transfer voltage output timing 256/544 U109 Setting the drum type b U110 Checking/clearing the drum count — U111 Checking/clearing the drum drive time — U130 Initial setting for the developer — U131 Setting the toner sensor control voltage 157 U132 Replenishing toner forcibly — U135 Checking toner feed motor operation — U155 Displaying the toner sensor output — U156 Changing the toner control level

• Toner feed start level 113

• Toner empty level 44 U157 Checking/clearing the developing drive time — U158 Checking/clearing the developing count — U161 Setting the fixing control temperature

• Primary stabilization fixing temperature 125

• Secondary stabilization fixing temperature 180 U162 Stabilizing fixing forcibly — U163 Resetting the fixing problem data — U196 Turning the fixing heater on — U199 Checking the fixing temperature — U200 Turning all LEDs on — U203 Operating DF separately — U207 Checking the operation panel keys — U208 Setting the paper size 81/2" × 11" U243 Checking the operation of the DF motors — U244 Checking the DF switches — U250 Setting the maintenance cycle 45 U251 Checking/clearing the maintenance count — U252 Setting the destination Inch U254 Turning auto start function on/off On U255 Setting auto clear time 90 U256 Turning auto preheat/energy saver function on/off On U258 Switching copy operation at toner empty detection Single mode,

U260 Changing the copy count timing After ejection U265 Setting the destination specifications 0 U332 Setting the size conversion factor — U342 Setting the ejection restriction On U345 Setting the value for maintenance due indication 0 U348 Setting the copy density adjustment range Normal U402 Adjusting margins for printing — U403 Adjusting margins for scanning an original on the contact glass — U404 Adjusting margins for scanning an original from the DF — U407 Adjusting the leading edge registration for memory image printing —

Maintenance item contents

Initial

* Initial setting for executing maintenance item U020

1-4-3

2A1/2

Section

Others

Item

No. setting*

U901 Checking/clearing copy counts by paper feed locations — U903 Checking/clearing the paper jam counts — U904 Checking/clearing the service call counts — U905 Checking/clearing counts by the DF — U910 Clearing the black ratio data — U917 Setting the reading/writing of backup data Read U990 Checking/clearing the time for the exposure lamp to light — U992 Checking or clearing the printer count — U993 Outputting a VTC-PG pattern — U998 Outputting the memory list —

Maintenance item contents

Initial

* Initial setting for executing maintenance item U020

1-4-4

(3) Contents of maintenance mode items

2A1/2

Maintenance

item No.

U000 Outputting an own-status report

Description

Outputs lists of the current settings of the maintenance items, and paper jam and service call occurrences.

Purpose

To check the current setting of the maintenance items, or paper jam or service call occurrences. Before initializing the backup RAM, output a list of the current settings of the maintenance items to reenter the settings after initialization or replacement.

Method

1. Press the start key. A selection item appears.

2. Select the item to be output using the copy exposure adjustment keys.

Display Output list

d-L List of the current settings of the maintenance modes J-L List of the paper jam occurrences C-L List of the service call occurrences

3. Press the start key. The test copy mode is entered and a list is output. When A4/11" × 8

/2" paper is availab le, a report of this size is output. If not, specify the paper feed location.

When output is complete, the selected item appears.

Completion

Press the stop/reset key while a selection item is displayed. The indication for selecting a maintenance item No. appears.

U001 Exiting the maintenance mode

Description

Exits the maintenance mode and returns to the normal copy mode.

Purpose

To exit the maintenance mode.

Method

Press the start key. The normal copy mode is entered.

U004 Setting the machine number

Description

Displays and changes the machine number.

Purpose

To check or set the machine number.

Method

Press the start key. The currently set machine number is displayed.

Setting

1. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

2. Enter the last six digits of the machine number using the numeric or zoom +/– keys. Do not enter the first two digits, 3 and 7.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 First 3 digits 000 to 999 000 Exp. 3 Last 3 digits 000 to 999 000

3. Press the star t key. The machine number is set. The indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

1-4-5

2A1/2

Maintenance

item No. U005 Copying without paper

Description

Simulates the copy operation without paper feed.

Purpose

To check the overall operation of the machine.

Method

1. Press the start key. A selection item appears.

2. Select the item to be operated using the copy exposure adjustment keys.

Display Operation

P Only the copier operates. P-d Both the copier and DF operate (continuous operation).

3. Press the interrupt key.

4. Set the operation conditions required. Changes in the following settings can be made.

• Paper feed locations

• Magnifications

• Number of copies: continuous copying is performed when set to 99.

• Copy density

• Keys on the operation panel other than the energy saver (preheat) key

5. To control the paper feed pulley, remove all the paper in the drawers, or the drawers. With the paper present, the paper feed pulley does not operate.

6. Press the start key. The operation starts. Copy operation is simulated without paper under the set conditions. When operation is complete, the selected item appears.

7. To stop continuous operation, press the stop/reset key.

Completion

Press the stop/reset key at the screen for selecting an item. The indication f or selecting a maintenance item No. appears.

U020 Initializing all data

Description

Initializes all the backup RAM on the main PCB to return to the original settings.

Purpose

Used when replacing the main PCB.

Method

1. Press the start key.

2. Select “on” using the zoom +/– keys.

Display Operation

––– Canceling initialization on Executing initialization

3. Press the start key. All data in the backup RAM is initialized, and the original settings f or inch specifications are set. When initialization is complete, the machine automatically returns to the same status as when the main switch is turned on.

Completion

To exit this maintenance item without executing initialization, press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

1-4-6

2A1/2

Maintenance

item No.

U021 Initializing memories

Description

Initializes the setting data other than that for adjustments due to variations between respective machines, i.e., settings for counters, service call history and mode settings. As a result, initializes the backup RAM according to the specifications depending on the destination selected in U252.

Purpose

Used to return the machine settings to the factory settings.

Method

1. Press the start key.

2. Select “on” using the zoom +/– keys.

Display Operation

––– Canceling initialization on Executing initialization

3. Press the start key. All data other than that for adjustments due to variations between machines is initialized based on the destination setting. When initialization is complete, the machine automatically returns to the same status as when the main switch is turned on.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U022 Initializing backup data

Description

Initializes only the data set for the engine or scanner section.

Purpose

To be executed after replacing the scanner unit.

Method

1. Press the start key. A selection item appears.

2. Select the item to be initialized using the copy exposure adjustment keys.

Display Operation

A Engine b Scanner

3. Press the start key.

4. Select “on” using the zoom +/– keys.

Display Operation

––– Canceling initialization on Executing initialization

5. Press the star t key. The data for the engine or scanner section (U060 to 099, U403, U404 and U990) is initialized.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

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2A1/2

Maintenance

item No. U030 Checking motor operation

Description

Drives each motor.

Purpose

To check the operation of each motor.

Method

1. Press the start key. A selection item appears.

2. Select the motor to be operated using the copy exposure adjustment keys.

Display Motor

A Drive motor (DM) F1 ST feed motor (STFM)*

* Optional

3. Press the start key. The selected motor operates.

4. To stop operation, press the stop/reset key.

Completion

Press the stop/reset key after operation stops. The indication for selecting a maintenance item No. appears.

U031 Checking switches for paper conveying

Description

Displays the on-off status of each paper detection switch on the paper path.

Purpose

To check if the switches for paper con veying operate correctly.

Method

1. Press the start key.

2. Turn each switch on and off manually to check the status. While each switch is turned on, a segment of the 7-segment display lights. Segments of the 7-segment display and the switches correspond as follows:

Segments of the 7-segment display Switch

Description

* Optional.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U032 Checking clutch operation

Description

Turns each clutch on.

Purpose

To check the operation of each clutch.

Method

1. Press the start key. A selection item appears.

2. Select the clutch to be operated using the copy exposure adjustment keys.

3. Press the star t key. The selected clutch turns on for 1 s.

Display Clutch

P1 Paper feed clutch (PFCL) Pb Bypass paper feed clutch (BYPPFCL) F1 ST paper feed clutch (STPFCL)* 2F Registration clutch (RCL)

* Optional.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

Eject switch (ESW) Registration switch (RSW) ST feed switch (STFSW)*

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Maintenance

item No.

U033 Checking main switch operation

Description

Turns the main switch on by energizing the main switch off solenoid.

Purpose

To check the operation of the main switch off solenoid in auto shutoff mode.

Method

1. Press the start key. "A" appears.

2. Press the star t key. The main switch is turned on.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U034 Adjusting the print start timing

Adjustment

See pages 1-6-10 and 13.

U035 Setting folio size

Description

Changes the image area for copying onto folio size paper.

Purpose

To prevent the image at the trailing edge, or right or left side of the paper from not being copied by setting the actual size of the folio paper used.

Method

Press the start key.

Setting

1. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

2. Change the setting using the zoom +/– keys.

Copy exposure indicator Setting Setting range Initial setting

Exp. 1 Length 330 to 356 mm 330 Exp. 3 Width 200 to 220 mm 210

3. Press the start key. The value is set.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U042 Setting the LSU type

Description

Sets the type of the LSU installed in the copier.

Purpose

Used when replacing the LSU.

Method

1. Press the start key. A selection item appears.

2. Select the LSU type using the zoom +/– keys.

Display Description

A Type A b Type b C Type C

Initial setting: b

3. Press the start key. The setting is set.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U051 Adjusting the amount of slack in the paper

Adjustment

See page 1-6-17.

Description

1-4-9

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Maintenance

item No. U053 Performing fine adjustment of the motor speed

Description

Performs fine adjustment of the speeds of the motors.

Purpose

Used to adjust the speed of the respective motors when the magnification is not correct.

Method

Press the start key.

