Ricoh MPC 1500sp User manual

MPC 1500sp

Technicians

Troubleshooting Guide

This guide is designed to help you with known issues.

Produced by M. Drage v1.2

White or Coloured Lines

Before completing any of the following, REMOVE AND

CLEAN THE MAINTENANCE UNIT. Pay particular

attention to the wiper area, the roller and first cap.

CLEAN ONLY WITH A CLOTH DAMPENED WITH

WATER - NO CHEMICALS!

Once the above has been completed, move onto head cleaning or flushing.

Select User tools, Maintenance, Head Cleaning or Flushing.

To check which print head is blocked use the Nozzle Check Pattern.

To clean, select CLEAN from the menu - you will have a check box by each

colour. Use the right arrow to select and the down arrow to move onto the

next item.

This is a good one

This shows that the black and cyan print heads are blocked

Sometimes you will have to perform head cleaning more than once to

resolve the issue. If after 4 head cleans, you still have a problem, then try

head flushing. If after this, there is still an issue, then try physically cleaning

the heads.

ONLY USE SPECIALISED HEAD CLEANING CLOTHS

PART NUMBER B2299311

If this is happening regularly there are a few options you can try depending

on when the lines appear.

1. If the symptom occurs when a printout is made after leaving the

machine unused for a long time, make sure the Engine Firmware is

v1.10 or later. This will ensure the head home position is correct, thus

ensuring the heads are capped correctly on the maintenance unit.

2. Make sure the carriage slide is in the correct position. If it is not then,

as previously the heads will not cap correctly, thus drying out. Use

the following guide to check and adjust.

Correct position Incorrect position

Release the lock for the maintenance unit. To do this turn the adjuster clockwise until the

heads of the triangles line up.

Slide the carriage until the small white part in the photo lines up with the hole.

Lift up the carriage unit and insert a small slot screwdriver into the hole and push until

you hear a click.

If the carriage slide is out of position you may get SC202 and/or jams in

areas A/C.

3. If the machine is installed in an environment with a relative humidity

of 15% or less, the ink will dry out quicker, as this is outside of the

machines operational specification and the machine will have to be

moved to a more suitable environment.

4. If the symptom occurs during regular use, then set SP2 508 001

(Exhalation Interval Change) to a value of 1 (every 15 seconds), also

do ONE of the following:

Set bit 6 of SP3 112 004 (print mode setting1) to a value of 1.

Ink mist can easily be generated when using paper with a high surface

impedance such as recycled paper. This mist can clog the nozzles.

Change the setting of SP3 112 004 (print mode setting 4), so that auto

shading is performed more often.

xxxxx000: Default (1 time per approx 300 pages)

xxxxx001:1.3 times

xxxxx002:2 times

xxxxx003:4 times

xxxxx004:10 times. Remember, the more times it cleans, the

slower the print.

5. Each visit, clean the maintenance unit, if you have tried all of the

above you may have to replace the maintenance unit.

Smudged images

This is usually caused when the customer copies or prints onto unsuitable

paper. If the paper is not absorbent enough, the ink cannot dry before the

print head returns. Unfortunately there is no hard and fast rule as to the type

of paper that should be used - it is just a matter of trial and error.

Smudged copies can also occur if the paper is too thick. This product is able

to feed up to 105gms from the trays, 162gms from the bypass and 220gms

from the one sheet bypass. If the customer is using 220gms paper, then the

envelope lever may have to be used (in the down position), this will raise the

print head by about 2mm giving more clearance. Make sure the lever is put

back to normal (up position) as this may cause quality issues when using

normal paper.

Envelope lever

Grainy colour images, colour registration problems,

uneven shading in b/w mode and jagged lines

These issues are usually caused when the print heads are out of alignment.

Grainy Colour Images

Out of adjustment Correctly adjusted

Colour Registration

Out of adjustment Correctly adjusted

Out of Adjustment Jagged Lines

Correctly adjusted

Uneven Shading in B/W Mode

Out of adjustment Correct adjustment

Before any adjustments are made, please ensure that

you have completed the head cleaning successfully.

To do the adjustment, select User tools, to Maintenance, OK, to

Adjustments, OK. The first adjustment that is displayed is Head Position

Adjustment, OK. There are 2 adjustments to be made, Standard and High

Speed. PLEASE DO BOTH .You will be asked to print out the test page.

YOU WILL NEED A4r Paper in the machine, if there is only 1 cassette

you CAN use the bypass.

This is the test pattern produced in standard mode.

You will notice that you have an adjust option on the display. Select this and

the screen will now show the letters A to I with A highlighted.

Look at A on the test pattern above, if the heads are aligned correctly then

the 2 lines circled in red beneath 0 would be straight, the box would also be

light grey. The above pattern is out of adjustment and the correct setting is

+3 (circled in blue).

To change the setting for A, make sure that A is highlighted on the screen

and press OK. In our case press the + key 3 times, + 3 is now on the screen,

press OK. Check and follow the same procedure for all the letters.

Once this is complete, select END and this will take you back to the

maintenance menu, press OK and reprint the test pattern and check it, this

adjustment may have to done again, especially if it was a long way out.

When the standard adjustment is complete, follow the same procedure for

the high speed mode, the test pattern is slightly easier to see.

Once the above is complete, copy your test chart in B/W mode ensuring that

the grey band A is copied.

Look at this band on your copy. If it is uniform, no further action is required.

If, however you have either of the following 2 effects, further fine

adjustment is required.

1 2

To adjust, enter SP mode 3-002-010 (A).Make a note of the value (the

number above the figure in brackets). Also, go to 3-002-017(H) and

3-002-018 (I) and perform the same adjustment.

Complete the calculation I-A=H. As you have one of the above patterns I-A

will not equal H

Example I = 5, A = 3 H = 3 I – A = 2

If the image is the same as diagram 1above then adjust I, e.g. change I to 6

and this will make the calculation correct.

If the image is the same as diagram 2above, then adjust H, e.g. change H to

In some cases when the formula is correct, you may still have a slight

variation, unfortunately there is nothing else you can do.

White or Dark Lines, Even After Head Cleaning Has

Been Performed.

Please ensure that you have completed head cleaning before doing this

adjustment.

To access the set up, press user tools, until Maintenance, OK , until

adjustment, OK until adjustment, OK, until Paper Feed Adjust and

press OK. You will now be asked to print a test pattern again – please ensure

that you have A4R paper loaded in the machine.

This is the test pattern generated. Ideally 0 should have the clearest box and

the straightest lines. In this case, 2 has the clearest box and straightest line.

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