5103 PRINTER DIAGNOSTIC ROUTINES
These routines are used in MOts 800 through 805. The
routine numbers
are
the numbers used in MDts 800
through 805. The expected information column in the
chart contains the following types
of
information:
SA= Status byte A
SB= Status byte B
Device
Address
Bits
4-7 Device
Name
Bits
8-15
5
Printer
EC
= Error code
8
9
10
11
12
13
14
15
8
9
10
11
12
13
14
15
An error code is a
2-digit
decimal number described
under
Error
Codes
in this section.
PLFP
= Print line failure position
The print line failure position is a
4-digit
decimal
number between 0001 and 0132.
TS
= Test status
Definition
If
Ry
is even, status byte A
Print emitter latch 3
Print emitter latch 2
Print emitter latch 1
Wire check
or
not ready
Forms emitter B
Forms emitter A
Not
end
of
forms
Left margin switch
or
not
ready
If
Ry
is odd, status byte
B·
Print motor latch B
(0
= not
B)
Print motor latch A (0 = not A)
Print emitter interrupt
Not
ready interrupt
Forms motor latch B
(0
=
not
B)
Forms motor latch A
(0
=
not
A)
80 cps
=
0,
120 cps = 1
1.1
ms
or
2.66 ms (120 cps) or,
1.1
rns or 3.3 ms (80 cps) timer
interrupt
Test status is either 00
or
FF.
00 indicates a test failure
and
FF
indicates a pass.
3-52
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