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1

Key operation

105 

→

 TL 

2

Functional description
This test is applicable for checking of the MODE switch. The
MODE switch must be changed as described below to do the test.
 Initial 

state 

mode: SRV 

mode

 Mode 

check

Change the MODE switch position in the order given below
starting from the SRV position.

   

Mode:
X    :

 — 

SRV

0

 — 

PGM2

1

 — 

PGM1

2

 — 

&

(

E

)

 — 

OP X/Z

3

 — 

REG

4

 

         

SRV

0

 —————— 

X2/Z2

7

 ——— 

X1/Z1

6

 —— 

MGR

5

   (X: 

E-intermediate 

position, 

F-multiple 

errors)

When the mode key settings in the sequence other than specified
is met or when any key pushed, the program execution will termi-
nate immediately upon occurrence, with the error printout pro-
duced, except for the mode switch in the middle position. To avoid
this, the mode switch must be rotated correctly. Because nothing
is interrogated until the mode key returns to the SRV position once
after the switch has turned to the "X2/Z2" positions, it needs not to
be rotated slowly.

3

Check the following items:
Check to see if the following are displayed and that the termina-
tion print is produced

4

Test termination
When the test has been completed according to the given proce-
dure, the test automatically terminates with the termination mes-
sage printed. To terminate the test in the middle of an operation,
merely depress any key, then, the test will terminate with the error
message printed. When an error was encountered, the test auto-
matically terminates with the error message printed on the printer.

        105

 E 

– 

– 

– 

–    105

Test termination print

Error print (any key depression)

The validation sensor and the near end sensor are optional units.

1

Key operation

106 

→

 TL 

2

Functional description
State of the validation and near end sensor is sensed and dis-
played.

3

Check the following items:
On and off actions of the validation and near end sensors are
tested and their results are displayed.
ON/OFF check is performed for VDS and NES and the display is
checked. 

x:   State of the VDSR sensor
y:   State of the VDSJ sensor
z:   State of the NES sensor

Display

X/Y/Z

Description

VDSR

O

Validation sensor (JOURNAL) not detected

C

Validation sensor (JOURNAL) detected

VDSJ

O

Validation sensor (RECEIPT) not detected

C

Validation sensor (RECEIPT) detected

NES

O

Journal side paper roll near end detected.

C

Journal side paper roll near end not detected.

NOTE: "C" is always displayed when no sensor is used.

4

Test termination
Any key depression causes the test to terminate with the termina-
tion message on printout.

                        106

Test termination print

1

Key operation

107 

→

 TL 

2

Functional description
After releasing the paper, the state of BOF, TOF, and IFV sensor
are sensed and displayed.

3

Check the following items:
BOF, TOF: Check the paper set condition.
IFV:

Check the connection of the ER-31SP slip printer and
slip printer interface.
Check the on and off actions.

x:   State of IFV
y:   State of the BOF sensor
z:   State of the TOF sensor

Display

x/y

Description

IFV

O

Slip printer or slip printer interface not in
connection

C

Slip printer or slip printer interface in connection

BOF

O

Slip paper not detected

C

Slip paper detected

TOF

O

Slip paper not detected

C

Slip paper detected

4

Test termination
Any key depression terminates the test with the termination print.

                        107

Test termination print

Note 1: Before performing this test, connect the slip printer and

the slip printer I/F. If not, "SLIP I/F ERR" occurs. 

Note 2: Before turning on/off the connector for IFV checking, be

sure to set the mode to other than SRV and turn off the
power. 

1

Key operation

108 

→

 TL 

Functional description
This program is used to test the calendar oscillator function.

DOT DISPLAY :

M O D E

S

T

X

W

X: 0~7,E,F

I

C H

DOT DISPLAY :

V D S

E S

y

x

N

z

DOT DISPLAY :

I F

F

x y

B T

V

z

 32 

2

Check the following items:
i)

Testing blinking "–". (500ms ON and OFF)

3

Test termination
Any key depression terminates the test with the termination print.

