SHARP SF 7320, SF 7370 Diagram

SF-7370

List of test commands SF-7370~320

.7 .!

40.

Description

Note

Checkingmirrorbase movement

Full scan, includingtest command2

Displayingoptic~ systemsensorstatus(MHPS, MORS, LPS)

Displayingpaper sensorstatus(PID, PPD, POD)

Displayingcassette(CD) and waste toner (TFD) status

Checkingoperationpanel displays

5 seconds

Checkingheaterlamp

5 timesof otioff actions.

Checkingcopy lamp

5 seconds

Checkingdevelopingbias voltage.

30 seconds

Checkinghighvoltages(MHV, THV, GRID) 30 seconds

Checkingdischargelampand sidelamp

30 seconds

Canceling U1 troublestatus

Cacelling troublestatusotherthan U1 and U2

Displayingpresetm~ntenance counter

Displayingtotalcopycounter

Displayingmaintenancecounter

Clearing maintenancecounter

Copy aging test

Displayingwarmuptime

Misfeed-freeaging test

Displayingagingtest (valid onlyfor exportversion)

Fuser idle (heater lamp o~, miafeed-freeaging test (Valid onlyfor exportversion)

Disablingwarmupfunction

Checkingautomaticdeveloperfunctionandcheckingrotatingparts

Checkingvari~le magnificationmovements(No.415mirror)

(SF-73700nly)

Vtiable magnificationagingtest (No.~5 mirror)

(SF-7370 only)

Displayingpresetdeveloperwunter

Displayingdevelopercounter

Clearina develooercounter

4 6

Adjustingex~sure level

MeasuringAE sensorcharacteristics

Adjustingmagnificationratio(Iongitudindorfront and rear frame direction) (SF-7370 only)

Adjustingmagnificationratio(transversalor paper transpotidirection)

(SF-7370 only)

Adjustingcopylead edge image

ProgrammingAE again

Adjustingleadedge voidarea

Programmingcopykit

Model and destinationsetting

Programmingreverserotationtime

Programmingwarmuptime

DisplayingAE sensordata

Programmingfusertemperature

Programmingmanualfeed copy mode

Programmingfuser temperature(powersave mode)

-. .-—.-.-——----. ..

SF-7320 SF-7370

Tv~es of test commands and their functions

- , ~ - —- --—- ------.-—..—— —.

Test command

Function

The mirrorbase will pedorm fo~ard and reverse movementsautomati~lYt to check tie mimerbase action. At the same time, actionof the sensom (MHpS, MORS) can also be check~. ~~ the SF-7370 the mirrorbase may be moved forwardin the speed of desired magnificationratio in tiis test ~mmand, when the magnificationratio is chosenbeforedepressingthe PSW.

~ ON when the mirrorhome poekbn

~, —ON when the

mirroroverrun

. 8+

●

sensor (MHPS) is adke.

. . .

senam (MORS) is astke.

. . .

●

%“

— ON when tie lens home positionsensor(LPS) is active

me mirror base can be moved manually to check activationof the sensor (MHPS, MORS) on the display. The procedureisidenticaltothe test command 1.

Otiotf action of sensorswitches (PPD, POD, PID) can be checked on the display. The indicatorturnsON when the respectiveswitchisactive.

● 8%—

POD (Paper exti d-or)

● ●*O —

. . .

PID (Manuel feed paper em detester)

. . .

●

— PPD (Paper pass detector)

04 Otioff action of tie full waste toner box sensor ~FD) and cassette detector can be checked on the display. The

indicatorturnsON whenthe respectiveswitchis active.

● 8+ —

CD (Cassette detester)

. . .

●

— TFD ~oner fuUdetector)

05 All indicatorson tie operationpanel are turned on for a period of 5 seconds to check for a lamp failure or a related

circuit.

The heaterlampis turnedon and offfive timesfora periodof 0.5 second.

Heater lampturnedon for 0.5 second+ Heaterlampturned offfor0.5 second

t I Used to checkthe heater lamp drive circuit. If the heaterlampflashesduringthe above cycletith the status “H2. or .H4” on display,the failureis in the LSI input line, notthe outputlines.(Probablythermistoror LSI failure). If the lamps stay ON or OFF continuously,there may be a failurein the triac, heater lamp, or the LSI outputlines.

07 The copy lamp is turnedon for 5 seconds.

Duringthe firstone second, a fullpowervoltage is added,then the voltage appropriateto the ex~sure settingwillbe added. IMPORTANT: ~is test command must be executed with the original cover open, in order to prevent continuing

exposure of the copy lamp lightover the photoconductordrum. Neither, continuingexecutionof this test commandmustbe avoided.

