I have a malfunction detected c-2702, thats all it says and it does not print nor do anything

If you wish to get some details; check the site linked here. Pull up older posts.....
http://electro-medical.blogspot.com/

Subject:
C-2702 and/or C-2703 code.
Description:
C-2702 and/or C-2703 code.
Solution:

PROBABLE CAUSES:
1. Failed T/S corona.
Remove the T/S corona unit. If blank copies can be printed without a service code appearing, replace the T/S corona unit (p/n 57AA R715 00).

2. The HV unit has failed.
Replace the HV unit (p/n 56AA 8401 2).

Flashing Diag Code P0122
TP circuit low input
DETECTION CONDITION
• If PCM detects TP sensor voltage at PCM terminal 89 below 0.10 V after engine start, PCM determines
that TP circuit has a malfunction.
POSSIBLE CAUSE
• TP sensor malfunction
• Connector or terminal malfunction
• Open circuit between TP sensor terminal C and PCM terminal 89
• Short to ground circuit between TP sensor terminal C and PCM terminal 89
• Open circuit between TP sensor terminal A and PCM terminal 90
• Short to ground circuit between TP sensor terminal A and PCM terminal 90
• PCM malfunction

Flashing Diag Code P0123
TP circuit high input
DETECTION CONDITION
• If PCM detects TP sensor voltage at PCM terminal 89 is above 4.77 V after engine start, PCM determines
that TP circuit has a malfunction.
POSSIBLE CAUSE
• TP sensor malfunction
• Connector or terminal malfunction
• Open circuit between TP sensor terminal B and PCM terminal 91
• Short to reference voltage (Vref) supply circuit between TP sensor terminal C and PCM terminal 89
• PCM malfunction

Print Head (Where the LASER is) is bad or the circuit board that controls it. Check the connections between them. Print head first if I had a say.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

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01-paper jog malfunction detected
02-transport motor malfunction detected
04-indexer lower limit detected
05- indexer upper limit detected
06-shift motor malfunction detected

I believe you count the amount of blinks to read the codes. First blinks are first number, and second set of blinks are second number. Chaz Moto DC

Fault Code: 12
Symptom: No normal signals are received from the crankshaft position sensor.

