Marquette Hellige GmbH MAC 1100/1200 V 1.1 Page 46
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No display on the screen
- Does the yellow Stop LED on the keypad glow after the device is switched on?
if not: - refer to "Device cannot be switched on ....”
if yes: - continue
- Does a beep sound approx. 10s after switching on the MAC1200 occur (indicates
the successful power up self-test)?
if not: - Self test error, PCB Control defective
if yes: - continue
- Contrast badly adjusted?
- Can the background illumination be activated by pressing a key?
- Can the display test in Section 3.3 be applied successfully?
if not: - graphics display module defective
- or PCB Control defective
Error in self-test identified
When an error is detected during the self-test, in addition to the message “Self-test
failed”, the error code number and a short description also appear on the display. The
meaning of the error codes is described in Section 3.7. The error codes refer to the
PCB Control, and should be noted as information for the service center.
MAC 1200 fails to give printout, no paper transport
Perform the following test in the 6-lead operating mode:
- Paper available? Paper correctly inserted? Paper transport problems (jam)?
- Paper feed flap correctly engaged on both sides?
- After pressing the start key, the green start Led must glow
if not : - keypad defective? Apply keypad test in Section 3.4
if yes: - continue
- Paper feed flap correctly engaged on both sides?
- Mark reader defective or not plugged in?
- All connections for printhead and Motor are plugged in?
- Motor blocked ? (check roller, transmission)
- Operating only on battery which is strongly depleted?
if yes: - plug in power plug
if not: - PCB Control defective
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