Ricoh M048 Скачать руководство пользователя страница 20 | Manualshive

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Ricoh Co. Ltd.

http://www.ricoh.com/

M049 (MF-2a) / M048 (MF-2b)

Slide 20

Installation (Output Tray Extension)

q

To avoid printed pages from tumbling out in front of
the machine, extend the Output Tray Extension*, and
open the tab within it.

w

* Note that the Output Tray Extension may be referred
to by different names in the Operating Instructions and
Service Manual.

.

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Содержание M048

Страница 1: ...icoh com M049 MF 2a M048 MF 2b Slide 1 M049 M048 Service Training Product Overview MF 2a MF 2b Most recently updated January 30th 2009 New notes text for Slide 51 Most recently updated January 29th 20...

Страница 2: ...d http www ricoh com M049 MF 2a M048 MF 2b Slide 2 The Machine This is the machine you will study in this training course Note the following w Paper tray w Bypass tray Manual feed w ADF M048 only w Op...

Страница 3: ...ter with a 600 dpi resolution These two components are integrated into a single compact machine q Documents are processed by a scanner using CIS Contact Image Sensor technology via the ADF Automatic D...

Страница 4: ...MF 2a M048 MF 2b Slide 4 Operation Panel 1 2 Go to the machine and have a look at the operation panel w Depending on the model and production date the appearance of the control panel may differ slight...

Страница 5: ...MF 2a M048 MF 2b Slide 5 Operation Panel 2 2 Go to the machine and have a look at the operation panel w Depending on the model and production date the appearance of the control panel may differ slight...

Страница 6: ...de 6 Clearance Machine depth without paper tray and AC cord 386 mm Allowing for paper tray ADF cord and AC cord clearance 449 mm Verify that there is rear clearance for the paper tray ADF cable and AC...

Страница 7: ...7 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 7 Interfaces q Model M048 provides Fax connectivity q For full details see the Service Manual and the Operating Instructions...

Страница 8: ...8 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 8 M049 M048 Service Training Specifications...

Страница 9: ...eed w 20ppm A4 from 16ppm q Copy Speed w 20cpm A4 from 16ppm q Duplex w Manual setting from no duplex q Supported OS w W 2000 XP Vista Server 2003 Vista Server 2003 new q ID Card Copy w Available prev...

Страница 10: ...owing w General Specifications w Paper sizes w Machine configuration w Optional Equipment q Note that this is a compact and lightweight machine w Non ADF Model Dimensions W x H x D 447x412x386mm depth...

Страница 11: ...ricoh com M049 MF 2a M048 MF 2b Slide 11 General Specifications 2 2 q Power supply w Single phase 220 240V 50 60 Hz 4 5 A q Power consumption w 10 12 W in Power save mode w 33 35 W in Standby w 450 W...

Страница 12: ...Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 12 Printer Specifications q Type w Laser using normal paper q Resolution w 600 dpi q Output Paper Capacity w 50 sheets face down q Zoom range w 2...

Страница 13: ...oh com M049 MF 2a M048 MF 2b Slide 13 Scanner Specifications q Type w Color scanner q Color depth w 36 bits q Resolution w 600 dpi optical w 2400 dpi interpolated q Software compatibility w TWAIN q Ma...

Страница 14: ...14 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 14 M049 M048 Service Training Installation...

Страница 15: ...tp www ricoh com M049 MF 2a M048 MF 2b Slide 15 Installation Warning q As a safety precaution the 230 V power cord must be close to the machine and positioned so that power can be quickly cut by unplu...

Страница 16: ...lation ADF Input Tray Extension q Install input tray extension for the ADF Automatic Document Feeder w Snap on as shown in illustration M048 only Note that the ADF Input Tray Extension may be referred...

Страница 17: ...ay heater for this model so humidity can greatly affect the condition of the paper w The rear of the paper tray extends beyond the back side of the machine so there is a possibility of dust build up o...