                        108

Test termination print

1

Key operation

109 

→

 TL 

2

Functional description
If an SSP is programmed, its contents are automatically checked
and the result is printed.

3

Check the following items:
Check printing of the termination message.

4

Test termination
The test terminates automatically after printing the termination
print.

            109

  E – – – – –   109

  F – – – – –   109

Normal 

end 

print

 Error 

print   

 SSP 

table 

full 

print 

(NOTE)

Note: In this SSP check, set the data for check in the empty area of

SSP entry REG and erase the data for check after completion
of check. Therefore, SSP setting before check is not cleared.
If, therefore, there is no SSP entry REG remained for SSP
check, F-print (SSP entry register full print) is performed to
terminate the program without check. 

1

Key operation

110~113 

→

 TL 

2

Functional description
The drawer indicated by the job number is opened to check the
proper action.
Drawer opened: O indicated
Drawer closed:

C indicated

110:   Drawer-1:   Option drawer
111:   Drawer-2:   Remote drawer
112:   Drawer-3:   Remote drawer

113:   Drawer-4:   Remote drawer

3

Check the following items:
a) Check opening of the specified drawer.
b) Check the display indication when the drawer is open and

close.

4

Any key depression terminates the test with the termination print.

                        11X

Test termination print

  X: 0~3

1

Key operation 

116 

→

 TL 

2

 Functional description
The display CGs in CKDC4 are checked. The 256 CGs are
grouped into 32 blocks and each 8 characters is displayed on the
dot display. 
The check start with CG code 00H - 07H, and the following blocks
are sequentially displayed when any key is pressed. 

♠

 : CG display position

xy: The initial code of each block is displayed

in hexadecimal (For example, A0, B8)

3

Check the following items. 
1. Check that the display is normal. 
2. Check that there is no blur, defects, and unevenness. 

4

Test termination
To terminate the test, set the mode key to any mode other than
SRV mode. 

                        116

Test termination print

1

Key operation

117 

→

 TL 

2

Functional description
The following two kinds of loopback tests are carried out using the
special service tool (UKOG-6704RCZZ) to check the trans and
receive data, ready, and not ready signals.

Test-1:

Checks ER – DR, RS-CD and RR-CS

Test-2:

Checks TXD – RXD

3

Check the following items:
Successful test results must be checked on the display and the
termination message print.

4

Test termination

        117

 EX 

– 

– 

– 

–   117

Termination print

X = 1: Non connect error

2: Verify error
3: Hardware error
4: P-OFF
5: Timer overflow error

1

Key operation

120 

→

 TL 

2

Functional description
Perform the following check for the standard RAM 128 KByte
SRAM. The memory contents should not be changed before and
after the check.

Perform the following processes for memory address to be
checked (1C0000H~1DFFFFH).
PASS1: Save memory data.

PASS2: Write data "0000H."
PASS3:  Read and compare data "00H," write data "55H."
PASS4:  Read and compare data "55H," write data "AAH."
PASS5: Read and compare data "AAH."
PASS6:  Restore the memory data.

If a comtare error occurs in the check sequence PASS1-PASS6,
an error print is made. If no error occurs through all address, the
check ends normally.

DOT DISPLAY :

D R

W

x

A

E R

x: 1~4
y: O= Drawer opened
    C= Drawer closed

y

POP UP DISPLAY :

DOT DISPLAY :

T

I

E

K

C

C

M

-

**-**: Present time

R

H E

*

*

* *

DOT DISPLAY :

x y :

 33 

The following address check is performed further.
Check point address = 1C0000H, 1C0001H

1C0002H, 1C0004H
1C0008H, 1C0010H
1C0020H, 1C0040H
1C0080H, 1C0100H
1C0200H, 1C0400H
1C0800H, 1C1000H
1C2000H, 1C4000H
1C8000H, 1D0000H

Initialize the table pointer

Read check address from the
address table by pointer
sccess

Save data of check address
to the CPU register

Write data 55H to check
address

For check address other than
the current check address,
write AAH after saving 1-byte
data into the register

Is the

current check

address 55H?