Fullpowervoltage

~ (Voltageof EX.1 thruEX.5)

08 Developingbiasis turnedon for 30 seconds.

The biasvoltage and main PWB line signal checksmaybe made withthis test commend.

09 MHV, THV, GRID are turnedon for 30 seconds.

When a number 1 thm 3 is entered after the testcommand has started,the gridvoltagecan be changed.

1 ...0 m 2,..750 (w 3... +90 (w

The side blanklamps (SL) and the discharge lamp (DL) turnon for a periodof 30 seconds. Afterthe executionof this test command, each side blanklamp turnson dtemately from the frontframeside (LD401)

to the reartiame side (LD41O).

Usedto cancelthe statuscode U1.

Used to cancel the statuscode H3.

Used to check the maintenance preset counter contents. Set to 3 0, 0 00 and its contents will be displayed on the multicopynumber displayin three cycles to indicatea whole number,two digitsat a time.

Bb*

Bk *

Bhk

——

l—l :1 ~ / // / ~ 1–1 1-1 ~ I / / / ~ I–J I–I ~ / / / / ‘ *

——

ill

1–1 1–1 – – – – –.

I I I I

I I I I I I 1 –1

——

Used to checkthe machine’stotal co py count. VVillbe displayedin the same manneras (16) above.

Actualcopycountin the maintenancecounteris displayed. Will be displayedin the same manneras (16) above.

.-—— -.-.-—

5F-7W0

Test command

Function

Used to resetthe maintenancecounterto zero after the completionof machine maintenance.

This test command mustbe executedaftercompletionof machinem~ntenanCS.

1. Used to checkthe warm-uptime.

2. Used to performthe agingtest -rding to the entered copy number. When the test mmmand is entered, the machinegoes intothe ordinw machine operatingmode, and the wmup time startsto countfrom O, and increasesevew 1

second.The warmup time is indiated on the muMmPYnumber

dis~ay. When the RPL turnson, warmupcountingis stopped and the display

remainsasit is. Depressionof the CLEAR

key, entry of a copy number, and depression of the PSW begins the aging operation until the enteredcopy numberis reached.

The paper misfeeddetectfunctionstaysactive.

Agingtestis~ed outtihout usingpqer.

It wouldbe poasi~etodothe agingtestdisablingthe misfeeddetectfu~on. (tike similarto tie test command21 and the same applied to the warmuptime checkingas the teat mmmand 21.

Agingtest is ~.ed out withoutusingpaper. It WOUMbe possible to do the aging test di~ing the warmup time, heater system trouble funtion, and paper

misfeedfuncdon. (Lookssimilarto thetestmmmand21 but the heater lamp (HL) wtllnot be turnedon).

24 Pemifs machine operationalti~ks by omitdngthe warmuptime.

RPL nghta up immediately upon completionof the initial operation after the execution of the test command. It is

possibleto immediatelyproceed to check machineoperations.

1. Used to checkthe operatingstatusof the toner sensor ~CS) motor and rotatingparts.

%)+~+~+m+D

“D+m

2. Used to do the automaticdeveloperadjustment(tonerconcentration). (Automaticdeveloperadjustingmethod)

Makesurethatthe DVunitis not loaded in the copier.

NOTE: If a lower toner is met when tie main motorstarts to rotate after poweron, the toneris startedto

supply.If the DV unit not adjustedwas insertedand the power is turned on withtonerpresentin the

toner hopper, it affeds the toner concentration. It is mandatory to follow the dire~on given next

beforeadjustingthe TCS fornew developer. ~ Turn poweron. O Actuatethe doorewitchusingthe coronacleaner.

Status“CH.willcome flashingin the displaytindow.

cM --

P>\

/,.

‘<

.. ,“’

/’

~ ~=utetestmmmsnd 25. Do not pushthe printswitch.

w, ~ B + ~ ~ m ~

❑ ~ E ~ (CSW~ m

(Wh this,the cassette lampames a*e.) 0 Insertthe DVunitinthecopier. @ Presstheprintswitch.

Wth this,

the test command is executedand the developerwill be stirred for a periodof three minutes.After it

was stirredforthree minutes,the toner concentrationin the developeris interrogatedbythe main PWB. While

the developer is being stirred,the toner sensorinputvalue of 1 tiru 99 is displayed.Wme value is smaller than

.1. or lager than “99’, .EU9willbe displayed. The colorof the DV unitinsetiedwill be displayedinthe followingmanner:

Black

Red Blue Brown

Green

:+;.

o 0

x . . . G.

x x

O: ON X: OFF

NOTE: If the test command was terminated in a middle of its operation,the toner concentrationmay not be

recognized.

+ 7 hidden pages