Страница 18: ...r Tray 2 2 q When loading the machine with paper pull the paper drawer all the way from the machine q Push the lower plate with PUSH stamped into the metal all the way down until it locks flat q Adjus...

Страница 19: ...er within w Note Do not shake it strongly turn it over or turn it on its end as this could cause toner to leak out q Open the front door of the machine see Operating Instructions q Holding the toner c...

Страница 20: ...on Output Tray Extension q To avoid printed pages from tumbling out in front of the machine extend the Output Tray Extension and open the tab within it w Note that the Output Tray Extension may be ref...

Страница 21: ...21 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 21 M049 M048 Service Training Machine Operation...

Страница 22: ...www ricoh com M049 MF 2a M048 MF 2b Slide 22 Before You Start Examine the following from the Operation Instructions OI before you start this training module w Guide to the components w Control Panel w...

Страница 23: ...48 MF 2b Slide 23 Lab Work User Tools System Settings Examine how to access the user tools as well as what you can change with the user tools Practice making some of these changes if you are not alrea...

Страница 24: ...Slide 24 Lab Work Basic Troubleshooting Examine and practice the basic troubleshooting procedures for the following if you are not already familiar with them General Settings OI manual w Loading paper...

Страница 25: ...Copy related Troubleshooting Examine troubleshooting techniques and practice the following reference relevant Operating Instructions w When a message is displayed w When copies are not clear w How to...

Страница 26: ...26 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 26 M049 M048 Service Training Component Layout...

Страница 27: ...27 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 27 Component Layout q Refer to the Service Manual for more detailed information Laser Unit...

Страница 28: ...Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 28 Printing Process Refer to the Service Manual for component details This machine uses a negative toner system This machine does not have toner end...

Страница 29: ...q Charge roller charges the photoconductor with the advantage of not generating ozone giving OPC drum surface negative charge More on Charge q The charge roller is of a design that doesn t generate o...

Страница 30: ...td http www ricoh com M049 MF 2a M048 MF 2b Slide 30 Charge 2 2 q Voltage to the charge roller is supplied from the Power Supply Unit board via the terminal indicated above For more details see the Se...

Страница 31: ...Laser Exposure 1 2 Laser diode produces electrostatic latent image on OPC drum w Optical Laser diode unit converts image data into laser pulses Overview As a mechanical safety feature the shutter clos...

Страница 32: ...48 MF 2b Slide 32 Laser Exposure 2 2 q Engine Board controls laser diode power APCSH and transfers printing data to laser diode VIDEO Block Diagram As an electrical safety feature interlock switch on...

Страница 33: ...ferrite q Toner mixing bar stirs and carries toner to toner application roller Toner application roller supplies toner to development roller As development roller turns past toner metering blade only...

Страница 34: ...http www ricoh com M049 MF 2a M048 MF 2b Slide 34 Development 2 2 Voltage from Power Supply Unit board powers development roller and toner application roller through terminals For more details see the...

Страница 35: ...o prevent toner from transferring to the underside of the paper the transfer roller must be cleaned before the next print job q While the machine is in the cleaning mode the Power Supply Unit board ap...

Страница 36: ...ounter blade system is used for drum cleaning The cleaning blade removes remaining toner on the drum after image is transferred to paper Removed toner is stored in the used toner tank q There is no us...

Страница 37: ...1 6 Paper Feed System Feed roller and Friction pad Paper Lift Mechanism Bottom plate with spring Sheet feeder Single sheet feeder Tray Capacity 250 sheets Paper End Detection Paper end sensor Paper S...

Страница 38: ...on pad This allows only one sheet to feed from the paper tray These are controlled by the paper feed clutch Paper Feed Drive Mechanism Paper Feed Clutch Friction Pad Upper Tray Bottom Plate Feed Rolle...

Страница 39: ...since paper feed clutch magnetic clutch is energized to turn paper feed roller Paper Feed Operation Paper Feed Clutch Paper Feed Drive Gear When paper feed clutch is energized to turn feed roller the...