Setting

1. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

2. Change the setting using the zoom +/– keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 Drive motor speed adjustment –9.9 to +9.9 0 Exp. 3 Polygon motor speed adjustment –9.9 to +9.9 0 Exp. 5 ST feed motor* speed adjustment –9.9 to +9.9 0

Drive motor speed adjustment/ST feed motor speed adjustment (unit: %) Increasing the setting makes the image longer in the auxiliary scanning direction, and decreasing it makes the image shorter in the auxiliary scanning direction. Polygon motor speed adjustment (unit: %) Increasing the setting makes the image longer in the main scanning direction and shorter in the auxiliary scanning direction; decreasing the setting makes the image shorter in the main scanning direction and longer in the auxiliary scanning direction.

Description

3. Press the start key. The value is set.

Test copy mode

While this maintenance item is being performed, a VTC pattern shown below is output in test copy mode. Correct values for an A4/8

/2" × 11" output are:

A = 260 ± 2.6 mm B = 180 ± 1.8 mm

Figure 1-4-1

Adjustment

1. Press the printer key. The machine enters the test copy mode.

2. Press the start key. Output an A4/8

3. Measure A and B on the VTC pattern (Figure 1-4-1), and perform the following adjustments if they are different from the correct sizes:

A: Drive motor speed adjustment/ST feed motor speed adjustment B: Polygon motor speed adjustment

Completion

Press the stop/reset key at the screen for selecting an item. The indication f or selecting a maintenance item No. appears.

/2" × 11" VTC pattern.

1-4-10

2A1/2

Maintenance

item No.

U060 Adjusting the scanner input properties

Description

Adjusts the image scanning density.

Purpose

Used when the entire image appears too dark or light.

Method

Press the start key.

Setting

1. Change the setting using the zoom +/– keys.

Description Setting range Initial setting

Image scanning density 0 to 23 12

Increasing the setting makes the density lower, and decreasing it makes the density higher.

2. Press the start key. The value is set.

Test copy mode

While this maintenance item is being performed, copying from an original can be made in test copy mode.

Completion

Press the stop/reset key at the screen for selecting an item. The indication f or selecting a maintenance item No. appears.

Caution

The following settings are also reset to the initial values by performing this maintenance item:

• Exposure density gradient set in maintenance mode (U093)

• Exposure set in the copy default item of the copier management mode

U061 Turning the exposure lamp on

Description

Turns the exposure lamp on.

Purpose

To check the exposure lamp.

Method

1. Press the star t key. “on” appears.

2. Press the start key. The exposure lamp lights.

3. To turn the exposure lamp off, press the stop/reset key.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U063 Adjusting the shading position

Description

Changes the shading position.

Purpose

Used when white lines continue to appear longitudinally on the image after the shading plate is cleaned. This is due to flaws or stains inside the shading plate. To prevent this problem, the shading position should be changed so that shading is possible without being affected by the flaws or stains.

Method

1. Press the start key.

2. Change the setting using the zoom +/– keys.

Description Setting range Initial setting Change in value per step

Shading position –15 to +15 0 0.254 mm

Increasing the setting moves the shading position toward the machine right, and decreasing it moves the position toward the machine left.

3. Press the start key. The value is set.

Test copy mode

While this maintenance item is being performed, copying from an original can be made in test copy mode.

Completion

Press the stop/reset key at the screen for adjustment. The indication for selecting a maintenance item No. appears.

Description

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2A1/2

Maintenance

item No. U065 Adjusting the scanner magnification

Adjustment

See pages 1-6-27 and 28.

U066 Adjusting the leading edge registration for scanning an original on the contact glass

Adjustment

See page 1-6-29.

U067 Adjusting the center line for scanning an original on the contact glass

Adjustment

See page 1-6-30.

U068 Adjusting the scanning position for originals from the DF

Description

Adjusts the position for scanning originals from the DF.

Purpose

Used when there is a regular error between the leading edges of the original and the copy image when the DF is used.

Method

Press the start key.

Setting

1. Change the setting using the zoom +/- keys.

Description Setting range Initial setting Change in value per step

Scanning position –15 to +15 2 0.254 mm for DF originals

Increasing the setting moves the image backward, and decreasing it moves the image forward.

2. Press the start key. The value is set.

3. Press the pr inter key. The carriage moves to the scanning position for DF originals.

4. Press the stop/reset k ey. The carriage returns to its home position.

Completion

Press the stop/reset key at the screen for adjustment. The indication for selecting a maintenance item No. appears.

U070 Adjusting the DF magnification

Adjustment

See page 1-6-49.

Description

1-4-12

2A1/2

Maintenance

item No.

U071 Adjusting the DF scanning timing

Adjustment

See pages 1-6-50 and 51.

U072 Adjusting the DF center line

Adjustment

See page 1-6-52.

U073 Checking scanner operation

Description

Simulates the scanner operation under arbitrary conditions.

Purpose

To check scanner operation.

Method

1. Press the start key.

2. Select the item to be changed by lighting a copy exposure indicator using the copy exposure adjustment keys.

3. Change the setting using the zoom +/– keys.

Copy exposure indicator Operating conditions Setting range

Exp. 1 Magnification 50 to 200% Exp. 3 Paper size See below. Exp. 5 On and off of the exposure lamp on or off

Paper size for each setting

Setting Paper size Setting Paper size

9 B5 47 Folio 40 A4R 55 8 41 B5R 56 8 42 A5R 58 5

4. Press the printer key. Scanning starts under the selected conditions.

5. To stop operation, press the stop/reset key.

Completion

Press the stop/reset key when scanning stops. The indication for selecting a maintenance item No. appears.

Description

/2" × 14"

/2" × 11"R

/2" × 81/2"R

1-4-13

2A1/2

Maintenance

item No. U074 Adjusting the DF input light luminosity

Description

Adjusts the luminosity of the exposure lamp for scanning originals from the DF.

Purpose

Used if the exposure amount differs significantly between when scanning an original on the contact glass and when scanning an original from the DF.

Method

Press the start key.

Setting

1. Change the setting using the zoom +/– keys.

Description Setting range Initial setting

DF input light luminosity 0 to 8 0

Increasing the setting makes the luminosity higher, and decreasing it makes the luminosity lower.

2. Press the start key. The value is set.

Test copy mode

While this maintenance item is being performed, copying from an original can be made in test copy mode.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

1-4-14

2A1/2

Maintenance

item No.

U087 Turning the DF scanning position adjust mode on/off

Description

Turns on or off the DF scanning position adjust mode, in which the DF original scanning position is adjusted automatically by determining the presence or absence of dust on the slit glass. Also changes the reference data for identifying dust.

Reference

In the DF original scanning position adjust mode, the presence or absence of dust is determined by comparing the scan data of the original trailing edge and that taken after the original is conveyed past the DF original scanning position. If dust is identified, the DF original scanning position is adjusted for the following originals.

Purpose

Used to prevent appearance of black lines due to dust adhering in the original scanning position on the slit glass when the DF is used.

Method

1. Press the start key.

2. Select the item to be set by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description

Exp. 1 Setting the mode on/off Exp. 3 Setting the reference data for identifying dust

Setting the mode on/off

1. Select “on” or “oFF” using the zoom +/– keys.

Display Description

on DF scanning position adjust mode on oFF DF scanning position adjust mode off

Initial setting: on

2. Press the start key. The setting is set.

Setting the reference data for identifying dust

Available only when the mode is turned on.

1. Change the setting using the zoom +/– keys.

Description Setting range Initial setting

Minimum density to be regarded as dust 10 to 95 35

Example The figure indicates the density in 256 levels of gray (0: white, 255: black). When the setting is 35, data of the level of 35 or higher is regarded as dust and data of lower level is regarded as the background (scan data taken when there is no original).

Description

2. Press the start key. The value is set.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

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2A1/2

Maintenance

item No. U088 Setting the input filter (moiré reduction mode)

Description

Turns moiré reduction mode on and off by switching the input filter on and off.

Purpose

Used to prevent regular density unevenness (moiré) on halftone image areas of the copy image in text mode and text and photo mode. Such moiré is more likely to appear when an enlargement or reduction copy is made in text mode from an original containing large halftone image areas.

Method

Press the start key.

Setting

1. Select “on” or “oFF” using the zoom +/– keys.

Display Description

on Moiré reduction mode oFF Normal copy mode

Initial setting: oFF If moiré on the copy image is significant, change the setting to “on”. Note that when the moiré reduction

mode is turned on, the resolution may be slightly reduced.

2. Press the start key. The value is set. The indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U089 Outputting a MIP-PG pattern

Description

Selects and outputs a MIP-PG pattern created in the copier.

Purpose

When performing respective image printing adjustments, used to check the machine status apart from that of the scanner with a non-scanned output MIP-PG pattern.

Method

1. Press the start key.

2. Select the MIP-PG pattern to be output using the copy exposure adjustment keys.

Display Setting Setting range Initial setting

G-5 Gray scale - 180 Mono level 0 to 255 180 1-d 1-dot level - -

3. Press the printer key. The machine enters the PG pattern output mode.

4. Press the start k ey. A MIP-PG pattern is output.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

1-4-16

2A1/2

Maintenance

item No.

U091 Checking shading

Description

Performs scanning under the same conditions as before and after shading is performed, displaying the original scanning values at nine points of the contact glass.

Purpose

To check the change in original scanning values before and after shading. The results may be used to decide the causes for fixing unevenness (uneven density) of the gray area of an image: either due to optical (shading or CCD) or other problems. Also to check the causes for a white or black line appearing longitudinally.

Method

1. Press the start key. A selection item appears.

2. Select the item to be operated using the zoom +/– keys.

Display Output list

on Performs scanning before shading and displays the result. oFF Performs scanning after shading and displays the result.

3. Press the start key. Scanning is performed under the selected conditions and the result is displayed.

4. Change the measurement point by lighting a copy exposure indicator or making one flash using the copy exposure adjustment keys. For the correspondence between the measurement points and the copy exposure indicators, see Figure 1-4-2.

