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Lexmark C750 Service Manual - Page 111

Lexmark C750 Manual

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5060-00x Step 9 Action and questions Make sure the sensors are correctly connected to the duplex system board. Are the cables correctly connected? Yes Repair or replace the duplex option. No Correctly connect the cables. 24x Paper jam Printer configuration and 24x paper jam codes Paper jam code 241 242 243 244 Tray identification Tray 1 Tray 2 Tray 3 Tray 4 Problem related to the following option or tray (depending on installed configuration) Internal 500-sheet tray 500-sheet tray option 500-sheet tray option or 2000-sheet HCIT option 500-sheet tray option A maximum of three optional 500-sheet tray options can be installed or a maximum of one 500-sheet tray option plus a 2000-sheet HCIT option is supported. If a 2000-sheet HCIT is installed, and optional 500-sheet tray is required and must be installed under the duplex option. See "Printer configuration diagrams for 24x paper jams" on page 2-81. 500-sheet drawer option (242, 243, 244) Media does not reach the pass thru sensor. Warning: Whenever the 500-sheet tray is removed, use care as the autocompensator may be in its down position which could result in damage to the autocompensator assembly. The tray empty sensor, paper low sensor, and pass thru sensor for any installed Tray x (x=1 through 4) can be checked using the "Sensor Test" on page 3-24. Step 1 2 Action and questions Is tray x a HCIT 2000-sheet option? Is a 24x paper jam error message displayed? Yes Go to step 2 Go to "2000-Sheet high-capacity input tray (HCIT) (243, 244)" on page 2-79. Go to step 4 No Go to step 3 Go to "Highcapacity input tray (HCIT) 2000sheet option service check" on page 2-128. Inform the customer that media loaded in Tray x does not meet specification Load the media correctly 3 Make sure the media installed in the tray meets specifications. Does the media meet specifications? 4 Make sure the media is loaded correctly. Make sure the side and back restraints are located and seated properly. Is the media loaded correctly? Go to step 5 Diagnostic information 2-77

Section	Page
Table of contents	3
Notices and safety information	11
Laser notice	11
Safety information	17
Preface	20
Definitions	20
1. General information	21
Tools required for service	21
Options and features	22
High performance	22
Print quality	22
Heavy volume reliability	22
Automatic calibration	22
Resolution	23
Toner darkness	23
Printer specifications	23
Dimensions	23
Power and electrical specifications	23
Electrical specifications	24
Operating clearances	24
Fuser web oiler upgrade kit and replacements	24
Upgrade kit	24
Replacements	24
Acoustics	25
Environment	25
Print speed and performance print speed	26
Performance	26
Time to first print	26
Processor	26
Duty cycle	26
Memory configuration	27
Available memory options	27
Media specifications	27
Acronyms	33
2. Diagnostic information	35
Start	35
POR (power-on reset) sequence	36
Symptom tables	37
Symptom table-base printer	37
Symptom table-500-sheet drawer option	38
Symptom table-HCIT 2000-sheet option	38
Symptom table-output expander option	39
Symptom table-5-bin mailbox option	39
Symptom table-finisher option	39
Error code table	40
Sub error code table	51
Programming errors - P101 through P116	54
Understanding the printer operator panel	54
Operator panel buttons	54
Color Menu	56
Utilities Menu	57
User attendance message table	62
Service checks	76
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Diagnostic information

2-77

5060-00

24x Paper jam

Printer configuration and 24x paper jam codes

A maximum of three optional 500-sheet tray options can be installed or a maximum of one 500-sheet tray option

plus a 2000-sheet HCIT option is supported. If a 2000-sheet HCIT is installed, and optional 500-sheet tray is

required and must be installed under the duplex option.

See

“Printer configuration diagrams for 24x paper jams” on page 2-81

500-sheet drawer option (242, 243, 244)

Media does not reach the pass thru sensor.

Warning:

Whenever the 500-sheet tray is removed, use care as the autocompensator may be in its down

position which could result in damage to the autocompensator assembly.

The tray empty sensor, paper low sensor, and pass thru sensor for any installed Tray

(

=1 through 4) can be

checked using the

“Sensor Test” on page 3-24

Make sure the sensors are correctly connected to the

duplex system board.

Are the cables correctly connected?

Repair or replace

the duplex option.

Correctly connect

the cables.

Paper jam code

Tray identification

Problem related to the following option or tray

(depending on installed configuration)

241

Tray 1

Internal 500-sheet tray

242

Tray 2

500-sheet tray option

243

Tray 3

500-sheet tray option or 2000-sheet HCIT option

244

Tray 4

500-sheet tray option

Step

Action and questions

Yes

Is tray

a HCIT 2000-sheet option?

Go to step 2

Go to step 3

Is a 24x paper jam error message displayed?

Go to

“2000-Sheet

high-capacity

input tray (HCIT)

(243, 244)” on

page 2-79

Go to

“High-

capacity input

tray (HCIT) 2000-

sheet option

service check” on

page 2-128

Make sure the media installed in the tray meets

specifications.

Does the media meet specifications?

Go to step 4

Inform the

customer that

media loaded in

Tray

does not

meet specification

Make sure the media is loaded correctly. Make sure the

side and back restraints are located and seated

properly.

Is the media loaded correctly?

Go to step 5

Load the media

correctly

Step

Action and questions

Yes