Страница 40: ...2b Slide 40 Paper Feed and Registration 4 6 Registration sensor detects leading edge of paper and synchronizes paper feed with writing of image on drum enabling image and paper to match up properly T...

Страница 41: ...egistration 5 6 Built in paper end sensor detects the presence or absence of paper Sensor actuator extends through slot in paper tray bottom plate and sensor is actuated when paper is placed in upper...

Страница 42: ...q Jam 1 Paper jam at the paper cassette q Jam 2 Paper did not pass registration sensor q Jam 3 Paper did not reach the fusing unit q Jam 4 Paper jam in the fusing exit area q Jam 5 Paper no feed jam i...

Страница 43: ...it and image is fused to paper by heat and pressure of hot roller and pressure roller q CPU monitors hot roller temperature through thermistor in contact with hot roller surface Thermostat protects fu...

Страница 44: ...com M049 MF 2a M048 MF 2b Slide 44 Cover Switch q Interlock switch cuts power to the following components when front cover is opened w power pack w laser diode driver w fan motor w main motor w polyg...

Страница 45: ...M049 MF 2a M048 MF 2b Slide 45 Paper Feed Drive Release Fusing Drive Release The main motor drives the paper feed unit the transfer roller the toner cassette and fusing unit through a series of gears...

Страница 46: ...46 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 46 M049 M048 Service Training Disassembly Replacement...

Страница 47: ...M048 MF 2b Slide 47 General Precautions q Many of the parts are held in place with plastic latches which can break easily Release them carefully pushing the hook end of the latch away from the part to...

Страница 48: ...ww ricoh com M049 MF 2a M048 MF 2b Slide 48 General Precautions q When you replace a unit refer to the flowchart as shown above to confirm the steps Replacement Worksheet Chart For more details refer...

Страница 49: ...M048 MF 2b Slide 49 Removing the Operation Panel Facing the front of the machine first unlock the three rear clips of the operation panel A B and C then pull the panel towards yourself to release it f...

Страница 50: ...oh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 50 Removing the ADF Motor Cover 1 2 Remove the ADF motor cover from its two slots using a flat screwdriver Releasing Plastic Latches ADF Motor...

Страница 51: ...de of the ADF motor cover and the area it attaches to Releasing Plastic Latches Paper end Sensor The previous model had both a Paper end Sensor and a Cover open Sensor With this model the Cover open S...

Страница 52: ...able the ADF cover sensor connector and the paper sensor connector from their cable guide slide them out of the ADF scanner cover To release the plastic latches of the cover insert a flat screwdriver...

Страница 53: ...m M049 MF 2a M048 MF 2b Slide 53 Discharge Lamp Assembly Removal q To remove the Discharge Lamp assembly remove its two screws as well as the Discharge Lamp Ground Wire Bracket Discharge Lamp Screws D...

Страница 54: ...54 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 54 M049 M048 Service Training Troubleshooting...

Страница 55: ...55 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 55 Paper Jams 1 2 Potential spots in the paper path where jams may occur...

Страница 56: ...d under Paper Jam in the Service Manual Some causes include w Use of a non recommended paper type w End fence set incorrectly w Paper lift mechanism not functioning correctly w Defective paper feed mo...

Страница 57: ...issues are dealt with in the Service Manual under Print Quality such as w Blank copies w Black copies w Dirty background w Uneven image density w Vertical black lines w Horizontal black lines w Verti...

Страница 58: ...ality in the Service Manual w For blank copies Print a test pattern and then open the cover in the middle of printing Check to see if there is toner adhered to the drum surface Etc See Service Manual...

Страница 59: ...ence down arrow 5 4 and appear in transmission reports q Some examples are w 03 Stopped by operator w 04 Programmed number invalid w 08 Quality w 0B Wrong number of pages w 14 Memory full w 19 Stopped...

Страница 60: ...60 Ricoh Co Ltd http www ricoh com M049 MF 2a M048 MF 2b Slide 60 End of Course...

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