Description

100 mm from the machine

center toward machine rear

Machine center

100 mm from the machine

center toward machine front

123 456 789

Point

200 mm from the machine left

Copy exposure indicator

exp.1 exp.3 exp.5

Point

150 mm from

machine left

300 mm from machine left

Copy exposure indicator

exp.1 exp.3 exp.5

: Off : On : Flashing

Figure 1-4-2

1-4-17

2A1/2

Maintenance

item No. U091

(cont.)

U092 Adjusting the scanner automatically

When scanning is performed before shading, the scan value at the machine center should be slightly different from those at the machine front and rear. When scanning is perf ormed after shading, there should be no difference between respective values. Any diff erences betw een the v alues at machine front and rear indicates that scanner problem causes the fixing unevenness. If the displayed results indicate no shading problems, the fixing unevenness (uneven copy density) is caused by factors other than in the scanner section (shading or CCD). If a black line appears, the cause may be assumed based on the results of the scanning operation before shading: if a white line appears, they may be assumed based on the results of the scanning operation after shading. Note that depending on the thickness and location of the black or white line, it may not be possible to use this method to determine the cause. This is because the displa yed values obtained from scanning at the limit of nine points are insufficient to provide significant information.

5. Press the stop/reset key. The selected item appears.

Completion

Press the stop/reset key while a selection item is displayed. The indication for selecting a maintenance item No. appears.

Description

Makes auto scanner adjustments in the order below using the specified original.

• Adjusting the scanner center line (U067)

• Adjusting the scanner leading edge registration (U066)

• Adjusting scanner magnification in the auxiliary direction (U065)

When this maintenance item is performed, the settings in U065, U066 and U067 are also changed.

Purpose

Used to make respective auto adjustments for the scanner.

Method

1. Place the specified original (P/N: 2A168070) on the contact glass.

2. Press the star t key. “on” appears.

3. Press the start key. Auto adjustment starts. When adjustment is complete, “Gd” appears.

4. Display each setting value after adjustment by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Setting value

Exp. 3 Scanner center line Exp. 5 Scanner leading edge registration Exp. 1 (flashing) Scanner magnification in the auxiliary scanning direction

If a problem occurs during auto adjustment, “nG” is displayed and operation stops. Lighting the copy exposure indicator exp. 3 and then exp. 5 using the copy exposure adjustment keys will display the error code. Determine the details of the problem and either repeat the procedure from the beginning, or adjust the remaining items manually by running the corresponding maintenance items.

Completion

Press the stop/reset key after auto adjustment is complete . The indication f or selecting a maintenance item No. appears. If the stop/reset key is pressed during auto adjustment, adjustment stops and no settings are changed.

Description

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2A1/2

Maintenance

item No.

U093 Setting the exposure density gradient

Description

Changes the exposure density gradient in manual density mode, depending on respective image modes (text, text and photo, photo).

Purpose

T o set ho w the image density is altered by a change of one step in the manual density adjustment. Also used to make copy image darker or lighter.

Start

1. Press the start key. A selection item appears.

2. Select the image mode to be adjusted by lighting image mode LEDs using the image mode selection key.

3. Press the star t key. The machine enters the setting mode.

Image mode LEDs Description

AutoExp.

Text & Photo

Photo

Text

AutoExp.

Text & Photo

Photo

Text

AutoExp.

Text & Photo

Photo

Text

Density in text mode

Density in text and photo mode

Density in photo mode

Description

: Off, : On

1-4-19

2A1/2

Maintenance

item No. U093

(cont.)

Setting

1. Select the item to be adjusted by lighting a copy exposure indicator using the copy exposure adjustment

Description

keys.

2. Adjust the setting using the zoom +/– keys.

Copy exposure indicator

Description Setting range Initial setting

Exp. 1 Change in density when manual density is set dark 0 to 3 0 Exp. 3 Change in density when manual density is set light 0 to 3 0

Increasing the setting makes the change in density larger, and decreasing it makes the change smaller.

Image density

Dark

Light

Density adjustment range: Special area

Set to DARKERSet to LIGHTER

Center

Density adjustment range: Normal

Setting: 0Setting: 3

Density adjustment

Dark

Figure 1-4-3 Exposure density gradient

3. Press the start key. The value is set.

4. Press the stop/reset key. The selected item appears.

Test copy mode

While this maintenance item is being performed, copying from an original can be made in test copy mode.

Completion

Press the stop/reset key while a selection item is displayed. The indication for selecting a maintenance item No. appears.

1-4-20

2A1/2

Maintenance

item No.

U100 Setting the surface potential

Description

Changes the surface potential by changing the grid control voltage. Also performs main charging.

Purpose

To set the surface potential or check main charging. Also used when reentering data after initializing the set data.

Start

1. Press the start key. A selection item appears.

2. Select the item by lighting image mode LEDs using the image mode selection key.

Image mode LEDs Description

AutoExp.

Text & Photo

Photo

Text

AutoExp.

Text & Photo

Photo

Text

: Off, : On

Method for main charger output

1. Select the item using the cpoy exposure adjustment keys.

Display (copy exposure indicator) Description

on1 (exp. 1) Turning the main charger on on2 (exp. 3) Turning the main charger on and the laser scanner unit

2. Press the star t key. The selected operation starts.

3. To stop operation, press the stop/reset key.

Setting the grid control voltage

1. Change the setting using the zoom +/– keys.

Description Setting range Initial setting

Grid control voltage 0 to 255 197

Increasing the setting makes the surface potential higher, and decreasing it makes the potential lower. Change in value per step: approximately 3.6 V

2. Press the start key. The value is set.

Test copy mode

While this maintenance item is being performed, copying from an original can be made in test copy mode.

Completion

Press the stop/reset key when main charger output stops while a selection item is displayed. The indication for selecting a maintenance item No. appears.

Description

Setting the developing bias

Setting and checking the transfer voltage

on and off

1-4-21

2A1/2

Maintenance

item No. U101 Setting high voltages

Description

Changes the developing bias voltage and transfer voltage by changing the developing bias control voltage and transfer control voltage. Also checks the transfer output voltage.

Purpose

To check and change high voltages other than the main charger voltage.

Start

1. Press the start key. A selection item appears.

2. Select the item to be set or checked by lighting image mode LEDs using the image mode selection key.

Image mode LEDs Description

: Off, : On

Setting the developing bias

1. Select the item to be adjusted by lighting a copy exposure indicator using the copy exposure adjustment keys.

2. Change the setting using the zoom +/– keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 Developing bias control voltage 0 to 255 200 Exp. 3 Developing bias control voltage 0 to 255 34

Increasing the setting makes the developing bias higher and the image darker; decreasing it makes the bias lower and the image lighter.

3. Press the start key. The value is set.

Setting the transfer voltage

1. Select the item to be adjusted by lighting a copy exposure indicator using the copy exposure adjustment keys.

2. Change the setting using the zoom +/– keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 Transfer control voltage 0 to 255 94 Exp. 3 (on) Turning the transfer voltage – –

Exp. 5 Timing at which the transfer voltage 160 to 360 256 Exp. 1 (flashing) Timing at which the transfer voltage 450 to 650 544

Increasing the exp. 1 setting makes the transfer v oltage higher, and decreasing it makes the voltage lower. Increasing the exp. 5 setting makes the transfer voltage output timing later and improves paper separation performance.

3. Press the start key. The value is set.

4. To check the transfer voltage output, light the copy exposure indicator exp. 3 using the copy exposure adjustment keys and press the start key. The currently set transfer voltage is output.

5. To stop the transfer voltage output, press the stop/reset key.

Test copy mode

While this maintenance item is being performed, copying from an original can be made in test copy mode.

Completion

Press the stop/reset key while a selection item is displayed. The indication for selecting a maintenance item No. appears.

AutoExp.

Text & Photo

Photo

Text

AutoExp.

Text & Photo

Photo

Text

Description

Setting the developing bias

Setting and checking the transfer voltage

during image formation during no image formation

output on output turns on output turns off timing

1-4-22

2A1/2

Maintenance

item No.

U109 Setting the drum type

Description

Sets the type of the drum installed in the copier.

Purpose

To prevent variations in halftone due to differences in drum sensitivity.

Method

Press the start key.

Setting

1. Select the drum type using the zoom +/– keys.

Display Description

A Type A b Type b C Type C d Type d

Initial setting: b

2. Press the start key. The setting is set. The indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U110 Checking/clearing the drum count

Description

Displays the drum counts for checking, clearing or changing the figure, which is used as a reference when correcting the main charger potential output.

Purpose

To check the drum status. Also used to clear the count after replacing the drum during regular maintenance. Since the count was cleared before shipping, do not clear it when installing.

Method

1. Press the start key.

2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 First 3 digits 000 to 999 000 Exp. 3 Last 3 digits 000 to 999 000 Exp. 5 Clearing the count ——— ———

Description

Clearing

1. Light exp. 5.

2. Press the start ke y. The count is cleared, and the indication for selecting a maintenance item No . appears.

Setting

1. Change the count using the zoom +/– keys.

2. Press the start key. The count is set, and the indication for selecting a maintenance item No. appears.

Completion

T o exit the maintenance mode without changing the count, press the stop/reset key. The indication for selecting a maintenance item No. appears.

1-4-23

2A1/2

Maintenance

item No. U111 Checking/clearing the drum drive time

Description

Displays the drum drive time for checking, clearing or changing a figure, which is used as a reference when correcting the high voltage based on time.

Purpose

To check the drum status. Also used to clear the drive time after replacing the drum.

Method

1. Press the start key.

2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 First 2 digits 00 to 59 (min) 00 Exp. 3 Last 3 digits 000 to 999 (min) 000 Exp. 5 Clearing the drive time ——— ———

Clearing

1. Light exp. 5.

2. Press the start key. The time is cleared, and the indication for selecting a maintenance item No. appears.

Setting

1. Change the drive time (in minutes) using the zoom +/– keys.

2. Press the start key. The time is set, and the indication for selecting a maintenance No. appears.

Completion

To exit this maintenance item without changing the time , press the stop/reset k ey. The indication for selecting a maintenance item No. appears.

