DOWNLOAD Sharp MX-FN21 / MX-FN22 (serv.man4) Service Manual ↓ Size: 18.63 MB | Pages: 127 in PDF or view online for FREE

Model
MX-FN21 MX-FN22 (serv.man4)
Pages
127
Size
18.63 MB
Type
PDF
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Service Manual
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Device
Copying Equipment / Service Manual
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mx-fn21-mx-fn22-sm4.pdf
Date

Sharp MX-FN21 / MX-FN22 (serv.man4) Service Manual ▷ View online

2
2
2-6
2-6
TECHNICALDESCRIPTIONS>TransportSection
TECHNICALDESCRIPTIONS>TransportSection
Thepapersurfaceontheloadtraysection(uppertray/lowertray)isdetectedbythelight
emittingsection(PBA600)andthelightreceivingsection(PBA700)ofthetraypapersurface
sensor(FinisherPaperLevelSensor/FinisherPaperLevelDetector).
Whenthetraypapersurfacesensorisshieldedtodetectpaper,theloadtrayisloweredby
2mm.
Paper
Load tray
PBA600
Light
emitting
section
Load tray
Paper
Light
receiving
section
PBA600
PBA700
PBA700
F-2-12
F-2-12
Processtraytransportoperation
Whentheshiftoperationorthestapleoperationisperformed,thismachineloadspaperon
theprocesstraysectionandthendischargespapertotheloadtraysection.
Paper loaded on the process tray is subject to the shift operation or the staple operation,
thendischargedtotheloadtraysectionbythegripper.
Gripper
Intheshiftoperation,thenumberofsheetsofthebundledischargedtotheloadtraysection
isasshowninthetablebelow.
Numberofsheetsofbundle
Plainpaper
Coatedpaper
/Heavypaper
Paperlength>216mm
3sheets
2sheets
216mm ≧ Paperlength
4sheets
F-2-13
F-2-13
T-2-4
T-2-4
2
2
2-7
2-7
TECHNICALDESCRIPTIONS>TransportSection
TECHNICALDESCRIPTIONS>TransportSection
Buffertransportoperation
While the shift operation or the staple operation is performed in the process tray section,
papersentfromtheconnectedunitisloadedtothebufferpath.
Papersizeforthebuffertransportoperation:A4,B5,LTR
Numberofsheetsenableforbufferpathloading:1sheetor2sheets
Thepaperrearedgeistransportedfromthebufferflappersectiontothespecifieddistance.
Buffer flapper
F-2-14
F-2-14
ThebufferflapperisswitchedbytheFinisherPaperTransportRollerLiftMotor(FNM119).
The Finisher Paper Transport Motor2 (FSM102) is reversed to transport paper so that the
paperleadedgereachesthespecifieddistanceinthebufferpathsection.
Transport roller 3
Paper exit
front roller
Buffer roller
Buffer flapper
F-2-15
F-2-15
2
2
2-8
2-8
TECHNICALDESCRIPTIONS>TransportSection
TECHNICALDESCRIPTIONS>TransportSection
ThebufferflapperisswitchedbytheFinisherPaperTransportRollerLiftMotor(FNM119)to
rotate the Finisher Paper Transport Motor2 (FSM102), transporting the next paper and the
paperloadedinthebuffersectionoverlappedtogether.
Transport roller 3
Paper exit
front roller
Buffer roller
Buffer flapper
Whenasheetofpaperisloadedinthebuffersection,overlappedpaperistransportedtothe
processtraysection.
When two sheets of paper are loaded in the buffer section, overlapped paper is loaded to
thebufferpathsection,andtransportedtotheprocesstraysectiontogetherwiththenext
paper.
F-2-16
F-2-16
Memo :
Bundleexitauxiliarymechanism
Whenstackinglongpaper,thepaperleadedgefallsbyitsownweight.Itmay
causeanalignmenttroubleofloadedpaperintheprocesstray.
When,therefore,loadinglongpaper,thetrayauxiliaryguideisextendedto
