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CHAPTER 10. DIAGNOSTICS

FUNCTION

1. General

This chapter describes the diagnostic program installed to the ER-

01PU and its operations.

The purpose of this diagnostic program is to check the machine

operations in servicing and evaluate the product by continuous opera-

tions.

The diagnostic program is started by the command from the host.

Application software for test which is performed in the host PC by the

command is available.

This chapter, therefore, describes both the stand-alone operations of

the ER-01PU and test application of the host, which are identified as

the stand-alone test (ER-01PU stand-alone) and the connection test

(host).

The intended host machine is PC-AT or its compatible machines with

DOS 6.2. In this chapter.

2. Test program start

2-1. Stand-alone test

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

Turn off all DIP SW2. (Don’t care DIP SW1.)

Press and hold “JF” key and “RF” key together, and turn on the

power switch. (Master reset)

Leave the machine for about 30 sec in order to charge the

double-layer electric capacity. Then turn off the power switch.

With “JR” key pressed, turn on the power switch. (The machine

enters the test mode.)

Turn on the DIP switch corresponding to the test to be executed.

(For setting the DIP switch, refer to “3. Program Code List” on

page 10-2.)

Turn on the on-line key to start the test program.

After completion of the test, turn off the power switch and set the

DIP switch for shipment.

Shipment setting: DIP SW1/2 = All OFF (No need to change for

the connection test.)

After completion of the test, turn off the power switch and return

the DIP switch to the original state.

Execute the master reset and cancel the test mode.

ER-OIPU

Note:

When the power is turned on, the connection of printer cables

1/2 (RMTEST/JMTEST signal) and of the thermal head cable

(RHEAD signal) is tested with the diagnostics program.

X If there is no connection, the buzzer sounds continuously and

the test is terminated.

By master reset, certain data are written into memory and the

power is turned off. When the power is turned on afterward, the

memory contents are tested. (Back-up state of the double-layer

electric capacitor is tested.)

In case of insufficient charging, “###* mark is printed and the

machine enters the master reset mode automatically.

As the conditions for entering the test rode, set DIP SW1 to

DON’T CARE and DIP SW2 to ALL OFF.

If the power is turned on with even a DIP SW2 tab set to ON,

IIPL”ERR” occurs.

To test the all functions of the control PWB, perform the auto

test after completion of the DIP switch test.

The test mode cannot be canceled by turning off the power

switch. In order to cancel the test mode, the master reset must

be executed,

Swl 2

CPU

OFF

B :=: :::

CONTROL PWB

RS232 CN

RS232 LOOP CN

PANEL PWB

POWER ERROR ON-LINE ON-LINE RF

000

•1

❑ •1

Fig. 1

10-1

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 85 86

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