EnergyStar circuit description, Hound AC Circuit | Sharp SF-1020

(13) EnergyStar circuit description

The EnergyStar circuit composition saves power consumption when the user leaves the machine with the power ON.

Normally in a copy mode or in the standby mode, the main PWB connector HL signal is HIGH (5V) and the AC PWB relay (TY201) is turned on to supply power to all the power transformers and the optional power source.

When the machine is left un-operated with the power ON, the main PWB connector HL signal level becomes a high impedance to turn off the AC PWV relay (RY201), stopping power supply to the power transformers and the optional power source except for the sub DC PWB PT2 (Ref. t1). As a result, only 5V is supplied to the main PWB and the operation PWB to reduce the power consumption.

To reset from this energy save mode, press an button on the opera- tion PWB.

HOUND AC CIRCUIT

AC PWB RY201

OPTION

DC PWB

PR

SORTER

5V2

GND

AC PWB

“d ¹

OEG

DC PWB

+5V1

ILSW

OMH-SS-

X B b `

AC PWB

Vcl

TM

105LM

LI

LO

L1

+5V1

AC IN

NI

VH

NO

+24V

M A I N

N1

N/F

PT1

MirM

VFM CFM

LM SFM

P W B

JQ1-24V

HV

(AJQ1342)

VH

JAPAN ONLY

AC

PWB

+24V

ADF

ADF

DHSW

+5V

MM

DCPS

GND

CONTROL

DSW

MOTOR

24V

OPTION

HOUND-B ONLY

CONTROL

SUB

CS2M

PWB

DC PWB

ADF OPTION PWB

~

MOTOR

-

+

+28V

CONTROL

CS3M

PT2

+

PWB

DH3

~

MOTOR

OPTION

CONTROL

CS4M

DH4

PWB

OPTION

DESK DC

POWER

PWB

DESK MOTOR DRIVE PWB

DH5

DC PWB

~

+5V1

DH1

-

+

D301

OP PWB

D304

PT3

~

+5V2

DH2

+

+

GND

ADUD

GATE T1

GATE T1

VH

SF-2120/1120

~

only

200V ONLY

T2

T2

HL TRG

_

+24V

+

VH

CLR

+

+

+5V

AC PWB

+24V

~

GND

L2

120V

DC

200V

THSW

AC PWB

ADU PWB

N1

CIRCUIT

SUB DC PWB (MAIN,OP)

HL AREA

200V

PT1

CL AREA

CLTF

	THSW	HL	CL
	ADF DCPS		CL
	ADF DCPS	CLTF	CL:100V 275W
		CLTF	CL:100V 275W
	HL:1kW		200V 310W
	N2

12 – 16

Image 135

Sharp SF-1020, SF-1120 service manual EnergyStar circuit description, Hound AC Circuit