U130 Initial setting for the developer

Description

Automatically sets the toner sensor control voltage and toner feed start level for the installed developer.

Purpose

To set the initial settings for the developer when installing the machine or replacing the developer.

Method

1. Press the start key.

2. Press the start key. The initial settings for the developer is set, and the result is displayed.

3. Display the setting value for each item by lighting the respective copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description

Exp. 1 Toner sensor output value Exp. 3 Toner sensor control voltage Exp. 5 Toner feed start level Exp. 1 (flashing) Absolute humidity

Description

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Supplement

The following data is also renewed or cleared by performing this maintenance item:

• Renewing the toner sensor control voltage (U131)

• Renewing the toner feed start level (U156)

• Clearing the developing drive time (U157)

• Clearing the developing count (U158)

• Resetting the toner feed start level and toner empty detection

Completion

After initial setting is complete, press the stop/reset key. The indication for selecting a maintenance item No. appears.

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Maintenance

item No.

U131 Setting the toner sensor control voltage

Description

Displays or changes the toner sensor control voltage automatically set in maintenance item U130.

Purpose

To check the automatically set toner sensor control voltage. Also to change the toner density if an image is too dark or light.

Method

Press the start key. The current setting for the toner sensor control voltage is displayed.

Setting

1. Change the setting using the zoom +/– keys.

Description Setting range Initial setting

Toner sensor control voltage 0 to 255 157

Increasing the setting makes the density higher, and decreasing it makes the density lower. Increasing the setting too high may result in toner scattering.

2. Press the start key. The value is set.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U132 Replenishing toner forcibly

Description

Replenishes toner forcibly until the toner sensor output value reaches the toner feed start level.

Purpose

Used when the toner empty is detected frequently.

Method

1. Press the start key.

2. Press the start key. Operation starts, and the current data is displayed. Toner is replenished until the toner sensor output value reaches the toner feed start level.

3. Display each data by lighting the respective copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description

Exp. 1 Toner sensor output value after start key is pressed Exp. 3 Current toner feed start level Exp. 5 Current toner sensor control voltage Exp. 1 (flashing) Absolute humidity

4. To stop operation, press the stop/reset key.

Completion

Press the stop/reset key when toner replenishment stops. The indication for selecting a maintenance item No. appears.

U135 Checking toner feed motor operation

Description

Drives the toner feed motor.

Purpose

To check the operation of the toner feed motor.

Caution

Note that driving the motor unnecessarily long may cause a toner jam, resulting in machine lockup. Be sure to drive the motor for only a few seconds.

Method

1. Press the star t key. “on” appears.

2. Press the star t key. The toner feed motor turns on.

3. To stop operation, press the stop/reset key.

Completion

Press the stop/reset key when operation stops. The indication for selecting a maintenance item No. appears.

Description

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Maintenance

item No. U155 Displaying the toner sensor output

Description

Displays the toner sensor output value, and related data.

Purpose

To check the toner sensor output value.

Method

1. Press the start key.

2. Press the star t key. Sampling starts.

3. Display each data by lighting the respective copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description

Exp. 1 Toner sensor output value after start key is pressed Exp. 3 Current toner feed level (value corrected based on humidity

Exp. 5 Current toner sensor control voltage Exp. 1 (flashing) Absolute humidity

4. Press the stop/reset key. The sampling operation stops.

Completion

Press the stop/reset key when operation stops. The indication for selecting a maintenance item No. appears.

U156 Changing the toner control level

Description

Changes the toner feed start level set in maintenance item U130 or the toner empty level to be determined by the difference from the toner feed start level.

Purpose

To check the toner feed start level and toner empty level.

Method

1. Press the start key.

2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description

Exp. 1 Toner feed start level Exp. 3 Difference between the toner feed start level and toner empty

Description

and drive time)

level

1-4-26

Setting for the toner feed start level

1. Change the setting using the zoom +/– keys.

Description Setting range Initial setting

Toner feed start level 0 to 255 113

Increasing the setting makes the toner density lower.

2. Press the start key. The value is set.

Setting for the toner empty level

1. Change the setting using the zoom +/– keys.

Description Setting range Initial setting

Difference between the toner feed start level 0 to 255 44 and the toner empty level

Increasing the setting makes the toner empty level higher: the toner density is lower when the toner empty is detected.

2. Press the start key. The value is set.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

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Maintenance

item No.

U157 Checking/clearing the developing drive time

Description

Displays the developing drive time for checking, clearing or changing a figure, which is used as a reference when correcting the toner control. It is automatically cleared when U130 is executed.

Purpose

To check the developing drive time after replacing the developer.

Method

1. Press the start key.

2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 First 2 digits 00 to 59 (min) 00 Exp. 3 Last 3 digits 000 to 999 (min) 000 Exp. 5 Clearing the drive time ——— ———

Clearing

1. Light exp. 5.

2. Press the start key. The time is cleared, and the indication for selecting a maintenance item No. appears.

Setting

1. Change the drive time (in minutes) using the zoom +/– keys.

2. Press the start key. The time is set, and the indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the time , press the stop/reset k ey. The indication for selecting a maintenance item No. appears.

U158 Checking/clearing the developing count

Description

Displays the developing count for checking, clearing or changing a figure, which is used as a reference when correcting the toner control. It is automatically cleared when U130 is executed.

Purpose

To check the developing count after replacing the developer.

Method

1. Press the start key.

2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 First 3 digits 000 to 999 000 Exp. 3 Last 3 digits 000 to 999 000 Exp. 5 Clearing the count ——— ———

Description

Clearing

1. Light exp. 5.

2. Press the start ke y. The count is cleared, and the indication for selecting a maintenance item No . appears.

Setting

1. Change the count using the zoom +/– keys.

2. Press the start ke y. The count is cleared, and the indication for selecting a maintenance item No . appears.

Completion

To exit this maintenance item without changing the count, press the stop/reset key . The indication for selecting a maintenance item No. appears.

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Maintenance

item No. U161 Setting the fixing control temperature

Description

Changes the fixing control temperature.

Purpose

Normally no change is necessar y. However, can be used to prevent curling or creasing of paper, or solve a fixing problem on thick paper.

Method

Press the start key. The screen for selecting an item is displayed.

Setting

1. Select the item to be set by lighting a copy exposure indicator using the copy exposure adjustment keys.

2. Change the setting using the zoom +/– keys.

Copy exposure indicator

Exp. 1 Primary stabilization fixing temperature 100 to 165 (°C) 125 Exp. 3 Secondary stabilization fixing temperature 155 to 195 (°C) 180

The temperatures are to be set such that exp. 3 ≥ exp. 1.

3. Press the start key. The value is set.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U162 Stabilizing fixing forcibly

Description

Stops the stabilization fixing drive forcibly, regardless of fixing temperature.

Purpose

To forcibly stabilize the machine before the fixing section reaches stabilization temperature.

Method

1. Press the star t key. “on” appears.

2. Press the start key. The forced stabilization mode is entered, and stabilization operation stops regardless of fixing temperature. The indication for selecting a maintenance item No. appears. To exit the forced stabilization mode, turn the power off and on.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U163 Resetting the fixing problem data

Description

Resets the detection of a service call code indicating a problem in the fixing section.

Purpose

To prevent accidents due to an abnormally high fixing temperature.

Method

1. Press the star t key. “CLE” appears.

2. Press the start key. The fixing problem data is initialized.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description Setting range Initial setting

Description

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Maintenance

item No.

U196 Turning the fixing heater on

Description

Turns the fixing heater on.

Purpose

To check fixing heater.

Method

1. Press the star t key. “on” appears.

2. Press the start key. The fixing heater turns on for 1 s and then turns off.

Completion

Press the stop/reset key when fixing heater is off. The indication for selecting a maintenance item No. appears.

U199 Checking the fixing temperature

Description

Displays the fixing temperature and the ambient temperature.

Purpose

To check the fixing temperature and the ambient temperature.

Method

1. Press the start key.

2. Display each temperature by lighting the respective copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description

Exp. 1 Fixing temperature (°C) Exp. 3 Ambient temperature (°C)

Description

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U200 Turning all LEDs on

Description

Turns all the LEDs on the operation panel on.

Purpose

To check if all the LEDs on the operation panel light.

Method

Press the start key. All the LEDs on the operation panel light. Press the stop/reset key or wait for 10 s. The LEDs turns off, and the indication for selecting a maintenance item No. appears.

U203 Operating DF separately

Description

Simulates the original conveying operation separately in the DF.

Purpose

To check the DF.

Method

1. Press the start key.

2. Place an original in the DF if running this simulation with paper.

3. Select the item to be operated using the copy exposure adjustment keys.

Display (copy exposure indicator) Operation

d-P (exp. 1) With paper, single-sided original d-n (exp. 3) Without paper, single-sided original (continuous operation)

4. Press the start key. The operation starts.

5. To stop continuous operation, press the stop/reset key.

Completion

Press the stop/reset key when the operation stops. The indication for selecting a maintenance item No. appears.

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Maintenance

item No. U207 Checking the operation panel keys

Description

Checks operation of the operation panel keys.

Purpose

To check operation of all the keys and LEDs on the operation panel.

Method

1. Press the start key.

2. “1” appears on the copy quantity display and the leftmost LED on the operation panel lights.

3. As the keys on the operation panel are pressed in order from the left to right, the figure shown on the copy quantity display increases in increments of 1. If there is an LED corresponding to the key pressed, the LED will light.

4. When all the keys on the operation panel have been pressed, all the LEDs light for up to 10 seconds.

5. When the LEDs go off, press the start key. All the LEDs light for 10 seconds again.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

• After this check starts, the operation cannot be canceled until all the keys are checked.

U208 Setting the paper size

Description

Sets the size of paer loaded in the drawer.

Purpose

Used when changed the paper size in the drawer.

