Toshiba 1550, Service Manual

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1550/1560 OPERATION 4 - 6 Mar. 1998 © TOSHIBA
4.3 Fault Detection
If a fault occurs in the copier, a symbol corresponding to the type of fault will be displayed in order to draw
the attention of the operator.
• Classification of faults
A) Faults which can be cleared without turning OFF the door switch (S2)(yellow flashing display on
the display panel).
(1) Add paper
(2) Insert key-copy counter
(3) Replace toner bag (This is cleared by replacing the toner bag) (red flashing display)
B) Faults which can not be cleared without turning OFF the door switch (S2) (no display provided on
the display panel).
(1) Clear paper
(2) Add toner (yellow flashing display)
C) Faults which can not be cleared without turning OFF the main switch (S1).
(1) Service call
A-1) Add paper ( )
• When cassette is inserted in the machine, the paper-empty switch (S3) or (S16) detects the
existence of paper ~ When there is no paper, the switch goes OFF.
• When cassette is not inserted in the machine, the paper size switch (S4) or (S18) detects the
non-existence of cassettes ~ The paper-size switches all go OFF.
When cassette is not inserted in the
machine
When cassette is inserted in the
machine but there is no paper.
* Bypass-feed copying is possible if there is paper on the manual feed guide, even when there
is no paper in the cassette.
No-paper state
Signal is sent to control circuit.
"Add Paper" display will flash.
* Print key will be inoperable.
ff
f
6
4
7
4
8
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(3) After interrupted mode copying has finished.
Press the interrupt key, then the interrupt lamp goes OFF and the conditions prior to interruption are
resumed.
(4) Press print key.
Copying operations prior to interruption are resumed.