Self-Diagnosis And Test Functions - Sharp SF-7700 Service Manual

Table of Contents

Advertisement

SF-7700
SF-7750
[16] SELF-DIAGNOSIS AND TEST FUNCTIONS
1. Test command functions
Test
functions are used to clarify and pinpoint malfunctionsin
-rdanca
with the status codes and to manipulateo~ratiorts in
the machine by entering an appropriatetest mmmand. The status
code can be checked, changed, or Mncelled by the test command
function.in addition,variouschd~utfu~ions
may~~~o~.
'
(1) Aduation of the test commandfundions
@
Depress CLEAR, PAUSE, ZERO, and PAUSE keys in thatorder.
AJl of the indicators (except copy rati
indicator, automatic
exposure copy dens~" indi~tor) on the operationpand will go
out, and the machine will be ready to acce~ test commands.
If you do not ~plete
the entedng of CLEAR, PAUSE, ZERO,
and PAUSE keys with in 5 -rrds,
the copier will not go into
the test tie.
You will have to performthe command en~ dl
over again.
@ Program the test command by enteringthe twodigit command
code. AJthough any numberof digitscan be entered throughthe
keyboard,ort~ the last two digitsare effective.
@ Depressionof the PSW after the two digitent~, enablea theteet
program as defined by the key entry.
@ To change the command, press the PAUSE key. The test
programunder executm is terminatedand all of the frontpanel
indicatorswillgo out. The controlreturnsto Step (2) and is ready
for a new errt~.
@ To terminatethe test operationpressthe CLEAR key. Thaqier
will return to the operationalmode.
NOTE:
. Depression of the PAUSE key will discontinue the test
operationfor the test commandslisted be~:
01, 02, 03, 04, 05, 06, 07, OS,09, 10, 12, 16, 18, 19, 20, 25,
26, 27, 30, 31, 32,40, 41, 42, 43, 44,46, 47,46, 49, 50, 56,
60, 61, 70, 75, 77, 78, 79
Any operationlisted below will di~ntinue test progr~',
21,
22, 23, or 24.
1. Power sw~
off.
2. Press CLEAR+
PAUSE+
O + PAUSE+
CLEAR
. Test commands
13
and 14.
Test ~mmand, 13 and 14, are used to clear the contentsof
the selfdiagnosis (Ul, H3, H4) memorystoredin the LSl, the
program will dear automaticaJiy upon the comple~
of the
test programs 13 or 14.
Afterthis,the machinewillgototheordirtaryoperationalmode.
. Test command72 is automawily tied
afterthe execution
of the test command 72.
16-1
(
Within
J
P~strCLEAR kW
I
] Within
I
,- --
front?
I an appro~iate +
-------
~mt oommsndJ
--
-----
w
k-------
*
r ------
T
I
Tmt to tiartl~
---------
PU* Psw.
F----A
----
- --A
" .Q
Servia engineer
perform ~tions
psrtialar to the
teat commend
-~.
-----
~Tmt to
1?----
-----
puti CLEAR kW
~terminate j
-----
Mdine
~m
.
6"
.. .
--
----77
---.?..
----
...
.

Advertisement

Table of Contents
loading

This manual is also suitable for:

Sf-7750

Table of Contents