preventthepaperleadedgefromfalling.
Tray auxiliary guide
F-2-18
F-2-18
2
2
2-9
2-9
TECHNICALDESCRIPTIONS>LoadTraySection
TECHNICALDESCRIPTIONS>LoadTraySection
LoadTraySection
Stacktrayoperation
Thismachineisprovidedwiththreepaperexittrays:theuppertray,themiddletray,andthe
lowertrayfromthetop.
Themiddletrayisfixedtothelowersectionoftheuppertray.Theuppertrayandthelower
trayperformliftingoperationsindependently.
The middle tray is provided with the Finisher Paper Delivery Middle Tray Paper Detector
(FNS130). When the middle tray becomes full, the finisher controller PWB notifies the
connectedunitthatthemiddletrayisfull.
The finisher controller PWB switches the drive directions of the Finisher Upper Tray Lift
Motor(FNM105),theFinisherLowerTrayLiftMotor(FNM106)(includedinthemotordriver
PWB)tocontrolup/downmovementoftheuppertrayandthelowertray.
Todetectpresenceofpaperintheuppertrayandthelowertray,theFinisherPaperDelivery
Upper Tray Paper Detector (FNS104) and the Finisher Paper Delivery Lower Tray Paper
Detector(FNS105)areprovided.
The home position of the upper tray is detected by the upper tray paper surface sensor
(FNS118), and the home position of the lower tray is detected by the lower tray paper
surfacesensor(FNS143).
Thehomepositionisthetopsurfaceofpaperwhenpaperisloadedintheuppertray,orthe
positionwherethetrayedgeisdetectedwhennopaperisloadedintheuppertray.
The Finisher Lower Tray Paper Level Detector (FNS143) detects the paper surface when
paperof651sheetsormoreisloadedinthelowertray.
Whenthepowerissupplied,thefinishercontrollerPWBdrivestheFinisherUpperTrayLift
Motor(FNM105)andtheFinisherLowerTrayLiftMotor(FNM106)toreturntheuppertray
andthelowertraytotheirhomepositions.
Ifthetrayisonthehomepositionfromthebeginning,itisshiftedfromthehomepositionand
returnedtothehomepositionagain.Whenbothoftheuppertrayandthelowertrayareon
theirhomepositions,thisoperationisperformedinthesequenceofthelowertrayandthen
theuppertray.Whenthelowertrayisspecifiedbytheconnectedunit,thefinishercontroller
PWBliftsthelowertraysothatitisatthepaperexitport.
When paper is loaded to the tray, the Finisher Upper Tray Lift Motor (FNM105) or the
FinisherLowerTrayLiftMotor(FNM106)isdrivenbythespecifiednumberofpulsestolower
thetray.Then,thetrayreturnstothehomepositionfornextloading.
The upper and the lower limits of the tray are detected by the three area sensors on the
uppertray/lowertrayshiftareasensorPWB.
WhenthefinishercontrollerPWBdetectstheupperlimitorthelowerlimitofthetray,itstops
theFinisherUpperTrayLiftMotor(FNM105)andFinisherLowerTrayLiftMotor(FNM106).It
alsodetectsanoverloadoflarge-sizepaperandmixedpaperbythecombinationofON/OFF
oftheareasensors.
When the Finisher Tray Proximity Switch (FNSW110) is turned ON, the finisher controller
PWBshutsoffsupplyof+24VtotheFinisherUpperTrayLiftMotor(FNM105),stoppingthe
operationofthefinisher.
Finisher Tray
Proximity
Switch
Upper Tray
area sensor PWB
Finisher
Upper Tray
Lift Motor
Finisher Lower Tray
Lift Motor
Rack
Rack
Finisher
Paper Delivery
Lower Tray
Paper Detector
Shielding plate
Lower Tray
area sensor PWB
Finisher Paper
Delivery Upper Tray
Paper Detector
F-2-19
F-2-19
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