ADU CPU IC1, Rom Ram | Sharp SF-1020, SF-1120 specification

(2) ADU CPU (IC1)

1. Outline

The CPU controls the loads of the ADU unit and performs data trans- mission through the copier main PWB and the serial data line to make synchronization with data transmission to control the ADU unit.

2. Feature

The H8/3297 series is a single chip microcomputer which integrates the H8/300CPU and the peripheral devices.

3. Internal block diagram

FIg. 1.1 shows the internal block diagram of the LSI.

Fig. 1.1 Internal block diagram

CPU

H8/300

Data bus (Lower)

P40/IRQ2/ADTRG

P10/A0

P11/A1

P12/A2

P13/A3

P14/A4

ROM

RAM

P41/IRQ1

P42/IRQ0

P43/RD

P44/WR

P45/AS

P15/A5

P16/A6

P17/A7

P20/A8

P21/A9

P22/A10

P23/A11

P24/A12

P25/A13

P26/A14

P27/A15

Watch-dog

timer

16-bit free

running timer

8-bit timer

x 2ch

Serial

communication

interface

10-bit A/D convertor x 8ch

P46/ φ

P47/WAIT

P30/D0

P31/D1

P32/D2

P33/D3

P34/D4

P35/D5

P36/D6

P37/D7

Port 6

Port 7

Port 5

12 – 18

Image 137

Sharp SF-1020, SF-1120 service manual ADU CPU IC1, Rom Ram

Contents

SF-1020 SF-1120 Contents Lower heat roller replacement Electrical Section Product Outline Product featuresSystem configuration options ADU Product SpecificationsBasic specifications SF-CM16 Description of each sectionSF-CM15 Brazil/Asia except Hong Kong Supply partsMiddle East/Africa SF-LS12 Optional specifications Staple section Bin staple sorter 10-bin SS Model name SF-S54Two-step paper feed unit Model name SF-CM15 One-step paper feed unit SF-CM16 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 Ilsw TCSMSW POD Rollers, mirrors, etc Installation Unpacking and InstallationInstalling conditions Unpacking Power source Installation baseGrounding wire connection Space around the machine Main charger unit electrode cleaning Charger cleaningOptical system lock release No /3 mirror unit lock release Developing unit setting Developing unit setting Toner density sensor level adjustment Accessory installationCopy tray installation Developing unit level adjustmentPage Label attachment Center shift adjustmentLabel attachment Parts packed together Optional two-step paper feed unit SF-CM15 installation Optional one-step paper feed unit SF-CM16 ING and InstallationIncluded parts Removing the rear cover to the main copier units lower tray Removing the lower tray from the main copier unit Placing the main copier unit over the paper feed unitAttaching the main copier unit and paper feed unit Plugging in the relay harness Tray paper size selection Described with the SF-1020 Set the modeCentering the paper Remove the tray Set paper, and change the paper size display Attach the tray Paper feed section Descriptions of Each SectionGeneral descriptions Basic operations Basic composition Developing section General description Optical sectionBasic operations Mirror Original table Copy lampLens fixed focus lens Lens home position sensor Lhps Temperature fuse Lens drive wireExposure adjustment plate Mirror base drive wire EX1 EX5 Original size sensingCLV CPU Optical system dirt correction Photoconductor Copy processThis model basic process and structure Process diagram Main Charging Details of image forming processExposure CTL CGL CGL CTL Development CTL TransferSeparation Discharging Cleaning Photoconductor drum sensitivity correction Transition of photoconductor surface potentialProcess control function Summary Process control timing Process controlDrum marking Basic structure Basic composition and functions Fusing paper exit sectionGeneral ADU unit SF-1120 only High voltage sectionBasic composition Basic operation Details of operation Paper feed roller assy removal Disassembly and AssemblyPaper feed unit Paper feed roller, take-up roller PS front roller assySeparation roller Transport unit Transport belt Fusing unit removal Fusing sectionHeater lamp replacement Upper heat roller assy removal Lower separation pawl replacement Upper separation pawl replacementLower heat roller replacement Mirror base wire replacement and adjustment Copy lamp replacementOptical system Thermistor/thermostat removal No /3 mirror unit mirror base B removal Mirror base wire removal Mirror base wire fixing No /3 mirror unit mirror base B assemblyMirror base wire stretching Page No /5 mirror removal Copy lamp unit installation Mirror base a positioningNo /5 mirror unit mirror base C replacement No /5 mirror unit assembly Lens wire removal Lens wire replacement Procedures Lens removal Lens unit replacementLens unit installation Main charger MC unit Cleaning/replacement and noteHigh voltage section Process section ~0.5 Cleaning/replacement and precautionsTransfer/separation charger TC/SC unit Process unitPage Drum Replace every 50K copies Blank lamp unit Clean every 50K copiesDischarge lamp unit Clean every 50K copies DV side seals F/R replacement Replace every 120K copies Cleaner blade Replace every 50K copiesDrum separation pawl Replace every 50K copies Toner reception seal Replace every 50K copies Ring attachment DB blade replacement Replace every 120K copies Operation panel/intermediate cabinet Cooling fan motor replacementFrame major parts Developing unit color identification Cooling fan motor Power unitTray size detecting PWB Main PWB unit AC power PWB Take-up roller/paper feed roller Multi paper feed unit SF-MF15 option Paper feed roller ADUReverse roller Paper feed unit SF-CM15, SF-CM16, option Developing doctor clearance adjustment AdjustmentsDeveloping magnet roller main pole position adjustment Adjustment procedure Adjustment items YES Lens reference position adjustment Adjustment of each sectionNo /5 mirror reference position adjustment 51 50 110 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 A4R LTR Original detecting level adjustment3 4 5 6 Simulations operating procedure Operating procedureSimulation Purpose 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 PPD2 PPD1PPD3 PPD4 PD1 PD0PD2 PD3 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 LED User simulationUser simulation code table Summary/purpose Self DiagnosticsOperation Clearing the self diag display 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 RPL on PSW on RPL OFF System operation when the power is turned onJAM Main circuit Block diagram Pin arrangement FeaturesCPU IC6 SC3041K12F DMA Internal block diagramDmac ROM RAM CPU SC3041K12F IC1 pin signal MCS RES ResetCLK OUT NMI VDD O IC8 CXD1095QOden O CXD1095Q IC8 pin signal Oden Reset CLR ResetPC1 CPFC1 OUT PC2 CPEC2 OUT Start/stop control circuit Detector circuit of sensor signalSEL C SEL B SEL a SEL a SEL B SEL C Heater lamp control circuit Stepping motor drive circuit Driver circuit Solenoid, electromagnetic clutchOperation Load AE Auto Exposure sensor circuit Reset IC IC13Toner supply motor drive circuit CW/CCW KI2 CPU Operation panelKI0 KI1 Hound AC Circuit EnergyStar circuit description ADU circuit description ADU circuit block diagram ROM RAM ADU CPU IC1 DSR TXDRES Stby ADU motor DDM drive circuit Stepping motor PAM1, PAM2 drive circuit GND