HP 1055CMHP - Manual (Page 80)

Service Tests and Utilities
4-6
HP DesignJets 1050C and 1055CM Printers Service Manual
Perform the Electronic Systems test as follows:
1 In the Service Tests submenu, scroll to "1. Electronic Systems" and
press Enter.
2 The test will start and the following sequence of messages will
appear on the front panel:
Service Tests
3. Hard Disk Drive
2. EIO Card
4. Ink Pressure System
5. Scan Axis
Top
Enter
Back
↑
↓
Press Enter
1. Electronic Systems
Make Selection
ELECTRONIC SYSTEMS
Running Electronics
Module Test
ELECTRONIC SYSTEMS
Running DRAM Test
ELECTRONIC SYSTEMS
Running Carriage Test
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EEROM functionality
ACMEEP DMA functionality
Fans test
Main PCA to ISS Communication
ISS shift register
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DRAM access functionality
Trailing Cable Test
Yuyu R/W
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PEN ACUMEN
Pen Continuity Digital Cyan / Magenta / Yellow / Black
Carriage ADC
Pen Digital functionality
VPP regulation Cyan / Magenta / Yellow / Black
Line Sensor zero test
Pen Analog Continuity