2-22 Service Manual
7510
841.00
Service image
pipeline
Image pipeline ASIC error The image pipeline for processing the data that
comes from the scanner, prior to being printed, has
failed.
Go to “Black toner cartridge detection error
841.00 Image pipeline ASIC error” on
page 2-109.
842.00
Service
scanner failure
Scanner communication error Controller detected a communication error.
Communication timeout
Go to “842.00 Scanner communication error” on
page 2-110.
842.01
Service
scanner failure
Scanner communication error Controller detected a communication error packet
timeout.
Go to “842.01 Scanner communication error” on
page 2-111.
842.02
Service
scanner failure
Scanner communication error Controller detected a communication error. Invalid
message checksum
Go to “842.02 Scanner communication error” on
page 2-112.
842.03
Service
scanner failure
Scanner communication error Controller detected a communication error. Invalid
message parameter(s)
Go to “842.03 Scanner communication error” on
page 2-112.
842.04
Service
scanner failure
Scanner communication
errors the above components
the above component
Controller detected a communication error. Invalid
message command
Go to “842.04 Scanner communication error” on
page 2-113.
842.10
Service
scanner failure
Scanner unit assembly - ADF
communication error
Communication error occurred between the scanner
controller card assembly and the ADF controller
card assembly.
Go to “842.10 Scanner unit assembly - ADF
communication error” on page 2-113.
842.11
Service
scanner failure
Scanner communication error
(by scanner)
Communication error occurred between the scanner
controller card assembly and the RIP card
assembly.
Go to “842.11 Scanner communication error (by
scanner)” on page 2-114.
842.12
Service
scanner failure
Scanner unit assembly
communication error
Communication error occurred between the scanner
controller card assembly and the RIP card
assembly.
Go to “842.12 Scanner unit assembly
communication error” on page 2-114.
843.00
Service
scanner failure
Sensor (scanner HP) error An error occurred while counting the pulses of the
scanner drive motor assembly.
After the Carriage Motor turned on, the sensor
(scanner HP) did not turn on within the specified
time.
Go to “843.00 Sensor (scanner HP) error” on
page 2-115.
Error code or
message
Error contents Description/Action
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