Method

1. Press the start key.

2. Select the paper source by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Paper source

Exp.1 Paper size in the drawer Exp.3 Paper size in the optional drawer

3. Select the paper size using the zoom +/- keys.

Display Paper size

A4r/814 A4R/8 A5r/811 A5R/8 b5r/FOL 5H8 B5R/Folio 5

4.Press the start key. The setting is set.

Completion

To exit this maintenance mode without the current setting, press the stop/reset key while a selection item is displayed. The indication for selecting a maintenance item No. appears.

U243 Checking the operation of the DF motors

Description

Turns the motors in the DF on.

Purpose

To check the operation of the DF motors.

Method

1. Press the start key.

2. Select the motor to be operated using the copy exposure adjustment keys.

3. Press the start key. The operation starts.

Indication (copy exposure indicator)

F-0 (exp. 1) Drives the original feed system. Turns the DF change C-0 (exp. 2) Drives the original conveying Drives the original

4. To turn each motor off, press the stop/reset key.

Completion

Press the stop/reset key when operation stops. The indication for selecting a maintenance item No. appears.

Description

/2" × 14"

/2" × 11"R

/2" × 81/2"R

ADF SDF

solenoid on.

system. conveying system.

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Maintenance

item No.

U244 Checking the DF switches

Description

Displays the status of the switches in the DF.

Purpose

To check if switches in the DF operate correctly.

Method

1. Press the start key. "-5-" appears.

2. Manually turn on and off each switch to check the status. When the on-status of a s witch is detected, the image mode LED corresponding to the operated switch lights.

Image mode LEDs Description

AutoExp.

Text & Photo

Photo

Text

AutoExp.

Text & Photo

Photo

Text

AutoExp.

Text & Photo

Photo

Text

Description

Original set switch (OSSW)

DF timing switch (DFTSW)

Safety switch (SSW)

AutoExp.

Text & Photo

Photo

Text

: Off, : On

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U250 Setting the maintenance cycle

Description

Displays and changes the maintenance cycle.

Purpose

To check and change the maintenance cycle.

Method

Press the start key. The current setting is displayed as follows: Maintenance cycle (number of copies) = setting × 1000

Setting

1. Change the setting using the zoom +/– keys.

Description Setting range Initial setting Change in value per step

Maintenance cycle 0 to 600 45 1000 (copies)

For example, when set to 120, the maintenance cycle is set to 120000.

2. Press the start key. The value is set, and the indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

DF safety switch (DFSSW)

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Maintenance

item No. U251 Checking/clearing the maintenance count

Description

Displays, clears and changes the maintenance count.

Purpose

To check the maintenance count. Also to clear the count during maintenance service.

Method

1. Press the start key.

2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 First 3 digits 000 to 999 000 Exp. 3 Last 3 digits 000 to 999 000 Exp. 5 Clearing the count ——— ———

Clearing

1. Light exp. 5.

2. Press the start key . The count is cleared, and the indication for selecting a maintenance item No. appears.

Setting

1. Change the count using the zoom +/– keys.

2. Press the start key. The count is set, and the indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the count, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U252 Setting the destination

Description

Switches the operations and screens of the machine according to the destination.

Purpose

To be executed after replacing the backup RAM on the main PCB or initializing the backup RAM by running maintenance item U020, in order to return the setting to the value before replacement or initialization.

Method

Press the start key.

Setting

1. Select the destination using the zoom +/– keys.

Display Description

JPn Metric (Japan) specifications Inc Inch (North America) specifications EUP Metric (Europe) specifications ASA Metric (Asia Pacific) specifications

2. Press the start key. The setting is set, and the machine automatically returns to the same status as when the power is turned on.

Completion

To exit this maintenance item without changing the current count, press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

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2A1/2

Maintenance

item No.

U254 Turning auto start function on/off

Description

Selects if the auto start function is turned on.

Purpose

Normally no change is necessary. If incorrect operation occurs, turn the function off: this may solve the problem.

Method

Press the start key.

Setting

1. Select either “on” or “oFF” using the zoom +/– keys.

Display Description

on Auto start function on oFF Auto start function off

Initial setting: on

2. Press the start key. The setting is set, and the indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

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Maintenance

item No. U255 Setting auto clear time

Description

Sets the time to return to initial settings after copying is complete.

Purpose

To be set according to frequency of use. Set to a comparatively long time for continuous copying at the same settings, and a comparatively short time for frequent copying at various settings.

Method

Press the start key. The current setting is displayed.

Setting

1. Change the setting using the zoom +/– keys.

Description Setting range Initial setting

Auto clear time 0 to 270 90

The setting can be changed by 30 s per step. When set to 0, the auto clear function is cancelled.

2. Press the start key. The value is set, and the indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U256 Turning auto preheat/energy saver function on/off

Description

Selects if the auto preheat/energy saver function is turned on. When set to ON, the time to enter preheat/ energy saver mode can be changed in copy management mode.

Purpose

According to user request, to set the preheat time to save energy, or enable copying promptly without the recovery time from preheat mode.

Method

Press the start key.

Setting

1. Select “on” or “oFF” using the zoom +/– keys.

Display Description

on Auto preheat/energy saver function on oFF Auto preheat/energy saver function off

Initial setting: on

2. Press the start key. The setting is set, and the indication for selecting a maintenance item No. appears. When the setting is changed from “oFF” to “on”, the auto preheat time is set to the initial setting of 15 minutes.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

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Maintenance

item No.

Description

U258 Switching copy operation at toner empty detection

Description

Selects if continuous copying is enabled after toner empty is detected, and sets the number of copies that can be made after the detection.

Method

Press the start key. The current setting is displayed.

Start

1. Press the start key. A selection item appears.

2. Select the item by lighting image mode LEDs using the image mode selection key.

Image mode LEDs Description

AutoExp.

Text & Photo

Photo

Text

AutoExp.

Text & Photo

Photo

Text

Switching copy operation at toner empty detection between single or continuous copying

Setting the number of copies after toner empty detection

: Off, : On

Setting copy operation at toner empty detection between single and continuous copying

1. Select single or continuous copying using the zoom +/– keys.

Display Description

Sin Enables only single copying. Con Enables single and continuous copying.

Initial setting: Sin

2. Press the start key. The setting is set.

Setting the number of copies after toner empty detection

1. Set the number of copies that can be made using the zoom +/– keys.

Description Setting range Initial setting

Number of copies after toner empty detection 0 to 200 (copies) 70

The setting can be changed by 5 copies per step. When set to 0, the number of copies is not limited regardless of the setting for single or continuous copying.

2. Press the start key.

Completion

Press the stop/reset key while a selection item is displayed. The indication for selecting a maintenance item No. appears.

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Maintenance

item No. U260 Changing the copy count timing

Description

Changes the copy count timing for the total counter and other counters.

Purpose

To be set according to user (copy service provider) request. If a paper jam occurs frequently in the eject section when the number of copies is counted at the time of paper ejection, copies are provided without copy counts. The copy service provider cannot charge for such copying. To prevent this, the copy timing should be made earlier. If a paper jam occurs frequently in the paper conveying or fixing sections when the number of copies is counted before the paper reaches those sections, copying is charged without a copy being made. To prevent this, the copy timing should be made later.

Method

Press the start key.

Setting

1. Select the copy count timing using the zoom +/– keys.

Display Description

FEd When secondary paper feed starts EJE When the paper is ejected

Initial setting: EJE

2. Press the start key. The setting is set, and the indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U265 Setting the destination specifications

Description

Sets whether or not to print the product name on the reports that users print.

Purpose

To be set according to user request.

Method

Press the start key. The current setting appears.

Setting

1. Enter “0” or “2” using the zoom +/– keys.

Setting Description

0 Product name printed 2 Product name not printed

Initial setting: 0

2. Press the start key. The setting is set.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

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2A1/2

Photo

Text

Text & Photo

AutoExp.

Photo

Text

Text & Photo

AutoExp.

Maintenance

item No.

Description

U332 Setting the size conversion factor

Description

Sets the factor for converting each paper size into A4/11" × 8

11" × 8

/2" size using the factor set in this maintenance item. Values set are displayed in the user simulation.

/2". The black ratio is converted for the A4/

Purpose

To set the factor to convert the black ratio of each paper size for A4/11" × 8

/2" size.

Method

1. Press the start key.

2. Select copier or printer mode by lighting image mode LEDs using the image mode selection key.

3. Select the paper size to be set by lighting a copy exposure indicator or making one flash using the copy exposure adjustment keys.

Metric specifications

Image mode LEDs

Copy exposure indicator setting

Paper size Setting range

Setting for the copier mode Exp. 1 (lit) A4R 0.0 to 3.0 1.0

Exp. 3 (lit) B5R 0.0 to 3.0 0.7 Exp. 5 (lit) A5R 0.0 to 3.0 0.5 Exp. 1 (flashing) B6R 0.0 to 3.0 0.5 Exp. 3 (flashing) A6R 0.0 to 3.0 0.5 Exp. 5 (flashing) Postcard 0.0 to 3.0 0.5 Exp. 1 (flashing) Folio 0.0 to 3.0 1.5 Exp. 3 (flashing) Non-standard 0.0 to 3.0 1.0

Setting for the printer mode Exp. 1 (lit) A4R 0.0 to 3.0 1.0

: Off, : On

Inch specifications

Image mode LEDs

Setting for the copier mode Exp. 1 (lit) 8

Copy exposure indicator setting

Exp. 3 (lit) 8 Exp. 5 (lit) 5

Paper size Setting range

/2" × 14" 0.0 to 3.0 1.5

/2" × 11"R 0.0 to 3.0 1.0

/2" × 81/2"R 0.0 to 3.0 0.5

Exp. 1 (flashing) Non-standard 0.0 to 3.0 1.0

Initial

Setting for the printer mode Exp. 1 (lit) 8

Exp. 3 (lit) 8 Exp. 5 (lit) 5

/2" × 14" 0.0 to 3.0 1.5

/2" × 11"R 0.0 to 3.0 1.0

/2" × 81/2"R 0.0 to 3.0 0.5

Exp. 1 (flashing) Non-standard 0.0 to 3.0 1.0

: Off, : On

4. Change the setting using the zoom +/– keys.

5. Press the start key. The value is set.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

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Maintenance

item No. U342 Setting the ejection restriction

Description

Sets or cancels the restriction on the number of sheets to be ejected continuously. When the restriction is set, the number of sheets that can be ejected continuously to the internal eject tray will be limited to 100.

