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Code :

Code: CH
Description: TD cartridge not installed
Causes: Check if TD cartridge is installed.

Code: E7-03
Description: HSYNC cannot be detected.
Causes: LSU (laser diode, reception element, APC circuit) trouble LSU drive circuit (ASIC) trouble

Code: E7-04
Description: CCD white level trouble
Causes: CCD drive circuit (CCD PWB, ASIC harness) trouble Copy lamp lighting trouble (Copy lamp, invertor PWB)

Code: E7-05
Description: CD black level trouble
Causes: CCD drive circuit (CCD PWB, ASIC, harness) trouble

Code: E7-12
Description: Shading trouble (white correction)
Causes: Dirt on white plate for scanning white level

Code: E7-14
Description: ASIC connection trouble
Causes: Improper connection between CPU and ASIC (pattern cut, improper connection of lead pin)

Code: E7-15
Description: Copy lamp OFF trouble
Causes: Copy lamp or copy lamp drive circuit (invertor PWB) trouble Copy lamp disconnection

Code: H2-00
Description: Thermistor open detection
Causes: The fusing thermistor is open.

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