Testmodes and Troubleshooting Display Message “Hardware Alarm”
4-25
5. Analysis
The Desired Position and the Actual Position should be identical or close together.
By moving the printhead the function of the horizontal timing belt can be tested (value
of Actual Position is changing). The value of the head clearance is always a desired
position since there is no response of actual head clearance. Default standard = 18;
AGA = rel. position; max. value = 131 (i.e. after Initializing resp. power on).
Please analyse Task Control Code using the table below.
6. Task Control Codes
Task Control Code Meaning / Description
1 Horizontal Task – active
2 Horizontal Task – Motor is accelerating
4 Horizontal Task – Motor Break on
8 Vertical Movement – active
16 Color Motor – active
32 Motor Function Select – active
64 Motor Sheetfeeder – active
128 Adjustment Printhead Clearance – active
128 B Adjustment AGA
– shift the horizontal drive belt one notch to the right and fasten belt
again according adjustments 6.1.1 – active
256 Paper Feed Sheetfeeder – active
512 Bell (sound) – active
1024 Shiftmagnet Printhead – active
2048 Papermovement – active
4096 Tear / View from ESC Seq. – active
8192 Paper Load – active
16384 Paper Eject – active 32768 Tear or View (general) – active
The Task Control Codes may occur as combinations.
Example: code 1026
Meaning: Shiftmagnet inside the printhead active while the horizontal motor is accel-
erated.
6.1 Hardware Alarm Task Code 1, 2, 3, 4 – horizontal task
Reason Solution
Printer stops intermittent in DRAFT
mode
Install newest firmware
Non Shielded interface cable according
IEEE 1284
Use a 2m max. shielded interface cable
IEEE 1284
Damaged or dirty timing strip Clean*) or change strip
*) with a mild detergent
Head Adapter Cable Mount new adapter cable
Defective logic Install new main controller
Defective light barrier horizontal clock – Clean intensive the contacts of the flat
cable from the light barrier – Change
light barrier
Noisy horizontal motor Change CR motor
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