Purpose

According to user request, sets or cancels restriction on the number of sheets.

Method

Press the start key.

Setting

1. Select “on” or “oFF” using the zoom +/– keys.

Display Description

on The number of sheets restricted. oFF The number of sheets not restricted.

Initial setting: on

2. Press the start key. The setting is set. The indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U345 Setting the value for maintenance due indication

Description

Sets when to indicate that the time for maintenance is about to be reached, by setting the number of copies that can be made before the current maintenance cycle ends. When the difference between the number of copies of the maintenance cycle and that of the maintenance count reaches the set value, the maintenance indicator flashes.

Purpose

To change the time to display the maintenance due indication.

Method

Press the start key. The current setting is displayed.

Setting

1. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 First digit 0 to 9 0 Exp. 3 Last 3 digits 000 to 999 000

2. Change the setting value using the zoom +/– keys.

3. Press the start key. The setting is set, and the indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

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Maintenance

item No.

U348 Setting the copy density adjustment range

Description

Selects the adjustment range for copy density from NORMAL and SPECIAL AREA (for wider range).

Purpose

To change the setting according to user request. When especially dark or light density is requested, set to SPECIAL AREA.

Method

Press the start key.

Setting

1. Select the density range using the zoom +/– keys.

Display Description

SPC (special area) 5 steps (enlargement mode) nrL (normal) 3 steps

Initial setting: Normal

2. Press the start key. The setting is set, and the indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U402 Adjusting margins of image printing

Adjustment

See page 1-6-15.

U403 Adjusting margins for scanning an original on the contact glass

Adjustment

See page 1-6-31.

U404 Adjusting margins for scanning an original from the DF

Adjustment

See page 1-6-53.

U407 Adjusting the leading edge registration for memory image printing

Adjustment

See page 1-6-13.

Description

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Maintenance

item No.

Description

U901 Checking/clearing copy counts by paper feed locations

Description

Displays or clears copy counts by paper feed locations.

Purpose

To check the time to replace consumable parts. Also to clear the counts after replacing the consumable parts.

Method

1. Press the start key.

2. Select the paper feed location (group No.) for which the count is to be checked or cleared by lighting image mode LEDs using the image mode selection key.

3. Change the indication of the copy quantity display by lighting a copy exposure indicator using the copy exposure adjustment keys.

Image mode LED (group No.)

AutoExp.

Text & Photo

Photo

Text

AutoExp.

Text & Photo

Photo

Text

AutoExp.

Text & Photo

Photo

Text

Copy exposure indicator

Exp. 1 First 3 digits of bypass copy count Exp. 3 Last 3 digits of bypass copy count Exp. 5 Clearing the count (CLE)

Exp. 1 First 3 digits of the drawer copy count Exp. 3 Last 3 digits of the drawer copy count Exp. 5 Clearing the count (CLE)

Exp. 1 First 3 digits of the optional drawer copy

Exp. 3 Last 3 digits of the optional drawer copy

Exp. 5 Clearing the count (CLE)

AutoExp.

Text & Photo

Photo

Text

Exp. 1 Clearing all counts (CLE)

Copy quantity display (count value)

count

: Off, : On

Note: When no optional paper feed device is installed, the counts corresponding to optional paper feed

devices will not appear.

Clearing copy counts by paper feed locations

1. Select the paper feed location to clear the count.

2. Light exp. 5 using the copy exposure adjustment key.

3. Press the start key. The count is cleared.

Clearing copy counts for all paper feed locations

1. Select group 4.

2. Press the start key. The counts are cleared.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

1-4-40

2A1/2

Maintenance

item No.

U903 Checking/clearing the paper jam counts

Description

Displays or clears the jam counts by jam locations.

Purpose

To check the paper jam status. Also to clear the jam counts after replacing consumable parts.

Method

1. Press the start key.

2. Display the jam code to check the count using the copy exposure adjustment keys.

3. Press the start key. The jam count appears. If the jam count is a 4-digit value, the first digit and the last 3 digits are displayed alternately.

4. Press the stop/reset key. The jam code appears again.

Copy exposure

J10

Stop/ reset key

adjustment keys

Start key

Copy exposure adjustment keys

Clearing all jam counts

1. Display “CLE” using the copy exposure adjustment keys. Jam counts cannot be cleared individually.

2. Press the start key. The counts are cleared.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

U904 Checking/clearing the service call counts

Description

Displays or clears the service call code counts by types.

Purpose

To check the service call code status by types. Also to clear the service call code counts after replacing consumable parts.

Method

1. Press the start key.

2. Display the service call code to check the count using the copy exposure adjustment keys.

3. Press the start ke y. The service call count appears. If the service call count is a 4-digit value, the first digit and the last 3 digits are displayed alternately.

4. Press the stop/reset key. The ser vice call code appears again.

Description

J11

Stop/ reset key

100

Figure 1-4-4

Copy exposure adjustment keys

Start key

CLE

Stop/ reset key

010

Copy exposure adjustment keys

Start key

Copy exposure adjustment keys

011

Stop/ reset key

100

Copy exposure adjustment keys

Start key

Figure 1-4-5

Clearing counts by service call codes

1. Display the service call code to clear the count.

2. Press the stop/reset key. The count is cleared.

Clearing all service call counts

1. Display “CLE” using the copy exposure adjustment keys.

2. Press the start key. The counts are cleared.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

CLE

1-4-41

2A1/2

Maintenance

item No. U905 Checking/clearing counts by the DF

Description

Displays or clears the counts of the DF.

Purpose

To check the use of the DF. Also to clear the counts after replacing consumable parts.

Method

1. Press the start key.

2. Change the indication of the copy quantity display by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Copy quantity display (count value)

Exp. 1 First 3 digits of the number of original replacement Exp. 3 Last 3 digits of the number of original replacement Exp. 5 Clearing the count (CLE)

Clearing

1. Light exp. 3 using the copy exposure adjustment keys.

2. Press the start key. The count is cleared.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

1-4-42

2A1/2

Maintenance

item No.

U910 Clearing the black ratio data

Description

Clears the accumulated black ratio data for A4/11" × 8

Purpose

To clear data as required at times such as during maintenance service.

Method

1. Press the start key.

2. Select “on” using the zoom +/– keys.

Display Operation

––– Canceling the clearing on Executing the clearing

3. Press the start key. The accumulated black ratio data is cleared.

Completion

To e xit this maintenance item without clearing the data, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U917 Setting the reading/writing of backup data

Description

Selects whether to read out the backup data on the main PCB to the NVRAM on the memory tool PCB or to write backup data on the NVRAM on the memory tool PCB to the main PCB. When the memory is initialized (maintenance items U020, U021, U022 and U252), this is set to read out the backup data from the main PCB to the NVRAM on the memory tool PCB. To write the backup data to the main PCB from the NVRAM on the memory tool PCB, change the setting before starting writing.

Purpose

Used when replacing the main PCB.

Method

1. Press the start key.

2. Select “rd” or “rE” using the zoom +/– keys.

Display Description

rd Reading out the backup data rE Writing the backup data

3. Press the start key.

Completion

To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

/2" sheets.

1-4-43

2A1/2

Maintenance

item No. U990 Checking/clearing the time for the exposure lamp to light

Description

Displays or clears the accumulated time for the exposure lamp to light.

Purpose

To check duration of use of the exposure lamp. Also to clear the accumulated time for the lamp after replacement.

Method

1. Press the start key.

2. Change the indication of the copy quantity display by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Copy quantity display

Exp. 1 First 3 digits of the lamp-on time (minutes) Exp. 3 Last 3 digits of the lamp-on time (minutes) Exp. 5 Clearing the lamp-on time (CLE)

Clearing

1. Light exp. 5.

2. Press the start key. The accumulated time is cleared, and the indication for selecting a maintenance item No. appears.

Completion

To exit this maintenance item without changing the accumulated time, press the stop/reset key. The indication for selecting a maintenance item No. appears.

U992 Checking or clearing the printer count

Description

Displays, clears or changes the print count of the printer function when the optional printer board is installed.

Purpose

To check the use of the printer function.

Method

1. Press the start key.

2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description Setting range Initial setting

Exp. 1 First 3 digits 000 to 999 000 Exp. 3 Last 3 digits 000 to 999 000 Exp. 5 Clearing the count ——— ———

Description

1-4-44

Clearing

1. Light exp. 5.

2. Press the star t key. The value is cleared and the indication for selecting a maintenance item No. appears.

Setting

1. Change the count using the zoom +/– keys.

2. Press the start key. The value is set and the indication for selecting a maintenance item No. appears.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

2A1/2

Maintenance

item No.

U993 Outputting a VTC-PG pattern

Description

Selects and outputs a VTC-PG pattern created in the copier.

Purpose

When performing respective image printing adjustments, used to check the machine status apart from that of the scanner with a non-scanned output VTC-PG pattern.

Method

1. Press the start key.

2. Select the VTC-PG pattern to be output using the copy exposure adjustment keys.

Display PG pattern to be output Purpose

Description

• Center line adjustment

• Lateral squareness adjustment

• Magnification adjustment

• Checking the fixing performance (fixing pressure)

3. Press the printer key. The machine enters the PG pattern output mode.

4. Press the start key. A VTC-PG pattern is output.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

1-4-45

2A1/2

Maintenance

item No. U998 Outputting the memory list

Description

Outputs the list of memory.

Purpose

To output the list as required.

Method

Press the start key.

Entering the address

1. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.