Fault Code: 13

Symptom: Intake air pressure sensor-open or short circuit detected.
Fault Code: 14
Diagnostic Code: 03
Symptom: Faulty intake air pressure sensor pipe system
Fault Code: 15
Diagnostic Code: 01
Symptom: Throttle position sensor-open or short circuit detected.
Fault Code: 16
Diagnostic Code: 01
Symptom: A stuck throttle position sensor is detected.
Fault Code: 19
Diagnostic Code: 20
Symptom: Open circuit in the input line of ECU No4 terminal is detected when the start switch is pressed.
Fault Code: 21
Diagnostic Code: 06
Symptom: Coolant temperature sensor-open or short circuit detected.
Probable cause of malfunction: Open or short circuit in wiring harness.
Defective coolant temperature sensor.
Malfunction in ECU.
Improperly installed sensor.
Fault Code: 22
Diagnostic Code: 05
Symptom: Intake air temperature sensor-open or short circuit detected.
Probable cause of malfunction: Open or short circuit in wiring harness.
Defective intake temperature sensor.
Malfunction in ECU.
Improperly installed sensor.
Fault Code: 30
Diagnostic Code: 08
Symptom: The motorcycle has overturned. Probable cause of malfunction:
Overturned.
Malfunction in ECU.
Fault Code: 33
Diagnostic Code: 30
Symptom: Open circuit is detected in the primary lead of the ignition coil (# 1, #4).
Probable cause of malfunction: Open circuit in wiring harness.
Malfunction in ignition coil.
Malfunction in ECU.
Malfunction in a component of ignition cut-off circuit system.
Fault Code: 34
Diagnostic Code: 31
Symptom: Open circuit is detected in the primary lead of the ignition coil (# 2, #3).
Probable cause of malfunction: Open circuit in wiring harness.
Malfunction in ignition coil.
Malfunction in ECU.
Malfunction in a component of ignition cut-off circuit system.
Fault Code: 41
Diagnostic Code: 08
Symptom: Lean angle cut-off switch-open or short circuit detected.
Probable cause of malfunction: Open or short circuit in wiring harness.
Defective lean angle cut-off switch.
Malfunction in ECU.
Fault Code: 42
Diagnostic Code: 07, 21
Symptom: No normal signals are received from the speed sensor; or, an open or
short circuit is detected in the neutral switch.
Probable cause of malfunction: Open or short circuit in wiring harness.
Defective speed sensor.
Malfunction in vehicle speed sensor detected unit.
Defective neutral switch.
Malfunction in the engine side of the neutral switch.
Malfunction in ECU.
Fault Code: 43
Diagnostic Code: 09
Symptom: Supply power to the injector and fuel pump is not normal
Probable cause of malfunction: Open circuit in wiring harness. (red/blue line or blue/yellow line)
Malfunction in ECU.
Fault Code: 44
Diagnostic Code: 60
Symptom: An error is detected while reading or writing on EEPROM.
Probable cause of malfunction: Malfunction in ECU. (The CO adjustment value is not properly written on or read from the internal memory).
Fault Code: 46
Diagnostic Code: --
Symptom: Power supply to the FI system is not normal. Probable cause of malfunction:
Malfunction in "CHARGING SYSTEM".
Fault code: 50
Diagnostic Code: --
Symptom: Faulty ECU memory. When this malfunction is detected, the code
number might not appear on the meter.
Probable cause of malfunction: Malfunction in ECU. (The program and data are not
properly written on or read from the internal memory.)
Fault code: Er-1
Diagnostic Code: --
Symptom: No signals are received from the ECU.
Probable cause of malfunction: Open or short circuit in wiring sub lead.
Malfunction in meter.
Malfunction in ECU.
Fault code: Er-2
Diagnostic Code: --
Symptom: No signals are received from the ECU within the specified duration.
Probable cause of malfunction: Improper connection in wiring sub lead.
Malfunction in meter.
Malfunction in ECU.
Fault code: Er-3
Diagnostic Code: --
Symptom: Data from the ECU cannot be received correctly.
Probable cause of malfunction: Improper connection in wiring sub lead.
Malfunction in meter.
Malfunction in ECU.
Fault code: Er-4
Diagnostic Code: --
Symptom: Non-registered data has been received from the meter.
Probable cause of malfunction: Improper connection in wiring sub lead.
Malfunction in meter.
Malfunction in ECU.

The paper tray has some "fingers" that detect the paper.
Remove the paper and tap the sensors a few times to make sure they are not stuck.
Use lots of mamper, not just one sheet so that there is enough weight to press down on the sensors.
Perhaps it is Earth's gravity that is malfunctioning today :)

Did you check to see if you have the correct driver. If you do, try reinstalling the software. If you still cannot print, check the USB or parallel port cable to make sure that the printer is detected.

Also, make sure that the adapter connecting the printer has not malfunctioned.

If you've checked all of these, then more than likely the printer is defective.

This could be a capacitor if your lucky but can also be the horizontal transistor. The repair could cost you between 60$ and 150$
My opinion; it's not worth it.

This according to the user's guide:
The remaining ink level cannot be correctly detected.
Replace the ink tank and close the Top Cover.
Printing with an ink tank that was once empty may damage the printer.
If you want to continue printing in this condition, you need to release the function for detecting the remaining ink level. Press and hold the RESUME/CANCEL button for at least 5 seconds, and then release it.
* With this operation, releasing the function for detecting the remaining ink level is memorized. Please be advised that Canon shall not be liable for any printer malfunction or damage caused by refilled ink tanks.
See Replacing an Ink Tank.