Contents

SF-1020 SF-1120 Contents Lower heat roller replacement Electrical Section Product features System configuration optionsProduct Outline Product Specifications Basic specificationsADU Description of each section SF-CM15SF-CM16 SF-LS12 Supply partsBrazil/Asia except Hong Kong Middle East/Africa Optional specifications One-step paper feed unit SF-CM16 Bin staple sorter 10-bin SS Model name SF-S54Staple section Two-step paper feed unit Model name SF-CM15 External view and internal structure Product Views SF-1020 Operation panel SF-1120 Motors Clutches and solenoids PWB Explained with the SF-1120 and the SF-CM15 POD TCSIlsw MSW Rollers, mirrors, etc Unpacking Unpacking and InstallationInstallation Installing conditions Space around the machine Installation basePower source Grounding wire connection No /3 mirror unit lock release Charger cleaningMain charger unit electrode cleaning Optical system lock release Developing unit setting Developing unit setting Developing unit level adjustment Accessory installationToner density sensor level adjustment Copy tray installationPage Center shift adjustment Label attachmentLabel attachment Parts packed together Optional two-step paper feed unit SF-CM15 installation Removing the rear cover to the main copier units lower tray ING and InstallationOptional one-step paper feed unit SF-CM16 Included parts Plugging in the relay harness Placing the main copier unit over the paper feed unitRemoving the lower tray from the main copier unit Attaching the main copier unit and paper feed unit Remove the tray Set the modeTray paper size selection Described with the SF-1020 Centering the paper Set paper, and change the paper size display Attach the tray Basic operations Descriptions of Each SectionPaper feed section General descriptions Basic composition Developing section Optical section Basic operationsGeneral description Lens home position sensor Lhps Original table Copy lampMirror Lens fixed focus lens Mirror base drive wire Lens drive wireTemperature fuse Exposure adjustment plate Original size sensing CLVEX1 EX5 CPU Optical system dirt correction Copy process This model basic process and structurePhotoconductor Process diagram CTL CGL Details of image forming processMain Charging Exposure CGL CTL Development Transfer SeparationCTL Discharging Cleaning Summary Transition of photoconductor surface potentialPhotoconductor drum sensitivity correction Process control function Basic structure Process controlProcess control timing Drum marking Fusing paper exit section GeneralBasic composition and functions Basic operation High voltage sectionADU unit SF-1120 only Basic composition Details of operation Disassembly and Assembly Paper feed unitPaper feed roller assy removal PS front roller assy Separation rollerPaper feed roller, take-up roller Transport unit Transport belt Upper heat roller assy removal Fusing sectionFusing unit removal Heater lamp replacement Upper separation pawl replacement Lower heat roller replacementLower separation pawl replacement Thermistor/thermostat removal Copy lamp replacementMirror base wire replacement and adjustment Optical system No /3 mirror unit mirror base B removal Mirror base wire removal No /3 mirror unit mirror base B assembly Mirror base wire stretchingMirror base wire fixing Page Copy lamp unit installation Mirror base a positioning No /5 mirror unit mirror base C replacementNo /5 mirror removal No /5 mirror unit assembly Lens wire removal Lens wire replacement Procedures Lens unit replacement Lens unit installationLens removal Cleaning/replacement and note High voltage sectionMain charger MC unit Process unit ~0.5 Cleaning/replacement and precautionsProcess section Transfer/separation charger TC/SC unitPage Blank lamp unit Clean every 50K copies Discharge lamp unit Clean every 50K copiesDrum Replace every 50K copies Toner reception seal Replace every 50K copies Cleaner blade Replace every 50K copiesDV side seals F/R replacement Replace every 120K copies Drum separation pawl Replace every 50K copies Ring attachment DB blade replacement Replace every 120K copies Developing unit color identification Cooling fan motor replacementOperation panel/intermediate cabinet Frame major parts Power unit Tray size detecting PWBCooling fan motor Main PWB unit AC power PWB Take-up roller/paper feed roller Multi paper feed unit SF-MF15 option ADU Reverse rollerPaper feed roller Paper feed unit SF-CM15, SF-CM16, option Adjustment procedure AdjustmentsDeveloping doctor clearance adjustment Developing magnet roller main pole position adjustment Adjustment items YES 51 50 Adjustment of each sectionLens reference position adjustment No /5 mirror reference position adjustment 110 Vertical copy magnification ratio adjustment Resolution adjustment Focus adjustment No.4/5 mirror adjustment screw Adjustment procedure Horizontal copy magnification ratio adjustment Comparison table of lens values and simulation input values Horizontal skew adjustment Vertical skew adjustment Mirror base rail handle Loosen Exposure balance adjustment Center shift adjustment Copy lead edge adjustment End of scale image Original detecting section Original detecting arm unit adjustment Original detecting level adjustment 3 4 5 6A4R LTR Purpose Operating procedureSimulations operating procedure Simulation List of simulations Cassette size switch table Simulation 26-6 Destination setting Details of simulations Full power on Psps WLT LTR INV A4R B5R ADF counter display ← Initial value OFF SEC Secl Seeg SUK SCA PPD4 PPD1PPD2 PPD3 PD3 PD0PD1 PD2 Developer counter clear Display range 8 ∼ No trouble 31 ∼ 35 --- Trouble The sub code is displayed Copying without grid bias correction AE + PE ME + PE Paper transport direction magnification ratio adjustment ADU alignment plate home position adjustment SF-2120 only 30 sec. This function can be cleared User simulation User simulation User simulation code tableLED Clearing the self diag display Self DiagnosticsSummary/purpose Operation SF-1120 only LOW High Remedies General Make a copy and adjust Set value recording sheet Memory simulation list Maintenance cycle and maintenance items Maintenance Electrical Section System block diagram System operation when the power is turned on JAMRPL on PSW on RPL OFF Main circuit Block diagram Features CPU IC6 SC3041K12FPin arrangement RAM Internal block diagramDMA Dmac ROM CPU SC3041K12F IC1 pin signal NMI RES ResetMCS CLK OUT O IC8 CXD1095Q OdenVDD O CXD1095Q IC8 pin signal PC2 CPEC2 OUT CLR ResetOden Reset PC1 CPFC1 OUT SEL a SEL B SEL C Detector circuit of sensor signalStart/stop control circuit SEL C SEL B SEL a Heater lamp control circuit Load Driver circuit Solenoid, electromagnetic clutchStepping motor drive circuit Operation CW/CCW Reset IC IC13AE Auto Exposure sensor circuit Toner supply motor drive circuit Operation panel KI0 KI1KI2 CPU Hound AC Circuit EnergyStar circuit description ADU circuit description ADU circuit block diagram ROM RAM ADU CPU IC1 Stby TXDDSR RES ADU motor DDM drive circuit Stepping motor PAM1, PAM2 drive circuit GND