Copy exposure indicator Description Setting range

Exp. 1 Bit 16 to bit 23 of the address 00 to FF Exp. 3 Bit 8 to bit 15 of the address 00 to FF Exp. 5 Bit 0 to bit 7 of the address 00 to FF

2. Enter the address in hexadecimal using the zoom +/- keys.

3. Press the start key. The address is set.

Printing the list

1. Press the pr inter key. The machine enters the list output mode.

2. Press the start key. The list is printed.

Completion

Press the stop/reset key. The indication for selecting a maintenance item No. appears.

Description

1-4-46

2A1/2

1-5-1 Paper misfeed detection

(1) Paper misfeed indication

When a paper misfeed occurs, the copier immediately stops copying and displays the jam location on the operation panel. Paper misfeed counts sorted by the detection condition can be checked in maintenance item U903. To remove paper jammed in the copier, open the paper conveying cover or pull the drawer out. To remove original jammed in the DF, open the DF original switchback cover. Paper misfeed detection can be reset by opening and closing the respective covers to turn safety switch off and on.

1 Misfeed in paper feed section 2 Misfeed in paper conveying section 3 Misfeed in DF 4 Misfeed in optional drawer

Figure 1-5-1

Jam code Contents See pape

PF PF PF 15 20 22 30 40 50 70 72 73

No paper feed from drawer No paper feed from optional drawer No paper feed from bypass Misfeed in copier vertical paper conveying section Multiple sheets in copier paper feed section Multiple sheets in bypass tray Misfeed in registration/transfer section Misfeed in fixing section Misfeed in eject section No original feed An original jam in the original feed and conveying section 1 An original jam in the original feed and conveying section 2

P.1-5-3 P.1-5-3 P.1-5-3 P.1-5-3 P.1-5-3 P.1-5-4 P.1-5-4 P.1-5-4 P.1-5-4 P.1-5-5 P.1-5-5 P.1-5-5

Table 1-5-1

1-5-1

2A1/2

(2) Paper misfeed detection conditions

DFTSW

• SDF (15 cpm copier)

• ADF (18 cpm copier)

ESW

RSW

STFSW

Figure 1-5-2

1-5-2

2A1/2

1. Jam at power-on

• One or more of the switches in the paper feed conveying system is on when the main switch is turned on (jam code 00).

2. Paper feed section

• No paper feed from drawer (“PF” appears on the copy quantity display.) The registration switch (RSW) does not turn on within 1255 ms of the paper feed clutch (PFCL) turning on.

PFCL OFF

RSW

1255 ms

Timing chart 1-5-1

• No paper feed from optional drawer (“PF” appears on the copy quantity display.) The ST feed switch* (STFSW) does not turn on within 1327 ms of the ST paper feed clutch* (STPFCL) turning on.

OFF ON

STPFCL

STFSW

1327 ms

OFF ON OFF ON

Timing chart 1-5-2

• No paper feed from bypass (“PF” appears on the copy quantity display.) The registration switch (RSW) does not turn on within 1390 ms of the bypass paper feed clutch (BYPPFCL) turning on.

BYPPFCL OFF

RSW

1390 ms

OFF ON

Timing chart 1-5-3

• Misfeed in copier vertical paper conveying section (jam code 15) The registration switch (RSW) does not turn on within 2590 ms of the ST feed switch* (STFSW) turning on (when paper is fed from optional drawer).

STFSW

RSW

2590 ms

OFF ON OFF ON

Timing chart 1-5-4

• Multiple sheets in copier paper feed section (jam code 20) The registration switch (RSW) does not turn off within the time required to convey the length of the used paper size plus 2273 ms of turning on (when paper is fed from the drawer).

RSW OFF

Paper size + 2273 ms

Timing chart 1-5-5

*: Optional.

1-5-3

2A1/2

The ST feed switch* (STFSW) does not turn off within the time required to convey the length of the used paper size plus 2273 ms of turning on (when paper is fed from the optional drawer).

STFSW

Paper size + 2273 ms

OFF ON

Timing chart 1-5-6

• Multiple sheets in bypass tray (jam code 22) The registration switch (RSW) does not turn off within 5055 ms of turning on (when paper is fed from the bypass tray).

RSW OFF

5055 ms

Timing chart 1-5-7

3. Paper conveying section

• Misfeed in registration/transfer section (jam code 30) The registration switch (RSW) does not turn off within 2590 ms of the registration clutch (RCL) turning on.

RCL

RSW

2590 ms

OFF ON OFF ON

Timing chart 1-5-8

4. Fixing section

• Misfeed in fixing section The eject switch (ESW) does not turn on within 2809 ms of the registration clutch (RCL) turning on.

RCL OFF

ESW

2809 ms

OFF ON

Timing chart 1-5-9

5. Eject section

• Misfeed in eject section The eject switch (ESW) does not turn off within 2809 ms of the registration switch (RSW) turning off.

OFF

RSW

2809 ms

ESW

ON OFF ON

*: Optional.

1-5-4

Timing chart 1-5-10

2A1/2

6. DF

• No original feed (jam code 70) During the primary feed of the second or subsequent originals, the DF timing switch (DFTSW) does not turn on within the specified number of original feed motor (OFM) pulses after the original feed motor (OFM) turns on. The DF timing switch (DFTSW) still fails to turn on after up to 5 retries (ADF)/3 retries (SDF) of the original feed operation.

OFM OFF

DFTSW

Specified number of pulses*

*: SDF: 1386 P (800 ms) ADF (1): 7707 P (2200 ms) ADF (2 - 5): 5605 P (1600 ms)

Timing chart 1-5-11

• An original jam in the original feed and conveying sections 1 (jam code 72) During the secondary original feed, the DF timing switch (DFTSW) does not turn off within the specified number of original feed motor (OFM) pulses after turning on.

OFF ON

DFTSW OFF

Specified number of pulses*

*: SDF: 8400 P (4849 ms) ADF: 6476 P (time varies depending on the magnification)

Timing chart 1-5-12

• An original jam in the original feed and conveying sections 2 (jam code 73) During the secondary original feed, the DF timing switch (DFTSW) turns off within the specified number of original feed motor (OFM) pulses after turning on.

DFTSW OFF

Specified number of pulses*

*: SDF: 2217 P (1280 ms) ADF: 1393 P (time varies depending on the magnification)

Timing chart 1-5-13

1-5-5

2A1/2

(3) Paper misfeeds

Problem Causes/check procedures Corrective measures

(1) A paper jam in the paper feed, conveying, fixing or eject section is indicated as soon as the main switch is turned on.

A piece of paper torn from copy paper is caught around the registration switch, the ST feed switch*, eject switch or the DF timing switch.

Defective registration switch.

Check visually and remove any found.

With 5 V DC present at CN3-14 on the main PCB, check if CN313 on the main PCB remains low when the registration switch is turned on and off. If it does, replace the registration switch.

(2) A paper jam in the paper feed section is indicated during copying (no paper feed from drawer). “PF” appears on the copy quantity display.

Defective ST feed switch*.

Defective eject switch.

Defective DF timing switch.

Paper in the drawer is extremely curled.

Check if the paper feed pulleys are deformed.

Broken registration switch actuator.

Defective registration switch.

Check if the paper feed clutch malfunctions.

With 5 V DC present at CN5-9 on the main PCB, check if CN5-2 on the main PCB remains low when the ST feed switch* is turned on and off. If it does, replace the ST feed switch*.

With 5 V DC present at CN11-6 on the main PCB, check if CN12-5 on the main PCB remains low when the eject switch is turned on and off. If it does, replace the eject switch.

With 5 V DC present at CN11-11 on the main PCB, check if CN11-10 on the main PCB remains low when the DF timing switch is turned on and off. If it does, replace the DF timing switch.

Change the paper.

Check visually and replace the pulleys if deformed. (see page 16-3).

Check visually and replace the registration switch if its actuator is broken.

With 5 V DC present at CN3-14 on the main PCB, check if CN313 on the main PCB remains low when the registration switch is turned on and off. If it does, replace the registration switch.

Check and remedy if necessary.

(3) A paper jam in the paper feed section is indicated during copying (no paper feed from optional drawer*). “PF” appears on the copy quantity display.

*: Optional.

1-5-6

Electrical problem with the paper feed clutch.

Paper in the optional drawer* is extremely curled.

Check if the paper feed pulleys of optional drawer* are deformed.

Broken ST feed switch* actuator.

Defective ST feed switch*.

Check if the ST paper feed clutch* malfunctions.

Electrical problem with the ST paper feed clutch*.

Check (see page 1-5-24).

Change the paper.

Check visually and replace the pulleys if deformed (see page 16-5).

Check visually and replace the ST feed switch* if its actuator is broken.

With 5 V DC present at CN5-9 on the main PCB, check if CN5-2 on the main PCB remains low when the ST feed switch* is turned on and off. If it does, replace the ST feed switch*.

Check and remedy if necessary.

Check (see page 1-5-24).

Problem Causes/check procedures Corrective measures

(4) A paper jam in the paper feed section is indicated during copying (no paper feed from bypass). “PF” appears on the copy quantity display.

Paper in the bypass tray is extremely curled.

Check if the bypass paper feed pulleys are deformed.

Broken registration switch actuator.

Defective registration switch.

Change the paper.

Check visually and replace the pulleys if deformed (see page 16-9).

Check visually and replace the registration switch if its actuator is broken.

With 5 V DC present at CN3-14 on the main PCB, check if CN313 on the main PCB remains low when the registration switch is turned on and off. If not, replace the registration switch.

2A1/2

(5) A paper jam in the paper feed section is indicated during copying (jam in copier vertical paper conveying section). Jam code 15

(6) A paper jam in the paper feed section is indicated during copying (multiple sheets in paper feed section). Jam code 20

Check if the bypass paper feed clutch malfunctions.

Electrical problem with the bypass paper feed clutch.

Broken ST feed switch* actuator.

Defective ST feed switch*.