Reset operation of saved data

Is the

operation comleted

for the other check

address?

Revise the table pointer

Is the

address table

completed?

End

YES

YES

YES

NO

Address
error

NO

NO

Check address
table

START

Table pointer

END

Operation flow

 34 

3

Check the following items:
Check the termination printout.

4

Test termination
The test terminates after printing the termination printout.

Termination printout:

 Normal termination

120 

  Abnormal termination

  Ex – – – – –

120 

≅ ≅ ≅ ≅ ≅

 

X = 1: Data check error

2: Address check error

Note: When an error occurs, the error print is performed and the

check is terminated. The error occurrence address is shown in
hexadecimal at positions shown with 

≅ ≅ ≅ ≅ ≅

.

1

Key operation

130 

→

 TL 

2

Functional description
Sum check of the standard ROM (C00000H - C7FFFFH) is per-
formed. If the lower two digits of SUM is 10H, it is normal. 

3

Check the following items:
Check the printout after the test.

4

Test termination
The test automatically terminates with termination message.

Normal termination print

 

130 

 S-ROM

27040

≅ ≅ ≅ ≅ ≅

 

≅ ≅ ≅ ≅ ≅

 

Error termination print

  E – – – –  

130 

 S-ROM 

27040

≅ ≅ ≅ ≅ ≅

 

≅ ≅ ≅ ≅ ≅

 

Note:  "

≅ ≅ ≅ ≅ ≅

" means the ROM version number. 

The underlined section (10 bytes) of code table is provided in
the ROM as a standard and the table content is always
printed. 
The table position is the upper 10 digits of the ROM address.
The check sum correction address is the last address -0FH.

Note: In the case of the ER-ROM, the ROM version number is dis-

played in the upper and the lower stages.
In the case of the MASK-ROM (future specification), the
MASK ROM code is displayed in the upper stage, and the
ROM version number is displayed in the lower stage.

 130 

 S-ROM

27040RAJ1A  

RAJ1A  

   

400 

 O-ROM 

27020RAP1A  

RAP1A  

The dot pulse width adjust circuit is provided to control the width of
the current applied to the dot head of the printer KI-OB6753RCZZ,
according to a supply voltage fluctuation. 
When the circuit is changed with a new one for such as a repair work,
the dot pulse width needs to be adjusted using the 200K pot VR1.

Fig. 3-3

1. Turn power on.

2. Measure the voltage of the VP line between the fuse F1 and GND.

Use a digital voltmeter capable of measuring 100mV steps.

3. Set the MODE switch to the SRV position and start the diagnostic

program Job #150 with the next command procedure.

150 

→

 TL 

4. Adjust pulse width of TPW at the test point TP1 as shown in the

graph in Fig.3. The pulse width of TPW can be adjusted using the
200K pot VR1.

5. To terminate the diagnostic program, just press any key.

FIg. 3-4

Fig. 3-5

∗

For the adjustment of VP, refer to CHAPTER 7. SERVICE PRE-
CAUTION. (Printer printing speed adjustment)

DOT DISPLAY :

S T

M

R O

R

+24V

VP

TRG

1

IC17A

65503

R104

130KF

D5

133

D22

E562

R48

R49

62K

2K

3

2

C88

0.01µ

ZD4

RD4.3

4

+

-

1

8

R50

3.3K

TP1

PE

IC11B

GL393

+5V

+5V

VR1

200K

VP

16

VR1

TP1

GND

Pd

Pw

Pt

TRG

TP1(PE)

Pw
Pt

4µsec
1000µsec

Pd is adjusted to 518 usec when Vp is +24.0V.

 35 