Broken registration switch actuator.

Defective registration switch.

Broken registration switch actuator.

Defective registration switch.

Check if the right and left registration rollers contact each other.

Broken ST feed switch* actuator.

Check and remedy if necessary.

Check (see page 1-5-24).

Check visually and replace the ST feed switch* if its actuator is broken.

With 5 V DC present at CN5-9 on the main PCB, check if CN5-2 on the main PCB remains low when the ST feed switch* is turned on and off. If it does, replace the ST feed switch*.

Check visually and replace the registration switch if its actuator is broken.

With 5 V DC present at CN3-14 on the main PCB, check if CN313 on the main PCB remains low when the registration switch is turned on and off. If it does, replace the registration switch.

Check visually and replace the registration switch if its actuator is broken.

With 5 V DC present at CN3-14 on the main PCB, check if CN313 on the main PCB remains low when the registration switch is turned on and off. If it does, replace the registration switch.

Check visually and remedy if necessary.

Check visually and replace the drawer feed switch*

if its

actuator is broken.

(7) A paper jam in the paper feed section is indicated during copying (multiple sheets in bypass). Jam code 22

*: Optional.

Defective ST feed switch*.

Broken registration switch actuator.

Defective registration switch.

Check if the right and left registration rollers contact each other.

With 5 V DC present at CN5-9 on the main PCB, check if CN5-2 on the main PCB remains low when the ST feed switch* is turned on and off. If it does, replace the ST feed switch*.

Check visually and replace the registration switch if its actuator is broken.

With 5 V DC present at CN3-14 on the main PCB, check if CN313 on the main PCB remains low when the registration switch is turned on and off. If it does, replace the registration switch.

Check visually and remedy if necessary.

1-5-7

2A1/2

Problem Causes/check procedures Corrective measures

(8) A paper jam in the paper conveying section is indicated during copying (jam in registration/ transfer section). Jam code 30

Check if the registration clutch malfunctions.

Electrical problem with the registration clutch.

Broken registration switch actuator.

Defective registration switch.

Check and remedy if necessary.

Check (see page 1-5-24).

Check visually and replace the registration switch if its actuator is broken.

With 5 V DC present at CN3-14 on the main PCB, check if CN313 on the main PCB remains low when the registration switch is turned on and off. If it does, replace the registration switch.

(9) A paper jam in the fixing section is indicated during copying (jam in fixing section). Jam code 40

(10) A paper jam in the eject section is indicated during copying (jam in eject section). Jam code 50

(11) An original jam in the DF is indicated during copying (no original feed). Jam code 70

Check if the registration clutch malfunctions.

Electrical problem with the registration clutch.

Broken eject switch actuator.

Defective eject switch.

Broken registration switch actuator.

Defective registration switch.

Broken eject switch actuator.

Defective eject switch.

Broken DF timing switch actuator.

Defective DF timing switch.

Check and remedy if necessary.

Check (see page 1-5-24).

Check visually and replace the eject switch if its actuator is broken.

With 5 V DC present at CN11-6 on the main PCB, check if CN11-5 on the main PCB remains low when the eject switch is turned on and off. If it does, replace the eject switch.

Check visually and replace the registration switch if its actuator is broken.

With 5 V DC present at CN3-14 on the main PCB, check if CN313 on the main PCB remains low when the registration switch is turned on and off. If it does, replace the registration switch.

Check visually and replace the eject switch if its actuator is broken.

With 5 V DC present at CN11-6 on the main PCB, check if CN11-5 on the main PCB remains low when the eject switch is turned on and off. If it does, replace the eject switch.

Check visually and replace the DF timing switch if its actuator is broken.

With 5 V DC present at CN11-11 on the main PCB, check if CN11-10 on the main PCB remains low when the DF timing switch is turned on and off. If it does, replace the DF timing switch.

1-5-8

Check if the original paper feed motor is malfunctioning.

Check if the DF forwarding pulley, DF original feed pulley or DF separation pulley is deformed.

Check and remedy.

Check visually and replace the pulley if deformed (see pages 1-6-45 and 47).

Problem Causes/check procedures Corrective measures

(12) An original jam in the DF is indicated during copying (An original jam in the original feed and conveying sections). Jam code 72, 73

Broken DF timing switch actuator.

Defective DF timing switch.

Check if the original paper feed motor is malfunctioning.

Check visually and replace the DF timing switch if its actuator is broken.

With 5 V DC present at CN11-11 on the main PCB, check if CN11-10 on the main PCB remains low when the DF timing switch is turned on and off. If it does, replace the DF timing switch.

Check and remedy.

2A1/2

Check if the DF forwarding pulley, DF original feed pulley or DF separation pulley is deformed.

Check visually and replace the pulley if deformed (see pages 1-6-45 and 47).

1-5-9

2A1/2

1-5-2 Self-diagnosis

(1) Self-diagnostic function

This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled. "C" and a number between 011 and 731 altenates, indicating the nature of the problem. After removing the problem, the self-diagnostic function can be reset by turning safety switch off and back on.

(2) Self diagnostic codes

Code Contents

C011

Backup memory data problem

• Data in the specified area of the backup memory does not match the specified values.

Causes Check procedures/corrective measures

Problem with the backup memory data.

Defective backup RAM.

Turn safety switch off and back on and run maintenance item U020 to set the contents of the backup memory data again.

If the C011 is displayed after re-setting the backup memory contents, replace the backup RAM.

Remarks

C021

C040

C041

Printer board* communication problem

• There is no reply after 20 retries at communication.

DIMM* problem

• Information on DIMM cannot be read out correctly at power-on.

Bitmap problem

• There is a problem with the data or address bus of the bitmap DRAM.

Poor contact in the connector terminals.

Defective main PCB or printer board.

Poor contact of the memory board**.

DIMM installed incorrectly.

Defective DIMM.

Poor contact of the memory board**.

DIMM installed incorrectly.

Defective DIMM.

Check the connection of connector CN20 on the main PCB and the connector on the printer board. Repair or replace if necessary.

Replace the main PCB or printer board and check for correct operation.

Check the insertion of the memory board**.

Check if the DIMM is inserted into the socket on the memory PCB correctly.

Replace the DIMM and check for correct operation.

Check the insertion of the memory board**.

Check if the DIMM is inserted into the socket on the memory PCB correctly.

Replace the DIMM and check for correct operation.

C043

*: Optional. **: Standard for 18 cpm copier/optional for 15 cpm copier.

DMA problem

• DMA transmission of compressed, decompressed, rotated, relocated or blanked-out image data does not complete within the specified period of time.

Poor contact of the memory board**.

Defective main PCB or memory board.

1-5-10

Check the insertion of the memory board**.

Replace the main PCB or memory board and check for correct operation.

2A1/2

Code Contents

C100

C104

Exposure lamp problem

• Check the CCD input value for the lighting status of the exposure lamp 100 ms after the exposure lamp is lit and the carriage is moved to the shading position. If the exposure lamp does not light, turn off the lamp. After 500 ms, light the lamp again and, a further 500 ms later, check the CCD input. The exposure lamp does not light after 5 retries.

Optical system problem

• After AGC, correct input is not obtained at CCD.

Remarks

Causes Check procedures/corrective measures

Poor contact of the connector terminals.

Defective exposure lamp.

Defective main PCB or inverter PCB.

Incorrect shading position.

CCD PCB output problem.

Poor contact of the connector terminals.

Defective exposure lamp.

Check the connection of connector CN12 on the main PCB, and the continuity across the connector terminals. Repair or replace if necessary.

Replace the exposure lamp.

Replace the main PCB or inverter PCB and check for correct operation.

Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the scanner home position switch.

Replace the ISU.

Check the connection of connector CN12 on the main PCB, and the continuity across the connector terminals. Repair or replace if necessary.

Replace the exposure lamp.

C310

C400

Scanner carriage problem

• The home position is not correct when the power is turned on or at the start of copying using the contact glass.

Polygon motor synchronization problem

• The polygon motor does not reach a stable speed within 19 s of the polygon motor remote signal turning on.

Defective main PCB or inverter PCB.

Incorrect shading position.

CCD PCB output problem.

Poor contact of the connector terminals.

Defective scanner home position switch.

Defective main PCB.

Defective scanner motor.

Poor contact of the connector terminals.

Defective polygon motor.

Replace the main PCB or inverter PCB and check for correct operation.

Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the scanner home position switch.

Replace the ISU.

Check the connection of connector CN15 on the main PCB and the continuity across the connector terminals. Remedy or replace if necessary.

Replace the scanner home position switch.

Replace the main PCB and check for correct operation.

Replace the scanner motor.

Check the connection of connector CN3 on the main PCB and the continuity across the connector terminals. Remedy or replace if necessary.

Replace the LSU.

1-5-11

Mita-Kyocera KM-1510, KM-1810 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1-1-1 Specifications

1-1-2 Parts names

(1) Copier

(2) Operation panel

1-1-3 Machine cross section

1-1-4 Drive system

(1) Drive system 1 (drive motor drive train)

(2) Drive system 2 (scanner motor drive train)

(3) Drive system 3 (original feed motor (18 cpm copier only) drive train)

1-2-1 Drum

1-2-2 Developer and toner

1-2-3 Installation environment

1-3-1 Unpacking and installation

(1) Installation procedure

1-3-2 Setting initial copy modes

1-3-3 Copier management

(1) Executing a copier management item

(2) Default settings

1-3-4 Installing the optional drawer

1-3-5 Installing the printer board/network board (option)

1-3-6 Installing the memory board (standard for 18 cpm/optional for 15 cpm)

1-4-1 Maintenance mode

(1) Executing a maintenance item

(2) Maintenance mode item list

(3) Contents of maintenance mode items

1-5-1 Paper misfeed detection

(1) Paper misfeed indication

(2) Paper misfeed detection conditions

(3) Paper misfeeds

1-5-2 Self-diagnosis

(1) Self-diagnostic function

(2) Self diagnostic codes